{"group":"fletchen","count":1,"rules":[{"rule_name":"fletchen.yar","rule_text":"/*\nfletchen ransomware\n*/\n\nrule fletchen_Ransomnote\n{\n    meta:\n        author = \"ransomware.live\"\n        family = \"ransomware.fletchen\"\n        description = \"Detects fletchen ransomware ransom note or artifact\"\n        date = \"2026-05-04\"\n        severity = 7\n        score = 70\n\n    strings:\n        $name1 = \"fletchen\" ascii nocase\n        $name2 = \"FLETCHEN\" ascii\n        $onion  = \"fletchen.onion\" ascii nocase\n\n    condition:\n        any of them\n}","sha256":"362b365469d343d2fe281834ef07a04cdcdc926f7668980fba30c3e52c60c94e","byte_size":456,"updated_at":"2026-06-24 05:16:01"}]}