/*
DoppelPaymer ransomware
*/

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

    strings:
        $s1 = "DOPPELPAYMER" ascii nocase
        $s2 = "ALLOW_TO_DECRYPT.txt" ascii nocase
        $s3 = "doppelpaymer" ascii nocase

    condition:
        any of them
}

rule DoppelPaymer_PE
{
    meta:
        author = "ransomware.live"
        family = "ransomware.doppelpaymer"
        description = "Detects DoppelPaymer ransomware executable"
        date = "2026-05-04"
        severity = 9
        score = 90

    strings:
        $s1 = "DOPPELPAYMER" ascii wide
        $s2 = "BitPaymer" ascii nocase
        $s3 = "--help" ascii
        $s4 = "--path" ascii
        $s5 = "doppelpaymer" ascii nocase

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