Rule History

SID: 2013338 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 3 • Aug 2, 2011, 12:00 PM

Message:

ET RETIRED Bifrose Client Checkin

Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED Bifrose Client Checkin"; flow:established,to_server; content:"|00 00 99 4F B9 74 E2 75 94 0A 5A|"; offset:2; depth:11; classtype:command-and-control; sid:2013338; rev:3; metadata:created_at 2011_08_02, former_category MALWARE, confidence Medium, signature_severity Major, updated_at 2024_12_03;)

Created:

Aug 2, 2011, 12:00 PM

Updated:

Dec 3, 2024, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-retired.rules