alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Observed External IP Lookup SSL Cert"; flow:from_server,established; content:"|0e|iplocation.com"; nocase; fast_pattern; tls_cert_issuer; content:"C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3"; metadata: former_category POLICY; classtype:trojan-activity; sid:2026882; rev:1; metadata:attack_target Client_Endpoint, deployment Perimeter, tag IP_address_lookup_website, signature_severity Minor, created_at 2019_02_05, performance_impact Low, updated_at 2019_02_05;)

Added 2019-02-05 19:01:19 UTC



This topic: Main > 2026882
Topic revision: r1 - 2019-02-06 - TWikiGuest
 
This site is powered by the TWiki collaboration platform Powered by Perl This site is powered by the TWiki collaboration platformCopyright © Emerging Threats