Rule History

SID: 2030835 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Sep 3, 2020, 12:00 PM

Message:

ET USER_AGENTS Microsoft Malware Protection User-Agent Observed

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Microsoft Malware Protection User-Agent Observed"; flow:to_server,established; http.user_agent; content:"MpCommunication"; depth:15; classtype:misc-activity; sid:2030835; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_09_03, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_04;)

Created:

Sep 3, 2020, 12:00 PM

Updated:

Sep 4, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 16, 2025, 8:36 PM

Filename:

rules/emerging-user_agents.rules