HKTL_NET_GUID_AMSI_Handler

rule HKTL_NET_GUID_AMSI_Handler {
    meta:
        description = "Detects c# red/black-team tools via typelibguid"
        reference = "https://github.com/two06/AMSI_Handler"
        license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
        author = "Arnim Rupp (https://github.com/ruppde)"
        date = "2020-12-13"
        modified = "2025-08-15"
        id = "40768acf-fa9e-531a-83fd-187814ddc2d4"
    strings:
        $typelibguid0lo = "d829426c-986c-40a4-8ee2-58d14e090ef2" ascii wide
        $typelibguid1lo = "86652418-5605-43fd-98b5-859828b072be" ascii wide
        $typelibguid2lo = "1043649f-18e1-41c4-ae8d-ac4d9a86c2fc" ascii wide
        $typelibguid3lo = "1d920b03-c537-4659-9a8c-09fb1d615e98" ascii wide
    condition:
        (uint16(0) == 0x5A4D and uint32(uint32(0x3C)) == 0x00004550) and any of them
}