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YARA Rule: robinhood.yar

Group:
Valid Rule

/*
RobbinHood ransomware
*/

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

    strings:
        $s1 = "_Decryption_ReadMe.html" ascii nocase
        $s2 = "RobbinHood" ascii nocase
        $s3 = "Robbinhood" ascii nocase

    condition:
        any of them
}

rule RobbinHood_PE
{
    meta:
        author = "ransomware.live"
        family = "ransomware.robinhood"
        description = "Detects RobbinHood ransomware executable"
        date = "2026-05-04"
        severity = 9
        score = 90

    strings:
        $s1 = "RobbinHood" ascii wide
        $s2 = "_Decryption_ReadMe" ascii
        $s3 = "STEEL.exe" ascii nocase

    condition:
        uint16(0) == 0x5A4D and 2 of them
}