alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY Telegram API Cerficate Observed"; flow:established,to_client; tls_cert_subject; content:"CN=api.telegram.org"; fast_pattern; nocase; isdataat:!1,relative; metadata: former_category HUNTING; classtype:misc-activity; sid:2029322; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, deployment Perimeter, signature_severity Informational, created_at 2020_01_27, updated_at 2020_01_27;)

Added 2020-01-27 18:59:27 UTC


Topic revision: r1 - 2020-01-27 - TWikiGuest
 
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