alert tls $HOME_NET any -> any any (msg:"ET EXPLOIT_KIT LandUpdate808 Domain (yorkci .com) in TLS SNI"; flow:established,to_server; tls.sni; bsize:10; content:"yorkci.com"; fast_pattern; nocase; reference:url,malasada.tech/the-landupdate808-fake-update-variant/; reference:url,malasada.tech/the-landupdate808-fake-update-variant; classtype:exploit-kit; sid:2065933; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_11_27, deployment Perimeter, confidence High, signature_severity Minor, tag Exploit_Kit, tag LandUpdate808, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)