Rule History

SID: 2038731 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1 • Sep 2, 2022, 12:00 PM

Message:

ET USER_AGENTS Suspicious User-Agent (xfilesreborn)

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (xfilesreborn)"; flow:to_server,established; http.user_agent; content:"xfilesreborn"; startswith; fast_pattern; reference:md5,ba542a8d1d21e2016ade340fdc08d1a4; classtype:trojan-activity; sid:2038731; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_09_02, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_02, reviewed_at 2024_05_08;)

Created:

Sep 2, 2022, 12:00 PM

Updated:

Sep 2, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 1, 2025, 8:35 PM

Filename:

rules/emerging-user_agents.rules