def test3match_data_empty(self):
"""The match_context is empty and no match_element is expected."""
match_context = MatchContext(b'')
variable_byte_data_model_element = VariableByteDataModelElement(
'variable', self.alphabet)
match_element = variable_byte_data_model_element.get_match_element(
'match', match_context)
self.assertEqual(match_element, None)
self.assertEqual(match_context.match_data, b'')
def test2match_data_not_starting_with_char_from_alphabet(self):
"""The match_context contains characters of the specified alphabet, but does not start with one."""
match_context = MatchContext(b'.this sentence started with a dot.')
variable_byte_data_model_element = VariableByteDataModelElement(
'variable', self.alphabet)
match_element = variable_byte_data_model_element.get_match_element(
'match', match_context)
self.assertEqual(match_element, None)
self.assertEqual(match_context.match_data,
b'.this sentence started with a dot.')
def test3get_match_element_valid_match(self):
"""Parse matching substring from MatchContext and check if the MatchContext was updated with all characters."""
data = b"abcdefghijklm nopqrstuvwxyz.!?"
value = b"abcdefghijklm nopqrstuvwxyz"
match_context = DummyMatchContext(data)
variable_byte_dme = VariableByteDataModelElement(
self.id_, self.alphabet)
match_element = variable_byte_dme.get_match_element(
self.path, match_context)
self.compare_match_results(data, match_element, match_context,
self.id_, self.path, value, value, None)
def test1match_data_in_alphabet(self):
"""The match_context contains only characters of the specified alphabet."""
match_context = MatchContext(
b'this is a normal sentence in lower case.')
variable_byte_data_model_element = VariableByteDataModelElement(
'variable', self.alphabet)
match_element = variable_byte_data_model_element.get_match_element(
'match', match_context)
self.assertEqual(match_element.get_match_string(),
b'this is a normal sentence in lower case')
self.assertEqual(match_context.match_data, b'.')
def get_logind_model(user_name_model=None):
"""Return a model to parse a systemd logind daemon message after any standard logging preamble, e.g. from syslog."""
if user_name_model is None:
user_name_model = VariableByteDataModelElement("user", b"0123456789abcdefghijklmnopqrstuvwxyz-_")
type_children = [
SequenceModelElement("new session", [
FixedDataModelElement("s0", b"New session "),
DecimalIntegerValueModelElement("session"),
FixedDataModelElement("s1", b" of user "),
user_name_model,
FixedDataModelElement("s2", b".")
]),
SequenceModelElement("removed session", [
FixedDataModelElement("s0", b"Removed session "),
DecimalIntegerValueModelElement("session"),
FixedDataModelElement("s1", b".")
]),
SequenceModelElement("logged out", [
FixedDataModelElement("s0", b"Session "),
DecimalIntegerValueModelElement("session"),
FixedDataModelElement("s1", b" logged out. Waiting for processes to exit.")
]),
FixedDataModelElement("failed abandon", b"Failed to abandon session scope: Transport endpoint is not connected")
]
# Will fail on username models including the dot at the end.
model = SequenceModelElement("systemd-logind", [
FixedDataModelElement("sname", b"systemd-logind["),
DecimalIntegerValueModelElement("pid"),
FixedDataModelElement("s0", b"]: "),
FirstMatchModelElement("msg", type_children)
])
return model
def get_logind_model(user_name_model=None):
"""Return a model to parse a systemd logind daemon message after any standard logging preamble, e.g. from syslog."""
if user_name_model is None:
user_name_model = VariableByteDataModelElement(
'user', b'0123456789abcdefghijklmnopqrstuvwxyz-')
type_children = [
SequenceModelElement('new session', [
FixedDataModelElement('s0', b'New session '),
DecimalIntegerValueModelElement('session'),
FixedDataModelElement('s1', b' of user '), user_name_model,
FixedDataModelElement('s2', b'.')
]),
SequenceModelElement('removed session', [
FixedDataModelElement('s0', b'Removed session '),
DecimalIntegerValueModelElement('session'),
FixedDataModelElement('s1', b'.')
])
]
# Will fail on username models including the dot at the end.
model = SequenceModelElement('systemd-logind', [
FixedDataModelElement('sname', b'systemd-logind['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s0', b']: '),
FirstMatchModelElement('msg', type_children)
])
return model
def get_model():
"""Return a model to parse Apache Access logs from the AIT-LDS."""
alphabet = b"!'#$%&\"()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz{|}~=[]"
model = SequenceModelElement("model", [
FirstMatchModelElement("client_ip", [
IpAddressDataModelElement("client_ip"),
FixedDataModelElement("localhost", b"::1")
]),
FixedDataModelElement("sp1", b" "),
VariableByteDataModelElement("client_id", alphabet),
FixedDataModelElement("sp2", b" "),
VariableByteDataModelElement("user_id", alphabet),
FixedDataModelElement("sp3", b" ["),
DateTimeModelElement("time", b"%d/%b/%Y:%H:%M:%S%z"),
FixedDataModelElement("sp4", b'] "'),
FirstMatchModelElement("fm", [
FixedDataModelElement("dash", b"-"),
SequenceModelElement("request", [
FixedWordlistDataModelElement("method", [
b"GET", b"POST", b"PUT", b"HEAD", b"DELETE", b"CONNECT",
b"OPTIONS", b"TRACE", b"PATCH"
]),
FixedDataModelElement("sp5", b" "),
DelimitedDataModelElement("request", b" ", b"\\"),
FixedDataModelElement("sp6", b" "),
DelimitedDataModelElement("version", b'"'),
])
]),
FixedDataModelElement("sp7", b'" '),
DecimalIntegerValueModelElement("status_code"),
FixedDataModelElement("sp8", b" "),
DecimalIntegerValueModelElement("content_size"),
OptionalMatchModelElement(
"combined",
SequenceModelElement("combined", [
FixedDataModelElement("sp9", b' "'),
DelimitedDataModelElement("referer", b'"', b"\\"),
FixedDataModelElement("sp10", b'" "'),
DelimitedDataModelElement("user_agent", b'"', b"\\"),
FixedDataModelElement("sp11", b'"'),
]))
])
return model
def get_model():
"""Return a parser for apache2 access.log."""
new_time_model = DateTimeModelElement("time", b"[%d/%b/%Y:%H:%M:%S%z")
host_name_model = VariableByteDataModelElement(
"host", b"-.01234567890abcdefghijklmnopqrstuvwxyz:")
identity_model = VariableByteDataModelElement(
"ident", b"-.01234567890abcdefghijklmnopqrstuvwxyz:")
user_name_model = VariableByteDataModelElement(
"user", b"0123456789abcdefghijklmnopqrstuvwxyz.-")
request_method_model = FirstMatchModelElement("fm", [
FixedDataModelElement("dash", b"-"),
SequenceModelElement("request", [
FixedWordlistDataModelElement("method", [
b"GET", b"POST", b"PUT", b"HEAD", b"DELETE", b"CONNECT",
b"OPTIONS", b"TRACE", b"PATCH"
]),
FixedDataModelElement("sp5", b" "),
DelimitedDataModelElement("request", b" ", b"\\"),
FixedDataModelElement("sp6", b" "),
DelimitedDataModelElement("version", b'"'),
])
])
status_code_model = DecimalIntegerValueModelElement("status")
size_model = DecimalIntegerValueModelElement("size")
whitespace_str = b" "
model = SequenceModelElement("accesslog", [
host_name_model,
FixedDataModelElement("sp0", whitespace_str), identity_model,
FixedDataModelElement("sp1", whitespace_str), user_name_model,
FixedDataModelElement("sp2", whitespace_str), new_time_model,
FixedDataModelElement("sp3", b'] "'), request_method_model,
FixedDataModelElement("sp6", b'" '), status_code_model,
FixedDataModelElement("sp7", whitespace_str), size_model,
OptionalMatchModelElement(
"combined",
SequenceModelElement("combined", [
FixedDataModelElement("sp9", b' "'),
DelimitedDataModelElement("referer", b'"', b"\\"),
FixedDataModelElement("sp10", b'" "'),
DelimitedDataModelElement("user_agent", b'"', b"\\"),
FixedDataModelElement("sp11", b'"')
]))
])
return model
def get_model():
"""Return a model to parse Apache Access logs from the AIT-LDS."""
alphabet = b'!"#$%&\'()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz{|}~=[]'
model = SequenceModelElement('model', [
FirstMatchModelElement('client_ip', [
IpAddressDataModelElement('client_ip'),
FixedDataModelElement('localhost', b'::1')
]),
FixedDataModelElement('sp1', b' '),
VariableByteDataModelElement('client_id', alphabet),
FixedDataModelElement('sp2', b' '),
VariableByteDataModelElement('user_id', alphabet),
FixedDataModelElement('sp3', b' ['),
DateTimeModelElement('time', b'%d/%b/%Y:%H:%M:%S'),
FixedDataModelElement('sp4', b' +'),
DecimalIntegerValueModelElement('tz'),
FixedDataModelElement('sp5', b'] "'),
FirstMatchModelElement('fm', [
FixedDataModelElement('dash', b'-'),
SequenceModelElement('request', [
FixedWordlistDataModelElement('method', [
b'GET', b'POST', b'PUT', b'HEAD', b'DELETE', b'CONNECT', b'OPTIONS', b'TRACE', b'PATCH']),
FixedDataModelElement('sp6', b' '),
DelimitedDataModelElement('request', b' ', b'\\'),
FixedDataModelElement('sp7', b' '),
DelimitedDataModelElement('version', b'"'),
])
]),
FixedDataModelElement('sp8', b'" '),
DecimalIntegerValueModelElement('status_code'),
FixedDataModelElement('sp9', b' '),
DecimalIntegerValueModelElement('content_size'),
OptionalMatchModelElement(
'combined', SequenceModelElement('combined', [
FixedDataModelElement('sp10', b' "'),
DelimitedDataModelElement('referer', b'"', b'\\'),
FixedDataModelElement('sp11', b'" "'),
DelimitedDataModelElement('user_agent', b'"', b'\\'),
FixedDataModelElement('sp12', b'"'),
])),
])
return model
def get_model(user_name_model=None):
"""Return a model to parse a su session information message after any standard logging preamble, e.g. from syslog."""
if user_name_model is None:
user_name_model = VariableByteDataModelElement(
"user", b"0123456789abcdefghijklmnopqrstuvwxyz.-")
srcuser_name_model = VariableByteDataModelElement(
"srcuser", b"0123456789abcdefghijklmnopqrstuvwxyz.-")
type_children = [
SequenceModelElement("su-good", [
FixedDataModelElement("s0", b"Successful su for "),
user_name_model,
FixedDataModelElement("s1", b" by "), srcuser_name_model
]),
SequenceModelElement("su-good", [
FixedDataModelElement("s0", b"+ "),
DelimitedDataModelElement("terminal", b" "),
FixedDataModelElement("s1", b" "), srcuser_name_model,
FixedDataModelElement("s2", b":"), user_name_model
]),
SequenceModelElement("pam", [
FixedDataModelElement("s0", b"pam_unix(su:session): session "),
FixedWordlistDataModelElement("change", [b"opened", b"closed"]),
FixedDataModelElement("s1", b" for user "), user_name_model,
OptionalMatchModelElement(
"openby",
SequenceModelElement("userinfo", [
FixedDataModelElement("s0", b" by (uid="),
DecimalIntegerValueModelElement("uid"),
FixedDataModelElement("s1", b")")
]))
])
]
model = SequenceModelElement("su", [
FixedDataModelElement("sname", b"su["),
DecimalIntegerValueModelElement("pid"),
FixedDataModelElement("s0", b"]: "),
FirstMatchModelElement("msg", type_children)
])
return model
def get_model(user_name_model=None):
"""Return a model to parse a su session information message after any standard logging preamble, e.g. from syslog."""
if user_name_model is None:
user_name_model = VariableByteDataModelElement(
'user', b'0123456789abcdefghijklmnopqrstuvwxyz.-')
srcuser_name_model = VariableByteDataModelElement(
'srcuser', b'0123456789abcdefghijklmnopqrstuvwxyz.-')
type_children = [
SequenceModelElement('su-good', [
FixedDataModelElement('s0', b'Successful su for '),
user_name_model,
FixedDataModelElement('s1', b' by '), srcuser_name_model
]),
SequenceModelElement('su-good', [
FixedDataModelElement('s0', b'+ '),
DelimitedDataModelElement('terminal', b' '),
FixedDataModelElement('s1', b' '), srcuser_name_model,
FixedDataModelElement('s2', b':'), user_name_model
]),
SequenceModelElement('pam', [
FixedDataModelElement('s0', b'pam_unix(su:session): session '),
FixedWordlistDataModelElement('change', [b'opened', b'closed']),
FixedDataModelElement('s1', b' for user '), user_name_model,
OptionalMatchModelElement(
'openby',
SequenceModelElement('userinfo', [
FixedDataModelElement('s0', b' by (uid='),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s1', b')')
]))
])
]
model = SequenceModelElement('su', [
FixedDataModelElement('sname', b'su['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s0', b']: '),
FirstMatchModelElement('msg', type_children)
])
return model
def get_model():
"""Get the model."""
interface_name_model = VariableByteDataModelElement('interface', b'0123456789abcdefghijklmnopqrstuvwxyz.')
type_children = [
SequenceModelElement('exit', [
FixedDataModelElement('s0', b'ntpd exiting on signal '),
DecimalIntegerValueModelElement('signal')
]),
SequenceModelElement('listen-drop', [
FixedDataModelElement('s0', b'Listen and drop on '),
DecimalIntegerValueModelElement('fd'),
FixedDataModelElement('s1', b' '),
interface_name_model,
FixedDataModelElement('s2', b' '),
FirstMatchModelElement('address', [
IpAddressDataModelElement('ipv4'),
DelimitedDataModelElement('ipv6', b' ')
]),
FixedDataModelElement('s3', b' UDP 123')
]),
SequenceModelElement('listen-normal', [
FixedDataModelElement('s0', b'Listen normally on '),
DecimalIntegerValueModelElement('fd'),
FixedDataModelElement('s1', b' '),
interface_name_model,
FixedDataModelElement('s2', b' '),
IpAddressDataModelElement('ip'),
FirstMatchModelElement('msg', [
FixedDataModelElement('port-new', b':123'),
FixedDataModelElement('port-old', b' UDP 123')
])
]),
SequenceModelElement('listen-routing', [
FixedDataModelElement('s0', b'Listening on routing socket on fd #'),
DecimalIntegerValueModelElement('fd'),
FixedDataModelElement('s1', b' for interface updates')
]),
FixedDataModelElement('new-interfaces', b'new interface(s) found: waking up resolver'),
FixedDataModelElement('ntp-io', b'ntp_io: estimated max descriptors: 1024, initial socket boundary: 16'),
FixedDataModelElement('peers-refreshed', b'peers refreshed'),
SequenceModelElement('precision', [
FixedDataModelElement('s0', b'proto: precision = '),
DecimalFloatValueModelElement('precision'),
FixedDataModelElement('s1', b' usec')])]
model = SequenceModelElement('ntpd', [
FixedDataModelElement('sname', b'ntpd['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s0', b']: '),
FirstMatchModelElement('msg', type_children)
])
return model
def test6get_match_element_match_context_input_validation(self):
"""Check if an exception is raised, when other classes than MatchContext are used in get_match_element."""
model_element = VariableByteDataModelElement(self.id_, self.alphabet)
data = b"abcdefghijklmnopqrstuvwxyz.!?"
model_element.get_match_element(self.path, DummyMatchContext(data))
model_element.get_match_element(self.path, MatchContext(data))
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, MatchElement(None, data, None, None))
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, data)
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, data.decode())
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, 123)
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, 123.22)
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, True)
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, None)
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, [])
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, {"key": MatchContext(data)})
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, set())
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, ())
self.assertRaises(AttributeError, model_element.get_match_element,
self.path, model_element)
def get_model():
"""Return a parser for apache2 access.log."""
new_time_model = SequenceModelElement('time_model', [
DateTimeModelElement('time', b'[%d/%b/%Y:%H:%M:%S '),
FixedWordlistDataModelElement('sign', [b'+', b'-']),
DecimalIntegerValueModelElement('tz'),
FixedDataModelElement('bracket', b']')
])
host_name_model = VariableByteDataModelElement(
'host', b'-.01234567890abcdefghijklmnopqrstuvwxyz:')
identity_model = VariableByteDataModelElement(
'ident', b'-.01234567890abcdefghijklmnopqrstuvwxyz:')
user_name_model = VariableByteDataModelElement(
'user', b'0123456789abcdefghijklmnopqrstuvwxyz.-')
request_method_model = FixedWordlistDataModelElement(
'method', [
b'GET', b'POST', b'PUT', b'HEAD', b'DELETE', b'CONNECT',
b'OPTIONS', b'TRACE', b'PATCH'
])
request_model = VariableByteDataModelElement(
'request',
b'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-/()[]{}!$%&=<?*+'
)
version_model = VariableByteDataModelElement('version', b'0123456789.')
status_code_model = DecimalIntegerValueModelElement('status')
size_model = DecimalIntegerValueModelElement('size')
user_agent_model = VariableByteDataModelElement(
'useragent',
b'0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-/()[]{}!$%&=<?*+;:_ '
)
whitespace_str = b' '
model = SequenceModelElement('accesslog', [
host_name_model,
FixedDataModelElement('sp0', whitespace_str),
identity_model,
FixedDataModelElement('sp1', whitespace_str),
user_name_model,
FixedDataModelElement('sp2', whitespace_str),
new_time_model,
FixedDataModelElement('sp3', b' "'),
request_method_model,
FixedDataModelElement('sp4', whitespace_str),
request_model,
FixedDataModelElement('sp5', b' HTTP/'),
version_model,
FixedDataModelElement('sp6', b'" '),
status_code_model,
FixedDataModelElement('sp7', whitespace_str),
size_model,
FixedDataModelElement('sp8', b' "-" "'),
user_agent_model,
FixedDataModelElement('sp9', b'"'),
])
return model
def get_model(time_model=None):
"""
Return the model for parsing a standard syslog preamble including timestamp and hostname.
@param time_model when not none, the given model element is used for parsing timestamps. Otherwise a standard DateTimeModelElement
with format b'%b %d %H:%M:%S' is created. CAVEAT: the standard model may not work when log data timestamp locale does not match
host or shell environment locale. See MultiLocaleDatetime_modelElement instead.
