Ejemplo n.º 1
0
    def test3receive_match_in_time_without_auto_include_flag(self):
        """This test case checks if log_atoms are accepted as expected with the auto_include_flag=False."""
        description = 'test3newMatchIdValueComboDetectorTest'
        output_stream_empty_results = [True, False, True, False, True, False, True, True, False, True, False, True, True, True, False,
                                       False, False, True, False, True, False]
        id_dict_current_results = [
            {1: {'parser/type/syscall/syscall': 1}}, {}, {2: {'parser/type/syscall/syscall': 2}}, {},
            {3: {'parser/type/syscall/syscall': 3}}, {}, {100: {'parser/type/syscall/syscall': 1}},
            {100: {'parser/type/syscall/syscall': 1}, 4: {'parser/type/syscall/syscall': 1}}, {100: {'parser/type/syscall/syscall': 1}},
            {100: {'parser/type/syscall/syscall': 1}, 5: {'parser/type/path/name': 'two'}}, {100: {'parser/type/syscall/syscall': 1}},
            {100: {'parser/type/syscall/syscall': 1}, 6: {'parser/type/syscall/syscall': 4}},
            {100: {'parser/type/syscall/syscall': 1}, 6: {'parser/type/syscall/syscall': 4}, 7: {'parser/type/path/name': 'five'}},
            {100: {'parser/type/syscall/syscall': 1}, 6: {'parser/type/syscall/syscall': 4}, 7: {'parser/type/path/name': 'five'},
                8: {'parser/type/syscall/syscall': 6}},
            {100: {'parser/type/syscall/syscall': 1}, 7: {'parser/type/path/name': 'five'}, 8: {'parser/type/syscall/syscall': 6}},
            {100: {'parser/type/syscall/syscall': 1}, 8: {'parser/type/syscall/syscall': 6}}, {100: {'parser/type/syscall/syscall': 1}},
            {100: {'parser/type/syscall/syscall': 1}, 9: {'parser/type/syscall/syscall': 2}}, {100: {'parser/type/syscall/syscall': 1}},
            {100: {'parser/type/syscall/syscall': 1}, 10: {'parser/type/path/name': 'one'}}, {100: {'parser/type/syscall/syscall': 1}}]
        id_dict_old_results = [{}] * 21
        min_allowed_time_diff = 0.1
        log_atoms = []
        for line in self.log_lines:
            t = time.time()
            log_atoms.append(
                LogAtom(line, ParserMatch(self.parsing_model.get_match_element('parser', MatchContext(line))), t, self.__class__.__name__))
        new_match_id_value_combo_detector = NewMatchIdValueComboDetector(self.aminer_config, [
            'parser/type/path/name', 'parser/type/syscall/syscall'], [self.stream_printer_event_handler],
            id_path_list=['parser/type/path/id', 'parser/type/syscall/id'], min_allowed_time_diff=min_allowed_time_diff,
            auto_include_flag=False, allow_missing_values_flag=True, persistence_id='audit_type_path', output_log_line=False)
        self.analysis_context.register_component(new_match_id_value_combo_detector, description)

