Example #1
0
def fetch():
    retval = {}
    content = retrieve_content(__url__)

    if __check__ in content:
        for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)", content):
            prefix, mask = match.groups()
            mask = int(mask)
            start_int = addr_to_int(prefix) & make_mask(mask)
            end_int = start_int | ((1 << 32 - mask) - 1)
            if 0 <= end_int - start_int <= 1024:
                address = start_int
                while start_int <= address <= end_int:
                    retval[int_to_addr(address)] = (__info__, __reference__)
                    address += 1

    return retval
Example #2
0
def fetch():
    retval = {}
    content = retrieve_content(__url__)

    if __check__ in content:
        for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)", content):
            prefix, mask = match.groups()
            mask = int(mask)
            start_int = addr_to_int(prefix) & make_mask(mask)
            end_int = start_int | ((1 << 32 - mask) - 1)
            if 0 <= end_int - start_int <= 1024:
                address = start_int
                while start_int <= address <= end_int:
                    retval[int_to_addr(address)] = (__info__, __reference__)
                    address += 1

    return retval
Example #3
0
def ipcat_lookup(address):
    if not address:
        return None

    if not _ipcat_cache:
        for name in STATIC_IPCAT_LOOKUPS:
            for value in STATIC_IPCAT_LOOKUPS[name]:
                if "-" in value:
                    start, end = value.split('-')
                    start_int, end_int = addr_to_int(start), addr_to_int(end)
                    current = start_int
                    while start_int <= current <= end_int:
                        _ipcat_cache[int_to_addr(current)] = name
                        current += 1
                else:
                    _ipcat_cache[value] = name

    if address in _ipcat_cache:
        retval = _ipcat_cache[address]
    else:
        retval = ""
        thread = threading.currentThread()
        cursor = _ipcat_cursor.get(thread)

        if cursor is None:
            if os.path.isfile(IPCAT_SQLITE_FILE):
                cursor = _ipcat_cursor[thread] = sqlite3.connect(
                    IPCAT_SQLITE_FILE, isolation_level=None).cursor()
            else:
                return None

        try:
            _ = addr_to_int(address)
            cursor.execute(
                "SELECT name FROM ranges WHERE start_int <= ? AND end_int >= ?",
                (_, _))
            _ = cursor.fetchone()
            retval = str(_[0]) if _ else retval
        except:
            raise ValueError("[x] invalid IP address '%s'" % address)

        _ipcat_cache[address] = retval

    return retval
Example #4
0
def ipcat_lookup(address):
    if not address:
        return None

    if not _ipcat_cache:
        for name in STATIC_IPCAT_LOOKUPS:
            for value in STATIC_IPCAT_LOOKUPS[name]:
                if "-" in value:
                    start, end = value.split('-')
                    start_int, end_int = addr_to_int(start), addr_to_int(end)
                    current = start_int
                    while start_int <= current <= end_int:
                        _ipcat_cache[int_to_addr(current)] = name
                        current += 1
                else:
                    _ipcat_cache[value] = name

    if address in _ipcat_cache:
        retval = _ipcat_cache[address]
    else:
        retval = ""
        thread = threading.currentThread()
        cursor = _ipcat_cursor.get(thread)

        if cursor is None:
            if os.path.isfile(IPCAT_SQLITE_FILE):
                cursor = _ipcat_cursor[thread] = sqlite3.connect(IPCAT_SQLITE_FILE, isolation_level=None).cursor()
            else:
                return None

        try:
            _ = addr_to_int(address)
            cursor.execute("SELECT name FROM ranges WHERE start_int <= ? AND end_int >= ?", (_, _))
            _ = cursor.fetchone()
            retval = str(_[0]) if _ else retval
        except:
            raise ValueError("[x] invalid IP address '%s'" % address)

