{"group":"nefilim","count":1,"rules":[{"rule_name":"nefilim.yar","rule_text":"/*\nNefilim ransomware\n*/\n\nrule Nefilim_Ransomnote\n{\n    meta:\n        author = \"ransomware.live\"\n        family = \"ransomware.nefilim\"\n        description = \"Detects Nefilim ransom note\"\n        date = \"2026-05-04\"\n        severity = 7\n        score = 70\n\n    strings:\n        $s1 = \"NEFILIM-DECRYPT.txt\" ascii nocase\n        $s2 = \"NEFILIM\" ascii\n        $s3 = \"nefilim@\" ascii nocase\n        $s4 = \".NEFILIM\" ascii\n\n    condition:\n        any of them\n}\n\nrule Nefilim_PE\n{\n    meta:\n        author = \"ransomware.live\"\n        family = \"ransomware.nefilim\"\n        description = \"Detects Nefilim ransomware executable\"\n        date = \"2026-05-04\"\n        severity = 9\n        score = 90\n\n    strings:\n        $s1 = \"NEFILIM\" ascii wide\n        $s2 = \"NEFILIM-DECRYPT\" ascii\n        $s3 = \".NEFILIM\" ascii\n\n    condition:\n        uint16(0) == 0x5A4D and 2 of them\n}","sha256":"c4fbb9ea467c0723632021077e16407c79e281f2a930df03f7466a7cdd340eaf","byte_size":864,"updated_at":"2026-06-24 05:16:03"}]}