Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to LIGHTSHOW Domain (fainstec .com)"; dns.query; dotprefix; content:".fainstec.com"; nocase; endswith; reference:url,www.mandiant.com/resources/blog/lightshow-north-korea-unc2970; classtype:trojan-activity; sid:2044604; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_03_14, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_12, reviewed_at 2023_11_17;)