        _ipcat_cache[address] = retval

    return retval
Example #5
0
def update_trails(force=False, offline=False):
    """
    Update trails from feeds
    """

    success = False
    trails = TrailsDict()
    duplicates = {}

    try:
        if not os.path.isdir(USERS_DIR):
            os.makedirs(USERS_DIR, 0o755)
    except Exception as ex:
        exit(
            "[!] something went wrong during creation of directory '%s' ('%s')"
            % (USERS_DIR, ex))

    _chown(USERS_DIR)

    if config.UPDATE_SERVER:
        print("[i] retrieving trails from provided 'UPDATE_SERVER' server...")
        content = retrieve_content(config.UPDATE_SERVER)
        if not content or content.count(',') < 2:
            print("[x] unable to retrieve data from '%s'" %
                  config.UPDATE_SERVER)
        else:
            with _fopen(config.TRAILS_FILE, "w+b" if six.PY2 else "w+",
                        open if six.PY2 else codecs.open) as f:
                f.write(content)
            trails = load_trails()

    else:
        trail_files = set()
        for dirpath, dirnames, filenames in os.walk(
                os.path.abspath(os.path.join(ROOT_DIR, "trails"))):
            for filename in filenames:
                trail_files.add(
                    os.path.abspath(os.path.join(dirpath, filename)))

        if config.CUSTOM_TRAILS_DIR:
            for dirpath, dirnames, filenames in os.walk(
                    os.path.abspath(
                        os.path.join(
                            ROOT_DIR,
                            os.path.expanduser(config.CUSTOM_TRAILS_DIR)))):
                for filename in filenames:
                    trail_files.add(
                        os.path.abspath(os.path.join(dirpath, filename)))

        if not trails and (
                force or not os.path.isfile(config.TRAILS_FILE) or
            (time.time() - os.stat(config.TRAILS_FILE).st_mtime) >=
                config.UPDATE_PERIOD
                or os.stat(config.TRAILS_FILE).st_size == 0 or any(
                    os.stat(_).st_mtime > os.stat(config.TRAILS_FILE).st_mtime
                    for _ in trail_files)):
            if not config.no_updates:
                print("[i] updating trails (this might take a while)...")
            else:
                print("[i] checking trails...")

            if not offline and (force or config.USE_FEED_UPDATES):
                _ = os.path.abspath(os.path.join(ROOT_DIR, "trails", "feeds"))
                if _ not in sys.path:
                    sys.path.append(_)

                filenames = sorted(glob.glob(os.path.join(_, "*.py")))
            else:
                filenames = []

            _ = os.path.abspath(os.path.join(ROOT_DIR, "trails"))
            if _ not in sys.path:
                sys.path.append(_)

            filenames += [os.path.join(_, "custom")]
            filenames += [
                os.path.join(_, "static")
            ]  # Note: higher priority than previous one because of dummy user trails (FE)

            filenames = [_ for _ in filenames if "__init__.py" not in _]

            if config.DISABLED_FEEDS:
                filenames = [
                    filename for filename in filenames
                    if os.path.splitext(os.path.split(filename)[-1])[0] not in
                    re.split(r"[^\w]+", config.DISABLED_FEEDS)
                ]

            for i in xrange(len(filenames)):
                filename = filenames[i]

                try:
                    module = __import__(
                        os.path.basename(filename).split(".py")[0])
                except (ImportError, SyntaxError) as ex:
                    print(
                        "[x] something went wrong during import of feed file '%s' ('%s')"
                        % (filename, ex))
                    continue

                for name, function in inspect.getmembers(
                        module, inspect.isfunction):
                    if name == "fetch":
                        url = module.__url__  # Note: to prevent "SyntaxError: can not delete variable 'module' referenced in nested scope"

                        print(" [o] '%s'%s" %
                              (url, " " * 20 if len(url) < 20 else ""))
                        sys.stdout.write(
                            "[?] progress: %d/%d (%d%%)\r" %
                            (i, len(filenames), i * 100 // len(filenames)))
                        sys.stdout.flush()