"""
if time_model is None:
time_model = DateTimeModelElement('time', b'%b %d %H:%M:%S')
host_name_model = VariableByteDataModelElement(
'host', b'-.01234567890abcdefghijklmnopqrstuvwxyz')
model = SequenceModelElement('syslog', [
time_model,
FixedDataModelElement('sp0', b' '), host_name_model,
FixedDataModelElement('sp1', b' ')
])
return model
def test6null_value(self):
"""Test if null values are parsed to "null"."""
key_parser_dict = {
"works":
VariableByteDataModelElement("id", b"abc123"),
"problem":
FixedWordlistDataModelElement("wordlist",
[b"allowed value", b"null"])
}
data1 = b"""{
"works": "abc",
"problem": "allowed value"
}"""
data2 = b"""{
"works": "123",
"problem": null
}"""
json_model_element = JsonModelElement('json', key_parser_dict)
self.assertIsNotNone(
json_model_element.get_match_element('match', MatchContext(data1)))
self.assertIsNotNone(
json_model_element.get_match_element('match', MatchContext(data2)))
def get_model(user_name_model=None):
"""Return a model to parse a cron message logged via syslog after any standard logging preamble, e.g. from syslog."""
if user_name_model is None:
user_name_model = VariableByteDataModelElement(
'user', b'0123456789abcdefghijklmnopqrstuvwxyz.-')
type_children = [
SequenceModelElement('exec', [
FixedDataModelElement('s0', b'('), user_name_model,
FixedDataModelElement('s1', b') CMD '),
AnyByteDataModelElement('command')
]),
SequenceModelElement('pam', [
FixedDataModelElement('s0', b'pam_unix(cron:session): session '),
FixedWordlistDataModelElement('change', [b'opened', b'closed']),
FixedDataModelElement('s1', b' for user '), user_name_model,
OptionalMatchModelElement(
'openby', FixedDataModelElement('default', b' by (uid=0)'))
])
]
model = FirstMatchModelElement('cron', [
SequenceModelElement('std', [
FixedDataModelElement('sname', b'CRON['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s0', b']: '),
FirstMatchModelElement('msgtype', type_children)
]),
SequenceModelElement('low', [
FixedDataModelElement('sname', b'cron['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s0', b']: (*system*'),
DelimitedDataModelElement('rname', b') RELOAD ('),
FixedDataModelElement('s1', b') RELOAD ('),
DelimitedDataModelElement('fname', b')'),
FixedDataModelElement('s2', b')'),
])
])
return model
def test4get_match_element_no_match(self):
"""Parse not matching substring from MatchContext and check if the MatchContext was not changed."""
data = b""
match_context = DummyMatchContext(data)
variable_byte_dme = VariableByteDataModelElement(
self.id_, self.alphabet)
match_element = variable_byte_dme.get_match_element(
self.path, match_context)
self.compare_no_match_results(data, match_element, match_context)
data = b"!abcdefghijklm nopqrstuvwxyz.!?"
match_context = DummyMatchContext(data)
variable_byte_dme = VariableByteDataModelElement(
self.id_, self.alphabet)
match_element = variable_byte_dme.get_match_element(
self.path, match_context)
self.compare_no_match_results(data, match_element, match_context)
def get_model(user_name_model=None):
"""Return a model to parse a sshd information message after any standard logging preamble, e.g. from syslog."""
if user_name_model is None:
user_name_model = VariableByteDataModelElement(
"user", b"0123456789abcdefghijklmnopqrstuvwxyz.-")
from_str = b" from "
port = b" port "
preauth = b" [preauth]"
type_children = [
SequenceModelElement("accepted key", [
FixedDataModelElement("s0", b"Accepted publickey for "),
user_name_model,
FixedDataModelElement("s1", from_str),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s2", port),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s3", b" ssh2: "),
DelimitedDataModelElement(
"asym-algorithm", b" ", consume_delimiter=True),
VariableByteDataModelElement(
"fingerprint",
b"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+/:"
),
OptionalMatchModelElement(
"opt",
SequenceModelElement("seq", [
FixedDataModelElement("s4", b" ID "),
DelimitedDataModelElement("id", b" "),
FixedDataModelElement("s5", b" (serial "),
DecimalIntegerValueModelElement("serial"),
FixedDataModelElement("s6", b") CA "),
AnyByteDataModelElement("algorithm_details")
]))
]),
SequenceModelElement("btmp-perm", [
FixedDataModelElement(
"s0",
b"Excess permission or bad ownership on file /var/log/btmp")
]),
SequenceModelElement("close-sess", [
FixedDataModelElement("s0", b"Close session: user "),
user_name_model,
FixedDataModelElement("s1", from_str),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s2", port),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s3", b" id "),
DecimalIntegerValueModelElement("userid")
]),
SequenceModelElement("closing", [
FixedDataModelElement("s0", b"Closing connection to "),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s1", port),
DecimalIntegerValueModelElement("port")
]),
SequenceModelElement("closed", [
FixedDataModelElement("s0", b"Connection closed by "),
FirstMatchModelElement("fm", [
IpAddressDataModelElement("clientip"),
SequenceModelElement("seq", [
FixedWordlistDataModelElement(
"user-type", [b"authenticating", b"invalid"]),
FixedDataModelElement("s1", b" user "),
DelimitedDataModelElement("user", b" "),
FixedDataModelElement("s2", b" "),
FirstMatchModelElement("fm", [
IpAddressDataModelElement("ip"),
IpAddressDataModelElement("ipv6", ipv6=True)
]),
FixedDataModelElement("s3", b" port "),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s4", b" [preauth]")
])
])
]),
SequenceModelElement("connect", [
FixedDataModelElement("s0", b"Connection from "),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s1", port),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s2", b" on "),
IpAddressDataModelElement("serverip"),
FixedDataModelElement("s3", port),
DecimalIntegerValueModelElement("sport")
]),
SequenceModelElement("disconnectreq", [
FixedDataModelElement("s0", b"Received disconnect from "),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s1", port),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s2", b":"),
DecimalIntegerValueModelElement("session"),
FixedDataModelElement("s3", b": "),
FixedWordlistDataModelElement("reason", [b"disconnected by user"])
]),
SequenceModelElement("disconnected", [
FixedDataModelElement("s0", b"Disconnected from "),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s1", port),
DecimalIntegerValueModelElement("port")
]),
FixedDataModelElement("error-bind",
b"error: bind: Cannot assign requested address"),
SequenceModelElement("error-max-auth", [
FixedDataModelElement(
"s0", b"error: maximum authentication attempts exceeded for "),
OptionalMatchModelElement(
"opt", FixedDataModelElement("invalid", b"invalid user ")),
DelimitedDataModelElement("user", b" "),
FixedDataModelElement("s1", b" from "),
FirstMatchModelElement("fm", [
IpAddressDataModelElement("from_ip"),
IpAddressDataModelElement("from_ip_v6", ipv6=True)
]),
FixedDataModelElement("s2", b" port "),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s3", b" ssh2 [preauth]")
]),
FixedDataModelElement("error-cert-exp",
b"error: Certificate invalid: expired"),
FixedDataModelElement("error-cert-not-yet-valid",
b"error: Certificate invalid: not yet valid"),
FixedDataModelElement(
"error-cert-not-listed-principal",
b"error: Certificate invalid: name is not a listed principal"),
FixedDataModelElement("error-refused-by-options",
b"error: Refused by certificate options"),
SequenceModelElement("error-channel-setup", [
FixedDataModelElement(
"s0",
b"error: channel_setup_fwd_listener: cannot listen to port: "),
DecimalIntegerValueModelElement("port")
]),
SequenceModelElement("error-auth-key", [
FixedDataModelElement("s0", b"error: Authentication key "),
DelimitedDataModelElement("asym-algorithm", b" "),
FixedDataModelElement("s1", b" "),
DelimitedDataModelElement("hash", b" "),
FixedDataModelElement("s2", b" revoked by file "),
AnyByteDataModelElement("file")
]),
SequenceModelElement("error-load-key", [
FixedDataModelElement("s0", b"error: Could not load host key: "),
AnyByteDataModelElement("file")
]),
SequenceModelElement("ident-missing", [
FixedDataModelElement(
"s0", b"Did not receive identification string from "),
IpAddressDataModelElement("clientip")
]),
SequenceModelElement("invalid-user", [
FixedDataModelElement("s0", b"Invalid user "),
DelimitedDataModelElement("user", from_str),
FixedDataModelElement("s1", from_str),
FirstMatchModelElement("fm", [
IpAddressDataModelElement("from_ip"),
IpAddressDataModelElement("from_ip_v6", ipv6=True)
]),
FixedDataModelElement("s2", b" port "),
DecimalIntegerValueModelElement("port")
]),
SequenceModelElement("invalid-user-auth-req", [
FixedDataModelElement("s0",
b"input_userauth_request: invalid user "),
DelimitedDataModelElement("user", preauth),
FixedDataModelElement("s1", preauth)
]),
SequenceModelElement("postppk", [
FixedDataModelElement("s0", b"Postponed publickey for "),
user_name_model,
FixedDataModelElement("s1", from_str),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s2", port),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s3", b" ssh2 [preauth]")
]),
SequenceModelElement("readerr", [
FixedDataModelElement("s0", b"Read error from remote host "),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s1", b": Connection timed out")
]),
SequenceModelElement("disconnect", [
FixedDataModelElement("s0", b"Received disconnect from "),
FirstMatchModelElement("fm", [
IpAddressDataModelElement("from_ip"),
IpAddressDataModelElement("from_ip_v6", ipv6=True)
]),
FixedDataModelElement("s1", b": 11: "),
FirstMatchModelElement("reason", [
FixedDataModelElement("disconnected", b"disconnected by user"),
SequenceModelElement("remotemsg", [
DelimitedDataModelElement("msg", preauth),
FixedDataModelElement("s0", preauth)
])
])
]),
SequenceModelElement("signal", [
FixedDataModelElement("s0", b"Received signal "),
DecimalIntegerValueModelElement("signal"),
FixedDataModelElement("s1", b"; terminating.")
]),
SequenceModelElement("server", [
FixedDataModelElement("s0", b"Server listening on "),
DelimitedDataModelElement("serverip", b" "),
FixedDataModelElement("s1", port),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s2", b".")
]),
SequenceModelElement("oom-adjust", [
FixedDataModelElement("s0", b"Set /proc/self/oom_score_adj "),
OptionalMatchModelElement(
"from", FixedDataModelElement("default", b"from 0 ")),
FixedDataModelElement("s1", b"to "),
DecimalIntegerValueModelElement(
"newval",
value_sign_type=DecimalIntegerValueModelElement.
SIGN_TYPE_OPTIONAL)
]),
SequenceModelElement("session-start", [
FixedDataModelElement("s0", b"Starting session: "),
FirstMatchModelElement("sess-info", [
SequenceModelElement("shell", [
FixedDataModelElement("s0", b"shell on "),
DelimitedDataModelElement("terminal", b" ")
]),
SequenceModelElement(
"subsystem",
[FixedDataModelElement("s0", b"subsystem \"sftp\"")]),
SequenceModelElement("forced-command", [
FixedDataModelElement("s0",
b"forced-command (key-option) \""),
DelimitedDataModelElement("command", b"\" for "),
FixedDataModelElement("s1", b"\"")
])
]),
FixedDataModelElement("s1", b" for "), user_name_model,
FixedDataModelElement("s2", from_str),
IpAddressDataModelElement("clientip"),
FixedDataModelElement("s3", port),
DecimalIntegerValueModelElement("port"),
OptionalMatchModelElement(
"idinfo",
SequenceModelElement("idinfo", [
FixedDataModelElement("s0", b" id "),
DecimalIntegerValueModelElement("id")
]))
]),
SequenceModelElement("transferred", [
FixedDataModelElement("s0", b"Transferred: sent "),
DecimalIntegerValueModelElement("sent"),
FixedDataModelElement("s1", b", received "),
DecimalIntegerValueModelElement("received"),
FixedDataModelElement("s1", b" bytes")
]),
SequenceModelElement("pam", [
FixedDataModelElement("s0", b"pam_unix(sshd:session): session "),
FixedWordlistDataModelElement("change", [b"opened", b"closed"]),
FixedDataModelElement("s1", b" for user "), user_name_model,
OptionalMatchModelElement(
"openby", FixedDataModelElement("default", b" by (uid=0)"))
]),
SequenceModelElement("child", [
FixedDataModelElement("s0", b"User child is on pid "),
DecimalIntegerValueModelElement("pid")
]),
SequenceModelElement("failed/accept", [
FixedWordlistDataModelElement("s0", [b"Failed ", b"Accepted "]),
FixedWordlistDataModelElement(
"type", [b"password", b"none", b"publickey"]),
FixedDataModelElement("s1", b" for "),
OptionalMatchModelElement(
"opt", FixedDataModelElement("invalid", b"invalid user ")),
DelimitedDataModelElement("user", b" "),
FixedDataModelElement("s2", b" from "),
FirstMatchModelElement("fm", [
IpAddressDataModelElement("from_ip"),
IpAddressDataModelElement("from_ip_v6", ipv6=True)
]),
FixedDataModelElement("s3", b" port "),
DecimalIntegerValueModelElement("port"),
AnyByteDataModelElement("service")
]),
SequenceModelElement("disconnecting", [
FixedDataModelElement("s0", b"Disconnecting "),
FixedWordlistDataModelElement("type",
[b"authenticating", b"invalid"]),
FixedDataModelElement("s1", b" user "),
DelimitedDataModelElement("user", b" "),
FixedDataModelElement("s1", b" "),
IpAddressDataModelElement("ip"),
FixedDataModelElement("s2", b" port "),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement(
"s3", b": Too many authentication failures [preauth]")
]),
SequenceModelElement("fatal", [
FixedDataModelElement(
"s0", b"fatal: Timeout before authentication for "),
IpAddressDataModelElement("ip"),
FixedDataModelElement("s1", b" port "),
DecimalIntegerValueModelElement("port")
]),
SequenceModelElement("cert-auth", [
FixedDataModelElement("s0", b"cert: Authentication tried for "),
DelimitedDataModelElement("user", b" "),
FixedDataModelElement(
"s1",
b" with valid certificate but not from a permitted source address ("
),
IpAddressDataModelElement("ip"),
FixedDataModelElement("s2", b")."),
]),
SequenceModelElement("change-root-dir", [
FixedDataModelElement("s0", b"Changed root directory to \""),
DelimitedDataModelElement("root-dir", b"\""),
FixedDataModelElement("s1", b"\"")
]),
FixedDataModelElement("subsystem-request",
b"subsystem request for sftp"),
SequenceModelElement("conn-write-poll", [
FixedDataModelElement("s0",
b"packet_write_poll: Connection from "),
IpAddressDataModelElement("from_ip"),
FixedDataModelElement("s1", b" port "),
DecimalIntegerValueModelElement("port"),
FixedDataModelElement("s2", b": Host is down")
]),
SequenceModelElement("debug", [
FixedDataModelElement("s0", b"debug"),
DecimalIntegerValueModelElement("debug-num"),
FixedDataModelElement("s1", b": "),
FirstMatchModelElement("fm", [
SequenceModelElement("seq1", [
FixedDataModelElement("s2", b"Got "),
DecimalIntegerValueModelElement("num1"),
FixedDataModelElement("s3", b"/"),
DecimalIntegerValueModelElement("num2"),
FixedDataModelElement("s4", b" for keepalive")
]),
SequenceModelElement("seq2", [
FixedDataModelElement("s2", b"channel "),
DecimalIntegerValueModelElement("channel-num"),
FixedDataModelElement("s3", b": request "),
DelimitedDataModelElement("mail", b" "),
FixedDataModelElement("s4", b" confirm "),
DecimalIntegerValueModelElement("num")
]),
SequenceModelElement("seq3", [
FixedDataModelElement("s2", b"send packet: type "),
DecimalIntegerValueModelElement("packet-type")
]),
SequenceModelElement("seq4", [
FixedDataModelElement("s2", b"receive packet: type "),
DecimalIntegerValueModelElement("packet-type")
]),
FixedDataModelElement("do-cleanup", b"do_cleanup"),
SequenceModelElement("seq5", [
FixedDataModelElement("s2",
b"session_pty_cleanup: session "),
DecimalIntegerValueModelElement("sess-num"),
FixedDataModelElement("s3", b" release "),
AnyByteDataModelElement("file")
])
])
]),
SequenceModelElement("pam_succeed_if", [
FixedDataModelElement(
"s0", b"pam_succeed_if(sshd:auth): requirement \"uid >= "),
DecimalIntegerValueModelElement("uid"),
FixedDataModelElement("s1", b"\" not met by user \""),
DelimitedDataModelElement("user", b"\""),
FixedDataModelElement("s2", b"\"")
]),
]
model = SequenceModelElement("sshd", [
FixedDataModelElement("sname", b"sshd["),
DecimalIntegerValueModelElement("pid"),
FixedDataModelElement("s0", b"]: "),
FirstMatchModelElement("msg", type_children)
])
return model
class JsonModelElementTest(unittest.TestCase):
"""Unittests for the JsonModelElement."""
single_line_json = b'{"menu": {"id": "file", "value": "File", "popup": {"menuitem": [{"value": "New", "onclick": "CreateNewDoc()"}, {' \
b'"value": "Open", "onclick": "OpenDoc()"}, {"value": "Close", "onclick": "CloseDoc()"}]}}}'
single_line_with_optional_key_json = b'{"menu": {"id": "file", "value": "File", "popup": {"menuitem": [{"value": "New", "onclick":' \
b' "CreateNewDoc()", "clickable": false}, {"value": "Open", "onclick": "OpenDoc()"}, {"value": ' \
b'"Close", "onclick": "CloseDoc()", "clickable": false}]}}}'
single_line_missing_key_json = b'{"menu": {"id": "file", "popup": {"menuitem": [{"value": "New", "onclick": "CreateNewDoc()"}, {' \
b'"value": "Open", "onclick": "OpenDoc()"}, {"value": "Close", "onclick": "CloseDoc()"}]}}}'
single_line_different_order_with_optional_key_json = \
b'{"menu": {"value": "File","popup": {"menuitem": [{"clickable": false, "value": "New", "onclick": "CreateNewDoc()"}, {' \
b'"onclick": "OpenDoc()", "value": "Open"}, {"value": "Close", "onclick": "CloseDoc()", "clickable": false}]}, "id": "file"}}'
multi_line_json = b"""{
"menu": {
"id": "file",
"value": "File",
"popup": {
"menuitem": [
{"value": "New", "onclick": "CreateNewDoc()"},
{"value": "Open", "onclick": "OpenDoc()"},
{"value": "Close", "onclick": "CloseDoc()"}
]
}
}
}"""
everything_new_line_json = b"""{
"menu":
{
"id": "file",
"value": "File",
"popup":
{
"menuitem":
[
{
"value": "New",
"onclick": "CreateNewDoc()"
},
{
"value": "Open",
"onclick": "OpenDoc()"
},
{
"value": "Close",
"onclick": "CloseDoc()"
}
]
}
}
}"""
alphabet = b'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789_-.'
key_parser_dict = {
'menu': {
'id': VariableByteDataModelElement('id', alphabet),
'value': VariableByteDataModelElement('value', alphabet),
'popup': {
'menuitem': [{
'value':
FixedWordlistDataModelElement('buttonNames',
[b'New', b'Open', b'Close']),
'onclick':
FixedWordlistDataModelElement(
'buttonOnclick',
[b'CreateNewDoc()', b'OpenDoc()', b'CloseDoc()']),
'optional_key_clickable':
FixedWordlistDataModelElement('clickable',
[b'true', b'false'])
}]
}
}
}
key_parser_dict_allow_all = {
'menu': {
'id': VariableByteDataModelElement('id', alphabet),
'value': VariableByteDataModelElement('value', alphabet),
'popup': 'ALLOW_ALL'
}
}
def test1get_valid_match_elements(self):
"""Get valid json elements with different formats."""
