Windows_VulnDriver_Windbg_e4f573bf

rule Windows_VulnDriver_Windbg_e4f573bf {
    meta:
        author = "Elastic Security"
        id = "e4f573bf-edff-4829-8bda-60868d4b110d"
        fingerprint = "d954e86255c6afcebd5e261c2041358c6fb576f0e85177431a3f0a222894284c"
        creation_date = "2026-05-22"
        last_modified = "2026-07-29"
        description = "Name: windbg.sys, Version: <= 1.0.0.0"
        threat_name = "Windows.VulnDriver.Windbg"
        reference_sample = "6994b32e3f3357f4a1d0abe81e8b62dd54e36b17816f2f1a80018584200a1b77"
        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 77 00 69 00 6E 00 64 00 62 00 67 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-\x00][\x00-\x00][\x00-\xff][\x00-\xff][\x00-\xff][\x00-\xff]|[\x00-\x00][\x00-\x00][\x01-\x01][\x00-\x00][\x00-\x00][\x00-\x00][\x00-\x00][\x00-\x00])/
        $str1 = "hpsafe.pdb"
        $str2 = "Microsoft? Windows? Operating System" wide
        $str3 = "Windows GUI symbolic debugger" wide
    condition:
        int16(uint32(0x3C) + 0x5c) == 0x0001 and int16(uint32(0x3C) + 0x18) == 0x020b and $original_file_name and $version and $str1 and $str2 and $str3
}