alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (TinyNuke Variant CnC) 2020-02-09"; flow:established,to_client; tls.cert_subject; content:"C=US, CN=thoughtlibrary.top/L=new york/O=new york/OU=new york/ST=new york"; content:"admin@thoughtlibrary.top"; fast_pattern; reference:url,twitter.com/P3pperP0tts/status/1226493807061094406; classtype:domain-c2; sid:2029400; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2020_02_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2025_07_24, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;)