alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (Turla CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=dsme.info"; nocase; fast_pattern; isdataat:!1,relative; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; metadata: former_category MALWARE; classtype:trojan-activity; sid:2028944; rev:1; metadata:deployment Perimeter, tag SSL_Malicious_Cert, signature_severity Major, created_at 2019_11_05, malware_family Turla, performance_impact Low, updated_at 2019_11_05;)

Added 2019-11-05 19:14:20 UTC


Topic revision: r1 - 2019-11-06 - TWikiGuest
 
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