alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Generic Bot Checkin"; flow:established,to_server; http.method; content:"POST"; nocase; http.uri; content:"/gateway/index"; http.request_body; content:"botver="; content:"&build="; content:"&profile="; reference:md5,be3aed34928cb826030b462279a1c453; classtype:command-and-control; sid:2013168; rev:7; metadata:created_at 2011_07_01, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_28;)