Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE CCleaner Backdoor DGA Domain (ab1de19d80ae6 .com) in DNS Lookup"; dns.query; content:"ab1de19d80ae6.com"; nocase; bsize:17; reference:md5,ef694b89ad7addb9a16bb6f26f1efaf7; reference:url,blog.talosintelligence.com/2017/09/avast-distributes-malware.html; classtype:trojan-activity; sid:2031206; rev:4; metadata:attack_target Client_Endpoint, created_at 2020_11_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;)