Snort rule update for May 13, 2021

The newest SNORTⓇ rule update is out now. Cisco Talos released this ruleset providing additional protection against the CrimsonRAT malware.

The Transparent Tribe APT, as highlighted by Talos researchers, recently added CrimsonRAT to their arsenal as they began targeting more government contractors. 

Here's a breakdown of Thursday's rule release:

Shared object rules	Modified shared object rules	New rules	Modified rules
0	0	19	12

There were no changes made to the snort.conf in this release.

Talos' rule release:

Talos has added and modified multiple rules in the file-pdf, malware-cnc, os-other, server-apache and server-webapp rule sets to provide coverage for emerging threats from these technologies.

You can subscribe to Talos' newest rule detection functionality for as low as $29 a year with a personal account. Be sure and see our business pricing as well here. The Snort 3 release is also here after years of development and improvements. Upgrade here.