Rule History

SID: 2000352 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 10 • Jul 30, 2010, 12:00 PM

Message:

ET MALWARE IRC DNS request on non-standard port

Rule:

alert tcp $HOME_NET any -> $EXTERNAL_NET !6661:6668 (msg:"ET MALWARE IRC DNS request on non-standard port"; flow:to_server,established; content:"USERHOST "; nocase; depth:9; classtype:policy-violation; sid:2000352; rev:10; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26, reviewed_at 2024_09_16;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Dec 16, 2025, 10:34 PM

Filename:

rules/emerging-malware.rules