Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING [TW] EvilProxy AiTM Microsoft HTTP HOST Struct M2"; flow:established,to_server; http.host; pcre:"/^[a-f0-9]{8}(?:-[a-f0-9]{4}){3}-[a-f0-9]{12}-[a-f0-9]{8}\./i"; http.uri; content:"/shared/1.0/content/"; startswith; fast_pattern; threshold: type limit, count 1, seconds 30, track by_src; classtype:social-engineering; sid:2038738; rev:1; metadata:created_at 2022_09_06, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_06;)