Rule History

SID: 2033665 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1 • Aug 4, 2021, 12:00 PM

Message:

ET USER_AGENTS sysWeb User-Agent

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS sysWeb User-Agent"; flow:established,to_server; http.user_agent; content:"|20|sysWeb/"; fast_pattern; reference:md5,3f295401fa59a32ff7a11551551ec607; reference:url,twitter.com/starsSk87264403/status/1422543872853426198; classtype:trojan-activity; sid:2033665; rev:1; metadata:created_at 2021_08_04, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_04;)

Created:

Aug 4, 2021, 12:00 PM

Updated:

Aug 4, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 9, 2025, 9:34 PM

Filename:

rules/emerging-user_agents.rules