alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query to TA444 Domain (companydeck .online)"; dns.query; dotprefix; content:".companydeck.online"; nocase; endswith; classtype:domain-c2; sid:2045670; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_11, deployment Perimeter, confidence High, signature_severity Major, tag TA444, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_11;)