alert dns $HOME_NET any -> any any (msg:"ET MALWARE plain-crypto-js RAT C2 Domain in DNS Lookup (sfrclak .com)"; dns.query; bsize:11; content:"sfrclak.com"; fast_pattern; nocase; reference:url,opensourcemalware.com/blog/axios-compromised; classtype:domain-c2; sid:2068515; rev:2; metadata:attack_target Client_Endpoint, created_at 2026_04_01, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, updated_at 2026_04_09, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:src_ip;)