alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Observed Malicious SSL Cert (MirrorThief? CnC?)"; flow:from_server,established; tls_cert_subject; content:"CN=jqueryextd.at"; 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,blog.netlab.360.com/xin-yong-qia-shu-ju-xie-lou-chi-xu-jin-xing-zhong/; classtype:trojan-activity; sid:2027355; rev:1; metadata:deployment Perimeter, tag SSL_Malicious_Cert, signature_severity Major, created_at 2019_05_15, malware_family MirrorThief?, performance_impact Low, updated_at 2019_05_15;)

Added 2019-05-15 18:18:08 UTC


Topic revision: r1 - 2019-05-15 - TWikiGuest
 
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