alert dns $HOME_NET any -> any any (msg:"ET MALWARE Sofacy DNS Lookup"; dns.query; content:"drivres-update.info"; startswith; nocase; endswith; fast_pattern; reference:md5,c3ae4a37094ecfe95c2badecf40bf5bb; classtype:targeted-activity; sid:2022122; rev:6; metadata:created_at 2015_11_19, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_13;)