Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE CCleaner Backdoor DGA Domain (ab253af862bb0 .com) Apr 2018"; dns.query; content:"ab253af862bb0.com"; fast_pattern; nocase; bsize:17; reference:url,www.crowdstrike.com/blog/protecting-software-supply-chain-deep-insights-ccleaner-backdoor/; classtype:trojan-activity; sid:2024819; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_10_09, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_13;)