alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query to Raspberry Robin Domain (1n4 .xyz)"; dns.query; bsize:7; content:"1n4.xyz"; nocase; reference:url,twitter.com/BushidoToken/status/1653848522087596034; reference:url,blog.bushidotoken.net/2023/05/raspberry-robin-global-usb-malware.html; classtype:trojan-activity; sid:2045502; rev:2; metadata:attack_target Client_Endpoint, created_at 2023_05_04, deployment Perimeter, malware_family RaspberryRobin, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_26, reviewed_at 2023_08_22;)