96ba5e53-6a40-4813-b6f1-ccce31a883cf

xhunter1.sys :inline

Description

Wellbia xhunter1.sys is an XIGNCODE3 anti-cheat kernel component documented by BlackSnufkin BYOVD research as CVE-2026-3609. The legacy build exposes command paths that can be abused to interfere with target process handles and terminate protected security processes from kernel context.

  • UUID: 96ba5e53-6a40-4813-b6f1-ccce31a883cf
  • Created: 2026-06-16
  • Author: Michael Haag
  • Acknowledgement: BlackSnufkin | @BlackSnufkin

Download

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Commands

sc.exe create xhunter1 binPath=C:\windows\temp\xhunter1.sys type=kernel && sc.exe start xhunter1
Use CasePrivilegesOperating System
Terminate protected processes by abusing vulnerable xhunter1 kernel command paths.kernelWindows 10, Windows 11

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 🔎

Expand

Block

on hashes

Alert

on hashes

Resources


  • https://github.com/BlackSnufkin/BYOVD/tree/main/Xhunter1-Killer
  • https://web.archive.org/web/20180820182619/https://x86.re/blog/xigncode3-xhunter1.sys-lpe/

    • CVE

  • C
  • V
  • E
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  • 0
  • 9

    • Known Vulnerable Samples

    PropertyValue
    Filenamexhunter1.sys
    Creation Timestamp2018-04-16 02:45:02
    MD5c61c16de83acabd35ee18e410c1c37c1
    SHA1852049ecfd6a42370f2d6ed0d5e67e52c8d88211
    SHA256e727d0753d2cd0b2f6eeba4cea53aa10b3ff3ed2afeb78f545fcf6d840f85c3e
    Authentihash MD5fab640bd776f3d1098bbc4fb366f1515
    Authentihash SHA15aca2a43c5a9f1fc59bff578e739a8ab8edecc6f
    Authentihash SHA25685a3cacfb0eb01fc5784695ccf6bd92a537637ecad747eb162331e78da68eee4
    RichPEHeaderHash MD51d925fc376773fb63431ac44c280f7b3
    RichPEHeaderHash SHA1040040149603ea0f6dc317b7c1ebc274309b7ba2
    RichPEHeaderHash SHA2566ee450f7bfef5e77fd8c04fc7d82568e83aa57251b7aa6e370e1ec0320440c17
    CompanyWellbia.com Co., Ltd.
    DescriptionXIGNCODE3 System Guard
    ProductXIGNCODE3
    OriginalFilenamexhunter1.sys

