Rule History

SID: 2011800 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 14 • Oct 13, 2010, 12:00 PM

Message:

ET HUNTING Abnormal User-Agent No space after colon - Likely Hostile

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Abnormal User-Agent No space after colon - Likely Hostile"; flow:established,to_server; http.header; content:"User-Agent|3a|Mozilla"; nocase; fast_pattern; content:!"BlackBerry|3b|"; content:!"PlayBook|3b|"; content:!"Konfabulator"; content:!"masterconn.qq.com"; content:!"QQPCMgr"; classtype:bad-unknown; sid:2011800; rev:14; metadata:created_at 2010_10_13, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Informational, updated_at 2023_07_06;)

Created:

Oct 13, 2010, 12:00 PM

Updated:

Jul 6, 2023, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-hunting.rules