alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Successful Roundcube Credential Phish 2022-11-08"; flow:established,to_server; http.request_line; content:"POST|20|/roundcube/process.php|20|"; fast_pattern; http.request_body; content:"aaa="; startswith; content:"&bbb="; distance:0; reference:md5,8b513ba8e9176e585daef4c9e4297b83; classtype:credential-theft; sid:2039755; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_11_08, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_08;)