Windows_VulnDriver_Probmon_1993a180

rule Windows_VulnDriver_Probmon_1993a180 {
    meta:
        author = "Elastic Security"
        id = "1993a180-40c5-49f9-8f4e-0c13e55ac009"
        fingerprint = "a1ffb3affcfd27382947b7fc95507109c2160d7fbbbb1691474496048aa4daa3"
        creation_date = "2026-07-26"
        last_modified = "2026-08-10"
        description = "Name: probmon.sys, Version: <= 3.0.0.4"
        threat_name = "Windows.VulnDriver.Probmon"
        reference_sample = "2f4d5a2168f723815b182a1fb643d3a38c600cc71d98a5d10d6c92293fc5c569"
        severity = 50
        arch_context = "x86"
        scan_context = "file"
        license = "Elastic License v2"
        os = "windows"
    strings:
        $original_file_name = { 4F 00 72 00 69 00 67 00 69 00 6E 00 61 00 6C 00 46 00 69 00 6C 00 65 00 6E 00 61 00 6D 00 65 00 00 00 70 00 72 00 6F 00 62 00 6D 00 6F 00 6E 00 2E 00 73 00 79 00 73 00 00 00 }
        $version = /V\x00S\x00_\x00V\x00E\x00R\x00S\x00I\x00O\x00N\x00_\x00I\x00N\x00F\x00O\x00\x00\x00{0,4}\xbd\x04\xef\xfe[\x00-\xff]{4}([\x00-\xff][\x00-\xff][\x00-\x02][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x03-\x03][\x00-\x00][\x00-\x03][\x00-\x00][\x00-\x00][\x00-\x00]|[\x00-\x00][\x00-\x00][\x03-\x03][\x00-\x00][\x04-\x04][\x00-\x00][\x00-\x00][\x00-\x00])/
        $str1 = "Probmon.pdb"
        $str2 = "ITM SYSTEM File Filter Driver" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $original_file_name and $version and $str1 and $str2
}