        for i, log_atom in enumerate(log_atoms):
            self.assertTrue(new_match_id_value_combo_detector.receive_atom(log_atom))
            self.assertEqual(self.output_stream.getvalue() == "", output_stream_empty_results[i], log_atom.raw_data)
            self.assertEqual(new_match_id_value_combo_detector.id_dict_current, id_dict_current_results[i])
            self.assertEqual(new_match_id_value_combo_detector.id_dict_old, id_dict_old_results[i])
            self.assertEqual(new_match_id_value_combo_detector.known_values, [])
            self.reset_output_stream()
    def run_new_match_id_value_combo_detector(self, min_allowed_time_diff):
        log_lines = [
            b'type=SYSCALL msg=audit(1580367384.000:1): arch=c000003e syscall=1 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367385.000:1): item=0 name="one" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 '
            b'rdev=00:00 nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367386.000:2): arch=c000003e syscall=2 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367387.000:2): item=0 name="two" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00 '
            b'nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367388.000:3): arch=c000003e syscall=3 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367389.000:3): item=0 name="three" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00'
            b' nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367388.500:100): arch=c000003e syscall=1 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=SYSCALL msg=audit(1580367390.000:4): arch=c000003e syscall=1 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367391.000:4): item=0 name="one" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00 '
            b'nametype=NORMAL',
            b'type=PATH msg=audit(1580367392.000:5): item=0 name="two" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00 '
            b'nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367393.000:5): arch=c000003e syscall=2 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=SYSCALL msg=audit(1580367394.000:6): arch=c000003e syscall=4 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367395.000:7): item=0 name="five" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00 '
            b'nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367396.000:8): arch=c000003e syscall=6 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367397.000:6): item=0 name="four" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00 '
            b'nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367398.000:7): arch=c000003e syscall=5 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367399.000:8): item=0 name="six" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 rdev=00:00 '
            b'nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367400.000:9): arch=c000003e syscall=2 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 a3=4f '
            b'items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 tty=(none) '
            b'ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)',
            b'type=PATH msg=audit(1580367401.000:9): item=0 name="three" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 '
            b'rdev=00:00 nametype=NORMAL',
            b'type=PATH msg=audit(1580367402.000:10): item=0 name="one" inode=790106 dev=fe:01 mode=0100666 ouid=1000 ogid=1000 '
            b'rdev=00:00 nametype=NORMAL',
            b'type=SYSCALL msg=audit(1580367403.000:10): arch=c000003e syscall=3 success=yes exit=21 a0=7ffda5863060 a1=0 a2=1b6 '
            b'a3=4f items=1 ppid=22913 pid=13187 auid=4294967295 uid=33 gid=33 euid=33 suid=33 fsuid=33 egid=33 sgid=33 fsgid=33 '
            b'tty=(none) ses=4294967295 comm="apache2" exe="/usr/sbin/apache2" key=(null)'
        ]
        parsing_model = FirstMatchModelElement('type', [
            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'),
                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')
            ])
        ])

        results = [None] * self.iterations
        avg = 0
        z = 0
        while z < self.iterations:
            i = 0
            new_match_id_value_combo_detector = NewMatchIdValueComboDetector(
                self.aminer_config,
                ['parser/type/path/name', 'parser/type/syscall/syscall'],
                [self.stream_printer_event_handler],
                id_path_list=['parser/type/path/id', 'parser/type/syscall/id'],
                min_allowed_time_diff=min_allowed_time_diff,
                auto_include_flag=False,
                allow_missing_values_flag=True,
                persistence_id='audit_type_path',
                output_log_line=False)
            t = time.time()
            seconds = time.time()
            i = 0
            while int(time.time() - seconds) < self.waiting_time:
                p = process_time()
                r = random.randint(0, len(log_lines) - 1)
                seconds = seconds + process_time() - p

                # this code just creates some data to be able to compare with other analysis components.
                decimal_integer_value_me = DecimalIntegerValueModelElement(
                    'd', DecimalIntegerValueModelElement.SIGN_TYPE_NONE,
                    DecimalIntegerValueModelElement.PAD_TYPE_NONE)
                match_context = MatchContext(str(i % 100).encode())
                _match_element = decimal_integer_value_me.get_match_element(
                    'integer', match_context)
                ########################################################################################

                line = log_lines[r]
                log_atom = LogAtom(
                    line,
                    ParserMatch(
                        parsing_model.get_match_element(
                            'parser', MatchContext(line))), t,
                    self.__class__.__name__)
                new_match_id_value_combo_detector.receive_atom(log_atom)
                i = i + 1
            results[z] = i
            z = z + 1
            avg = avg + i
        avg = avg / self.iterations
        type(self).result = self.result + self.result_string % (
            new_match_id_value_combo_detector.__class__.__name__, avg, results,
            '%.2f seconds min_allowed_time_diff.' % min_allowed_time_diff)