json_model_element = JsonModelElement('json', self.key_parser_dict)
match = json_model_element.get_match_element(
'match', MatchContext(self.single_line_json))
self.assertEqual(match.match_object, json.loads(self.single_line_json))
match = json_model_element.get_match_element(
'match', MatchContext(self.multi_line_json))
self.assertEqual(match.match_object, json.loads(self.multi_line_json))
match = json_model_element.get_match_element(
'match', MatchContext(self.everything_new_line_json))
self.assertEqual(match.match_object,
json.loads(self.everything_new_line_json))
def test2optional_key_prefix(self):
"""Validate optional keys with the optional_key_prefix."""
json_model_element = JsonModelElement('json', self.key_parser_dict)
match = json_model_element.get_match_element(
'match', MatchContext(self.single_line_with_optional_key_json))
self.assertEqual(match.match_object,
json.loads(self.single_line_with_optional_key_json))
def test3missing_key(self):
"""Check if no match is returned if a key is missing."""
json_model_element = JsonModelElement('json', self.key_parser_dict)
match = json_model_element.get_match_element(
'match', MatchContext(self.single_line_missing_key_json))
self.assertEqual(match, None)
def test4allow_all_dict(self):
"""Test a simplified key_parser_dict with ALLOW_ALL."""
json_model_element = JsonModelElement('json',
self.key_parser_dict_allow_all)
match = json_model_element.get_match_element(
'match', MatchContext(self.single_line_json))
self.assertEqual(match.match_object, json.loads(self.single_line_json))
match = json_model_element.get_match_element(
'match', MatchContext(self.multi_line_json))
self.assertEqual(match.match_object, json.loads(self.multi_line_json))
match = json_model_element.get_match_element(
'match', MatchContext(self.everything_new_line_json))
self.assertEqual(match.match_object,
json.loads(self.everything_new_line_json))
def test5different_order_keys(self):
"""Test if keys differently ordered than in the key_parser_dict are parsed properly."""
json_model_element = JsonModelElement('json', self.key_parser_dict)
match = json_model_element.get_match_element(
'match',
MatchContext(
self.single_line_different_order_with_optional_key_json))
self.assertEqual(
match.match_object,
json.loads(
self.single_line_different_order_with_optional_key_json))
json_model_element = JsonModelElement('json',
self.key_parser_dict_allow_all)
match = json_model_element.get_match_element(
'match',
MatchContext(
self.single_line_different_order_with_optional_key_json))
self.assertEqual(
match.match_object,
json.loads(
self.single_line_different_order_with_optional_key_json))
def test6null_value(self):
"""Test if null values are parsed to "null"."""
key_parser_dict = {
"works":
VariableByteDataModelElement("id", b"abc123"),
"problem":
FixedWordlistDataModelElement("wordlist",
[b"allowed value", b"null"])
}
data1 = b"""{
"works": "abc",
"problem": "allowed value"
}"""
data2 = b"""{
"works": "123",
"problem": null
}"""
json_model_element = JsonModelElement('json', key_parser_dict)
self.assertIsNotNone(
json_model_element.get_match_element('match', MatchContext(data1)))
self.assertIsNotNone(
json_model_element.get_match_element('match', MatchContext(data2)))
def get_model():
"""Return a model to parse a audispd message logged via syslog after any standard logging preamble, e.g. from syslog."""
class ExecArgumentDataModelElement():
"""This is a helper class for parsing the (encoded) exec argument strings found within audit logs."""
def __init__(self, element_id):
self.element_id = element_id
@staticmethod
def get_child_elements():
"""Get the children of this element (none)."""
return None
def get_match_element(self, path, match_context):
"""
Find the maximum number of bytes belonging to an exec argument.
@return a match when at least two bytes were found including the delimiters.
"""
data = match_context.match_data
match_len = 0
match_value = b''
if data[0] == ord(b'"'):
match_len = data.find(b'"', 1)
if match_len == -1:
return None
match_value = data[1:match_len]
match_len += 1
elif data.startswith(b'(null)'):
match_len = 6
match_value = None
else:
# Must be upper case hex encoded:
next_value = -1
for d_byte in data:
if 0x30 <= d_byte <= 0x39:
d_byte -= 0x30
elif 0x41 <= d_byte <= 0x46:
d_byte -= 0x37
else:
break
if next_value == -1:
next_value = (d_byte << 4)
else:
match_value += bytearray(((next_value | d_byte), ))
next_value = -1
match_len += 1
if next_value != -1:
return None
match_data = data[:match_len]
match_context.update(match_data)
return MatchElement("%s/%s" % (path, self.element_id), match_data,
match_value, None)
pam_status_word_list = FixedWordlistDataModelElement(
'status', [b'failed', b'success'])
pid = b' pid='
uid = b' uid='
auid = b' auid='
ses = b' ses='
exe = b' exe="'
hostname = b'" hostname='
addr = b' addr='
terminal = b' terminal='
success = b' res=success\''
res = b' res='
exe1 = b'" exe="'
type_branches = {
'ADD_USER':
SequenceModelElement('adduser', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=adding user id='),
DecimalIntegerValueModelElement('newuserid'),
FixedDataModelElement('s5', exe),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
]),
'BPRM_FCAPS':
SequenceModelElement('bprmfcaps', [
FixedDataModelElement('s0', b' fver=0 fp='),
HexStringModelElement('fp'),
FixedDataModelElement('s1', b' fi='),
HexStringModelElement('fi'),
FixedDataModelElement('s2', b' fe='),
HexStringModelElement('fe'),
FixedDataModelElement('s3', b' old_pp='),
HexStringModelElement('pp-old'),
FixedDataModelElement('s4', b' old_pi='),
HexStringModelElement('pi-old'),
FixedDataModelElement('s5', b' old_pe='),
HexStringModelElement('pe-old'),
FixedDataModelElement('s6', b' new_pp='),
HexStringModelElement('pp-new'),
FixedDataModelElement('s7', b' new_pi='),
HexStringModelElement('pi-new'),
FixedDataModelElement('s8', b' new_pe='),
HexStringModelElement('pe-new')
]),
'CONFIG_CHANGE':
SequenceModelElement('conf-change', [
FixedDataModelElement('s0', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s1', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s2', b' op="add rule" key=(null) list='),
DecimalIntegerValueModelElement('list'),
FixedDataModelElement('s3', res),
DecimalIntegerValueModelElement('result')
]),
'CRED_ACQ':
SequenceModelElement('credacq', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:setcred acct="'),
DelimitedDataModelElement('username', b'"'),
FixedDataModelElement('s5', exe1),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
]),
'CRED_DISP':
SequenceModelElement('creddisp', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:setcred acct="'),
DelimitedDataModelElement('username', b'"'),
FixedDataModelElement('s5', exe1),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
]),
'CRED_REFR':
SequenceModelElement('creddisp', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement(
's4',
b' msg=\'op=PAM:setcred acct="root" exe="/usr/sbin/sshd" hostname='
),
IpAddressDataModelElement('clientname'),
FixedDataModelElement('s5', addr),
IpAddressDataModelElement('clientip'),
FixedDataModelElement('s6', b' terminal=ssh res=success\'')
]),
'CWD':
SequenceModelElement('cwd', [
FixedDataModelElement('s0', b' cwd='),
ExecArgumentDataModelElement('cwd')
]),
'EOE':
OptionalMatchModelElement('eoe', FixedDataModelElement('s0', b''))
}
# We need a type branch here also, but there is no additional
# data in EOE records after Ubuntu Trusty any more.
exec_arg_model = SequenceModelElement('execarg', [
FixedDataModelElement('s0', b' a'),
DecimalIntegerValueModelElement('argn'),
FixedDataModelElement('s1', b'='),
ExecArgumentDataModelElement('argval')
])
type_branches['EXECVE'] = SequenceModelElement('execve', [
FixedDataModelElement('s0', b' argc='),
DecimalIntegerValueModelElement('argc'),
RepeatedElementDataModelElement('arg', exec_arg_model)
])
type_branches['FD_PAIR'] = SequenceModelElement('fdpair', [
FixedDataModelElement('s0', b' fd0='),
DecimalIntegerValueModelElement('fd0'),
FixedDataModelElement('s1', b' fd1='),
DecimalIntegerValueModelElement('fd1')
])
# This message differs on Ubuntu 32/64 bit variants.
type_branches['LOGIN'] = SequenceModelElement('login', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedWordlistDataModelElement('s2', [b' old auid=', b' old-auid=']),
DecimalIntegerValueModelElement('auid-old'),
FixedWordlistDataModelElement('s3', [b' new auid=', auid]),
DecimalIntegerValueModelElement('auid-new'),
FixedWordlistDataModelElement('s4', [b' old ses=', b' old-ses=']),
DecimalIntegerValueModelElement('ses-old'),
FixedWordlistDataModelElement('s5', [b' new ses=', ses]),
DecimalIntegerValueModelElement('ses-new'),
FixedDataModelElement('s6', res),
DecimalIntegerValueModelElement('result')
])
inode_info_model_element = SequenceModelElement(
'inodeinfo',
[
FixedDataModelElement('s0', b' inode='),
DecimalIntegerValueModelElement('inode'),
FixedDataModelElement('s1', b' dev='),
# A special major/minor device element could be better here.
VariableByteDataModelElement('dev', b'0123456789abcdef:'),
FixedDataModelElement('s2', b' mode='),
# is octal
DecimalIntegerValueModelElement('mode'),
FixedDataModelElement('s3', b' ouid='),
DecimalIntegerValueModelElement('ouid'),
FixedDataModelElement('s4', b' ogid='),
DecimalIntegerValueModelElement('ogid'),
FixedDataModelElement('s5', b' rdev='),
# A special major/minor device element could be better here (see above).
VariableByteDataModelElement('rdev', b'0123456789abcdef:'),
FixedDataModelElement('s6', b' nametype=')
])
type_branches['NETFILTER_CFG'] = SequenceModelElement(
'conf-change', [
FixedDataModelElement('s0', b' table='),
FixedWordlistDataModelElement('table',
[b'filter', b'mangle', b'nat']),
FixedDataModelElement('s1', b' family='),
DecimalIntegerValueModelElement('family'),
FixedDataModelElement('s2', b' entries='),
DecimalIntegerValueModelElement('entries')
])
type_branches['OBJ_PID'] = SequenceModelElement('objpid', [
FixedDataModelElement('s0', b' opid='),
DecimalIntegerValueModelElement('opid'),
FixedDataModelElement('s1', b' oauid='),
DecimalIntegerValueModelElement(
'oauid',
value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL
),
FixedDataModelElement('s2', b' ouid='),
DecimalIntegerValueModelElement('ouid'),
FixedDataModelElement('s3', b' oses='),
DecimalIntegerValueModelElement(
'oses',
value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL
),
FixedDataModelElement('s4', b' ocomm='),
ExecArgumentDataModelElement('ocomm')
])
type_branches['PATH'] = SequenceModelElement('path', [
FixedDataModelElement('s0', b' item='),
DecimalIntegerValueModelElement('item'),
FixedDataModelElement('s1', b' name='),
ExecArgumentDataModelElement('name'),
FirstMatchModelElement('fsinfo', [
inode_info_model_element,
FixedDataModelElement('noinfo', b' nametype=')
]),
FixedWordlistDataModelElement(
'nametype',
[b'CREATE', b'DELETE', b'NORMAL', b'PARENT', b'UNKNOWN'])
])
type_branches['PROCTITLE'] = SequenceModelElement('proctitle', [
FixedDataModelElement('s1', b' proctitle='),
ExecArgumentDataModelElement('proctitle')
])
type_branches['SERVICE_START'] = SequenceModelElement(
'service', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'unit='),
DelimitedDataModelElement('unit', b' '),
FixedDataModelElement('s5', b' comm="systemd" exe="'),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', res), pam_status_word_list,
FixedDataModelElement('s10', b'\'')
])
type_branches['SERVICE_STOP'] = type_branches['SERVICE_START']
type_branches['SOCKADDR'] = SequenceModelElement('sockaddr', [
FixedDataModelElement('s0', b' saddr='),
HexStringModelElement('sockaddr', upper_case=True)
])
type_branches['SYSCALL'] = SequenceModelElement('syscall', [
FixedDataModelElement('s0', b' arch='),
HexStringModelElement('arch'),
FixedDataModelElement('s1', b' syscall='),
DecimalIntegerValueModelElement('syscall'),
OptionalMatchModelElement(
'personality',
SequenceModelElement('pseq', [
FixedDataModelElement('s0', b' per='),
DecimalIntegerValueModelElement('personality')
])),
OptionalMatchModelElement(
'result',
SequenceModelElement('rseq', [
FixedDataModelElement('s2', b' success='),
FixedWordlistDataModelElement('succes', [b'no', b'yes']),
FixedDataModelElement('s3', b' exit='),
DecimalIntegerValueModelElement(
'exit',
value_sign_type=DecimalIntegerValueModelElement.
SIGN_TYPE_OPTIONAL)
])),
FixedDataModelElement('s4', b' a0='),
HexStringModelElement('arg0'),
FixedDataModelElement('s5', b' a1='),
HexStringModelElement('arg1'),
FixedDataModelElement('s6', b' a2='),
HexStringModelElement('arg2'),
FixedDataModelElement('s7', b' a3='),
HexStringModelElement('arg3'),
FixedDataModelElement('s8', b' items='),
DecimalIntegerValueModelElement('items'),
FixedDataModelElement('s9', b' ppid='),
DecimalIntegerValueModelElement('ppid'),
FixedDataModelElement('s10', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s11', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s12', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s13', b' gid='),
DecimalIntegerValueModelElement('gid'),
FixedDataModelElement('s14', b' euid='),
DecimalIntegerValueModelElement('euid'),
FixedDataModelElement('s15', b' suid='),
DecimalIntegerValueModelElement('suid'),
FixedDataModelElement('s16', b' fsuid='),
DecimalIntegerValueModelElement('fsuid'),
FixedDataModelElement('s17', b' egid='),
DecimalIntegerValueModelElement('egid'),
FixedDataModelElement('s18', b' sgid='),
DecimalIntegerValueModelElement('sgid'),
FixedDataModelElement('s19', b' fsgid='),
DecimalIntegerValueModelElement('fsgid'),
FixedDataModelElement('s20', b' tty='),
DelimitedDataModelElement('tty', b' '),
FixedDataModelElement('s21', ses),
DecimalIntegerValueModelElement('sesid'),
FixedDataModelElement('s22', b' comm='),
ExecArgumentDataModelElement('command'),
FixedDataModelElement('s23', exe),
DelimitedDataModelElement('executable', b'"'),
FixedDataModelElement('s24', b'" key='),
AnyByteDataModelElement('key')
])
# The UNKNOWN type is used then audispd does not know the type of the event, usually because the kernel is more recent than
# audispd, thus emiting yet unknown event types.
# * type=1327: procitle: see https://www.redhat.com/archives/linux-audit/2014-February/msg00047.html
type_branches['UNKNOWN[1327]'] = SequenceModelElement(
'unknown-proctitle', [
FixedDataModelElement('s0', b' proctitle='),
ExecArgumentDataModelElement('proctitle')
])
type_branches['USER_ACCT'] = SequenceModelElement('useracct', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:accounting acct="'),
DelimitedDataModelElement('username', b'"'),
FixedDataModelElement('s5', exe1),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
])
type_branches['USER_AUTH'] = SequenceModelElement('userauth', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:authentication acct="'),
DelimitedDataModelElement('username', b'"'),
FixedDataModelElement('s5', exe1),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
])
type_branches['USER_START'] = SequenceModelElement('userstart', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:session_open acct="'),
DelimitedDataModelElement('username', b'"'),
FixedDataModelElement('s5', exe1),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
])
type_branches['USER_END'] = SequenceModelElement('userend', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:session_close acct="'),
DelimitedDataModelElement('username', b'"'),
FixedDataModelElement('s5', exe1),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', success)
])
type_branches['USER_ERR'] = SequenceModelElement('usererr', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=PAM:bad_ident acct="?" exe="'),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s5', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s6', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s7', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s8', b' res=failed\'')
])
type_branches['USER_LOGIN'] = SequenceModelElement('userlogin', [
FixedDataModelElement('s0', pid),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('s1', uid),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('s2', auid),
DecimalIntegerValueModelElement('auid'),
FixedDataModelElement('s3', ses),
DecimalIntegerValueModelElement('ses'),
FixedDataModelElement('s4', b' msg=\'op=login '),
FirstMatchModelElement('msgtype', [
FixedDataModelElement('loginok', b'id=0'),
SequenceModelElement('loginfail', [
FixedDataModelElement('s0', b'acct='),
ExecArgumentDataModelElement('account')
])
]),
FixedDataModelElement('s5', exe),
DelimitedDataModelElement('exec', b'"'),
FixedDataModelElement('s6', hostname),
DelimitedDataModelElement('clientname', b' '),
FixedDataModelElement('s7', addr),
DelimitedDataModelElement('clientip', b' '),
FixedDataModelElement('s8', terminal),
WhiteSpaceLimitedDataModelElement('terminal'),
FixedDataModelElement('s9', res), pam_status_word_list,
FixedDataModelElement('s10', b'\'')
])
model = SequenceModelElement('audispd', [
FixedDataModelElement('sname', b'audispd: '),
FirstMatchModelElement('msg', [
ElementValueBranchModelElement(
'record',
SequenceModelElement('preamble', [
FixedDataModelElement('s0', b'type='),
WhiteSpaceLimitedDataModelElement('type'),
FixedDataModelElement('s1', b' msg=audit('),
DecimalIntegerValueModelElement('time'),
FixedDataModelElement('s0', b'.'),
DecimalIntegerValueModelElement('ms'),
FixedDataModelElement('s1', b':'),
DecimalIntegerValueModelElement('seq'),
FixedDataModelElement('s2', b'):')
]),
'type',
type_branches,
default_branch=None),
FixedDataModelElement('queue-full',
b'queue is full - dropping event')
])
])
return model
def get_model():
"""Return a model to parse Syslogs from the AIT-LDS."""
