alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Likely Koobface Beaconing (getexe)"; flow:to_server,established; http.method; content:"GET"; nocase; http.uri; content:"?getexe="; content:".exe"; classtype:trojan-activity; sid:2010700; rev:7; metadata:attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2020_04_21, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)