alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNSQuery to TA444 Domain (altair-vc .com)"; dns.query; dotprefix; content:".altair-vc.com"; nocase; endswith; reference:url,twitter.com/TLP_R3D/status/1649147042680172571; reference:url,storage.pardot.com/838563/1676629189Mljyft19/CTI_Advisory_Undetected_North_Korean_Malware_A_Looming_Threat_to_Finan.pdf; classtype:trojan-activity; sid:2045069; rev:5; metadata:attack_target Client_Endpoint, created_at 2023_04_20, deployment Perimeter, confidence High, signature_severity Major, tag TA444, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_19, reviewed_at 2023_09_19;)