alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Observed TOAD Domain (mshelp58 .us in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".mshelp58.us"; endswith; fast_pattern; reference:url,community.emergingthreats.net/t/et-toad-rules-response-guidance/2663; classtype:exploit-kit; sid:2048211; rev:6; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_09_21, deployment Perimeter, former_category PHISHING, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag compromised_website, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_24, reviewed_at 2023_11_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)