Versions (4)
Version DetailsCurrent
Rev: 1 • Feb 15, 2024, 12:00 PMET INFO Observed vk .com API Domain (api .vk .com in TLS SNI)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed vk .com API Domain (api .vk .com in TLS SNI)"; flow:established,to_server; tls.sni; bsize:10; content:"api.vk.com"; fast_pattern; threshold:type limit, count 1, seconds 300, track by_src; classtype:misc-activity; sid:2050884; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_02_15, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_15;)
Feb 15, 2024, 12:00 PM
Feb 15, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 14, 2025, 9:34 PM
rules/emerging-info.rules