alphabet = b'!"#$%&\'()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz{|}~=[]'
user_info = SequenceModelElement('user_info', [
FixedDataModelElement('user_str', b'user=<'),
OptionalMatchModelElement('user',
DelimitedDataModelElement('user', b'>')),
FixedDataModelElement('method_str', b'>'),
OptionalMatchModelElement(
'method',
SequenceModelElement('method', [
FixedDataModelElement('method_str', b', method='),
DelimitedDataModelElement('method', b','),
])),
FixedDataModelElement('rip_str', b', rip='),
IpAddressDataModelElement('rip'),
FixedDataModelElement('lip_str', b', lip='),
IpAddressDataModelElement('lip'),
OptionalMatchModelElement(
'mpid',
SequenceModelElement('mpid', [
FixedDataModelElement('mpid_str', b', mpid='),
DecimalIntegerValueModelElement('mpid'),
])),
OptionalMatchModelElement(
'secured', FixedDataModelElement('secured_str', b', secured')),
FixedDataModelElement('session_str', b', session=<'),
DelimitedDataModelElement('session', b'>'),
FixedDataModelElement('bracket_str', b'>'),
])
model = SequenceModelElement(
'model',
[
DateTimeModelElement('time', b'%b %d %H:%M:%S', start_year=2020),
FixedDataModelElement('sp1', b' '),
DelimitedDataModelElement('host', b' '),
FirstMatchModelElement(
'service',
[
SequenceModelElement('dovecot', [
FixedDataModelElement('dovecot_str', b' dovecot: '),
FirstMatchModelElement('imap', [
SequenceModelElement('imap', [
FixedDataModelElement('imap_str', b'imap('),
DelimitedDataModelElement('user', b')'),
FixedDataModelElement('bracket_str', b'): '),
FirstMatchModelElement('message', [
SequenceModelElement(
'logout', [
FixedDataModelElement(
'logout_str',
b'Logged out in='),
DecimalIntegerValueModelElement(
'in'),
FixedDataModelElement(
'out_str', b' out='),
DecimalIntegerValueModelElement(
'out')
]),
SequenceModelElement(
'err_mail', [
FixedDataModelElement(
'mail_str',
b'Error: Failed to autocreate mailbox INBOX: Internal error occurred. '
b'Refer to server log for more information. ['
),
DelimitedDataModelElement(
'err_time', b']'),
FixedDataModelElement(
'brack', b']')
]),
SequenceModelElement(
'err_open', [
FixedDataModelElement(
'err_str', b'Error: '),
DelimitedDataModelElement(
'function_name', b'('),
FixedDataModelElement(
'brack_str1', b'('),
DelimitedDataModelElement(
'arg', b')'),
FixedDataModelElement(
'failed_str',
b') failed: Permission denied (euid='
),
DecimalIntegerValueModelElement(
'euid'),
FixedDataModelElement(
'brack_str2', b'('),
DelimitedDataModelElement(
'euid_user', b')'),
FixedDataModelElement(
'egid_str', b') egid='),
DecimalIntegerValueModelElement(
'egid'),
FixedDataModelElement(
'brack_str3', b'('),
DelimitedDataModelElement(
'egid_user', b')'),
FixedDataModelElement(
'perm_str',
b') missing +w perm: '),
DelimitedDataModelElement(
'mail_path', b','),
FixedDataModelElement(
'group_str',
b', we\'re not in group '),
DecimalIntegerValueModelElement(
'group_id'),
FixedDataModelElement(
'brack_str4', b'('),
DelimitedDataModelElement(
'group_name', b')'),
FixedDataModelElement(
'owned_str',
b'), dir owned by '),
DelimitedDataModelElement(
'owner', b' '),
FixedDataModelElement(
'mode_str', b' mode='),
DelimitedDataModelElement(
'mode', b')'),
FixedDataModelElement(
'brack_str5', b')'),
OptionalMatchModelElement(
'set',
SequenceModelElement(
'set', [
FixedDataModelElement(
'set_str',
b' (set'),
DelimitedDataModelElement(
'param', b'='),
FixedDataModelElement(
'equal_str', b'='),
DelimitedDataModelElement(
'val', b')'),
FixedDataModelElement(
'brack_str6', b')')
]))
]),
SequenceModelElement(
'err_mail', [
FixedDataModelElement(
'mail_str',
b'Failed to autocreate mailbox INBOX: Internal error occurred. '
b'Refer to server log for more information. ['
),
DelimitedDataModelElement(
'err_time', b']'),
FixedDataModelElement(
'brack', b']')
]),
]),
]),
SequenceModelElement('imap_login', [
FixedDataModelElement('imap_login_str',
b'imap-login: '******'login', [
SequenceModelElement(
'disconnected_str', [
FixedDataModelElement(
'disconnected_str',
b'Disconnected '),
FirstMatchModelElement(
'auth', [
SequenceModelElement(
'auth_failed', [
FixedDataModelElement(
'auth_failed_str',
b'(auth failed, '
),
DecimalIntegerValueModelElement(
'attempts'),
FixedDataModelElement(
'attempts_str',
b' attempts in '
),
]),
FixedDataModelElement(
'no_auth_str',
b'(no auth attempts in '
),
FixedDataModelElement(
'no_auth_str',
b'(disconnected before auth was ready, waited '
),
]),
DecimalIntegerValueModelElement(
'duration'),
FixedDataModelElement(
'secs_str', b' secs): '),
user_info
]),
SequenceModelElement(
'login', [
FixedDataModelElement(
'login_str', b'Login: '******'anvil', [
FixedDataModelElement(
'anvil_str', b'Error: anvil:'),
AnyByteDataModelElement(
'anvil_msg')
]),
SequenceModelElement(
'auth_responding', [
FixedDataModelElement(
'auth_responding_str',
b'Warning: Auth process not responding, '
b'delayed sending initial response (greeting): '
), user_info
]),
]),
]),
SequenceModelElement('auth', [
FixedDataModelElement('auth_worker_str',
b'auth: '),
AnyByteDataModelElement('message')
]),
SequenceModelElement('auth_worker', [
FixedDataModelElement('auth_worker_str',
b'auth-worker('),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('brack', b'):'),
AnyByteDataModelElement('message')
]),
SequenceModelElement('master', [
FixedDataModelElement('master_str',
b'master: '),
AnyByteDataModelElement('message')
])
]),
]),
SequenceModelElement('horde', [
FixedDataModelElement('horde_str', b' HORDE: '),
FirstMatchModelElement('horde', [
SequenceModelElement('imp', [
FixedDataModelElement('succ_str', b'[imp] '),
FirstMatchModelElement('imp', [
SequenceModelElement(
'login', [
FixedDataModelElement(
'succ_str',
b'Login success for '),
DelimitedDataModelElement(
'user', b' '),
FixedDataModelElement(
'brack_str1', b' ('),
IpAddressDataModelElement('ip'),
FixedDataModelElement(
'to_str', b') to {'),
DelimitedDataModelElement(
'imap_addr', b'}'),
FixedDataModelElement(
'brack_str2', b'}'),
]),
SequenceModelElement(
'message_sent', [
FixedDataModelElement(
'message_sent_str',
b'Message sent to '),
VariableByteDataModelElement(
'user',
b'.0123456789@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz'
),
OptionalMatchModelElement(
'mail',
SequenceModelElement(
'mail', [
FixedDataModelElement(
'brack_mail1',
b' <'),
DelimitedDataModelElement(
'mail', b'>'),
FixedDataModelElement(
'brack_mail2',
b'>')
])),
RepeatedElementDataModelElement(
'more_recepients_rep',
SequenceModelElement(
'more_recepients', [
FixedDataModelElement(
'comma_str',
b', '),
VariableByteDataModelElement(
'more_recepients_mail',
b'.0123456789@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz'
),
OptionalMatchModelElement(
'more_recepients_mail',
SequenceModelElement(
'more_recepients',
[
FixedDataModelElement(
'brack_more_recepients1',
b' <'),
DelimitedDataModelElement(
'more_recepients',
b'>'),
FixedDataModelElement(
'brack_more_recepients2',
b'>')
])),
])),
FixedDataModelElement(
'from_str', b' from '),
DelimitedDataModelElement(
'user', b' '),
FixedDataModelElement(
'brack_str1', b' ('),
IpAddressDataModelElement('ip'),
FixedDataModelElement(
'brack_str2', b')'),
]),
SequenceModelElement(
'login_failed', [
FixedDataModelElement(
'succ_str',
b'FAILED LOGIN for '),
DelimitedDataModelElement(
'user', b' '),
FixedDataModelElement(
'brack_str1', b' ('),
IpAddressDataModelElement('ip'),
FixedDataModelElement(
'to_str', b') to {'),
DelimitedDataModelElement(
'imap_addr', b'}'),
FixedDataModelElement(
'brack_str2', b'}'),
]),
SequenceModelElement(
'status', [
FixedDataModelElement(
'status_str',
b'[status] Could not open mailbox "INBOX".'
),
]),
SequenceModelElement(
'sync_token', [
FixedDataModelElement(
'sync_token_str',
b'[getSyncToken] IMAP error reported by server.'
),
]),
SequenceModelElement(
'auth_failed', [
FixedDataModelElement(
'auth_failed_str',
b'[login] Authentication failed.'
),
]),
]),
]),
SequenceModelElement('horde', [
FixedDataModelElement('succ_str', b'[horde] '),
FirstMatchModelElement('horde', [
SequenceModelElement(
'success', [
FixedDataModelElement(
'success_str',
b'Login success for '),
DelimitedDataModelElement(
'user', b' '),
FixedDataModelElement(
'brack_str1', b' to horde ('),
IpAddressDataModelElement('ip'),
FixedDataModelElement(
'brack_str2', b')'),
]),
SequenceModelElement(
'success', [
FixedDataModelElement(
'success_str', b'User '),
DelimitedDataModelElement(
'user', b' '),
FixedDataModelElement(
'brack_str1',
b' logged out of Horde ('),
IpAddressDataModelElement('ip'),
FixedDataModelElement(
'brack_str2', b')'),
]),
SequenceModelElement(
'login_failed', [
FixedDataModelElement(
'failed_str',
b'FAILED LOGIN for '),
DelimitedDataModelElement(
'user', b' '),
FixedDataModelElement(
'to_horde_str',
b' to horde ('),
IpAddressDataModelElement('ip'),
FixedDataModelElement(
'brack_str', b')'),
]),
])
]),
SequenceModelElement('function', [
FixedWordlistDataModelElement(
'horde_function',
[b'[nag]', b'[turba]', b'[horde]']),
FixedDataModelElement('nag_str',
b' PHP ERROR: '),
FirstMatchModelElement('php_error', [
SequenceModelElement(
'declaration', [
FixedDataModelElement(
'declaration_str',
b'Declaration of '),
DelimitedDataModelElement(
'function_name1', b'('),
FixedDataModelElement(
'brack_str1', b'('),
OptionalMatchModelElement(
'arg1',
DelimitedDataModelElement(
'arg1', b')')),
FixedDataModelElement(
'failed_str',
b') should be compatible with '
),
DelimitedDataModelElement(
'function_name2', b'('),
FixedDataModelElement(
'brack_str2', b'('),
OptionalMatchModelElement(
'arg2',
DelimitedDataModelElement(
'arg2', b')')),
FixedDataModelElement(
'brack_str3', b')'),
]),
FixedDataModelElement(
'file_str',
b'finfo_file(): Empty filename or path'
),
FixedDataModelElement(
'header_str',
b'Cannot modify header information - headers already sent'
)
])
]),
SequenceModelElement('guest', [
FixedDataModelElement(
'guest_str',
b'Guest user is not authorized for Horde (Host: '
),
IpAddressDataModelElement('ip'),
FixedDataModelElement('brack_str', b').')
]),
SequenceModelElement('php_error', [
FixedDataModelElement('php_error_str',
b'PHP ERROR: '),
DelimitedDataModelElement('msg', b' ['),
]),
SequenceModelElement('free_msg', [
DelimitedDataModelElement('msg', b' ['),
])
]),
FixedDataModelElement('to_str', b' [pid '),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('line_str', b' on line '),
DecimalIntegerValueModelElement('line'),
FixedDataModelElement('of_str', b' of "'),
DelimitedDataModelElement('path', b'"'),
FixedDataModelElement('brack_str', b'"]')
]),
SequenceModelElement(
'cron',
[
FixedDataModelElement('cron_str', b' CRON['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('brack_str1', b']: '),
FirstMatchModelElement(
'cron',
[
SequenceModelElement(
'cmd', [
FixedDataModelElement(
'brack_str', b'('),
DelimitedDataModelElement(
'user', b')'),
FixedDataModelElement(
'cmd_str', b') CMD '),
AnyByteDataModelElement('cmd_msg')
]),
SequenceModelElement(
'session',
[ # This only occurs in auth.log
DelimitedDataModelElement(
'pam', b'('),
FixedDataModelElement(
'brack_str', b'('),
DelimitedDataModelElement(
'name', b')'),
FixedDataModelElement(
'session_str', b'): session '),
FixedWordlistDataModelElement(
'status',
[b'opened', b'closed']),
FixedDataModelElement(
'user_str', b' for user '),
VariableByteDataModelElement(
'user', alphabet),
OptionalMatchModelElement(
'uid',
SequenceModelElement(
'uid', [
FixedDataModelElement(
'uid_str',
b' by (uid='),
DecimalIntegerValueModelElement(
'uid'),
FixedDataModelElement(
'brack_str', b')')
]))
])
])
]),
SequenceModelElement(
'auth',
[ # This only occurs in auth.log
FixedDataModelElement('auth_str', b' auth: '),
DelimitedDataModelElement('pam', b'('),
FixedDataModelElement('brack_str', b'('),
DelimitedDataModelElement('name', b')'),
FixedDataModelElement(
'session_str',
b'): authentication failure; logname='),
OptionalMatchModelElement(
'logname',
DelimitedDataModelElement('logname', b' ')),
FixedDataModelElement('uid_str', b' uid='),
DecimalIntegerValueModelElement('uid'),
FixedDataModelElement('euid_str', b' euid='),
DecimalIntegerValueModelElement('euid'),
FixedDataModelElement('tty_str', b' tty='),
DelimitedDataModelElement('tty', b' '),
FixedDataModelElement('ruser_str', b' ruser='******'ruser', b' '),
FixedDataModelElement('rhost_str', b' rhost='),
IpAddressDataModelElement('rhost'),
OptionalMatchModelElement(
'user',
SequenceModelElement('user', [
FixedDataModelElement(
'user_str', b' user='******'user', alphabet)
]))
]),
SequenceModelElement('systemd', [
FixedDataModelElement('systemd_str', b' systemd['),
DecimalIntegerValueModelElement('pid'),
FixedDataModelElement('brack_str1', b']: '),
FirstMatchModelElement('systemd', [
FixedDataModelElement(
'php_starting_str',
b'Starting Clean php session files...'),
FixedDataModelElement(
'php_started_str',
b'Started Clean php session files.'),
FixedDataModelElement(
'php_starting_str',
b'Starting Cleanup of Temporary Directories...'
),
FixedDataModelElement(
'php_started_str',
b'Started Cleanup of Temporary Directories.'),
FixedDataModelElement(
'php_started_str',
b'Starting Daily apt upgrade and clean activities...'
),
FixedDataModelElement(
'php_started_str',
b'Started Daily apt upgrade and clean activities.'
),
FixedDataModelElement(
'php_started_str',
b'Starting Daily apt download activities...'),
FixedDataModelElement(
'php_started_str',
b'Started Daily apt download activities.'),
FixedDataModelElement(
'php_started_str',
b'Starting Security Auditing Service...'),
FixedDataModelElement(
'php_started_str',
b'Started Security Auditing Service.'),
FixedDataModelElement(
'php_started_str',
b'Stopping Security Auditing Service...'),
FixedDataModelElement(
'php_started_str',
b'Stopped Security Auditing Service.'),
FixedDataModelElement(
'php_started_str',
b'Reloading The Apache HTTP Server.'),
FixedDataModelElement(
'php_started_str',
b'Reloaded The Apache HTTP Server.'),
FixedDataModelElement(
'php_started_str',
b'Mounting Arbitrary Executable File Formats File System...'
),
FixedDataModelElement(
'php_started_str',
b'Mounted Arbitrary Executable File Formats File System.'
),
SequenceModelElement('apt', [
FixedDataModelElement('apt_str', b'apt'),
AnyByteDataModelElement('apt_msg')
]),
SequenceModelElement('service', [
DelimitedDataModelElement('service', b':'),
FixedDataModelElement('col_str', b': '),
AnyByteDataModelElement('_msg')
])
]),
]),
SequenceModelElement('kernel', [
FixedDataModelElement('kernel_str', b' kernel'),
OptionalMatchModelElement(
'id',
SequenceModelElement('id', [
FixedDataModelElement('brack_str', b'['),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('brack_str2', b']')
])),
FixedDataModelElement('col_str', b': '),
AnyByteDataModelElement('kernel_msg')
]),
SequenceModelElement('augenrules', [
FixedDataModelElement('augenrules_str',
b' augenrules['),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('brack_str1', b']: '),
AnyByteDataModelElement('augenrules_msg')
]),
SequenceModelElement('auditd', [
FixedDataModelElement('auditd_str', b' auditd['),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('brack_str1', b']: '),
AnyByteDataModelElement('auditd_msg')
]),
SequenceModelElement('auditd2', [
FixedDataModelElement('auditd2_str', b' auditd: '),
AnyByteDataModelElement('auditd_msg')
]),
SequenceModelElement('audispd', [
FixedDataModelElement('audispd_str', b' audispd: '),
AnyByteDataModelElement('audispd_msg')
]),
SequenceModelElement('liblogging', [
FixedDataModelElement('liblogging_str',
b' liblogging-stdlog: '),
AnyByteDataModelElement('liblogging_msg')
]),
SequenceModelElement('freshclam', [
FixedDataModelElement('freshclam_str', b' freshclam['),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('brack_str1', b']: '),
AnyByteDataModelElement('freshclam_msg')
]),
SequenceModelElement('dhclient', [
FixedDataModelElement('dhclient_str', b' dhclient['),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('brack_str1', b']: '),
FirstMatchModelElement('dhclient', [
SequenceModelElement('dhcprequest', [
FixedDataModelElement('dhcprequest_str',
b'DHCPREQUEST of '),
IpAddressDataModelElement('src_ip'),
FixedDataModelElement('on_str', b' on '),
DelimitedDataModelElement(
'network_interface', b' '),
FixedDataModelElement('to_str', b' to '),
IpAddressDataModelElement('dst_ip'),
FixedDataModelElement('port_str', b' port '),
DecimalIntegerValueModelElement('port')
]),
SequenceModelElement('dhcpack', [
FixedDataModelElement('dhcpack_str',
b'DHCPACK of '),
IpAddressDataModelElement('dst_ip'),
FixedDataModelElement('on_str', b' from '),
IpAddressDataModelElement('src_ip')
]),
SequenceModelElement('bound', [
FixedDataModelElement('bound_str',
b'bound to '),
IpAddressDataModelElement('ip'),
FixedDataModelElement('renewal_str',
b' -- renewal in '),
DecimalIntegerValueModelElement('seconds'),
FixedDataModelElement('seconds_str',
b' seconds.')
