7f80bb6e-bbf6-46dd-b77d-ecef24f1c2cd
ksapi.sys 
Description
Driver can be used to load unsigned drivers
- UUID: 7f80bb6e-bbf6-46dd-b77d-ecef24f1c2cd
- Created: 2025-09-18
- Author: Michael Haag
This download link contains the vulnerable driver!
Commands
sc.exe create ksapi.sys binPath=C:\windows\temp\ksapi.sys type=kernel && sc.exe start ksapi.sys
| Use Case | Privileges | Operating System |
|---|---|---|
| Elevate privileges | kernel | Windows 10 |
Detections
YARA 🏹
Expand
with header and size limitation
without header and size limitation
for renamed driver files
Resources
Known Vulnerable Samples
| Property | Value |
|---|---|
| Filename | 26ed45461e62d733f33671bfd0724399d866ee7606f3f112c90896ce8355392e |
| Creation Timestamp | 2017-12-06 04:14:31 |
| MD5 | 6d5fbbb446b119cb151c97b8e16be822 |
| SHA1 | 38ce6a9e00b059c1710b728af9454a3e9f45e579 |
| SHA256 | 26ed45461e62d733f33671bfd0724399d866ee7606f3f112c90896ce8355392e |
| Authentihash MD5 | 03ff5165bc71e59c3001152f36628e99 |
| Authentihash SHA1 | 21f62d2144377d024519b7ea663f692d639fd941 |
| Authentihash SHA256 | b57caf226aaf1ee53a3e98e2f2ed40837bfa7a889b2914796f03ead147f219a6 |
| RichPEHeaderHash MD5 | f69b0c5ca938ccf37baa4e68f96ff94b |
| RichPEHeaderHash SHA1 | be093c08439526aeafb63750d4adb5e6891f967c |
| RichPEHeaderHash SHA256 | 2c074caf50e9b7073c2bbef7a4f988b0ed4cc0304d021c08d57656b6b725f55b |
| Company | Kingsoft Corporation |
| Description | Kingsoft KSAPI Module |
| Product | Kingsoft Antivirus Security System |
| OriginalFilename | ksapi.sys |
Certificates
Expand
Certificate 7e93ebfb7cc64e59ea4b9a77d406fc3b
| Field | Value |
|---|---|
| ToBeSigned (TBS) MD5 | d0785ad36e427c92b19f6826ab1e8020 |
| ToBeSigned (TBS) SHA1 | 365b7a9c21bd9373e49052c3e7b3e4646ddd4d43 |
| ToBeSigned (TBS) SHA256 | c2abb7484da91a658548de089d52436175fdb760a1387d225611dc0613a1e2ff |
| Subject | CN=Symantec Time Stamping Services CA , G2,O=Symantec Corporation,C=US |
| ValidFrom | 2012-12-21 00:00:00 |
| ValidTo | 2020-12-30 23:59:59 |
| Signature | 03099b8f79ef7f5930aaef68b5fae3091dbb4f82065d375fa6529f168dea1c9209446ef56deb587c30e8f9698d23730b126f47a9ae3911f82ab19bb01ac38eeb599600adce0c4db2d031a6085c2a7afce27a1d574ca86518e979406225966ec7c7376a8321088e41eaddd9573f1d7749872a16065ea6386a2212a35119837eb6 |
| SignatureAlgorithmOID | 1.2.840.113549.1.1.5 |
| IsCertificateAuthority | True |
| SerialNumber | 7e93ebfb7cc64e59ea4b9a77d406fc3b |
| Version | 3 |
Certificate 0ecff438c8febf356e04d86a981b1a50
| Field | Value |
|---|---|
| ToBeSigned (TBS) MD5 | e9d38360b914c8863f6cba3ee58764d3 |
| ToBeSigned (TBS) SHA1 | 4cba8eae47b6bf76f20b3504b98b8f062694a89b |
| ToBeSigned (TBS) SHA256 | 88901d86a4cc1f1bb193d08e1fb63d27452e63f83e228c657ab1a92e4ade3976 |
| Subject | CN=Symantec Time Stamping Services Signer , G4,O=Symantec Corporation,C=US |
| ValidFrom | 2012-10-18 00:00:00 |
| ValidTo | 2020-12-29 23:59:59 |
| Signature | 783bb4912a004cf08f62303778a38427076f18b2de25dca0d49403aa864e259f9a40031cddcee379cb216806dab632b46dbff42c266333e449646d0de6c3670ef705a4356c7c8916c6e9b2dfb2e9dd20c6710fcd9574dcb65cdebd371f4378e678b5cd280420a3aaf14bc48829910e80d111fcdd5c766e4f5e0e4546416e0db0ea389ab13ada097110fc1c79b4807bac69f4fd9cb60c162bf17f5b093d9b5be216ca13816d002e380da8298f2ce1b2f45aa901af159c2c2f491bdb22bbc3fe789451c386b182885df03db451a179332b2e7bb9dc20091371eb6a195bcfe8a530572c89493fb9cf7fc9bf3e226863539abd6974acc51d3c7f92e0c3bc1cd80475 |
