alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET PHISHING Successful RBFCU Credential Phish 2022-10-31";
flow:established,to_server;
http.request_line;
content:"POST|20|/rbfcu"; startswith; fast_pattern;
http.uri;
content:"/userlogin.php"; endswith;
http.request_body;
content:"username="; startswith;
content:"&password="; distance:0;
reference:md5,56191863d2a45e93d84d647fc034927c;
classtype:credential-theft;
sid:2039608; rev:1;
metadata:attack_target Client_Endpoint, created_at 2022_10_31, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_31;
)