886af494-4087-48c9-b48f-53e638d6f62e

UDDB2B6.sys :inline

Description

UDDB2B6.sys is a TechPowerUp kernel driver (GPU-Z variant) that exposes I/O port read/write, MSR read/write, MmMapIoSpace map/unmap/read/write, and PCI configuration space read/write. TechPowerUp has a history of vulnerable kernel drivers including GPU-Z.sys (CVE-2019-7245, CVE-2025-5324) and ThrottleStop.sys (CVE-2025-7771). The driver is available in the KeServiceDescriptorTable/vulnerable-drivers repository.

  • UUID: 886af494-4087-48c9-b48f-53e638d6f62e
  • Created: 2026-04-17
  • Author: Michael Haag
  • Acknowledgement: | [@rainbowdynamix, @DbgPrint](https://twitter.com/@rainbowdynamix, @DbgPrint)

Download

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Commands

sc.exe create UDDB2B6 binPath=C:\windows\temp\UDDB2B6.sys type=kernel && sc.exe start UDDB2B6
Use CasePrivilegesOperating System
Elevate privilegeskernelWindows 10

Detections

YARA 🏹

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Exact Match

with header and size limitation

Threat Hunting

without header and size limitation

Renamed

for renamed driver files

Sigma 🛡️

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Names

detects loading using name only

Hashes

detects loading using hashes only

Sysmon 🔎

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Block

on hashes

Alert

on hashes

Resources


  • https://github.com/magicsword-io/LOLDrivers/issues/323
  • https://github.com/KeServiceDescriptorTable/vulnerable-drivers

    • Known Vulnerable Samples

    PropertyValue
    FilenameUDDB2B6.sys
    Creation Timestamp2024-02-12 02:47:29
    MD5d4320487bf3021f2f2afcfc43d652a69
    SHA1f94503fea3fa7c526a70187444affd7f0e0e8926
    SHA2569af0b89c5c54eb66e5a660b61aee7c1a25b1c92e20a310d8b16552abcf90c0b5
    Authentihash MD57871902bebb585e4618ba59e9c48bf71
    Authentihash SHA1f36d42ef53bc86c5345ddc9d2a28093fd713822b
    Authentihash SHA2569786d12616feaf1302c308b816d3582969f4510208aedffac92225bbb78efc35
    RichPEHeaderHash MD5b37ad1d85b91c021ea12bff0b0376eee
    RichPEHeaderHash SHA13d6e11dd7d2b8086a4fac748992854a729c981f6
    RichPEHeaderHash SHA25611c623eec508e3fa87222632ece31a0c0e6b4f8b0d21b22715ec9f265c56a44d
    DescriptionLow-Level Driver
    ProductLow-Level Driver

