Rule History

SID: 2013395 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4 • Aug 10, 2011, 12:00 PM

Message:

ET USER_AGENTS Suspicious User-Agent _updater_agent

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent _updater_agent"; flow:established,to_server; http.header; content:"User-Agent|3A 20|_updater_agent"; classtype:trojan-activity; sid:2013395; rev:4; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2011_08_10, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2020_08_13;)

Created:

Aug 10, 2011, 12:00 PM

Updated:

Aug 13, 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