    Download

    Certificates

    Expand
    Certificate 7e93ebfb7cc64e59ea4b9a77d406fc3b
    FieldValue
    ToBeSigned (TBS) MD5d0785ad36e427c92b19f6826ab1e8020
    ToBeSigned (TBS) SHA1365b7a9c21bd9373e49052c3e7b3e4646ddd4d43
    ToBeSigned (TBS) SHA256c2abb7484da91a658548de089d52436175fdb760a1387d225611dc0613a1e2ff
    SubjectC=US, O=Symantec Corporation, CN=Symantec Time Stamping Services CA , G2
    ValidFrom2012-12-21 00:00:00
    ValidTo2020-12-30 23:59:59
    Signature03099b8f79ef7f5930aaef68b5fae3091dbb4f82065d375fa6529f168dea1c9209446ef56deb587c30e8f9698d23730b126f47a9ae3911f82ab19bb01ac38eeb599600adce0c4db2d031a6085c2a7afce27a1d574ca86518e979406225966ec7c7376a8321088e41eaddd9573f1d7749872a16065ea6386a2212a35119837eb6
    SignatureAlgorithmOID1.2.840.113549.1.1.5
    IsCertificateAuthorityTrue
    SerialNumber7e93ebfb7cc64e59ea4b9a77d406fc3b
    Version3
    Certificate 0ecff438c8febf356e04d86a981b1a50
    FieldValue
    ToBeSigned (TBS) MD5e9d38360b914c8863f6cba3ee58764d3
    ToBeSigned (TBS) SHA14cba8eae47b6bf76f20b3504b98b8f062694a89b
    ToBeSigned (TBS) SHA25688901d86a4cc1f1bb193d08e1fb63d27452e63f83e228c657ab1a92e4ade3976
    SubjectC=US, O=Symantec Corporation, CN=Symantec Time Stamping Services Signer , G4
    ValidFrom2012-10-18 00:00:00
    ValidTo2020-12-29 23:59:59
    Signature783bb4912a004cf08f62303778a38427076f18b2de25dca0d49403aa864e259f9a40031cddcee379cb216806dab632b46dbff42c266333e449646d0de6c3670ef705a4356c7c8916c6e9b2dfb2e9dd20c6710fcd9574dcb65cdebd371f4378e678b5cd280420a3aaf14bc48829910e80d111fcdd5c766e4f5e0e4546416e0db0ea389ab13ada097110fc1c79b4807bac69f4fd9cb60c162bf17f5b093d9b5be216ca13816d002e380da8298f2ce1b2f45aa901af159c2c2f491bdb22bbc3fe789451c386b182885df03db451a179332b2e7bb9dc20091371eb6a195bcfe8a530572c89493fb9cf7fc9bf3e226863539abd6974acc51d3c7f92e0c3bc1cd80475
    SignatureAlgorithmOID1.2.840.113549.1.1.5
    IsCertificateAuthorityFalse
    SerialNumber0ecff438c8febf356e04d86a981b1a50
    Version3
    Certificate 1734520c9aabc257a502ec5dbf615354
    FieldValue
    ToBeSigned (TBS) MD56dee25e9833b43f283c47c8aa7198c70
    ToBeSigned (TBS) SHA1fc914def7c965d213634d1e95942ac95f9cf47b1
    ToBeSigned (TBS) SHA25612db45f8d63173d8d41489c6e9f94ea13f922033be01aabde4d5fe002aac4bad
    SubjectC=KR, ST=Seoul, L=Guro,Gu, O=Wellbia.com Co., Ltd., CN=Wellbia.com Co., Ltd.
    ValidFrom2018-04-12 00:00:00
    ValidTo2020-05-11 23:59:59
    Signature76af0beb63fe640e30dbbd76c311c39a33d26fc66ee11668de31654b6473ddd400d9a64c9c3971443d543336098d5613c7b8213f7194538554120b8857d1d8b1f222a43414d023f47d1ad6df6491f0c21d49c968bfcc9bbe06b67948c53859310ab9653bcd2d68d59e675ac3bb5c98f45bf23ff15e3f85edc7b4f200624ec5799c3496fe60cb35d93355dfb00834e680edf57e0f4a69932319a38add95d46c290c7d52af6c2ea27c6a952815f4275fbda581643dfacbb24002feb8b64c175d9c5f41efc9702fcfe6c9d43cb57e0c8abdbf16a63655eaf56456456e4671077f5ac207b0d71acdbc5e59978a430ec2e929def31d27cfe121b739473786412ce822