                        if config.DISABLED_TRAILS_INFO_REGEX and re.search(
                                config.DISABLED_TRAILS_INFO_REGEX,
                                getattr(module, "__info__", "")):
                            continue

                        try:
                            results = function()
                            for item in results.items():
                                if item[0].startswith(
                                        "www.") and '/' not in item[0]:
                                    item = [item[0][len("www."):], item[1]]
                                if item[0] in trails:
                                    if item[0] not in duplicates:
                                        duplicates[item[0]] = set(
                                            (trails[item[0]][1], ))
                                    duplicates[item[0]].add(item[1][1])
                                if not (
                                        item[0] in trails and
                                    (any(_ in item[1][0]
                                         for _ in LOW_PRIORITY_INFO_KEYWORDS)
                                     or trails[item[0]][1]
                                     in HIGH_PRIORITY_REFERENCES)) or (
                                         item[1][1] in HIGH_PRIORITY_REFERENCES
                                         and "history" not in item[1][0]
                                     ) or any(
                                         _ in item[1][0]
                                         for _ in HIGH_PRIORITY_INFO_KEYWORDS):
                                    trails[item[0]] = item[1]
                            if not results and not any(
                                    _ in url
                                    for _ in ("abuse.ch", "cobaltstrike")):
                                print(
                                    "[x] something went wrong during remote data retrieval ('%s')"
                                    % url)
                        except Exception as ex:
                            print(
                                "[x] something went wrong during processing of feed file '%s' ('%s')"
                                % (filename, ex))

                try:
                    sys.modules.pop(module.__name__)
                    del module
                except Exception:
                    pass

            # custom trails from remote location
            if config.CUSTOM_TRAILS_URL:
                print(" [o] '(remote custom)'%s" % (" " * 20))
                for url in re.split(r"[;,]", config.CUSTOM_TRAILS_URL):
                    url = url.strip()
                    if not url:
                        continue

                    url = ("http://%s" % url) if "//" not in url else url
                    content = retrieve_content(url)

                    if not content:
                        print(
                            "[x] unable to retrieve data (or empty response) from '%s'"
                            % url)
                    else:
                        __info__ = "blacklisted"
                        __reference__ = "(remote custom)"  # urlparse.urlsplit(url).netloc
                        for line in content.split('\n'):
                            line = line.strip()
                            if not line or line.startswith('#'):
                                continue
                            line = re.sub(r"\s*#.*", "", line)
                            if '://' in line:
                                line = re.search(r"://(.*)", line).group(1)
                            line = line.rstrip('/')

                            if line in trails and any(
                                    _ in trails[line][1]
                                    for _ in ("custom", "static")):
                                continue

                            if '/' in line:
                                trails[line] = (__info__, __reference__)
                                line = line.split('/')[0]
                            elif re.search(r"\A\d+\.\d+\.\d+\.\d+\Z", line):
                                trails[line] = (__info__, __reference__)
                            else:
                                trails[line.strip('.')] = (__info__,
                                                           __reference__)

                        for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)",
                                                 content):
                            prefix, mask = match.groups()
                            mask = int(mask)
                            if mask > 32:
                                continue
                            start_int = addr_to_int(prefix) & make_mask(mask)
                            end_int = start_int | ((1 << 32 - mask) - 1)
                            if 0 <= end_int - start_int <= 1024:
                                address = start_int
                                while start_int <= address <= end_int:
                                    trails[int_to_addr(address)] = (
                                        __info__, __reference__)
                                    address += 1

            print("[i] post-processing trails (this might take a while)...")

