alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Banker/Banbra Variant POST via x-www-form-urlencoded"; flow:established,to_server; http.method; content:"POST"; nocase; http.uri; content:".php"; http.header; content:"Content-Type|3a20|application/x-www-form-urlencoded|0D0A|Content-Length|3A20|"; nocase; http.request_body; content:"from="; nocase; content:"|26|FromMail="; nocase; content:"|26|destino="; nocase; content:"|26|assunto="; nocase; content:"|26|mensagem="; fast_pattern; nocase; classtype:trojan-activity; sid:2008331; rev:9; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_21;)