idstools 0.4.4

IDS Utility Library

py-idstools is a collection of Python libraries for working with IDS systems (typically Snort and Suricata).

Features

• Snort/Suricata unified2 log file reading.

• Continuous unified2 directory spool reading with bookmarking (a’la Barnyard2).

• Parser and mapping for classification.config.

• Parser and mapping for gen-msg.map and sid-msg.map.

• Useful utility programs.

Programs

• u2json - Convert unified2 files or spool directories to JSON.

• gensidmsgmap - Easily create a sid-msg.map file from rule files, directories or a rule tarball.

Requirements

• Python 2.6 or 2.7; Python 3.3 works but is not as well tested.

• Currently only tested on Linux.

Examples

Reading a Unified2 Spool Directory

The following code snippet will “tail” a unified log directory aggregating records into events:

from idstools import unified2

reader = unified2.SpoolEventReader("/var/log/snort",
    "unified2.log", tail=True)
for event in reader:
    print(event)

Documentation

Further documentation is located at http://idstools.readthedocs.org.

Changelog

0.4.4

• Fix reading of growing file on OS X.

• Fix error in parsing decoder rules introduced in 0.4.3.

0.4.3

• Make the rule direction an accessible field of the rule object.

0.4.2

• Fix issue loading signature map files (GitHub issue #2).

0.4.1

• Fix IPv6 address unpacking.

• In u2json, if the protocol number can’t be converted to a string, encode the number as a string for a consistent JSON data type.

0.4.0

• New tool, u2json to convert unified2 files to JSON.

0.3.1

• Support the new appid unified2 event types introduced in Snort 2.9.7.0.alpha.