alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Chthonic Checkin"; flow:established,to_server; urilen:6; http.method; content:"POST"; http.uri; content:"/home/"; http.header_names; to_lowercase; content:!"|0d 0a|accept-"; content:!"|0d 0a|content-type|0d 0a|"; content:!"|0d 0a|referer|0d 0a|"; reference:md5,6afc848066d274d8632c742340560a67; classtype:command-and-control; sid:2017584; rev:10; metadata:created_at 2013_10_12, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_20;)