]),
]),
]),
])
])
return model
def get_model():
"""Return a model to parse Exim logs from the AIT-LDS."""
alphabet = b"!'#$%&\"()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz{|}~=[]"
model = SequenceModelElement("model", [
DateTimeModelElement("time", b"%Y-%m-%d %H:%M:%S"),
FixedDataModelElement("sp", b" "),
FirstMatchModelElement("fm", [
SequenceModelElement("start", [
FixedDataModelElement("start", b"Start queue run: pid="),
DecimalIntegerValueModelElement("pid"),
]),
SequenceModelElement("end", [
FixedDataModelElement("end", b"End queue run: pid="),
DecimalIntegerValueModelElement("pid"),
]),
SequenceModelElement("no_host_found", [
FixedDataModelElement("no_host_found_str", b"no host name found for IP address "),
IpAddressDataModelElement("ip"),
]),
SequenceModelElement("vrfy_failed", [
FixedDataModelElement("vrfy_failed_str", b"VRFY failed for "),
DelimitedDataModelElement("mail", b" "),
FixedDataModelElement("h_str", b" H="),
DelimitedDataModelElement("h", b" "),
FixedDataModelElement("sp1", b" ["),
IpAddressDataModelElement("ip"),
FixedDataModelElement("sp2", b"]")
]),
SequenceModelElement("mail", [
DelimitedDataModelElement("id", b" "),
FirstMatchModelElement("dir", [
SequenceModelElement("dir_in", [
FixedDataModelElement("in", b" <= "),
FirstMatchModelElement("fm", [
SequenceModelElement("seq1", [
FixedDataModelElement("brack", b"<> "),
FirstMatchModelElement("fm", [
SequenceModelElement("r", [
FixedDataModelElement("r_str", b"R="),
DelimitedDataModelElement("r", b" "),
FixedDataModelElement("u_str", b" U="),
DelimitedDataModelElement("u", b" "),
]),
SequenceModelElement("h", [
FixedDataModelElement("h_str", b"H="),
DelimitedDataModelElement("h", b" "),
FixedDataModelElement("sp1", b" ["),
IpAddressDataModelElement("ip"),
FixedDataModelElement("sp1", b"]"),
])
]),
FixedDataModelElement("sp2", b" P="),
DelimitedDataModelElement("p", b" "),
FixedDataModelElement("sp2", b" S="),
DecimalIntegerValueModelElement("s"),
]),
SequenceModelElement("seq2", [
DelimitedDataModelElement("mail", b" "),
FixedDataModelElement("user_str", b" U="),
DelimitedDataModelElement("user", b" "),
FixedDataModelElement("p_str", b" P="),
DelimitedDataModelElement("p", b" "),
FixedDataModelElement("s_str", b" S="),
DecimalIntegerValueModelElement("s"),
OptionalMatchModelElement(
"id", SequenceModelElement("id", [
FixedDataModelElement("id_str", b" id="),
AnyByteDataModelElement("id")
])
)
])
])
]),
SequenceModelElement("dir_out", [
FixedDataModelElement("in", b" => "),
DelimitedDataModelElement("name", b" "),
FixedDataModelElement("sp1", b" "),
OptionalMatchModelElement(
"mail_opt", SequenceModelElement("mail", [
FixedDataModelElement("brack1", b"("),
DelimitedDataModelElement("brack_mail", b")"),
FixedDataModelElement("brack2", b") "),
])),
FixedDataModelElement("sp2", b"<"),
DelimitedDataModelElement("mail", b">"),
FixedDataModelElement("r_str", b"> R="),
DelimitedDataModelElement("r", b" "),
FixedDataModelElement("t_str", b" T="),
VariableByteDataModelElement("t", alphabet),
]),
SequenceModelElement("aster", [
FixedDataModelElement("aster", b" ** "),
DelimitedDataModelElement("command", b" "),
FixedDataModelElement("headers_str", b' Too many "Received" headers - suspected mail loop')]),
FixedDataModelElement("completed", b" Completed"),
FixedDataModelElement("frozen", b" Message is frozen"),
FixedDataModelElement("frozen", b" Frozen (delivery error message)")
])
])])])
return model
def get_model():
"""Return a model to parse Audit logs from the AIT-LDS."""
alphabet = b'!"#$%&\'()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz{|}~=[]'
seq = [
FixedDataModelElement('audit_str', b'audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('pid_str', b'): pid='),
VariableByteDataModelElement('pid', alphabet),
FixedDataModelElement('uid_str', b' uid='),
VariableByteDataModelElement('uid', alphabet),
FixedDataModelElement('auid_str', b' auid='),
VariableByteDataModelElement('auid', alphabet),
FixedDataModelElement('ses_str', b' ses='),
VariableByteDataModelElement('ses', alphabet),
FixedDataModelElement('msg2_str', b' msg='),
VariableByteDataModelElement('msg2', alphabet),
FirstMatchModelElement('fm', [
SequenceModelElement('acct', [
FixedDataModelElement('acct_str', b' acct='),
VariableByteDataModelElement('acct', alphabet)]),
SequenceModelElement('comm', [
FixedDataModelElement('comm_str', b' comm='),
VariableByteDataModelElement('comm', alphabet)]),
SequenceModelElement('cmd', [
FixedDataModelElement('cmd_str', b' cmd='),
VariableByteDataModelElement('cmd', alphabet)])]),
OptionalMatchModelElement(
'opt', SequenceModelElement('opt_seq', [
FixedDataModelElement('exe_str', b' exe='),
VariableByteDataModelElement('exe', alphabet),
FixedDataModelElement('hostname_str', b' hostname='),
VariableByteDataModelElement('hostname', alphabet),
FixedDataModelElement('addr_str', b' addr='),
VariableByteDataModelElement('addr', alphabet)])),
FixedDataModelElement('terminal_str', b' terminal='),
VariableByteDataModelElement('terminal', alphabet),
FixedDataModelElement('res_str', b' res='),
VariableByteDataModelElement('res', alphabet)]
model = SequenceModelElement('model', [
FixedDataModelElement('type_str', b'type='),
FirstMatchModelElement('type', [
SequenceModelElement('execve', [
FixedDataModelElement('execve_str', b'EXECVE msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('argc_str', b'): argc='),
DecimalIntegerValueModelElement('argc', value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement('a0_str', b' a0='),
VariableByteDataModelElement('a0', alphabet),
OptionalMatchModelElement(
'opt1', SequenceModelElement('seq1', [
FixedDataModelElement('a1_str', b' a1='),
VariableByteDataModelElement('a1', alphabet),
OptionalMatchModelElement(
'opt2', SequenceModelElement('seq2', [
FixedDataModelElement('a2_str', b' a2='),
VariableByteDataModelElement('a2', alphabet),
OptionalMatchModelElement(
'opt3', SequenceModelElement('seq3', [
FixedDataModelElement('a3_str', b' a3='),
VariableByteDataModelElement('a3', alphabet),
OptionalMatchModelElement(
'opt4', SequenceModelElement('seq4', [
FixedDataModelElement('a4_str', b' a4='),
VariableByteDataModelElement('a4', alphabet)
])
),
OptionalMatchModelElement(
'opt5', SequenceModelElement('seq5', [
FixedDataModelElement('a5_str', b' a5='),
VariableByteDataModelElement('a5', alphabet)
])
),
OptionalMatchModelElement(
'opt6', SequenceModelElement('seq6', [
FixedDataModelElement('a6_str', b' a6='),
VariableByteDataModelElement('a6', alphabet)
])
),
OptionalMatchModelElement(
'opt7', SequenceModelElement('seq7', [
FixedDataModelElement('a7_str', b' a7='),
VariableByteDataModelElement('a7', alphabet)
])
),
OptionalMatchModelElement(
'opt8', SequenceModelElement('seq8', [
FixedDataModelElement('a8_str', b' a8='),
VariableByteDataModelElement('a8', alphabet)
])
),
OptionalMatchModelElement(
'opt9', SequenceModelElement('seq9', [
FixedDataModelElement('a9_str', b' a9='),
VariableByteDataModelElement('a9', alphabet)
])
),
OptionalMatchModelElement(
'opt10', SequenceModelElement('seq10', [
FixedDataModelElement('a10_str', b' a10='),
VariableByteDataModelElement('a10', alphabet)
])
),
OptionalMatchModelElement(
'opt11', SequenceModelElement('seq11', [
FixedDataModelElement('a11_str', b' a11='),
VariableByteDataModelElement('a11', alphabet)
])
),
OptionalMatchModelElement(
'opt12', SequenceModelElement('seq12', [
FixedDataModelElement('a12_str', b' a12='),
VariableByteDataModelElement('a12', alphabet)
])
),
OptionalMatchModelElement(
'opt13', SequenceModelElement('seq13', [
FixedDataModelElement('a13_str', b' a13='),
VariableByteDataModelElement('a13', alphabet)
])
),
OptionalMatchModelElement(
'opt14', SequenceModelElement('seq14', [
FixedDataModelElement('a14_str', b' a14='),
VariableByteDataModelElement('a14', alphabet)
])
)]))]))]))]),
SequenceModelElement('proctitle', [
FixedDataModelElement('type_str', b'PROCTITLE msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('proctitle_str', b'): proctitle='),
VariableByteDataModelElement('proctitle', alphabet)]),
SequenceModelElement('syscall', [
FixedDataModelElement('msg_str', b'SYSCALL msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('arch_str', b'): arch='),
VariableByteDataModelElement('arch', alphabet),
FixedDataModelElement('syscall_str', b' syscall='),
DecimalIntegerValueModelElement('syscall', value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement('success_str', b' success='),
VariableByteDataModelElement('success', alphabet),
FixedDataModelElement('exit_str', b' exit='),
VariableByteDataModelElement('exit', alphabet),
FixedDataModelElement('a0_str', b' a0='),
VariableByteDataModelElement('a0', alphabet),
FixedDataModelElement('a1_str', b' a1='),
VariableByteDataModelElement('a1', alphabet),
FixedDataModelElement('a2_str', b' a2='),
VariableByteDataModelElement('a2', alphabet),
FixedDataModelElement('a3_str', b' a3='),
VariableByteDataModelElement('a3', alphabet),
FixedDataModelElement('items_str', b' items='),
VariableByteDataModelElement('items', alphabet),
FixedDataModelElement('ppid_str', b' ppid='),
VariableByteDataModelElement('ppid', alphabet),
FixedDataModelElement('pid_str', b' pid='),
VariableByteDataModelElement('pid', alphabet),
FixedDataModelElement('auid_str', b' auid='),
VariableByteDataModelElement('auid', alphabet),
FixedDataModelElement('uid_str', b' uid='),
VariableByteDataModelElement('uid', alphabet),
FixedDataModelElement('gid_str', b' gid='),
VariableByteDataModelElement('gid', alphabet),
FixedDataModelElement('euid_str', b' euid='),
VariableByteDataModelElement('euid', alphabet),
FixedDataModelElement('suid_str', b' suid='),
VariableByteDataModelElement('suid', alphabet),
FixedDataModelElement('fsuid_str', b' fsuid='),
VariableByteDataModelElement('fsuid', alphabet),
FixedDataModelElement('egid_str', b' egid='),
VariableByteDataModelElement('egid', alphabet),
FixedDataModelElement('sgid_str', b' sgid='),
VariableByteDataModelElement('sgid', alphabet),
FixedDataModelElement('fsgid_str', b' fsgid='),
VariableByteDataModelElement('fsgid', alphabet),
FixedDataModelElement('tty_str', b' tty='),
VariableByteDataModelElement('tty', alphabet),
FixedDataModelElement('ses_str', b' ses='),
VariableByteDataModelElement('ses', alphabet),
FixedDataModelElement('comm_str', b' comm='),
VariableByteDataModelElement('comm', alphabet),
FixedDataModelElement('exe_str', b' exe='),
VariableByteDataModelElement('exe', alphabet),
FixedDataModelElement('key_str', b' key='),
VariableByteDataModelElement('key', alphabet)]),
SequenceModelElement('path', [
FixedDataModelElement('msg_str', b'PATH msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('item_str', b'): item='),
DecimalIntegerValueModelElement('item', value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement('name_str', b' name='),
VariableByteDataModelElement('name', alphabet),
FirstMatchModelElement('path', [
SequenceModelElement('nametype', [
FixedDataModelElement('nametype_str', b' nametype='),
VariableByteDataModelElement('nametype', alphabet)]),
SequenceModelElement('inode', [
FixedDataModelElement('inode_str', b' inode='),
DecimalIntegerValueModelElement('inode', value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement('dev_str', b' dev='),
VariableByteDataModelElement('dev', alphabet),
FixedDataModelElement('mode_str', b' mode='),
VariableByteDataModelElement('mode', alphabet),
FixedDataModelElement('ouid_str', b' ouid='),
VariableByteDataModelElement('ouid', alphabet),
FixedDataModelElement('ogid_str', b' ogid='),
VariableByteDataModelElement('ogid', alphabet),
FixedDataModelElement('rdev_str', b' rdev='),
VariableByteDataModelElement('rdev', alphabet),
FixedDataModelElement('nametype_str', b' nametype='),
VariableByteDataModelElement('nametype', alphabet)])])]),
SequenceModelElement('login', [
FixedDataModelElement('msg1_str', b'LOGIN msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('pid_str', b'): pid='),
VariableByteDataModelElement('pid', alphabet),
FixedDataModelElement('uid_str', b' uid='),
VariableByteDataModelElement('uid', alphabet),
FixedDataModelElement('old_auid_str', b' old-auid='),
VariableByteDataModelElement('old_auid', alphabet),
FixedDataModelElement('auid_str', b' auid='),
VariableByteDataModelElement('auid', alphabet),
OptionalMatchModelElement(
'tty', SequenceModelElement('tty', [
FixedDataModelElement('tty_str', b' tty='),
VariableByteDataModelElement('tty', alphabet)])),
FixedDataModelElement('old_ses_str', b' old-ses='),
VariableByteDataModelElement('old_ses', alphabet),
FixedDataModelElement('ses_str', b' ses='),
VariableByteDataModelElement('ses', alphabet),
FixedDataModelElement('res_str', b' res='),
VariableByteDataModelElement('res', alphabet)]),
SequenceModelElement('sockaddr', [
FixedDataModelElement('msg_str', b'SOCKADDR msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('saddr_str', b'): saddr='),
VariableByteDataModelElement('saddr', alphabet)]),
SequenceModelElement('unknown', [
FixedDataModelElement('unknwon_str', b'UNKNOWN['),
DecimalIntegerValueModelElement('unknown_id', value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement('msg_str', b'] msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('proctitle_str', b'): proctitle='),
VariableByteDataModelElement('proctitle', alphabet)]),
SequenceModelElement('cred_refr', [
FixedDataModelElement('msg1_str', b'CRED_REFR msg=')] + seq),
SequenceModelElement('user_start', [
FixedDataModelElement('msg1_str', b'USER_START msg=')] + seq),
SequenceModelElement('user_acct', [
FixedDataModelElement('msg1_str', b'USER_ACCT msg=')] + seq),
SequenceModelElement('user_auth', [
FixedDataModelElement('msg1_str', b'USER_AUTH msg=')] + seq),
SequenceModelElement('cred_disp', [
FixedDataModelElement('msg1_str', b'CRED_DISP msg=')] + seq),
SequenceModelElement('service_start', [
FixedDataModelElement('msg1_str', b'SERVICE_START msg=')] + seq),
SequenceModelElement('service_stop', [
FixedDataModelElement('msg1_str', b'SERVICE_STOP msg=')] + seq),
SequenceModelElement('user_end', [
FixedDataModelElement('msg1_str', b'USER_END msg=')] + seq),
SequenceModelElement('user_cmd', [
FixedDataModelElement('msg1_str', b'USER_CMD msg=')] + seq),
SequenceModelElement('cred_acq', [
FixedDataModelElement('msg1_str', b'CRED_ACQ msg=')] + seq),
SequenceModelElement('user_bprm_fcaps', [
FixedDataModelElement('msg1_str', b'BPRM_FCAPS msg=audit('),
DateTimeModelElement('time', b'%s.%f'),
FixedDataModelElement('colon_str', b':'),
DecimalIntegerValueModelElement('id'),
FixedDataModelElement('fver_str', b'): fver='),
VariableByteDataModelElement('fver', alphabet),
FixedDataModelElement('fp_str', b' fp='),
VariableByteDataModelElement('fp', alphabet),
FixedDataModelElement('fi_str', b' fi='),
VariableByteDataModelElement('fi', alphabet),
FixedDataModelElement('fe_str', b' fe='),
VariableByteDataModelElement('fe', alphabet),
FixedDataModelElement('old_pp_str', b' old_pp='),
VariableByteDataModelElement('old_pp', alphabet),
FixedDataModelElement('old_pi_str', b' old_pi='),
VariableByteDataModelElement('old_pi', alphabet),
FixedDataModelElement('old_pe_str', b' old_pe='),
VariableByteDataModelElement('old_pe', alphabet),
FixedDataModelElement('new_pp_str', b' new_pp='),
VariableByteDataModelElement('new_pp', alphabet),
FixedDataModelElement('new_pi_str', b' new_pi='),
VariableByteDataModelElement('new_pi', alphabet),
FixedDataModelElement('new_pe_str', b' new_pe='),
VariableByteDataModelElement('new_pe', alphabet)])])])
return model
def test1get_id(self):
"""Test if get_id works properly."""
variable_byte_dme = VariableByteDataModelElement(
self.id_, self.alphabet)
self.assertEqual(variable_byte_dme.get_id(), self.id_)
def test2get_child_elements(self):
"""Test if get_child_elements returns None."""
variable_byte_dme = VariableByteDataModelElement(
self.id_, self.alphabet)
self.assertEqual(variable_byte_dme.get_child_elements(), None)
def build_analysis_pipeline(analysis_context):
"""
Define the function to create pipeline for parsing the log data.
It has also to define an AtomizerFactory to instruct aminer how to process incoming data streams to create log atoms from them.
"""
date_format_string = b'%Y-%m-%d %H:%M:%S'
cron = b' cron['
# Build the parsing model:
service_children_disk_report = [
FixedDataModelElement(
'Space',
b' Current Disk Data is: Filesystem Type Size Used Avail Use%'
),
DelimitedDataModelElement('Data', b'%'),
AnyByteDataModelElement('Rest')
]
service_children_login_details = [
FixedDataModelElement('User', b'User '),
DelimitedDataModelElement('Username', b' '),
FixedWordlistDataModelElement('Status',
[b' logged in', b' logged out']),
OptionalMatchModelElement(
'PastTime',
SequenceModelElement('Time', [
FixedDataModelElement('Blank', b' '),
DecimalIntegerValueModelElement('Minutes'),
FixedDataModelElement('Ago', b' minutes ago.')
]))
]
service_children_cron_job = [
DateTimeModelElement('DTM', date_format_string),
FixedDataModelElement('UNameSpace1', b' '),
DelimitedDataModelElement('UName', b' '),
FixedDataModelElement('UNameSpace2', b' '),
DelimitedDataModelElement('User', b' '),
FixedDataModelElement('Cron', cron),
DecimalIntegerValueModelElement('JobNumber'),
FixedDataModelElement('Details', b']: Job `cron.daily` started.')
]
service_children_random_time = [
FixedDataModelElement('Space', b'Random: '),
DecimalIntegerValueModelElement('Random')
]
service_children_sensors = [
SequenceModelElement('CPUTemp', [
FixedDataModelElement('FixedTemp', b'CPU Temp: '),
DecimalIntegerValueModelElement('Temp'),
FixedDataModelElement('Degrees', b'\xc2\xb0C')
]),
FixedDataModelElement('Space1', b', '),
SequenceModelElement('CPUWorkload', [
FixedDataModelElement('Fixed Workload', b'CPU Workload: '),
DecimalIntegerValueModelElement('Workload'),
FixedDataModelElement('Percent', b'%')
]),
FixedDataModelElement('Space2', b', '),
DateTimeModelElement('DTM', date_format_string)
]
service_children_user_ip_address = [
FixedDataModelElement('User', b'User '),
DelimitedDataModelElement('Username', b' '),
FixedDataModelElement('Action', b' changed IP address to '),
IpAddressDataModelElement('IP')
]
service_children_cron_job_announcement = [
DateTimeModelElement('DTM', date_format_string),
FixedDataModelElement('Space', b' '),
DelimitedDataModelElement('UName', b' '),
FixedDataModelElement('Cron', cron),
DecimalIntegerValueModelElement('JobNumber'),
FixedDataModelElement('Run', b']: Will run job `'),
FixedWordlistDataModelElement(
'CronType',
[b'cron.daily', b'cron.hourly', b'cron.monthly', b'cron.weekly']),
FixedDataModelElement('Start Time', b'\' in 5 min.')
