Rule History

alert dns $HOME_NET any -> any any (msg:"ET CURRENT_EVENTS Observed DNS Query to Known Malvertising Domain (tissat .us)"; dns.query; dotprefix; content:".tissat.us"; nocase; endswith; reference:url,www.malwarebytes.com/blog/threat-intelligence/2022/09/microsoft-edges-news-feed-pushes-tech-support-scam; classtype:trojan-activity; sid:2038893; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_09_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_05, reviewed_at 2023_10_05;)