Rule History

SID: 2012249 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 5 • Feb 2, 2011, 12:00 PM

Message:

ET USER_AGENTS Suspicious Win32 User Agent

Rule:

alert http $HOME_NET 1024: -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious Win32 User Agent"; flow:to_server,established; http.header; content:"User-Agent|3a 20|Win32"; nocase; classtype:trojan-activity; sid:2012249; rev:5; metadata:created_at 2011_02_02, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_23;)

Created:

Feb 2, 2011, 12:00 PM

Updated:

Apr 23, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Jan 6, 2026, 10:34 PM

Filename:

rules/emerging-user_agents.rules