Rule History

SID: 2013455 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 5 • Aug 24, 2011, 12:00 PM

Message:

ET USER_AGENTS Suspicious User-Agent (GUIDTracker)

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (GUIDTracker)"; flow:to_server,established; http.user_agent; content:"GUIDTracker"; depth:11; reference:md5,7a8807f4de0999dba66a8749b2366def; classtype:trojan-activity; sid:2013455; rev:5; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2011_08_24, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2020_10_17;)

Created:

Aug 24, 2011, 12:00 PM

Updated:

Oct 17, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-user_agents.rules