alert tls $HOME_NET any -> $EXTERNAL_NET any (msg: "ET EXPLOIT_KIT LandUpdate808 Domain in TLS SNI (lkcharles .com)"; flow: established,to_server; tls.sni; bsize: 13; content: "lkcharles.com"; fast_pattern; reference: url,malasada.tech/the-landupdate808-fake-update-variant/; classtype: exploit-kit; sid: 2061153; rev: 1; metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_03_27, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag LandUpdate808, tag compromised_website, updated_at 2025_03_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)