Rule History

SID: 2003380 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 13 • Jul 30, 2010, 12:00 PM

Message:

ET USER_AGENTS Suspicious User-Agent - Possible Trojan Downloader (ver18/ver19 etc)

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent - Possible Trojan Downloader (ver18/ver19 etc)"; flow:established,to_server; http.user_agent; content:")ver"; fast_pattern; pcre:"/\)ver\d/"; classtype:trojan-activity; sid:2003380; rev:13; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence Medium, signature_severity Major, tag User_Agent, tag Trojan_Downloader, updated_at 2020_08_13;)

Created:

Jul 30, 2010, 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