alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cobalt Strike Related Domain in DNS Lookup"; dns.query; dotprefix; content:".fia-gov.org"; nocase; endswith; reference:url,www.zscaler.com/blogs/security-research/warhawk-new-backdoor-arsenal-sidewinder-apt-group-0; classtype:domain-c2; sid:2039546; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_10_25, deployment Perimeter, malware_family Cobalt_Strike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_25;)