alert dns $HOME_NET any -> any any (msg:"ET EXPLOIT_KIT DNS Query to TOAD Domain (helpset123 .site)"; dns.query; dotprefix; content:".helpset123.site"; nocase; endswith; reference:url,proofpoint.com/us/blog/threat-insight/caught-beneath-landline-411-telephone-oriented-attack-delivery; reference:url,proofpoint.com/us/blog/threat-insight/remote-monitoring-and-management-rmm-tooling-increasingly-attackers-first-choice; reference:url,community.emergingthreats.net/t/et-toad-rules-response-guidance/2663; classtype:exploit-kit; sid:2048560; rev:5; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_10_13, 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 2024_01_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)