YARA Rule: sabbath.yar

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Valid Rule

/*
Sabbath / 54bb47h ransomware
*/

rule Sabbath_Ransomnote
{
    meta:
        author = "ransomware.live"
        family = "ransomware.sabbath"
        description = "Detects Sabbath / 54bb47h ransomware ransom note"
        date = "2026-05-04"
        severity = 7
        score = 70

    strings:
        $s1 = "54BB47H-README.txt" ascii nocase
        $s2 = "54bb47h" ascii nocase
        $s3 = "Sabbath" ascii nocase
        $s4 = ".54bb47h" ascii

    condition:
        any of them
}