alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (BrushaLoader? CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=askkkkkkassaa.xyz"; nocase; fast_pattern; isdataat:!1,relative; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; classtype:trojan-activity; sid:2029311; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_01_23, deployment Perimeter, former_category MALWARE, malware_family BrushaLoader?, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2020_10_27;)

Added 2020-10-27 18:18:34 UTC


alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (BrushaLoader? CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=askkkkkkassaa.xyz"; nocase; fast_pattern; isdataat:!1,relative; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; classtype:trojan-activity; sid:2029311; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_01_23, deployment Perimeter, former_category MALWARE, malware_family BrushaLoader?, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2020_01_23;)

Added 2020-08-05 19:17:27 UTC


alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (BrushaLoader? CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=askkkkkkassaa.xyz"; 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:2029311; rev:1; metadata:attack_target Client_Endpoint, deployment Perimeter, tag SSL_Malicious_Cert, signature_severity Major, created_at 2020_01_23, malware_family BrushaLoader?, performance_impact Low, updated_at 2020_01_23;)

Added 2020-01-23 19:24:37 UTC


Topic revision: r1 - 2020-10-27 - TWikiGuest
 
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