Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Abused File Sharing Service Domain (qaz .is in TLS SNI)"; flow:established,to_server; tls.sni; bsize:6; content:"qaz.is"; fast_pattern; reference:url,cert.gov.ua/article/6281202; classtype:misc-activity; sid:2057164; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_10_31, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_31;)