alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (Gozi CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=poladidlei.website"; nocase; isdataat:!1,relative; fast_pattern; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; metadata: former_category TROJAN; reference:url,sslbl.abuse.ch/ssl-certificates/sha1/008d33ce2e5d3583d8ebb115f72b250975757018/; classtype:trojan-activity; sid:2027086; rev:2; 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_03_18, malware_family Gozi, performance_impact Low, updated_at 2019_03_18;)

Added 2019-03-18 18:28:52 UTC


Topic revision: r1 - 2019-03-18 - TWikiGuest
 
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