Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Malicious Domain (significant-adopted-bearing-own .trycloudflare .com)"; dns.query; bsize:49; content:"significant-adopted-bearing-own.trycloudflare.com"; nocase; reference:md5,b24d144f391593cc76cc7cf14449c943; classtype:trojan-activity; sid:2065644; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_11_04, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_11_04;)