/*
Diavol ransomware (TrickBot group)
*/

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

    strings:
        $s1 = "README_FOR_DECRYPT.txt" ascii nocase
        $s2 = "DIAVOL" ascii nocase
        $s3 = ".lock64" ascii

    condition:
        any of them
}

rule Diavol_PE
{
    meta:
        author = "ransomware.live"
        family = "ransomware.diavol"
        description = "Detects Diavol ransomware executable"
        date = "2026-05-04"
        severity = 9
        score = 90

    strings:
        $s1 = "DIAVOL" ascii wide
        $s2 = ".lock64" ascii
        $s3 = "README_FOR_DECRYPT" ascii

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