alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Tordal/Hancitor/Chanitor Checkin"; flow:established,to_server; http.method; content:"POST"; nocase; http.request_body; content:"GUID="; startswith; fast_pattern; content:"&BUILD="; distance:0; content:"&INFO="; distance:0; content:"&IP="; distance:0; content:"&TYPE="; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; classtype:command-and-control; sid:2034127; rev:9; metadata:created_at 2016_04_28, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_02;)