alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED W32/Tepfer.InfoStealer CnC Beacon"; flow:established,to_server; content:"POST"; http_method; content:"/scan.php"; fast_pattern:only; http_uri; content:!"Referer|3A|"; http_header; content:"="; http_client_body; depth:10; reference:md5,6e715fe727f927bc76e923d2e524d1e3; classtype:command-and-control; sid:2018415; rev:3; metadata:attack_target Client_Endpoint, created_at 2014_04_24, deployment Perimeter, signature_severity Major, tag c2, updated_at 2019_07_26, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)