Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious Custom Firefox UA Observed (Firefox...)"; flow:established,to_server; http.user_agent; content:"Firefox..."; depth:10; fast_pattern; endswith; classtype:bad-unknown; sid:2027686; rev:3; metadata:created_at 2019_07_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)