alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query to Ursnif Domain (mifrutty .com)"; dns.query; bsize:12; content:"mifrutty.com"; nocase; reference:url,twitter.com/reecdeep/status/1709916341539320019; classtype:trojan-activity; sid:2048486; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_10_06, deployment Perimeter, deprecation_reason Relevance, malware_family ursnif, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_01_23, reviewed_at 2025_01_23;)