Versions (4)
Version DetailsCurrent
Rev: 2 • Mar 27, 2020, 12:00 PMET USER_AGENTS Suspicious User Agent (explorersvc)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User Agent (explorersvc)"; flow:established,to_server; http.user_agent; bsize:11; content:"explorersvc"; classtype:bad-unknown; sid:2029749; rev:2; metadata:attack_target Client_Endpoint, created_at 2020_03_27, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;)
Mar 27, 2020, 12:00 PM
Aug 19, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 19, 2025, 10:35 PM
rules/emerging-user_agents.rules