    SignatureAlgorithmOID1.2.840.113549.1.1.11
    IsCertificateAuthorityFalse
    SerialNumber1734520c9aabc257a502ec5dbf615354
    Version3
    Certificate 3d78d7f9764960b2617df4f01eca862a
    FieldValue
    ToBeSigned (TBS) MD51f056ff7d5f874984dc605402b7cb042
    ToBeSigned (TBS) SHA1bdb348353a2203deb4b767914fa1bd7248dd728b
    ToBeSigned (TBS) SHA256a08e79c386083d875014c409c13d144e0a24386132980df11ff59737c8489eb1
    SubjectC=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 SHA256 Code Signing CA
    ValidFrom2013-12-10 00:00:00
    ValidTo2023-12-09 23:59:59
    Signature13851a1e69a937f7a0bda4af7e1d6153fe9d8c5e0ca6751e781723ddfdec1a035539fb7195c7655aa78e30d2445a61db706fda2105c22e73ba49f1d193fe5dc9cd5e03e0899e3f741ed7f7388ba9d6cfbb352f3358a89256d1c84d3b82e6798416fc28b0b147f31da23eee87d9a67fa456a53fad842e29de7cbca8aaa33d0401eaba93a20e502229174c87e43a115fd6a425899b056b2fb4c9014c277b0bac190522a060153fdac9fb4d4c8ffb726777fd2794c7ba350e8849fe8dfd28af4a12bd0db39705de440c15fa362b03dcc15001f1a1115d14e5e2bd274b54be2b845e0fa6c374050aef97c38922b11f77f3bdcd43d4f14ca93fb58b84af64f2d01421
    SignatureAlgorithmOID1.2.840.113549.1.1.11
    IsCertificateAuthorityTrue
    SerialNumber3d78d7f9764960b2617df4f01eca862a
    Version3
    Certificate 611993e400000000001c
    FieldValue
    ToBeSigned (TBS) MD578a717e082dcc1cda3458d917e677d14
    ToBeSigned (TBS) SHA14a872e0e51f9b304469cd1dedb496ee9b8b983a4
    ToBeSigned (TBS) SHA256317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8
    SubjectC=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. , For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority , G5
    ValidFrom2011-02-22 19:25:17
    ValidTo2021-02-22 19:35:17
    Signature812a82168c34672be503eb347b8ca2a3508af45586f11e8c8eae7dee0319ce72951848ad6211fd20fd3f4706015ae2e06f8c152c4e3c6a506c0b36a3cf7a0d9c42bc5cf819d560e369e6e22341678c6883762b8f93a32ab57fbe59fba9c9b2268fcaa2f3821b983e919527978661ee5b5d076bcd86a8e26580a8e215e2b2be23056aba0cf347934daca48c077939c061123a050d89a3ec9f578984fbecca7c47661491d8b60f195de6b84aacbc47c8714396e63220a5dc7786fd3ce38b71db7b9b03fcb71d3264eb1652a043a3fa2ead59924e7cc7f233424838513a7c38c71b242228401e1a461f17db18f7f027356cb863d9cdb9645d2ba55eefc629b4f2c7f821cc04ba57fd01b6abc667f9e7d3997ff4f522fa72f5fdff3a1c423aa1f98018a5ee8d1cd4669e4501feaaeefffb178f30f7f1cd29c59decb5d549003d85b8cbbb933a276a49c030ae66c9f723283276f9a48356c848ce5a96aaa0cc0cc47fb48e97af6de35427c39f86c0d6e473089705dbd054625e0348c2d59f7fa7668cd09db04fd4d3985f4b7ac97fb22952d01280c70f54b61e67cdc6a06c110384d34875e72afeb03b6e0a3aa66b769905a3f177686133144706fc537f52bd92145c4a246a678caf8d90aad0f679211b93267cc3ce1ebd883892ae45c6196a4950b305f8ae59378a6a250394b1598150e8ba8380b72335f476b9671d5918ad208d94
    SignatureAlgorithmOID1.2.840.113549.1.1.5
    IsCertificateAuthorityTrue
    SerialNumber611993e400000000001c
    Version3

