alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (Various CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=nlgyscgika"; nocase; fast_pattern; isdataat:!1,relative; tls_cert_issuer; content:"CN=nlgyscgika"; metadata: former_category TROJAN; classtype:trojan-activity; sid:2027753; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, tag SSL_Malicious_Cert, signature_severity Major, created_at 2019_07_23, performance_impact Low, updated_at 2019_07_23;)

Added 2019-07-23 18:52:03 UTC

Topic revision: r1 - 2019-07-23 - TWikiGuest
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