alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Tordal/Hancitor/Chanitor Checkin"; flow:to_server,established; http.method; content:"POST"; nocase; http.request_body; content:"GUID="; depth:5; fast_pattern; content:"&BUILD="; distance:0; content:"&INFO="; distance:0; content:"&IP="; distance:0; content:"&TYPE="; distance:0; http.header_names; content:!"Referer|0d 0a|"; classtype:command-and-control; sid:2034127; rev:6; metadata:created_at 2016_04_28, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_13;)