Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to ClickFix Related Inject Domain (cdn .optitc .com)"; dns.query; dotprefix; content:".cdn.optitc.com"; nocase; endswith; reference:url,urlscan.io/result/019609bd-9c94-773f-b3b6-eca6c74ca38e/dom/; reference:url,www.proofpoint.com/us/blog/threat-insight/clipboard-compromise-powershell-self-pwn; classtype:trojan-activity; sid:2061867; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2025_04_24, deployment Perimeter, malware_family ClickFix, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag compromised_website, updated_at 2025_04_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise;)