alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Liftoh.Downloader Images CnC Beacon"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/images/gx.php"; reference:url,www.secureworks.com/cyber-threat-intelligence/threats/spam-campaign-delivers-liftoh-downloader/; classtype:command-and-control; sid:2017868; rev:3; metadata:attack_target Client_Endpoint, created_at 2013_12_17, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_04_27, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)