]
service_children_cron_job_execution = [
DateTimeModelElement('DTM', date_format_string),
FixedDataModelElement('Space1', b' '),
DelimitedDataModelElement('UName', b' '),
FixedDataModelElement('Cron', cron),
DecimalIntegerValueModelElement('JobNumber'),
FixedDataModelElement('Job', b']: Job `'),
FixedWordlistDataModelElement(
'CronType',
[b'cron.daily', b'cron.hourly', b'cron.monthly', b'cron.weekly']),
FixedDataModelElement('Started', b'\' started')
]
service_children_parsing_model_element = [
DateTimeModelElement('DateTimeModelElement',
b'Current DateTime: %d.%m.%Y %H:%M:%S'),
DecimalFloatValueModelElement('DecimalFloatValueModelElement',
value_sign_type='optional'),
DecimalIntegerValueModelElement('DecimalIntegerValueModelElement',
value_sign_type='optional',
value_pad_type='blank'),
SequenceModelElement('', [
DelimitedDataModelElement('DelimitedDataModelElement', b';'),
FixedDataModelElement('FixedDataModelElement', b';')
])
]
# ElementValueBranchModelElement
fixed_data_me1 = FixedDataModelElement("fixed1", b'match ')
fixed_data_me2 = FixedDataModelElement("fixed2", b'fixed String')
fixed_wordlist_data_model_element = FixedWordlistDataModelElement(
"wordlist", [b'data: ', b'string: '])
decimal_integer_value_model_element = DecimalIntegerValueModelElement(
"decimal")
service_children_parsing_model_element.append(
ElementValueBranchModelElement(
'ElementValueBranchModelElement',
FirstMatchModelElement("first", [
SequenceModelElement(
"seq1",
[fixed_data_me1, fixed_wordlist_data_model_element]),
SequenceModelElement("seq2", [
fixed_data_me1, fixed_wordlist_data_model_element,
fixed_data_me2
])
]), "wordlist", {
0: decimal_integer_value_model_element,
1: fixed_data_me2
}))
service_children_parsing_model_element.append(
HexStringModelElement('HexStringModelElement'))
service_children_parsing_model_element.append(
SequenceModelElement('', [
FixedDataModelElement('FixedDataModelElement',
b'Gateway IP-Address: '),
IpAddressDataModelElement('IpAddressDataModelElement')
]))
service_children_parsing_model_element.append(
MultiLocaleDateTimeModelElement('MultiLocaleDateTimeModelElement',
[(b'%b %d %Y', "de_AT.utf8", None)]))
service_children_parsing_model_element.append(
RepeatedElementDataModelElement(
'RepeatedElementDataModelElement',
SequenceModelElement('SequenceModelElement', [
FixedDataModelElement('FixedDataModelElement',
b'drawn number: '),
DecimalIntegerValueModelElement(
'DecimalIntegerValueModelElement')
]), 1))
service_children_parsing_model_element.append(
VariableByteDataModelElement('VariableByteDataModelElement', b'-@#'))
service_children_parsing_model_element.append(
SequenceModelElement('', [
WhiteSpaceLimitedDataModelElement(
'WhiteSpaceLimitedDataModelElement'),
FixedDataModelElement('', b' ')
]))
# The Base64StringModelElement must be just before the AnyByteDataModelElement to avoid unexpected Matches.
service_children_parsing_model_element.append(
Base64StringModelElement('Base64StringModelElement'))
# The OptionalMatchModelElement must be paired with a FirstMatchModelElement because it accepts all data and thus no data gets
# to the AnyByteDataModelElement. The AnyByteDataModelElement must be last, because all bytes are accepted.
service_children_parsing_model_element.append(
OptionalMatchModelElement(
'OptionalMatchModelElement',
FirstMatchModelElement('FirstMatchModelElement', [
FixedDataModelElement('FixedDataModelElement',
b'The-searched-element-was-found!'),
AnyByteDataModelElement('AnyByteDataModelElement')
])))
parsing_model = FirstMatchModelElement('model', [
SequenceModelElement('CronAnnouncement',
service_children_cron_job_announcement),
SequenceModelElement('CronExecution',
service_children_cron_job_execution),
SequenceModelElement('DailyCron', service_children_cron_job),
SequenceModelElement('DiskReport', service_children_disk_report),
SequenceModelElement('LoginDetails', service_children_login_details),
DecimalIntegerValueModelElement('Random'),
SequenceModelElement('RandomTime', service_children_random_time),
SequenceModelElement('Sensors', service_children_sensors),
SequenceModelElement('IPAddresses', service_children_user_ip_address),
FirstMatchModelElement('ParsingME',
service_children_parsing_model_element)
])
# Some generic imports.
from aminer.analysis import AtomFilters
# Create all global handler lists here and append the real handlers
# later on.
# Use this filter to distribute all atoms to the analysis handlers.
atom_filter = AtomFilters.SubhandlerFilter(None)
from aminer.analysis.TimestampCorrectionFilters import SimpleMonotonicTimestampAdjust
simple_monotonic_timestamp_adjust = SimpleMonotonicTimestampAdjust(
[atom_filter])
analysis_context.register_component(
simple_monotonic_timestamp_adjust,
component_name="SimpleMonotonicTimestampAdjust")
from aminer.events.StreamPrinterEventHandler import StreamPrinterEventHandler
stream_printer_event_handler = StreamPrinterEventHandler(analysis_context)
from aminer.events.SyslogWriterEventHandler import SyslogWriterEventHandler
syslog_event_handler = SyslogWriterEventHandler(analysis_context)
from aminer.events.DefaultMailNotificationEventHandler import DefaultMailNotificationEventHandler
if DefaultMailNotificationEventHandler.CONFIG_KEY_MAIL_TARGET_ADDRESS in analysis_context.aminer_config.config_properties:
mail_notification_handler = DefaultMailNotificationEventHandler(
analysis_context)
analysis_context.register_component(mail_notification_handler,
component_name="MailHandler")
anomaly_event_handlers = [
stream_printer_event_handler, syslog_event_handler,
mail_notification_handler
]
# Now define the AtomizerFactory using the model. A simple line based one is usually sufficient.
from aminer.input.SimpleByteStreamLineAtomizerFactory import SimpleByteStreamLineAtomizerFactory
analysis_context.atomizer_factory = SimpleByteStreamLineAtomizerFactory(
parsing_model, [simple_monotonic_timestamp_adjust],
anomaly_event_handlers)
# Just report all unparsed atoms to the event handlers.
from aminer.analysis.UnparsedAtomHandlers import SimpleUnparsedAtomHandler
simple_unparsed_atom_handler = SimpleUnparsedAtomHandler(
anomaly_event_handlers)
atom_filter.add_handler(simple_unparsed_atom_handler,
stop_when_handled_flag=True)
analysis_context.register_component(simple_unparsed_atom_handler,
component_name="UnparsedHandler")
from aminer.analysis.TimestampsUnsortedDetector import TimestampsUnsortedDetector
timestamps_unsorted_detector = TimestampsUnsortedDetector(
analysis_context.aminer_config, anomaly_event_handlers)
atom_filter.add_handler(timestamps_unsorted_detector)
analysis_context.register_component(
timestamps_unsorted_detector,
component_name="TimestampsUnsortedDetector")
from aminer.analysis import Rules
from aminer.analysis.AllowlistViolationDetector import AllowlistViolationDetector
allowlist_rules = [
Rules.OrMatchRule([
Rules.AndMatchRule([
Rules.PathExistsMatchRule(
'/model/LoginDetails/PastTime/Time/Minutes'),
Rules.NegationMatchRule(
Rules.ValueMatchRule('/model/LoginDetails/Username',
b'root'))
]),
Rules.AndMatchRule([
Rules.NegationMatchRule(
Rules.PathExistsMatchRule(
'/model/LoginDetails/PastTime/Time/Minutes')),
Rules.PathExistsMatchRule('/model/LoginDetails')
]),
Rules.NegationMatchRule(
Rules.PathExistsMatchRule('/model/LoginDetails'))
])
]
# This rule list should trigger, when the line does not look like: User root (logged in, logged out)
# or User 'username' (logged in, logged out) x minutes ago.
allowlist_violation_detector = AllowlistViolationDetector(
analysis_context.aminer_config, allowlist_rules,
anomaly_event_handlers)
analysis_context.register_component(allowlist_violation_detector,
component_name="Allowlist")
atom_filter.add_handler(allowlist_violation_detector)
from aminer.analysis.NewMatchPathDetector import NewMatchPathDetector
new_match_path_detector = NewMatchPathDetector(
analysis_context.aminer_config,
anomaly_event_handlers,
auto_include_flag=True)
analysis_context.register_component(new_match_path_detector,
component_name="NewMatchPath")
atom_filter.add_handler(new_match_path_detector)
def tuple_transformation_function(match_value_list):
"""Only allow output of the EnhancedNewMatchPathValueComboDetector after every 10000th element."""
extra_data = enhanced_new_match_path_value_combo_detector.known_values_dict.get(
tuple(match_value_list))
if extra_data is not None:
mod = 10000
if (extra_data[2] + 1) % mod == 0:
enhanced_new_match_path_value_combo_detector.auto_include_flag = False
else:
enhanced_new_match_path_value_combo_detector.auto_include_flag = True
return match_value_list
from aminer.analysis.EnhancedNewMatchPathValueComboDetector import EnhancedNewMatchPathValueComboDetector
enhanced_new_match_path_value_combo_detector = EnhancedNewMatchPathValueComboDetector(
analysis_context.aminer_config,
['/model/DailyCron/UName', '/model/DailyCron/JobNumber'],
anomaly_event_handlers,
auto_include_flag=True,
tuple_transformation_function=tuple_transformation_function)
analysis_context.register_component(
enhanced_new_match_path_value_combo_detector,
component_name="EnhancedNewValueCombo")
atom_filter.add_handler(enhanced_new_match_path_value_combo_detector)
from aminer.analysis.HistogramAnalysis import HistogramAnalysis, LinearNumericBinDefinition, ModuloTimeBinDefinition, \
PathDependentHistogramAnalysis
modulo_time_bin_definition = ModuloTimeBinDefinition(
86400, 3600, 0, 1, 24, True)
linear_numeric_bin_definition = LinearNumericBinDefinition(50, 5, 20, True)
histogram_analysis = HistogramAnalysis(
analysis_context.aminer_config,
[('/model/RandomTime/Random', modulo_time_bin_definition),
('/model/Random', linear_numeric_bin_definition)], 10,
anomaly_event_handlers)
analysis_context.register_component(histogram_analysis,
component_name="HistogramAnalysis")
atom_filter.add_handler(histogram_analysis)
path_dependent_histogram_analysis = PathDependentHistogramAnalysis(
analysis_context.aminer_config, '/model/RandomTime',
modulo_time_bin_definition, 10, anomaly_event_handlers)
analysis_context.register_component(
path_dependent_histogram_analysis,
component_name="PathDependentHistogramAnalysis")
atom_filter.add_handler(path_dependent_histogram_analysis)
from aminer.analysis.MatchValueAverageChangeDetector import MatchValueAverageChangeDetector
match_value_average_change_detector = MatchValueAverageChangeDetector(
analysis_context.aminer_config, anomaly_event_handlers, None,
['/model/Random'], 100, 10)
analysis_context.register_component(
match_value_average_change_detector,
component_name="MatchValueAverageChange")
atom_filter.add_handler(match_value_average_change_detector)
import sys
from aminer.analysis.MatchValueStreamWriter import MatchValueStreamWriter
match_value_stream_writer = MatchValueStreamWriter(sys.stdout, [
'/model/Sensors/CPUTemp', '/model/Sensors/CPUWorkload',
'/model/Sensors/DTM'
], b';', b'')
analysis_context.register_component(
match_value_stream_writer, component_name="MatchValueStreamWriter")
atom_filter.add_handler(match_value_stream_writer)
from aminer.analysis.NewMatchPathValueComboDetector import NewMatchPathValueComboDetector
new_match_path_value_combo_detector = NewMatchPathValueComboDetector(
analysis_context.aminer_config,
['/model/IPAddresses/Username', '/model/IPAddresses/IP'],
anomaly_event_handlers,
auto_include_flag=True)
analysis_context.register_component(
new_match_path_value_combo_detector,
component_name="NewMatchPathValueCombo")
atom_filter.add_handler(new_match_path_value_combo_detector)
from aminer.analysis.NewMatchPathValueDetector import NewMatchPathValueDetector
new_match_path_value_detector = NewMatchPathValueDetector(
analysis_context.aminer_config,
['/model/DailyCron/JobNumber', '/model/IPAddresses/Username'],
anomaly_event_handlers,
auto_include_flag=True)
analysis_context.register_component(new_match_path_value_detector,
component_name="NewMatchPathValue")
atom_filter.add_handler(new_match_path_value_detector)
from aminer.analysis.MissingMatchPathValueDetector import MissingMatchPathValueDetector
missing_match_path_value_detector = MissingMatchPathValueDetector(
analysis_context.aminer_config, ['/model/DiskReport/Space'],
anomaly_event_handlers,
auto_include_flag=True,
default_interval=2,
realert_interval=5)
analysis_context.register_component(missing_match_path_value_detector,
component_name="MissingMatch")
atom_filter.add_handler(missing_match_path_value_detector)
from aminer.analysis.TimeCorrelationDetector import TimeCorrelationDetector
time_correlation_detector = TimeCorrelationDetector(
analysis_context.aminer_config,
anomaly_event_handlers,
2,
min_rule_attributes=1,
max_rule_attributes=5,
record_count_before_event=70000,
output_log_line=True)
analysis_context.register_component(
time_correlation_detector, component_name="TimeCorrelationDetector")
atom_filter.add_handler(time_correlation_detector)
from aminer.analysis.TimeCorrelationViolationDetector import TimeCorrelationViolationDetector, CorrelationRule, EventClassSelector
cron_job_announcement = CorrelationRule(
'CronJobAnnouncement',
5,
6,
max_artefacts_a_for_single_b=1,
artefact_match_parameters=[('/model/CronAnnouncement/JobNumber',
'/model/CronExecution/JobNumber')])
a_class_selector = EventClassSelector('Announcement',
[cron_job_announcement], None)
b_class_selector = EventClassSelector('Execution', None,
[cron_job_announcement])
rules = [
Rules.PathExistsMatchRule('/model/CronAnnouncement/Run',
a_class_selector),
Rules.PathExistsMatchRule('/model/CronExecution/Job', b_class_selector)
]
time_correlation_violation_detector = TimeCorrelationViolationDetector(
analysis_context.aminer_config, rules, anomaly_event_handlers)
analysis_context.register_component(
time_correlation_violation_detector,
component_name="TimeCorrelationViolationDetector")
atom_filter.add_handler(time_correlation_violation_detector)
def get_model():
"""Get the model."""
interface_name_model = VariableByteDataModelElement(
"interface", b"0123456789abcdefghijklmnopqrstuvwxyz.")
dtme = DateTimeModelElement("expire-date", b"%Y-%m-%dT%H:%M:%SZ")
type_children = [
SequenceModelElement("exit", [
FixedDataModelElement("s0", b"ntpd exiting on signal "),
DecimalIntegerValueModelElement("signal")
]),
SequenceModelElement("listen-drop", [
FixedDataModelElement("s0", b"Listen and drop on "),
DecimalIntegerValueModelElement("fd"),
FixedDataModelElement("s1", b" "), interface_name_model,
FixedDataModelElement("s2", b" "),
FirstMatchModelElement("address", [
IpAddressDataModelElement("ipv4"),
DelimitedDataModelElement("ipv6", b" "),
FixedDataModelElement("ipv6_missing", b"[::]")
]),
FirstMatchModelElement("udp", [
FixedDataModelElement("s3", b" UDP 123"),
FixedDataModelElement("s3", b":123")
])
]),
SequenceModelElement("listen-normal", [
FixedDataModelElement("s0", b"Listen normally on "),
DecimalIntegerValueModelElement("fd"),
FixedDataModelElement("s1", b" "), interface_name_model,
FixedDataModelElement("s2", b" "),
IpAddressDataModelElement("ip"),
FirstMatchModelElement("msg", [
FixedDataModelElement("port-new", b":123"),
FixedDataModelElement("port-old", b" UDP 123")
])
]),
SequenceModelElement("listen-routing", [
FixedDataModelElement("s0",
b"Listening on routing socket on fd #"),
DecimalIntegerValueModelElement("fd"),
FixedDataModelElement("s1", b" for interface updates")
]),
SequenceModelElement("soliciting-pool", [
FixedDataModelElement("s0", b"Soliciting pool server "),
IpAddressDataModelElement("pool-server-ip")
]),
SequenceModelElement("starting", [
FixedDataModelElement("s0", b"ntpd "),
DelimitedDataModelElement("version", b" "),
FixedDataModelElement("s1", b" (1): Starting")
]),
SequenceModelElement("no-root", [
FixedDataModelElement("s0", b"must be run as root, not uid "),
DecimalIntegerValueModelElement("uid")
]),
SequenceModelElement("leapsecond-file", [
FixedDataModelElement("s0", b"leapsecond file ('"),
DelimitedDataModelElement("file", b"'"),
FixedDataModelElement("s1", b"'): "),
FirstMatchModelElement("first", [
FixedDataModelElement("msg", b"good hash signature"),
SequenceModelElement("seq", [
FixedDataModelElement("s2", b"loaded, expire="), dtme,
FixedDataModelElement("s3", b" last="), dtme,
FixedDataModelElement("s4", b" ofs="),
DecimalIntegerValueModelElement("ofs")
])
])
]),
FixedDataModelElement(
"unable-to-bind",
b"unable to bind to wildcard address :: - another process may be running - EXITING"
),
FixedDataModelElement("new-interfaces",
b"new interface(s) found: waking up resolver"),
FixedDataModelElement(
"ntp-io",
b"ntp_io: estimated max descriptors: 1024, initial socket boundary: 16"
),
FixedDataModelElement("peers-refreshed", b"peers refreshed"),
FixedDataModelElement("log-file", b"logging to file /var/log/ntplog"),
FixedDataModelElement("command-line", b"Command line: ntpd"),
SequenceModelElement("precision", [
FixedDataModelElement("s0", b"proto: precision = "),
DecimalFloatValueModelElement("precision"),
FixedDataModelElement("s1", b" usec ("),
DecimalIntegerValueModelElement(
"usec",
value_sign_type=DecimalIntegerValueModelElement.
SIGN_TYPE_OPTIONAL),
FixedDataModelElement("s2", b")")
])
]
model = SequenceModelElement("ntpd", [
FixedDataModelElement("sname", b"ntpd["),
DecimalIntegerValueModelElement("pid"),
FixedDataModelElement("s0", b"]: "),
FirstMatchModelElement("msg", type_children)
])
return model
def build_analysis_pipeline(analysis_context):
"""
Define the function to create pipeline for parsing the log data.
It has also to define an AtomizerFactory to instruct aminer how to process incoming data streams to create log atoms from them.
