evt2sigma

Log Entry to Sigma Rule Converter

What it does

It takes a log entry from a file and tries to create a Sigma rule. It is optimized for the XML format of Windows EVTX event logs but can be easily modified to support more log formats by adding a new regular expression for the respective log type.

Status

The current state is "alpha". It's more like a public POC so that others can learn and extend.

Usage

usage: evt2sigma.py [-h] [-f file] [-o out-file] [-fc field-count] [--debug]
                    [--trace] [-a] [-r] [-l] [-t] [-d] [-p] [-s] [-c]

Event 2 Sigma Converter

optional arguments:
  -h, --help       show this help message and exit
  -f file          Read the log entry from a file
  -o out-file      Write rule to an output file
  -fc field-count  use the top X fields
  --debug          Debug output
  --trace          Trace output

Fields:
  -a               Author name
  -r               Reference
  -l               Level
  -t               Title
  -d               Description
  -p               Product (e.g. windows, linux)
  -s               Service (e.g. security, sysmon)
  -c               Category (e.g. proxy)

Screenshot