HKTL_NET_GUID_Stealer

rule HKTL_NET_GUID_Stealer {
    meta:
        description = "Detects c# red/black-team tools via typelibguid"
        reference = "https://github.com/malwares/Stealer"
        license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
        author = "Arnim Rupp (https://github.com/ruppde)"
        date = "2020-12-29"
        modified = "2025-08-15"
        id = "c721a0ac-e898-52aa-9bdf-a19bc0bd783d"
    strings:
        $typelibguid0lo = "8fcd4931-91a2-4e18-849b-70de34ab75df" ascii wide
        $typelibguid1lo = "e48811ca-8af8-4e73-85dd-2045b9cca73a" ascii wide
        $typelibguid2lo = "d3d8a1cc-e123-4905-b3de-374749122fcf" ascii wide
    condition:
        (uint16(0) == 0x5A4D and uint32(uint32(0x3C)) == 0x00004550) and any of them
}