Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed TA453 Related URL Shortening Service  TLS SNI (litby .us)"; flow:established,to_server; tls.sni; content:"litby.us"; bsize:8; fast_pattern; reference:url,research.checkpoint.com/2022/check-point-research-exposes-an-iranian-phishing-campaign-targeting-former-israeli-foreign-minister-former-us-ambassador-idf-general-and-defense-industry-executives/; classtype:bad-unknown; sid:2035284; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_02_24, deployment Perimeter, malware_family TA453, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_02_24;)