    Download

    Certificates

    Expand
    Certificate 115bbe9e1c286827af66e7a01390c206
    FieldValue
    ToBeSigned (TBS) MD560e408e2390af7c32b78b980eebef3dc
    ToBeSigned (TBS) SHA1ca42b365c64a60c58de315e23b522b3e69dfcf85
    ToBeSigned (TBS) SHA25606990ff9bd8df35bf3deff4b89e9448895469ca675a68d726b02cc307d57eadd
    SubjectC=US, ST=Washington, L=Spokane, O=TechPowerUp LLC, serialNumber=604 057 982, CN=TechPowerUp LLC, BUSINESS_CATEGORY=Private Organization, JURISDICTION_OF_INCORPORATION_SP=Washington, JURISDICTION_OF_INCORPORATION_C=US
    ValidFrom2022-06-24 13:22:08
    ValidTo2025-04-14 20:06:58
    Signaturec59737c97e8486c0a7fc3d2a096b1d16734edb2e1ece05c9716478b6b8a4cd5976140e8efe19e8f790fa191e623f616945f68b8e147911fd94bc0a2c2a09e7e63fdd43680372d79d7e4970c0912d29a43f95dfc1e0b50cb1cf5e8e7d7f0648e38f2661c82fa02c8b74752ac12c97424fde8700a6fd8c8dfe501d029bb8a0cf4a063b0e0f733bec2d046e4966702acfe0d939b628723e0ceea458a6866aa4332dff03369ed46a1ace8fa40a32b77f66f0775dd61378077d3a83b3a95564f85194ec731b62990b844873ef30b2a0f9098b552f58431e9b39e08720b46114201f9535f33e78844202c553a2d79a06d60c0c98966623b0a78c3214ab7d04ba922580f6b50c72c2f251a2a36e0048b4b04b50493ce019a3696ad5750d73036ebe12704ecde47af92fc3ed1afee6dd1b02671991932c3289d194c66c2abe801675abb973a36abdb2ab5e97907a6e9ab16a0a3c5be5f935f7c380d0a3da42fd12cf1931a5954cf04e1b83ab4730507c774d55d9491014dc088a21350fd380cc2d84b2e5fc27d6f7855614be8772917dede4d724e64aabc2f3fe8d10d71f281b9a0ac5028219ecd92cdc77b31c946a282cd1039285c6dbcfa5f70681423194904d1888807009489125284d5c12f5f32ee0282607fef79e2ce39db5173c9a7165ec24020a6b4586d0003fce184dacfc2dbc61fd0d0f0e4d0da13bb381618b4540632ae5f1
    SignatureAlgorithmOID1.2.840.113549.1.1.11
    IsCertificateAuthorityFalse
    SerialNumber115bbe9e1c286827af66e7a01390c206
    Version3
    Certificate 424b6a53cec766141c2a63b1a51c4104
    FieldValue
    ToBeSigned (TBS) MD5db3494d2a0da480f9a2dc03978395f8a
    ToBeSigned (TBS) SHA19cb274c1f98981dbdbe1a7630a9071458784c80d
    ToBeSigned (TBS) SHA25649b229a10f850de5b85110a0e0f59c48dd12b116c9ad236a3f16c5bdfbc968d5
    SubjectC=US, ST=Texas, L=Houston, O=SSL Corp, CN=SSL.com EV Code Signing Intermediate CA RSA R3
    ValidFrom2019-03-26 17:44:23
    ValidTo2034-03-22 17:44:23
    Signature728ffa81488291e26083255b7b8f2f940f8358ce8824fa99424e2d4e3789f89fb11eae744079f9decbf7ff2c25105298408f5438ff5dd12aa95ae6b702bbc87fee2ad3ff7fcc363c5529435d364996265d70e7f22b0567474c99581908f6b1c64f60d2fc38be02ac25d1880da52ce1ddd37d57cf6ac31960d26daa5d7b44e85a5b83dbc81b360a7e0af50a523678e29afb1354cc9cc947bf624e35af3ee1ba0fc993eed520b796b7507652357a9da13b2664371fcebc037bc461815289cc7bfe5a051a47aee412ca8e54e35a9fb0c18af2f95f4668b9afc7d93e84d12b2512383dbb9a01eadfcc66a8b6c51f6a9347b0ce069284ad43836a86395c4ce2024b7873ae4b28e6a4f8616980ccff34e8b02f6402490d8d2e1f7deba186050fed5e7034e5180200eb63be75266da71c905707ae99a58e37d2a7c3586ca5f4e7522235a75bbb6eeb48db9a72deaa5a6249099e902b120fc83adbaf68739dd9e379ca98f9681deae6582ea9186ccd993a9acd267044e666989c251e196ac7d8f3e7ffa63577fbf57dbb8c82c76f7d5432bbea990b39e82051152f89e32ae1c520f37a784e3daf176292548d278c9037dce329e84293b6f83b2b0b9950b8e434069823eeeadfb554bbaedbf1eadd72f945edb1da433b80fc6f6cdfdc916db8a5d4ef75cd654c642c59df132e021b4bfa0493c0bb371d1fb220d34f33af16a11cc0aaa888
    SignatureAlgorithmOID1.2.840.113549.1.1.11
    IsCertificateAuthorityTrue
    SerialNumber424b6a53cec766141c2a63b1a51c4104
    Version3

