YARA Rule: karma.yar

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Valid Rule

/*
Karma ransomware (Nefilim/Karma group)
*/

rule Karma_Ransomnote
{
    meta:
        author = "ransomware.live"
        family = "ransomware.karma"
        description = "Detects Karma ransomware ransom note"
        date = "2026-05-04"
        severity = 7
        score = 70

    strings:
        $s1 = "KARMA-ENCRYPTED" ascii nocase
        $s2 = "KARMA-AGREEMENT.txt" ascii nocase
        $s3 = ".KARMA" ascii
        $s4 = "Karma" ascii

    condition:
        2 of them
}