            # basic cleanup
            for key in list(trails.keys()):
                if key not in trails:
                    continue

                if config.DISABLED_TRAILS_INFO_REGEX:
                    if re.search(config.DISABLED_TRAILS_INFO_REGEX,
                                 trails[key][0]):
                        del trails[key]
                        continue

                try:
                    _key = key.decode(UNICODE_ENCODING) if isinstance(
                        key, bytes) else key
                    _key = _key.encode("idna")
                    if six.PY3:
                        _key = _key.decode(UNICODE_ENCODING)
                    if _key != key:  # for domains with non-ASCII letters (e.g. phishing)
                        trails[_key] = trails[key]
                        del trails[key]
                        key = _key
                except:
                    pass

                if not key or re.search(r"(?i)\A\.?[a-z]+\Z", key) and not any(
                        _ in trails[key][1] for _ in ("custom", "static")):
                    del trails[key]
                    continue

                if re.search(r"\A\d+\.\d+\.\d+\.\d+\Z", key):
                    if any(
                            _ in trails[key][0]
                            for _ in ("parking site", "sinkhole")
                    ) and key in duplicates:  # Note: delete (e.g.) junk custom trails if static trail is a sinkhole
                        del duplicates[key]

                    if trails[key][0] == "malware":
                        trails[key] = ("potential malware site",
                                       trails[key][1])

                    if config.get("IP_MINIMUM_FEEDS", 3) > 1:
                        if (key not in duplicates or len(duplicates[key]) <
                                config.get("IP_MINIMUM_FEEDS", 3)
                            ) and re.search(r"\b(custom|static)\b",
                                            trails[key][1]) is None:
                            del trails[key]
                            continue

                    if any(int(_) > 255 for _ in key.split('.')):
                        del trails[key]
                        continue

                if trails[key][0] == "ransomware":
                    trails[key] = ("ransomware (malware)", trails[key][1])

                if key.startswith("www.") and '/' not in key:
                    _ = trails[key]
                    del trails[key]
                    key = key[len("www."):]
                    if key:
                        trails[key] = _

                if '?' in key and not key.startswith('/'):
                    _ = trails[key]
                    del trails[key]
                    key = key.split('?')[0]
                    if key:
                        trails[key] = _

                if '//' in key:
                    _ = trails[key]
                    del trails[key]
                    key = key.replace('//', '/')
                    trails[key] = _

                if key != key.lower():
                    _ = trails[key]
                    del trails[key]
                    key = key.lower()
                    trails[key] = _

                if key in duplicates:
                    _ = trails[key]
                    others = sorted(duplicates[key] - set((_[1], )))
                    if others and " (+" not in _[1]:
                        trails[key] = (_[0],
                                       "%s (+%s)" % (_[1], ','.join(others)))

            read_whitelist()

            for key in list(trails.keys()):
                match = re.search(r"\A(\d+\.\d+\.\d+\.\d+)\b", key)
                if check_whitelisted(key) or any(
                        key.startswith(_) for _ in BAD_TRAIL_PREFIXES):
                    del trails[key]
                elif match and (bogon_ip(match.group(1))
                                or cdn_ip(match.group(1))) and not any(
                                    _ in trails[key][0]
                                    for _ in ("parking", "sinkhole")):
                    del trails[key]
                else:
                    try:
                        key.decode("utf8") if hasattr(
                            key, "decode") else key.encode("utf8")
                        trails[key][0].decode("utf8") if hasattr(
                            trails[key][0],
                            "decode") else trails[key][0].encode("utf8")
                        trails[key][1].decode("utf8") if hasattr(
                            trails[key][1],
                            "decode") else trails[key][1].encode("utf8")
                    except UnicodeError:
                        del trails[key]

            try:
                if trails:
                    with _fopen(config.TRAILS_FILE, "w+b" if six.PY2 else "w+",
                                open if six.PY2 else codecs.open) as f:
                        writer = csv.writer(f,
                                            delimiter=',',
                                            quotechar='\"',
                                            quoting=csv.QUOTE_MINIMAL)
                        for trail in trails:
                            row = (trail, trails[trail][0], trails[trail][1])
                            writer.writerow(row)

                    success = True
            except Exception as ex:
                print(
                    "[x] something went wrong during trails file write '%s' ('%s')"
                    % (config.TRAILS_FILE, ex))