    Imports

    Expand
    • HAL.dll
    • ntoskrnl.exe

    Imported Functions

    Expand
    • HalGetBusDataByOffset
    • HalSetBusDataByOffset
    • _vsnwprintf
    • RtlInitUnicodeString
    • IoDeleteDevice
    • RtlCopyUnicodeString
    • IoDeleteSymbolicLink
    • IoRegisterShutdownNotification
    • ExAllocatePoolWithTag
    • IoUnregisterShutdownNotification
    • ExFreePoolWithTag
    • IofCompleteRequest
    • IoCreateSymbolicLink
    • wcsrchr
    • __C_specific_handler
    • MmBuildMdlForNonPagedPool
    • IoAllocateMdl
    • MmMapIoSpace
    • MmUnmapIoSpace
    • PsGetCurrentProcessId
    • IoFreeMdl
    • MmUnmapLockedPages
    • MmMapLockedPagesSpecifyCache
    • MmGetSystemRoutineAddress
    • RtlFreeUnicodeString
    • IoCreateDevice
    • ZwClose
    • ObOpenObjectByPointer
    • ZwSetSecurityObject
    • IoDeviceObjectType
    • _snwprintf
    • RtlLengthSecurityDescriptor
    • SeCaptureSecurityDescriptor
    • RtlCreateSecurityDescriptor
    • RtlSetDaclSecurityDescriptor
    • RtlAbsoluteToSelfRelativeSD
    • IoIsWdmVersionAvailable
    • SeExports
    • wcschr
    • _wcsnicmp
    • RtlLengthSid
    • RtlAddAccessAllowedAce
    • RtlGetSaclSecurityDescriptor
    • RtlGetDaclSecurityDescriptor
    • RtlGetGroupSecurityDescriptor
    • RtlGetOwnerSecurityDescriptor
    • ZwOpenKey
    • ZwCreateKey
    • ZwQueryValueKey
    • ZwSetValueKey
    • KeBugCheckEx

    Exported Functions

    Expand

    Sections

    Expand
    • .text
    • .rdata
    • .data
    • .pdata
    • PAGE
    • INIT
    • .rsrc
    • .reloc

    Signature

    Expand
    {
  "Certificates": [
    {
      "CertificateType": "Leaf (Code Signing)",
      "IsCA": false,
      "IsCertificateAuthority": false,
      "IsCodeSigning": true,
      "SerialNumber": "115bbe9e1c286827af66e7a01390c206",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
      "Subject": "C=US, ST=Washington, L=Spokane, O=TechPowerUp LLC, serialNumber=604 057 982, CN=TechPowerUp LLC, BUSINESS_CATEGORY=Private Organization, JURISDICTION_OF_INCORPORATION_SP=Washington, JURISDICTION_OF_INCORPORATION_C=US",
      "TBS": {
        "MD5": "60e408e2390af7c32b78b980eebef3dc",
        "SHA1": "ca42b365c64a60c58de315e23b522b3e69dfcf85",
        "SHA256": "06990ff9bd8df35bf3deff4b89e9448895469ca675a68d726b02cc307d57eadd",
        "SHA384": "25a302eef819bcc3db04b9dcff01ec2c38cb536a73f87a782f79df50178efaa0cb7ec579fe84a446f55f6c05e52ad987"
      },
      "ValidFrom": "2022-06-24 13:22:08",
      "ValidTo": "2025-04-14 20:06:58",
      "Version": 3
    },
    {
      "CertificateType": "CA",
      "IsCA": true,
      "IsCertificateAuthority": true,
      "IsCodeSigning": true,
      "SerialNumber": "424b6a53cec766141c2a63b1a51c4104",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
      "Subject": "C=US, ST=Texas, L=Houston, O=SSL Corp, CN=SSL.com EV Code Signing Intermediate CA RSA R3",
      "TBS": {
        "MD5": "db3494d2a0da480f9a2dc03978395f8a",
        "SHA1": "9cb274c1f98981dbdbe1a7630a9071458784c80d",
        "SHA256": "49b229a10f850de5b85110a0e0f59c48dd12b116c9ad236a3f16c5bdfbc968d5",
        "SHA384": "2012fa0acaa171e7e953cfad3301af5dc2947a64428d9fdc7bcd47afe88ab85fa580e0ed6d0f61e9629d46accc3b48ec"
      },
      "ValidFrom": "2019-03-26 17:44:23",
      "ValidTo": "2034-03-22 17:44:23",
      "Version": 3
    }
  ],
  "CertificatesInfo": "",
  "Signer": [
    {
      "Issuer": "C=US, ST=Texas, L=Houston, O=SSL Corp, CN=SSL.com EV Code Signing Intermediate CA RSA R3",
      "SerialNumber": "115bbe9e1c286827af66e7a01390c206",
      "Version": 1
    }
  ],
  "SignerInfo": ""
}

    source

    last_updated: 2026-04-20