/*
RansomHub ransomware (formerly Knight)
*/

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

    strings:
        $s1 = "RansomHub" ascii nocase
        $s2 = "ransomhub" ascii nocase
        $s3 = "ransomhub.onion" ascii nocase

    condition:
        any of them
}

rule RansomHub_PE
{
    meta:
        author = "ransomware.live"
        family = "ransomware.ransomhub"
        description = "Detects RansomHub ransomware executable"
        date = "2026-05-04"
        severity = 9
        score = 90

    strings:
        $s1 = "RansomHub" ascii wide
        $s2 = "ransomhub" ascii nocase
        $s3 = "--network" ascii
        $s4 = "--encrypt" ascii

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