            print("[i] update finished%s" % (40 * " "))

            if success:
                print("[i] trails stored to '%s'" % config.TRAILS_FILE)

    return trails
Example #6
0
        def _login(self, params):
            valid = False

            if params.get("username") and params.get("hash") and params.get("nonce"):
                if params.get("nonce") not in DISPOSED_NONCES:
                    DISPOSED_NONCES.add(params.get("nonce"))
                    for entry in (config.USERS or []):
                        entry = re.sub(r"\s", "", entry)
                        username, stored_hash, uid, netfilter = entry.split(':')
                        if username == params.get("username"):
                            try:
                                if params.get("hash") == hashlib.sha256(stored_hash.strip() + params.get("nonce")).hexdigest():
                                    valid = True
                                    break
                            except:
                                if config.SHOW_DEBUG:
                                    traceback.print_exc()

            if valid:
                session_id = os.urandom(SESSION_ID_LENGTH).encode("hex")
                expiration = time.time() + 3600 * SESSION_EXPIRATION_HOURS

                self.send_response(httplib.OK)
                self.send_header(HTTP_HEADER.CONNECTION, "close")
                self.send_header(HTTP_HEADER.SET_COOKIE, "%s=%s; expires=%s; path=/; HttpOnly" % (SESSION_COOKIE_NAME, session_id, time.strftime(HTTP_TIME_FORMAT, time.gmtime(expiration))))

                if netfilter in ("", "0.0.0.0/0"):
                    netfilters = None
                else:
                    addresses = set()
                    netmasks = set()

                    for item in set(re.split(r"[;,]", netfilter)):
                        item = item.strip()
                        if '/' in item:
                            _ = item.split('/')[-1]
                            if _.isdigit() and int(_) >= 16:
                                lower = addr_to_int(item.split('/')[0])
                                mask = make_mask(int(_))
                                upper = lower | (0xffffffff ^ mask)
                                while lower <= upper:
                                    addresses.add(int_to_addr(lower))
                                    lower += 1
                            else:
                                netmasks.add(item)
                        elif '-' in item:
                            _ = item.split('-')
                            lower, upper = addr_to_int(_[0]), addr_to_int(_[1])
                            while lower <= upper:
                                addresses.add(int_to_addr(lower))
                                lower += 1
                        elif re.search(r"\d+\.\d+\.\d+\.\d+", item):
                            addresses.add(item)

                    netfilters = netmasks
                    if addresses:
                        netfilters.add(get_regex(addresses))

                SESSIONS[session_id] = AttribDict({"username": username, "uid": uid, "netfilters": netfilters, "expiration": expiration, "client_ip": self.client_address[0], "client_ua": self.headers.get(HTTP_HEADER.USER_AGENT)})
            else:
                time.sleep(UNAUTHORIZED_SLEEP_TIME)
                self.send_response(httplib.UNAUTHORIZED)
                self.send_header(HTTP_HEADER.CONNECTION, "close")

            self.send_header(HTTP_HEADER.CONTENT_TYPE, "text/plain")
            content = "Login %s" % ("success" if valid else "failed")

            if not subprocess.mswindows:
                try:
                    subprocess.check_output("logger -p auth.info -t \"%s[%d]\" \"%s password for %s from %s port %s\"" % (NAME.lower(), os.getpid(), "Accepted" if valid else "Failed", params.get("username"), self.client_address[0], self.client_address[1]), stderr=subprocess.STDOUT, shell=True)
                except Exception:
                    if config.SHOW_DEBUG:
                        traceback.print_exc()

            return content
Example #7
0
        def _login(self, params):
            valid = False

