Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query to Earth Krahang APT Domain (security-microsoft .net)"; dns.query; bsize:22; content:"security-microsoft.net"; nocase; reference:url,www.trendmicro.com/en_us/research/24/c/earth-krahang.html; classtype:trojan-activity; sid:2051847; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_03_28, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_28;)