"""
date_format_string = b'%Y-%m-%d %H:%M:%S'
cron = b' cron['
# Build the parsing model:
service_children_disk_report = [
FixedDataModelElement('Space', b' Current Disk Data is: Filesystem Type Size Used Avail Use%'),
DelimitedDataModelElement('Data', b'%'), AnyByteDataModelElement('Rest')]
service_children_login_details = [
FixedDataModelElement('User/LoginDetails', b'User '), DelimitedDataModelElement('Username', b' '),
FixedWordlistDataModelElement('Status', [b' logged in', b' logged out']),
OptionalMatchModelElement('PastTime', SequenceModelElement('Time', [
FixedDataModelElement('Blank', b' '), DecimalIntegerValueModelElement('Minutes'),
FixedDataModelElement('Ago', b' minutes ago.')]))]
service_children_cron_job = [
DateTimeModelElement('DTM', date_format_string), FixedDataModelElement('UNameSpace1', b' '),
DelimitedDataModelElement('UName', b' '), FixedDataModelElement('UNameSpace2', b' '), DelimitedDataModelElement('User', b' '),
FixedDataModelElement('Cron', cron), DecimalIntegerValueModelElement('JobNumber'),
FixedDataModelElement('Details', b']: Job `cron.daily` started.')]
service_children_random_time = [FixedDataModelElement('Space', b'Random: '), DecimalIntegerValueModelElement('Random')]
service_children_sensors = [SequenceModelElement('CPUTemp', [
FixedDataModelElement('FixedTemp', b'CPU Temp: '), DecimalIntegerValueModelElement('Temp'),
FixedDataModelElement('Degrees', b'\xc2\xb0C')]), FixedDataModelElement('Space1', b', '), SequenceModelElement('CPUWorkload', [
FixedDataModelElement('FixedWorkload', b'CPU Workload: '), DecimalIntegerValueModelElement('Workload'),
FixedDataModelElement('Percent', b'%')]), FixedDataModelElement('Space2', b', '),
DateTimeModelElement('DTM', date_format_string)]
service_children_user_ip_address = [
FixedDataModelElement('User/UserIPAddress', b'User '), DelimitedDataModelElement('Username', b' '),
FixedDataModelElement('Action', b' changed IP address to '), IpAddressDataModelElement('IP')]
service_children_cron_job_announcement = [
DateTimeModelElement('DTM', date_format_string), FixedDataModelElement('Space', b' '),
DelimitedDataModelElement('UName', b' '), FixedDataModelElement('Cron', cron), DecimalIntegerValueModelElement('JobNumber'),
FixedDataModelElement('Run', b']: Will run job `'),
FixedWordlistDataModelElement('CronType', [b'cron.daily', b'cron.hourly', b'cron.monthly', b'cron.weekly']),
FixedDataModelElement('StartTime', b'\' in 5 min.')]
service_children_cron_job_execution = [
DateTimeModelElement('DTM', date_format_string), FixedDataModelElement('Space1', b' '),
DelimitedDataModelElement('UName', b' '), FixedDataModelElement('Cron', cron), DecimalIntegerValueModelElement('JobNumber'),
FixedDataModelElement('Job', b']: Job `'),
FixedWordlistDataModelElement('CronType', [b'cron.daily', b'cron.hourly', b'cron.monthly', b'cron.weekly']),
FixedDataModelElement('Started', b'\' started')]
service_children_audit = [SequenceModelElement('path', [
FixedDataModelElement('type', b'type=PATH '), FixedDataModelElement('msg_audit', b'msg=audit('),
DelimitedDataModelElement('msg', b':'), FixedDataModelElement('placeholder', b':'), DecimalIntegerValueModelElement('id'),
FixedDataModelElement('item_string', b'): item='), DecimalIntegerValueModelElement('item'),
FixedDataModelElement('name_string', b' name="'), DelimitedDataModelElement('name', b'"'),
FixedDataModelElement('inode_string', b'" inode='), DecimalIntegerValueModelElement('inode'),
FixedDataModelElement('dev_string', b' dev='), DelimitedDataModelElement('dev', b' '),
FixedDataModelElement('mode_string', b' mode='),
DecimalIntegerValueModelElement('mode', value_pad_type=DecimalIntegerValueModelElement.PAD_TYPE_ZERO),
FixedDataModelElement('ouid_string', b' ouid='), DecimalIntegerValueModelElement('ouid'),
FixedDataModelElement('ogid_string', b' ogid='), DecimalIntegerValueModelElement('ogid'),
FixedDataModelElement('rdev_string', b' rdev='), DelimitedDataModelElement('rdev', b' '),
FixedDataModelElement('nametype_string', b' nametype='), FixedWordlistDataModelElement('nametype', [b'NORMAL', b'ERROR'])]),
SequenceModelElement('syscall', [
FixedDataModelElement('type', b'type=SYSCALL '), FixedDataModelElement('msg_audit', b'msg=audit('),
DelimitedDataModelElement('msg', b':'), FixedDataModelElement('placeholder', b':'), DecimalIntegerValueModelElement('id'),
FixedDataModelElement('arch_string', b'): arch='), DelimitedDataModelElement('arch', b' '),
FixedDataModelElement('syscall_string', b' syscall='), DecimalIntegerValueModelElement('syscall'),
FixedDataModelElement('success_string', b' success='), FixedWordlistDataModelElement('success', [b'yes', b'no']),
FixedDataModelElement('exit_string', b' exit='), DecimalIntegerValueModelElement('exit'),
AnyByteDataModelElement('remainding_data')])]
service_children_parsing_model_element = [
DateTimeModelElement('DateTimeModelElement', b'Current DateTime: %d.%m.%Y %H:%M:%S'),
DecimalFloatValueModelElement('DecimalFloatValueModelElement', value_sign_type='optional'),
DecimalIntegerValueModelElement('DecimalIntegerValueModelElement', value_sign_type='optional', value_pad_type='blank'),
SequenceModelElement('se', [
DelimitedDataModelElement('DelimitedDataModelElement', b';'), FixedDataModelElement('FixedDataModelElement', b';')])]
# ElementValueBranchModelElement
fixed_data_me1 = FixedDataModelElement("fixed1", b'match ')
fixed_data_me2 = FixedDataModelElement("fixed2", b'fixed String')
fixed_wordlist_data_model_element = FixedWordlistDataModelElement("wordlist", [b'data: ', b'string: '])
decimal_integer_value_model_element = DecimalIntegerValueModelElement("decimal")
service_children_parsing_model_element.append(
ElementValueBranchModelElement('ElementValueBranchModelElement', FirstMatchModelElement("first", [
SequenceModelElement("seq1", [fixed_data_me1, fixed_wordlist_data_model_element]),
SequenceModelElement("seq2", [fixed_data_me1, fixed_wordlist_data_model_element, fixed_data_me2])]), "wordlist",
{0: decimal_integer_value_model_element, 1: fixed_data_me2}))
service_children_parsing_model_element.append(HexStringModelElement('HexStringModelElement'))
service_children_parsing_model_element.append(SequenceModelElement('se2', [
FixedDataModelElement('FixedDataModelElement', b'Gateway IP-Address: '), IpAddressDataModelElement('IpAddressDataModelElement')]))
import locale
loc = locale.getlocale()
if loc == (None, None):
loc = ('en_US', 'utf8')
service_children_parsing_model_element.append(
MultiLocaleDateTimeModelElement('MultiLocaleDateTimeModelElement', [(b'%b %d %Y', None, '%s.%s' % loc)]))
service_children_parsing_model_element.append(
RepeatedElementDataModelElement('RepeatedElementDataModelElement', SequenceModelElement('SequenceModelElement', [
FixedDataModelElement('FixedDataModelElement', b'[drawn number]: '),
DecimalIntegerValueModelElement('DecimalIntegerValueModelElement')]), 1))
service_children_parsing_model_element.append(VariableByteDataModelElement('VariableByteDataModelElement', b'-@#'))
service_children_parsing_model_element.append(SequenceModelElement('se', [
WhiteSpaceLimitedDataModelElement('WhiteSpaceLimitedDataModelElement'), FixedDataModelElement('fixed', b' ')]))
# The Base64StringModelElement must be just before the AnyByteDataModelElement to avoid unexpected Matches.
service_children_parsing_model_element.append(Base64StringModelElement('Base64StringModelElement'))
# The OptionalMatchModelElement must be paired with a FirstMatchModelElement because it accepts all data and thus no data gets
# to the AnyByteDataModelElement. The AnyByteDataModelElement must be last, because all bytes are accepted.
service_children_parsing_model_element.append(
OptionalMatchModelElement('/', FirstMatchModelElement('FirstMatchModelElement//optional', [
FixedDataModelElement('FixedDataModelElement', b'The-searched-element-was-found!'), SequenceModelElement('se', [
FixedDataModelElement('FixedDME', b'Any:'), AnyByteDataModelElement('AnyByteDataModelElement')])])))
alphabet = b'ghijkl'
service_children_ecd = []
for _, char in enumerate(alphabet):
char = bytes([char])
service_children_ecd.append(FixedDataModelElement(char.decode(), char))
parsing_model = FirstMatchModelElement('model', [
SequenceModelElement('CronAnnouncement', service_children_cron_job_announcement),
SequenceModelElement('CronExecution', service_children_cron_job_execution),
SequenceModelElement('DailyCron', service_children_cron_job), SequenceModelElement('DiskReport', service_children_disk_report),
SequenceModelElement('LoginDetails', service_children_login_details), DecimalIntegerValueModelElement('Random'),
SequenceModelElement('RandomTime', service_children_random_time), SequenceModelElement('Sensors', service_children_sensors),
SequenceModelElement('IPAddresses', service_children_user_ip_address), FirstMatchModelElement('type', service_children_audit),
FirstMatchModelElement('ECD', service_children_ecd), FirstMatchModelElement('ParsingME', service_children_parsing_model_element)])
# Some generic imports.
from aminer.analysis import AtomFilters
# Create all global handler lists here and append the real handlers later on.
# Use this filter to distribute all atoms to the analysis handlers.
atom_filter = AtomFilters.SubhandlerFilter(None)
from aminer.analysis.TimestampCorrectionFilters import SimpleMonotonicTimestampAdjust
simple_monotonic_timestamp_adjust = SimpleMonotonicTimestampAdjust([atom_filter])
analysis_context.register_component(simple_monotonic_timestamp_adjust, component_name="SimpleMonotonicTimestampAdjust")
from aminer.events.StreamPrinterEventHandler import StreamPrinterEventHandler
from aminer.events.JsonConverterHandler import JsonConverterHandler
stream_printer_event_handler = StreamPrinterEventHandler(analysis_context)
json_converter_handler = JsonConverterHandler([stream_printer_event_handler], analysis_context)
anomaly_event_handlers = [json_converter_handler]
# Now define the AtomizerFactory using the model. A simple line based one is usually sufficient.
from aminer.input.SimpleByteStreamLineAtomizerFactory import SimpleByteStreamLineAtomizerFactory
analysis_context.atomizer_factory = SimpleByteStreamLineAtomizerFactory(parsing_model, [simple_monotonic_timestamp_adjust],
anomaly_event_handlers)
# Just report all unparsed atoms to the event handlers.
from aminer.analysis.UnparsedAtomHandlers import SimpleUnparsedAtomHandler, VerboseUnparsedAtomHandler
simple_unparsed_atom_handler = SimpleUnparsedAtomHandler(anomaly_event_handlers)
atom_filter.add_handler(simple_unparsed_atom_handler, stop_when_handled_flag=False)
analysis_context.register_component(simple_unparsed_atom_handler, component_name="SimpleUnparsedHandler")
verbose_unparsed_atom_handler = VerboseUnparsedAtomHandler(anomaly_event_handlers, parsing_model)
atom_filter.add_handler(verbose_unparsed_atom_handler, stop_when_handled_flag=True)
analysis_context.register_component(verbose_unparsed_atom_handler, component_name="VerboseUnparsedHandler")
from aminer.analysis.TimestampsUnsortedDetector import TimestampsUnsortedDetector
timestamps_unsorted_detector = TimestampsUnsortedDetector(analysis_context.aminer_config, anomaly_event_handlers)
atom_filter.add_handler(timestamps_unsorted_detector)
analysis_context.register_component(timestamps_unsorted_detector, component_name="TimestampsUnsortedDetector")
from aminer.analysis import Rules
from aminer.analysis.AllowlistViolationDetector import AllowlistViolationDetector
allowlist_rules = [
Rules.OrMatchRule([
Rules.AndMatchRule([
Rules.PathExistsMatchRule('/model/LoginDetails/PastTime/Time/Minutes'),
Rules.NegationMatchRule(Rules.ValueMatchRule('/model/LoginDetails/Username', b'root')),
Rules.DebugMatchRule(debug_match_result=True)]),
Rules.AndMatchRule([
Rules.NegationMatchRule(Rules.PathExistsMatchRule('/model/LoginDetails/PastTime/Time/Minutes')),
Rules.PathExistsMatchRule('/model/LoginDetails'),
Rules.DebugMatchRule(debug_match_result=True)]),
Rules.NegationMatchRule(Rules.PathExistsMatchRule('/model/LoginDetails'))])]
# This rule list should trigger, when the line does not look like: User root (logged in, logged out)
# or User 'username' (logged in, logged out) x minutes ago.
allowlist_violation_detector = AllowlistViolationDetector(analysis_context.aminer_config, allowlist_rules, anomaly_event_handlers,
output_log_line=True)
analysis_context.register_component(allowlist_violation_detector, component_name="Allowlist")
atom_filter.add_handler(allowlist_violation_detector)
from aminer.analysis.ParserCount import ParserCount
parser_count = ParserCount(analysis_context.aminer_config, None, anomaly_event_handlers, 10)
analysis_context.register_component(parser_count, component_name="ParserCount")
atom_filter.add_handler(parser_count)
from aminer.analysis.EventTypeDetector import EventTypeDetector
etd = EventTypeDetector(analysis_context.aminer_config, anomaly_event_handlers)
analysis_context.register_component(etd, component_name="EventTypeDetector")
atom_filter.add_handler(etd)
from aminer.analysis.VariableTypeDetector import VariableTypeDetector
vtd = VariableTypeDetector(analysis_context.aminer_config, anomaly_event_handlers, etd, silence_output_except_indicator=False,
output_log_line=False, ignore_list=["/model/RandomTime"])
analysis_context.register_component(vtd, component_name="VariableTypeDetector")
atom_filter.add_handler(vtd)
from aminer.analysis.VariableCorrelationDetector import VariableCorrelationDetector
vtd = VariableCorrelationDetector(analysis_context.aminer_config, anomaly_event_handlers, etd, disc_div_thres=0.5,
ignore_list=["/model/RandomTime"])
analysis_context.register_component(vtd, component_name="VariableCorrelationDetector")
atom_filter.add_handler(vtd)
from aminer.analysis.EventCorrelationDetector import EventCorrelationDetector
ecd = EventCorrelationDetector(analysis_context.aminer_config, anomaly_event_handlers, check_rules_flag=True,
hypothesis_max_delta_time=1.0)
analysis_context.register_component(ecd, component_name="EventCorrelationDetector")
atom_filter.add_handler(ecd)
from aminer.analysis.EventFrequencyDetector import EventFrequencyDetector
efd = EventFrequencyDetector(analysis_context.aminer_config, anomaly_event_handlers, window_size=0.1)
analysis_context.register_component(efd, component_name="EventFrequencyDetector")
atom_filter.add_handler(efd)
from aminer.analysis.EventSequenceDetector import EventSequenceDetector
esd = EventSequenceDetector(analysis_context.aminer_config, anomaly_event_handlers, ['/model/ParsingME'], ignore_list=[
'/model/ECD/g', '/model/ECD/h', '/model/ECD/i', '/model/ECD/j', '/model/ECD/k', '/model/ECD/l', '/model/Random',
'/model/RandomTime', '/model/DailyCron'])
analysis_context.register_component(esd, component_name="EventSequenceDetector")
atom_filter.add_handler(esd)
from aminer.analysis.MatchFilter import MatchFilter
match_filter = MatchFilter(analysis_context.aminer_config, ['/model/Random'], anomaly_event_handlers, target_value_list=[
1, 10, 100], output_log_line=True)
analysis_context.register_component(match_filter, component_name="MatchFilter")
atom_filter.add_handler(match_filter)
from aminer.analysis.NewMatchPathDetector import NewMatchPathDetector
new_match_path_detector = NewMatchPathDetector(analysis_context.aminer_config, anomaly_event_handlers, auto_include_flag=True,
output_log_line=True)
analysis_context.register_component(new_match_path_detector, component_name="NewMatchPath")
atom_filter.add_handler(new_match_path_detector)
def tuple_transformation_function(match_value_list):
"""Only allow output of the EnhancedNewMatchPathValueComboDetector after every 10th element."""
