alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE W32/Prinimalka Get Task CnC Beacon"; flow:established,to_server; content:"/command?user_id="; fast_pattern; http_uri; content:"&version_id="; http_uri; content:"&crc="; http_uri; reference:url,ddos.arbornetworks.com/2012/10/trojan-prinimalka-bits-and-pieces/; classtype:command-and-control; sid:2016047; rev:2; metadata:attack_target Client_Endpoint, created_at 2012_12_18, 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;)