Rule History

SID: 2035032 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2 • Feb 1, 2022, 12:00 PM

Message:

ET USER_AGENTS Suspicious User-Agent (example/1.0)

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (example/1.0)"; flow:to_server,established; http.user_agent; content:"example/1.0"; bsize:11; startswith; reference:url,cybereason.com/blog/strifewater-rat-iranian-apt-moses-staff-adds-new-trojan-to-ransomware-operations; classtype:bad-unknown; sid:2035032; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_02_01, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_01, reviewed_at 2024_06_26;)

Created:

Feb 1, 2022, 12:00 PM

Updated:

Feb 1, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 8, 2025, 9:34 PM

Filename:

rules/emerging-user_agents.rules