            if params.get("username") and params.get("hash") and params.get(
                    "nonce"):
                if params.get("nonce") not in DISPOSED_NONCES:
                    DISPOSED_NONCES.add(params.get("nonce"))
                    for entry in (config.USERS or []):
                        entry = re.sub(r"\s", "", entry)
                        username, stored_hash, uid, netfilter = entry.split(
                            ':')
                        if username == params.get("username"):
                            try:
                                if params.get("hash") == hashlib.sha256(
                                        stored_hash.strip() +
                                        params.get("nonce")).hexdigest():
                                    valid = True
                                    break
                            except:
                                if config.SHOW_DEBUG:
                                    traceback.print_exc()

            if valid:
                session_id = os.urandom(SESSION_ID_LENGTH).encode("hex")
                expiration = time.time() + 3600 * SESSION_EXPIRATION_HOURS

                self.send_response(httplib.OK)
                self.send_header(HTTP_HEADER.CONNECTION, "close")
                self.send_header(
                    HTTP_HEADER.SET_COOKIE,
                    "%s=%s; expires=%s; path=/; HttpOnly" %
                    (SESSION_COOKIE_NAME, session_id,
                     time.strftime(HTTP_TIME_FORMAT, time.gmtime(expiration))))

                if netfilter in ("", "0.0.0.0/0"):
                    netfilters = None
                else:
                    addresses = set()
                    netmasks = set()

                    for item in set(re.split(r"[;,]", netfilter)):
                        item = item.strip()
                        if '/' in item:
                            _ = item.split('/')[-1]
                            if _.isdigit() and int(_) >= 16:
                                lower = addr_to_int(item.split('/')[0])
                                mask = make_mask(int(_))
                                upper = lower | (0xffffffff ^ mask)
                                while lower <= upper:
                                    addresses.add(int_to_addr(lower))
                                    lower += 1
                            else:
                                netmasks.add(item)
                        elif '-' in item:
                            _ = item.split('-')
                            lower, upper = addr_to_int(_[0]), addr_to_int(_[1])
                            while lower <= upper:
                                addresses.add(int_to_addr(lower))
                                lower += 1
                        elif re.search(r"\d+\.\d+\.\d+\.\d+", item):
                            addresses.add(item)

                    netfilters = netmasks
                    if addresses:
                        netfilters.add(get_regex(addresses))

                SESSIONS[session_id] = AttribDict({
                    "username":
                    username,
                    "uid":
                    uid,
                    "netfilters":
                    netfilters,
                    "expiration":
                    expiration,
                    "client_ip":
                    self.client_address[0]
                })
            else:
                time.sleep(UNAUTHORIZED_SLEEP_TIME)
                self.send_response(httplib.UNAUTHORIZED)
                self.send_header(HTTP_HEADER.CONNECTION, "close")

            self.send_header(HTTP_HEADER.CONTENT_TYPE, "text/plain")
            content = "Login %s" % ("success" if valid else "failed")

            if not subprocess.mswindows:
                try:
                    subprocess.check_output(
                        "logger -p auth.info -t \"%s[%d]\" \"%s password for %s from %s port %s\""
                        % (NAME.lower(), os.getpid(), "Accepted"
                           if valid else "Failed", params.get("username"),
                           self.client_address[0], self.client_address[1]),
                        stderr=subprocess.STDOUT,
                        shell=True)
                except Exception:
                    if config.SHOW_DEBUG:
                        traceback.print_exc()

            return content
Example #8
0
                            trails[line] = (__info__, __reference__)
                        else:
                            trails[line.strip('.')] = (__info__, __reference__)

                    for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)",
                                             content):
                        prefix, mask = match.groups()
                        mask = int(mask)
                        if mask > 32:
                            continue
                        start_int = addr_to_int(prefix) & make_mask(mask)
                        end_int = start_int | ((1 << 32 - mask) - 1)
                        if 0 <= end_int - start_int <= 1024:
                            address = start_int
                            while start_int <= address <= end_int:
                                trails[int_to_addr(address)] = (__info__,
                                                                __reference__)
                                address += 1