    Imports

    Expand
    • ntoskrnl.exe

    Imported Functions

    Expand
    • wcsrchr
    • RtlInitUnicodeString
    • ExAllocatePoolWithTag
    • ExFreePoolWithTag
    • ObReferenceObjectByHandle
    • ObfDereferenceObject
    • ZwOpenFile
    • ZwReadFile
    • ZwClose
    • PsGetCurrentProcessId
    • KeStackAttachProcess
    • KeUnstackDetachProcess
    • ZwWaitForSingleObject
    • ObReferenceObjectByName
    • ZwQueryInformationProcess
    • ObSetHandleAttributes
    • __C_specific_handler
    • IoDriverObjectType
    • MmGetSystemRoutineAddress
    • MmIsAddressValid
    • PsGetProcessId
    • PsProcessType
    • PsThreadType
    • KeEnterGuardedRegion
    • KeLeaveGuardedRegion
    • KeAcquireSpinLockRaiseToDpc
    • KeReleaseSpinLock
    • IoGetCurrentProcess
    • KeSetEvent
    • ExQueryDepthSList
    • ExpInterlockedPopEntrySList
    • ExpInterlockedPushEntrySList
    • ExInitializeNPagedLookasideList
    • ExDeleteNPagedLookasideList
    • IoCreateNotificationEvent
    • _wcsnicmp
    • RtlEqualUnicodeString
    • KeInitializeMutex
    • KeReleaseMutex
    • KeWaitForSingleObject
    • PsSetCreateProcessNotifyRoutine
    • PsLookupProcessByProcessId
    • KeInitializeDpc
    • KeInsertQueueDpc
    • KeSetImportanceDpc
    • KeSetTargetProcessorDpc
    • KeDelayExecutionThread
    • ExAllocatePool
    • ProbeForRead
    • ProbeForWrite
    • MmProbeAndLockPages
    • MmUnlockPages
    • MmMapLockedPagesSpecifyCache
    • MmUnmapLockedPages
    • IoAllocateMdl
    • IoFreeMdl
    • ZwCreateFile
    • ZwQueryInformationFile
    • IoThreadToProcess
    • ObOpenObjectByPointer
    • PsLookupProcessThreadByCid
    • KeNumberProcessors
    • IofCompleteRequest
    • IoCreateDevice
    • IoCreateSymbolicLink
    • IoDeleteDevice
    • IoDeleteSymbolicLink
    • ZwUnloadDriver
    • _stricmp
    • ZwQuerySystemInformation
    • KeBugCheckEx
    • PsGetVersion