extra_data = enhanced_new_match_path_value_combo_detector.known_values_dict.get(tuple(match_value_list))
if extra_data is not None:
mod = 10
if (extra_data[2] + 1) % mod == 0:
enhanced_new_match_path_value_combo_detector.auto_include_flag = False
else:
enhanced_new_match_path_value_combo_detector.auto_include_flag = True
return match_value_list
from aminer.analysis.EnhancedNewMatchPathValueComboDetector import EnhancedNewMatchPathValueComboDetector
enhanced_new_match_path_value_combo_detector = EnhancedNewMatchPathValueComboDetector(analysis_context.aminer_config, [
'/model/DailyCron/UName', '/model/DailyCron/JobNumber'], anomaly_event_handlers, auto_include_flag=True,
tuple_transformation_function=tuple_transformation_function, output_log_line=True)
analysis_context.register_component(enhanced_new_match_path_value_combo_detector, component_name="EnhancedNewValueCombo")
atom_filter.add_handler(enhanced_new_match_path_value_combo_detector)
import re
ip_match_action = Rules.EventGenerationMatchAction(
"Analysis.Rules.IPv4InRFC1918MatchRule", "Private IP address occurred!", anomaly_event_handlers)
vdmt = Rules.ValueDependentModuloTimeMatchRule(None, 3, ["/model/ECD/j", "/model/ECD/k", "/model/ECD/l"], {b"e": [0, 2.95]}, [0, 3])
mt = Rules.ModuloTimeMatchRule(None, 3, 0, 3, None)
time_allowlist_rules = [
Rules.AndMatchRule([
Rules.ParallelMatchRule([
Rules.ValueDependentDelegatedMatchRule([
'/model/ECD/g', '/model/ECD/h', '/model/ECD/i', '/model/ECD/j', '/model/ECD/k', '/model/ECD/l'], {
(b"a",): mt, (b"b",): mt, (b"c",): mt, (b"d",): vdmt, (b"e",): vdmt, (b"f",): vdmt, None: mt}, mt),
Rules.IPv4InRFC1918MatchRule("/model/ParsingME/se2/IpAddressDataModelElement", ip_match_action),
Rules.DebugHistoryMatchRule(debug_match_result=True)
]),
# IP addresses 8.8.8.8, 8.8.4.4 and 10.0.0.0 - 10.255.255.255 are not allowed
Rules.NegationMatchRule(Rules.ValueListMatchRule("/model/ParsingME/se2/IpAddressDataModelElement", [134744072, 134743044])),
Rules.NegationMatchRule(Rules.ValueRangeMatchRule("/model/ParsingME/se2/IpAddressDataModelElement", 167772160, 184549375)),
Rules.NegationMatchRule(Rules.StringRegexMatchRule("/model/type/syscall/success", re.compile(b"^no$")))
])
]
time_allowlist_violation_detector = AllowlistViolationDetector(
analysis_context.aminer_config, time_allowlist_rules, anomaly_event_handlers, output_log_line=True)
analysis_context.register_component(time_allowlist_violation_detector, component_name="TimeAllowlist")
atom_filter.add_handler(time_allowlist_violation_detector)
from aminer.analysis.HistogramAnalysis import HistogramAnalysis, LinearNumericBinDefinition, ModuloTimeBinDefinition, \
PathDependentHistogramAnalysis
modulo_time_bin_definition = ModuloTimeBinDefinition(86400, 3600, 0, 1, 24, True)
linear_numeric_bin_definition = LinearNumericBinDefinition(50, 5, 20, True)
histogram_analysis = HistogramAnalysis(analysis_context.aminer_config, [
('/model/RandomTime/Random', modulo_time_bin_definition), ('/model/Random', linear_numeric_bin_definition)], 10,
anomaly_event_handlers, output_log_line=True)
analysis_context.register_component(histogram_analysis, component_name="HistogramAnalysis")
atom_filter.add_handler(histogram_analysis)
path_dependent_histogram_analysis = PathDependentHistogramAnalysis(
analysis_context.aminer_config, '/model/RandomTime', modulo_time_bin_definition, 10, anomaly_event_handlers, output_log_line=True)
analysis_context.register_component(path_dependent_histogram_analysis, component_name="PathDependentHistogramAnalysis")
atom_filter.add_handler(path_dependent_histogram_analysis)
from aminer.analysis.MatchValueAverageChangeDetector import MatchValueAverageChangeDetector
match_value_average_change_detector = MatchValueAverageChangeDetector(analysis_context.aminer_config, anomaly_event_handlers, None, [
'/model/Random'], 100, 10, output_log_line=True)
analysis_context.register_component(match_value_average_change_detector, component_name="MatchValueAverageChange")
atom_filter.add_handler(match_value_average_change_detector)
import sys
from aminer.analysis.MatchValueStreamWriter import MatchValueStreamWriter
match_value_stream_writer = MatchValueStreamWriter(
sys.stdout, ['/model/Sensors/CPUTemp', '/model/Sensors/CPUWorkload', '/model/Sensors/DTM'], b';', b'')
analysis_context.register_component(match_value_stream_writer, component_name="MatchValueStreamWriter")
atom_filter.add_handler(match_value_stream_writer)
from aminer.analysis.NewMatchPathValueComboDetector import NewMatchPathValueComboDetector
new_match_path_value_combo_detector = NewMatchPathValueComboDetector(
analysis_context.aminer_config, ['/model/IPAddresses/Username', '/model/IPAddresses/IP'],
anomaly_event_handlers, output_log_line=True)
analysis_context.register_component(new_match_path_value_combo_detector, component_name="NewMatchPathValueCombo")
atom_filter.add_handler(new_match_path_value_combo_detector)
from aminer.analysis.NewMatchIdValueComboDetector import NewMatchIdValueComboDetector
new_match_id_value_combo_detector = NewMatchIdValueComboDetector(analysis_context.aminer_config, [
'/model/type/path/name', '/model/type/syscall/syscall'], anomaly_event_handlers, id_path_list=[
'/model/type/path/id', '/model/type/syscall/id'], min_allowed_time_diff=5, auto_include_flag=True, allow_missing_values_flag=True,
output_log_line=True)
analysis_context.register_component(new_match_id_value_combo_detector, component_name="NewMatchIdValueComboDetector")
atom_filter.add_handler(new_match_id_value_combo_detector)
from aminer.analysis.NewMatchPathValueDetector import NewMatchPathValueDetector
new_match_path_value_detector = NewMatchPathValueDetector(analysis_context.aminer_config, [
'/model/DailyCron/JobNumber', '/model/IPAddresses/Username'], anomaly_event_handlers, auto_include_flag=True, output_log_line=True)
analysis_context.register_component(new_match_path_value_detector, component_name="NewMatchPathValue")
atom_filter.add_handler(new_match_path_value_detector)
from aminer.analysis.MissingMatchPathValueDetector import MissingMatchPathValueDetector
missing_match_path_value_detector = MissingMatchPathValueDetector(
analysis_context.aminer_config, ['/model/DiskReport/Space'], anomaly_event_handlers, auto_include_flag=True, default_interval=2,
realert_interval=5, output_log_line=True)
analysis_context.register_component(missing_match_path_value_detector, component_name="MissingMatch")
atom_filter.add_handler(missing_match_path_value_detector)
from aminer.analysis.TimeCorrelationDetector import TimeCorrelationDetector
time_correlation_detector = TimeCorrelationDetector(
analysis_context.aminer_config, anomaly_event_handlers, 2, min_rule_attributes=1, max_rule_attributes=5,
record_count_before_event=10000, output_log_line=True)
analysis_context.register_component(time_correlation_detector, component_name="TimeCorrelationDetector")
atom_filter.add_handler(time_correlation_detector)
from aminer.analysis.TimeCorrelationViolationDetector import TimeCorrelationViolationDetector, CorrelationRule, EventClassSelector
cron_job_announcement = CorrelationRule('CronJobAnnouncement', 5, 6, max_artefacts_a_for_single_b=1, artefact_match_parameters=[
('/model/CronAnnouncement/JobNumber', '/model/CronExecution/JobNumber')])
a_class_selector = EventClassSelector('Announcement', [cron_job_announcement], None)
b_class_selector = EventClassSelector('Execution', None, [cron_job_announcement])
rules = [Rules.PathExistsMatchRule('/model/CronAnnouncement/Run', a_class_selector),
Rules.PathExistsMatchRule('/model/CronExecution/Job', b_class_selector)]
time_correlation_violation_detector = TimeCorrelationViolationDetector(analysis_context.aminer_config, rules, anomaly_event_handlers,
output_log_line=True)
analysis_context.register_component(time_correlation_violation_detector, component_name="TimeCorrelationViolationDetector")
atom_filter.add_handler(time_correlation_violation_detector)
def get_model():
"""Return a model to parse Audit logs from the AIT-LDS."""
alphabet = b"!'#$%&\"()*+,-./0123456789:;<>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz{|}~=[]"
seq = [
FixedDataModelElement("audit_str", b"audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("pid_str", b"): pid="),
VariableByteDataModelElement("pid", alphabet),
FixedDataModelElement("uid_str", b" uid="),
VariableByteDataModelElement("uid", alphabet),
FixedDataModelElement("auid_str", b" auid="),
VariableByteDataModelElement("auid", alphabet),
FixedDataModelElement("ses_str", b" ses="),
VariableByteDataModelElement("ses", alphabet),
FixedDataModelElement("msg2_str", b" msg="),
VariableByteDataModelElement("msg2", alphabet),
FirstMatchModelElement("fm", [
SequenceModelElement("acct", [
FixedDataModelElement("acct_str", b" acct="),
VariableByteDataModelElement("acct", alphabet)]),
SequenceModelElement("comm", [
FixedDataModelElement("comm_str", b" comm="),
VariableByteDataModelElement("comm", alphabet)]),
SequenceModelElement("cmd", [
FixedDataModelElement("cmd_str", b" cmd="),
VariableByteDataModelElement("cmd", alphabet)])]),
OptionalMatchModelElement(
"opt", SequenceModelElement("opt_seq", [
FixedDataModelElement("exe_str", b" exe="),
VariableByteDataModelElement("exe", alphabet),
FixedDataModelElement("hostname_str", b" hostname="),
VariableByteDataModelElement("hostname", alphabet),
FixedDataModelElement("addr_str", b" addr="),
VariableByteDataModelElement("addr", alphabet)])),
FixedDataModelElement("terminal_str", b" terminal="),
VariableByteDataModelElement("terminal", alphabet),
FixedDataModelElement("res_str", b" res="),
VariableByteDataModelElement("res", alphabet)]
model = SequenceModelElement("model", [
FixedDataModelElement("type_str", b"type="),
FirstMatchModelElement("type", [
SequenceModelElement("execve", [
FixedDataModelElement("execve_str", b"EXECVE msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("argc_str", b"): argc="),
DecimalIntegerValueModelElement("argc", value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement("a0_str", b" a0="),
VariableByteDataModelElement("a0", alphabet),
OptionalMatchModelElement(
"opt1", SequenceModelElement("seq1", [
FixedDataModelElement("a1_str", b" a1="),
VariableByteDataModelElement("a1", alphabet),
OptionalMatchModelElement(
"opt2", SequenceModelElement("seq2", [
FixedDataModelElement("a2_str", b" a2="),
VariableByteDataModelElement("a2", alphabet),
OptionalMatchModelElement(
"opt3", SequenceModelElement("seq3", [
FixedDataModelElement("a3_str", b" a3="),
VariableByteDataModelElement("a3", alphabet),
OptionalMatchModelElement(
"opt4", SequenceModelElement("seq4", [
FixedDataModelElement("a4_str", b" a4="),
VariableByteDataModelElement("a4", alphabet)
])
),
OptionalMatchModelElement(
"opt5", SequenceModelElement("seq5", [
FixedDataModelElement("a5_str", b" a5="),
VariableByteDataModelElement("a5", alphabet)
])
),
OptionalMatchModelElement(
"opt6", SequenceModelElement("seq6", [
FixedDataModelElement("a6_str", b" a6="),
VariableByteDataModelElement("a6", alphabet)
])
),
OptionalMatchModelElement(
"opt7", SequenceModelElement("seq7", [
FixedDataModelElement("a7_str", b" a7="),
VariableByteDataModelElement("a7", alphabet)
])
),
OptionalMatchModelElement(
"opt8", SequenceModelElement("seq8", [
FixedDataModelElement("a8_str", b" a8="),
VariableByteDataModelElement("a8", alphabet)
])
),
OptionalMatchModelElement(
"opt9", SequenceModelElement("seq9", [
FixedDataModelElement("a9_str", b" a9="),
VariableByteDataModelElement("a9", alphabet)
])
),
OptionalMatchModelElement(
"opt10", SequenceModelElement("seq10", [
FixedDataModelElement("a10_str", b" a10="),
VariableByteDataModelElement("a10", alphabet)
])
),
OptionalMatchModelElement(
"opt11", SequenceModelElement("seq11", [
FixedDataModelElement("a11_str", b" a11="),
VariableByteDataModelElement("a11", alphabet)
])
),
OptionalMatchModelElement(
"opt12", SequenceModelElement("seq12", [
FixedDataModelElement("a12_str", b" a12="),
VariableByteDataModelElement("a12", alphabet)
])
),
OptionalMatchModelElement(
"opt13", SequenceModelElement("seq13", [
FixedDataModelElement("a13_str", b" a13="),
VariableByteDataModelElement("a13", alphabet)
])
),
OptionalMatchModelElement(
"opt14", SequenceModelElement("seq14", [
FixedDataModelElement("a14_str", b" a14="),
VariableByteDataModelElement("a14", alphabet)
])
)]))]))]))]),
SequenceModelElement("proctitle", [
FixedDataModelElement("type_str", b"PROCTITLE msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("proctitle_str", b"): proctitle="),
VariableByteDataModelElement("proctitle", alphabet)]),
SequenceModelElement("syscall", [
FixedDataModelElement("msg_str", b"SYSCALL msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("arch_str", b"): arch="),
VariableByteDataModelElement("arch", alphabet),
FixedDataModelElement("syscall_str", b" syscall="),
DecimalIntegerValueModelElement("syscall", value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement("success_str", b" success="),
VariableByteDataModelElement("success", alphabet),
FixedDataModelElement("exit_str", b" exit="),
VariableByteDataModelElement("exit", alphabet),
FixedDataModelElement("a0_str", b" a0="),
VariableByteDataModelElement("a0", alphabet),
FixedDataModelElement("a1_str", b" a1="),
VariableByteDataModelElement("a1", alphabet),
FixedDataModelElement("a2_str", b" a2="),
VariableByteDataModelElement("a2", alphabet),
FixedDataModelElement("a3_str", b" a3="),
VariableByteDataModelElement("a3", alphabet),
FixedDataModelElement("items_str", b" items="),
VariableByteDataModelElement("items", alphabet),
FixedDataModelElement("ppid_str", b" ppid="),
VariableByteDataModelElement("ppid", alphabet),
FixedDataModelElement("pid_str", b" pid="),
VariableByteDataModelElement("pid", alphabet),
FixedDataModelElement("auid_str", b" auid="),
VariableByteDataModelElement("auid", alphabet),
FixedDataModelElement("uid_str", b" uid="),
VariableByteDataModelElement("uid", alphabet),
FixedDataModelElement("gid_str", b" gid="),
VariableByteDataModelElement("gid", alphabet),
FixedDataModelElement("euid_str", b" euid="),
VariableByteDataModelElement("euid", alphabet),
FixedDataModelElement("suid_str", b" suid="),
VariableByteDataModelElement("suid", alphabet),
FixedDataModelElement("fsuid_str", b" fsuid="),
VariableByteDataModelElement("fsuid", alphabet),
FixedDataModelElement("egid_str", b" egid="),
VariableByteDataModelElement("egid", alphabet),
FixedDataModelElement("sgid_str", b" sgid="),
VariableByteDataModelElement("sgid", alphabet),
FixedDataModelElement("fsgid_str", b" fsgid="),
VariableByteDataModelElement("fsgid", alphabet),
FixedDataModelElement("tty_str", b" tty="),
VariableByteDataModelElement("tty", alphabet),
FixedDataModelElement("ses_str", b" ses="),
VariableByteDataModelElement("ses", alphabet),
FixedDataModelElement("comm_str", b" comm="),
VariableByteDataModelElement("comm", alphabet),
FixedDataModelElement("exe_str", b" exe="),
VariableByteDataModelElement("exe", alphabet),
FixedDataModelElement("key_str", b" key="),
VariableByteDataModelElement("key", alphabet)]),
SequenceModelElement("path", [
FixedDataModelElement("msg_str", b"PATH msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("item_str", b"): item="),
DecimalIntegerValueModelElement("item", value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement("name_str", b" name="),
VariableByteDataModelElement("name", alphabet),
FirstMatchModelElement("path", [
SequenceModelElement("nametype", [
FixedDataModelElement("nametype_str", b" nametype="),
VariableByteDataModelElement("nametype", alphabet)]),
SequenceModelElement("inode", [
FixedDataModelElement("inode_str", b" inode="),
DecimalIntegerValueModelElement("inode", value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement("dev_str", b" dev="),
VariableByteDataModelElement("dev", alphabet),
FixedDataModelElement("mode_str", b" mode="),
VariableByteDataModelElement("mode", alphabet),
FixedDataModelElement("ouid_str", b" ouid="),
VariableByteDataModelElement("ouid", alphabet),
FixedDataModelElement("ogid_str", b" ogid="),
VariableByteDataModelElement("ogid", alphabet),
FixedDataModelElement("rdev_str", b" rdev="),
VariableByteDataModelElement("rdev", alphabet),
FixedDataModelElement("nametype_str", b" nametype="),
VariableByteDataModelElement("nametype", alphabet)])])]),
SequenceModelElement("login", [
FixedDataModelElement("msg1_str", b"LOGIN msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("pid_str", b"): pid="),
VariableByteDataModelElement("pid", alphabet),
FixedDataModelElement("uid_str", b" uid="),
VariableByteDataModelElement("uid", alphabet),
FixedDataModelElement("old_auid_str", b" old-auid="),
VariableByteDataModelElement("old_auid", alphabet),
FixedDataModelElement("auid_str", b" auid="),
VariableByteDataModelElement("auid", alphabet),
OptionalMatchModelElement(
"tty", SequenceModelElement("tty", [
FixedDataModelElement("tty_str", b" tty="),
VariableByteDataModelElement("tty", alphabet)])),
FixedDataModelElement("old_ses_str", b" old-ses="),
VariableByteDataModelElement("old_ses", alphabet),
FixedDataModelElement("ses_str", b" ses="),
VariableByteDataModelElement("ses", alphabet),
FixedDataModelElement("res_str", b" res="),
VariableByteDataModelElement("res", alphabet)]),
SequenceModelElement("sockaddr", [
FixedDataModelElement("msg_str", b"SOCKADDR msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("saddr_str", b"): saddr="),
VariableByteDataModelElement("saddr", alphabet)]),
SequenceModelElement("unknown", [
FixedDataModelElement("unknwon_str", b"UNKNOWN["),
DecimalIntegerValueModelElement("unknown_id", value_sign_type=DecimalIntegerValueModelElement.SIGN_TYPE_OPTIONAL),
FixedDataModelElement("msg_str", b"] msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("proctitle_str", b"): proctitle="),
VariableByteDataModelElement("proctitle", alphabet)]),
SequenceModelElement("cred_refr", [
FixedDataModelElement("msg1_str", b"CRED_REFR msg=")] + seq),
SequenceModelElement("user_start", [
FixedDataModelElement("msg1_str", b"USER_START msg=")] + seq),
SequenceModelElement("user_acct", [
FixedDataModelElement("msg1_str", b"USER_ACCT msg=")] + seq),
SequenceModelElement("user_auth", [
FixedDataModelElement("msg1_str", b"USER_AUTH msg=")] + seq),
SequenceModelElement("cred_disp", [
FixedDataModelElement("msg1_str", b"CRED_DISP msg=")] + seq),
SequenceModelElement("service_start", [
FixedDataModelElement("msg1_str", b"SERVICE_START msg=")] + seq),
SequenceModelElement("service_stop", [
FixedDataModelElement("msg1_str", b"SERVICE_STOP msg=")] + seq),
SequenceModelElement("user_end", [
FixedDataModelElement("msg1_str", b"USER_END msg=")] + seq),
SequenceModelElement("user_cmd", [
FixedDataModelElement("msg1_str", b"USER_CMD msg=")] + seq),
SequenceModelElement("cred_acq", [
FixedDataModelElement("msg1_str", b"CRED_ACQ msg=")] + seq),
SequenceModelElement("user_bprm_fcaps", [
FixedDataModelElement("msg1_str", b"BPRM_FCAPS msg=audit("),
DateTimeModelElement("time", b"%s.%f"),
FixedDataModelElement("colon_str", b":"),
DecimalIntegerValueModelElement("id"),
FixedDataModelElement("fver_str", b"): fver="),
VariableByteDataModelElement("fver", alphabet),
FixedDataModelElement("fp_str", b" fp="),
VariableByteDataModelElement("fp", alphabet),
FixedDataModelElement("fi_str", b" fi="),
VariableByteDataModelElement("fi", alphabet),
FixedDataModelElement("fe_str", b" fe="),
VariableByteDataModelElement("fe", alphabet),
FixedDataModelElement("old_pp_str", b" old_pp="),
VariableByteDataModelElement("old_pp", alphabet),
FixedDataModelElement("old_pi_str", b" old_pi="),
VariableByteDataModelElement("old_pi", alphabet),
FixedDataModelElement("old_pe_str", b" old_pe="),
VariableByteDataModelElement("old_pe", alphabet),
FixedDataModelElement("new_pp_str", b" new_pp="),
VariableByteDataModelElement("new_pp", alphabet),
FixedDataModelElement("new_pi_str", b" new_pi="),
VariableByteDataModelElement("new_pi", alphabet),
FixedDataModelElement("new_pe_str", b" new_pe="),
VariableByteDataModelElement("new_pe", alphabet)])])])
return model
