Rule History

alert dns $HOME_NET any -> any any (msg:"ET POLICY dnslog .cn Observed in DNS Query"; dns.query; dotprefix; content:".dnslog.cn"; nocase; endswith; classtype:domain-c2; sid:2034669; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_12_11, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Informational, updated_at 2021_12_11;)