        # basic cleanup
        for key in trails.keys():
            if key not in trails:
                continue
            if config.DISABLED_TRAILS_INFO_REGEX:
                if re.search(config.DISABLED_TRAILS_INFO_REGEX,
                             trails[key][0]):
                    del trails[key]
                    continue
            if not key or re.search(r"\A(?i)\.?[a-z]+\Z", key) and not any(
                    _ in trails[key][1] for _ in ("custom", "static")):
                del trails[key]
Example #9
0
                            else:
                                trails[line.strip('.')] = (__info__,
                                                           __reference__)

                        for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)",
                                                 content):
                            prefix, mask = match.groups()
                            mask = int(mask)
                            if mask > 32:
                                continue
                            start_int = addr_to_int(prefix) & make_mask(mask)
                            end_int = start_int | ((1 << 32 - mask) - 1)
                            if 0 <= end_int - start_int <= 1024:
                                address = start_int
                                while start_int <= address <= end_int:
                                    trails[int_to_addr(address)] = (
                                        __info__, __reference__)
                                    address += 1

            # basic cleanup
            for key in trails.keys():
                if key not in trails:
                    continue
                if config.DISABLED_TRAILS_INFO_REGEX:
                    if re.search(config.DISABLED_TRAILS_INFO_REGEX,
                                 trails[key][0]):
                        del trails[key]
                        continue

                try:
                    _key = key.decode("utf8").encode("idna")
Example #10
0
                        elif re.search(r"\A\d+\.\d+\.\d+\.\d+\Z", line):
                            trails[line] = (__info__, __reference__)
                        else:
                            trails[line.strip('.')] = (__info__, __reference__)

                        for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)", content):
                            prefix, mask = match.groups()
                            mask = int(mask)
                            if mask > 32:
                                continue
                            start_int = addr_to_int(prefix) & make_mask(mask)
                            end_int = start_int | ((1 << 32 - mask) - 1)
                            if 0 <= end_int - start_int <= 1024:
                                address = start_int
                                while start_int <= address <= end_int:
                                    trails[int_to_addr(address)] = (__info__, __reference__)
                                    address += 1

        # basic cleanup
        for key in trails.keys():
            if key not in trails:
                continue
            if not key or re.search(r"\A(?i)\.?[a-z]+\Z", key) and not any(_ in trails[key][1] for _ in ("custom", "static")):
                del trails[key]
                continue
            if re.search(r"\A\d+\.\d+\.\d+\.\d+\Z", key):
                if any(_ in trails[key][0] for _ in ("parking site", "sinkhole")) and key in duplicates:
                    del duplicates[key]
                if trails[key][0] == "malware":
                    trails[key] = ("potential malware site", trails[key][1])
            if trails[key][0] == "ransomware":
Example #11
0
                            elif re.search(r"\A\d+\.\d+\.\d+\.\d+\Z", line):
                                trails[line] = (__info__, __reference__)
                            else:
                                trails[line.strip('.')] = (__info__, __reference__)

                        for match in re.finditer(r"(\d+\.\d+\.\d+\.\d+)/(\d+)", content):
                            prefix, mask = match.groups()
                            mask = int(mask)
                            if mask > 32:
                                continue
                            start_int = addr_to_int(prefix) & make_mask(mask)
                            end_int = start_int | ((1 << 32 - mask) - 1)
                            if 0 <= end_int - start_int <= 1024:
                                address = start_int
                                while start_int <= address <= end_int:
                                    trails[int_to_addr(address)] = (__info__, __reference__)
                                    address += 1

            # basic cleanup
            for key in trails.keys():
                if key not in trails:
                    continue
                if config.DISABLED_TRAILS_INFO_REGEX:
                    if re.search(config.DISABLED_TRAILS_INFO_REGEX, trails[key][0]):
                        del trails[key]
                        continue

                try:
                    _key = key.decode("utf8").encode("idna")
                    if _key != key:  # for domains with non-ASCII letters (e.g. phishing)
                        trails[_key] = trails[key]