Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed URL Shortening Service Domain (vk .cc in TLS SNI)"; flow:established,to_server; tls.sni; content:"vk.cc"; bsize:5; fast_pattern; classtype:misc-activity; sid:2038649; rev:3; metadata:attack_target Client_Endpoint, created_at 2022_08_29, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_26;)