alert dns $HOME_NET any -> any any (msg:"ET MALWARE DeviceManager CnC DNS Communication - Status Update"; dns.query; content:"i|2d|"; startswith; content:"|2d|"; distance:16; within:1; content:"7c57696e646f777320"; fast_pattern; distance:0; content:".microsoft.com"; endswith; reference:url,socradar.io/blog/doublecup-clickfix-loader-devicemanager-rats/; classtype:trojan-activity; sid:2071784; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_08_25, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag c2, updated_at 2026_08_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)