alert dns $HOME_NET any -> any any (msg:"ET MALWARE Loki Locker Ransomware CnC Domain in DNS Lookup"; dns.query; content:"loki-locker.one"; nocase; bsize:15; reference:url,blogs.blackberry.com/en/2022/03/lokilocker-ransomware; reference:md5,8aea251877cb4f5ee6cf357831f8620c; reference:url,twitter.com/James_inthe_box/status/1504194638885711872; classtype:domain-c2; sid:2035511; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_03_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Ransomware, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_17;)