alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING L33bo Phishing Kit - Successful Credential Phish M4 2016-03-29"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/vbv.php?&sessionid="; startswith; fast_pattern; content:"&securessl="; distance:0; http.header; content:"/Checkcc.php?&sessionid="; http.cookie; content:"PHPSESSID"; classtype:credential-theft; sid:2032283; rev:6; metadata:attack_target Client_Endpoint, created_at 2016_03_29, deployment Perimeter, confidence Medium, signature_severity Critical, tag Phishing, updated_at 2024_04_13, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)