    Exported Functions

    Expand

    Sections

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

    Signature

    Expand
    {
  "Certificates": [
    {
      "CertificateType": "CA",
      "IsCA": true,
      "IsCertificateAuthority": true,
      "IsCodeSigning": false,
      "SerialNumber": "7e93ebfb7cc64e59ea4b9a77d406fc3b",
      "Signature": "03099b8f79ef7f5930aaef68b5fae3091dbb4f82065d375fa6529f168dea1c9209446ef56deb587c30e8f9698d23730b126f47a9ae3911f82ab19bb01ac38eeb599600adce0c4db2d031a6085c2a7afce27a1d574ca86518e979406225966ec7c7376a8321088e41eaddd9573f1d7749872a16065ea6386a2212a35119837eb6",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services CA , G2",
      "TBS": {
        "MD5": "d0785ad36e427c92b19f6826ab1e8020",
        "SHA1": "365b7a9c21bd9373e49052c3e7b3e4646ddd4d43",
        "SHA256": "c2abb7484da91a658548de089d52436175fdb760a1387d225611dc0613a1e2ff",
        "SHA384": "eab4fe5ef90e0de4a6aa3a27769a5e879f588df5e4785aa4104debd1f81e19ea56d33e3a16e5facf99f68b5d8e3d287b"
      },
      "ValidFrom": "2012-12-21 00:00:00",
      "ValidTo": "2020-12-30 23:59:59",
      "Version": 3
    },
    {
      "CertificateType": "Intermediate",
      "IsCA": false,
      "IsCertificateAuthority": false,
      "IsCodeSigning": false,
      "SerialNumber": "0ecff438c8febf356e04d86a981b1a50",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=Symantec Corporation, CN=Symantec Time Stamping Services Signer , G4",
      "TBS": {
        "MD5": "e9d38360b914c8863f6cba3ee58764d3",
        "SHA1": "4cba8eae47b6bf76f20b3504b98b8f062694a89b",
        "SHA256": "88901d86a4cc1f1bb193d08e1fb63d27452e63f83e228c657ab1a92e4ade3976",
        "SHA384": "e9f2a75334a9e336c5a4712eadee88d0374b0fdc273262f4e65c9040ad2793067cc076696db5279a478773485e285652"
      },
      "ValidFrom": "2012-10-18 00:00:00",
      "ValidTo": "2020-12-29 23:59:59",
      "Version": 3
    },
    {
      "CertificateType": "Leaf (Code Signing)",
      "IsCA": false,
      "IsCertificateAuthority": false,
      "IsCodeSigning": true,
      "SerialNumber": "1734520c9aabc257a502ec5dbf615354",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
      "Subject": "C=KR, ST=Seoul, L=Guro,Gu, O=Wellbia.com Co., Ltd., CN=Wellbia.com Co., Ltd.",
      "TBS": {
        "MD5": "6dee25e9833b43f283c47c8aa7198c70",
        "SHA1": "fc914def7c965d213634d1e95942ac95f9cf47b1",
        "SHA256": "12db45f8d63173d8d41489c6e9f94ea13f922033be01aabde4d5fe002aac4bad",
        "SHA384": "851d3c7c0364cd406199d2057ae41fdef12330f023648d22ea76b930b094d26095ba32d516e73c9cb8d0ce31544ddcb5"
      },
      "ValidFrom": "2018-04-12 00:00:00",
      "ValidTo": "2020-05-11 23:59:59",
      "Version": 3
    },
    {
      "CertificateType": "CA",
      "IsCA": true,
      "IsCertificateAuthority": true,
      "IsCodeSigning": true,
      "SerialNumber": "3d78d7f9764960b2617df4f01eca862a",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
      "Subject": "C=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 SHA256 Code Signing CA",
      "TBS": {
        "MD5": "1f056ff7d5f874984dc605402b7cb042",
        "SHA1": "bdb348353a2203deb4b767914fa1bd7248dd728b",
        "SHA256": "a08e79c386083d875014c409c13d144e0a24386132980df11ff59737c8489eb1",
        "SHA384": "fa2729064b49e0d77540c1ee95d5f74acaf8eaf55197851a3a40383335f8113e51190bc48b552196edf8ac5cf0c89278"
      },
      "ValidFrom": "2013-12-10 00:00:00",
      "ValidTo": "2023-12-09 23:59:59",
      "Version": 3
    },
    {
      "CertificateType": "CA",
      "IsCA": true,
      "IsCertificateAuthority": true,
      "IsCodeSigning": false,
      "SerialNumber": "611993e400000000001c",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=(c) 2006 VeriSign, Inc. , For authorized use only, CN=VeriSign Class 3 Public Primary Certification Authority , G5",
      "TBS": {
        "MD5": "78a717e082dcc1cda3458d917e677d14",
        "SHA1": "4a872e0e51f9b304469cd1dedb496ee9b8b983a4",
        "SHA256": "317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8",
        "SHA384": "b71052da4eb9157c8c1a5d7f55df19d69b9128598b72fcca608e5b7cc7d64c43c5504b9c86355a6dc22ee40c88cc385c"
      },
      "ValidFrom": "2011-02-22 19:25:17",
      "ValidTo": "2021-02-22 19:35:17",
      "Version": 3
    }
  ],
  "CertificatesInfo": "",
  "Signer": [
    {
      "Issuer": "C=US, O=Symantec Corporation, OU=Symantec Trust Network, CN=Symantec Class 3 SHA256 Code Signing CA",
      "SerialNumber": "1734520c9aabc257a502ec5dbf615354",
      "Version": 1
    }
  ],
  "SignerInfo": ""
}

    source

    last_updated: 2026-06-16