| SignatureAlgorithmOID | 1.2.840.113549.1.1.5 |
| IsCertificateAuthority | False |
| SerialNumber | 0ecff438c8febf356e04d86a981b1a50 |
| Version | 3 |
Certificate 4c6d7b5ea289c274426434e65b417aba
| Field | Value |
|---|---|
| ToBeSigned (TBS) MD5 | 926f275e20569cb88069ecd4cc0a94bf |
| ToBeSigned (TBS) SHA1 | 5d767ae1c6d051b4872bb020faed9b867b8b589c |
| ToBeSigned (TBS) SHA256 | 79f52876b273ad0c7ee45c5d7298651797f9f5eb37d5916f7f79a9b404373e4e |
| Subject | CN=Beijing Kingsoft Security software Co.,Ltd,OU=IT,O=Beijing Kingsoft Security software Co.,Ltd,L=Beijing,ST=Beijing,C=CN |
| ValidFrom | 2017-02-17 00:00:00 |
| ValidTo | 2019-03-19 23:59:59 |
| Signature | 5a222f1e7c7756188ea9151ce28f7b5b4c76b7c28b9ca26d72402a9c67d9f78eb038cd3297c996274010620ac7fd78c5f21f482a40a2af528625a170c2a52745a0e37203842aac97f3df29d1cc6862472d30c48acde8fec98ca70562c37b86d5ab869f2c336a30f4339cce0a1ef8cfab21daad78aaa4541175ad473742f4228df3531e178ba7abad162cecde2de20aaf9de7058b8bc696d490a386c9d2be0608a0d821e44d7920486484aa72005b349b9fa985fb62c38e802fb3153087cdd77bc9e9cd70b9eedf8a83c75038256cd0c4c26ece2d3708ffce053bccfdb325ba5c187f73f79d5721f0a5356e6cf37f5c3ec9868b1c0ce718f15bfd8c3bc64b2ca0 |
| SignatureAlgorithmOID | 1.2.840.113549.1.1.5 |
| IsCertificateAuthority | False |
| SerialNumber | 4c6d7b5ea289c274426434e65b417aba |
| Version | 3 |
Certificate 611993e400000000001c
| Field | Value |
|---|---|
| ToBeSigned (TBS) MD5 | 78a717e082dcc1cda3458d917e677d14 |
| ToBeSigned (TBS) SHA1 | 4a872e0e51f9b304469cd1dedb496ee9b8b983a4 |
| ToBeSigned (TBS) SHA256 | 317fa1d234ebc49040ebc5e8746f8997471496051b185a91bdd9dfbb23fab5f8 |
| Subject | CN=VeriSign Class 3 Public Primary Certification Authority , G5,OU=(c) 2006 VeriSign, Inc. , For authorized use only,OU=VeriSign Trust Network,O=VeriSign, Inc.,C=US |
| ValidFrom | 2011-02-22 19:25:17 |
| ValidTo | 2021-02-22 19:35:17 |
| Signature | 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 |
| SignatureAlgorithmOID | 1.2.840.113549.1.1.5 |
| IsCertificateAuthority | True |
| SerialNumber | 611993e400000000001c |
| Version | 3 |
Certificate 5200e5aa2556fc1a86ed96c9d44b33c7
| Field | Value |
|---|---|
| ToBeSigned (TBS) MD5 | b30c31a572b0409383ed3fbe17e56e81 |
| ToBeSigned (TBS) SHA1 | 4843a82ed3b1f2bfbee9671960e1940c942f688d |
| ToBeSigned (TBS) SHA256 | 03cda47a6e654ed85d932714fc09ce4874600eda29ec6628cfbaeb155cab78c9 |
| Subject | CN=VeriSign Class 3 Code Signing 2010 CA,OU=Terms of use at https://www.verisign.com/rpa (c)10,OU=VeriSign Trust Network,O=VeriSign, Inc.,C=US |
| ValidFrom | 2010-02-08 00:00:00 |
| ValidTo | 2020-02-07 23:59:59 |
| Signature | 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 |
| SignatureAlgorithmOID | 1.2.840.113549.1.1.5 |
| IsCertificateAuthority | True |
| SerialNumber | 5200e5aa2556fc1a86ed96c9d44b33c7 |
| Version | 3 |
Imports
Expand
- ntoskrnl.exe
Imported Functions
Expand
- MmGetSystemRoutineAddress
- DbgPrint
- RtlInitUnicodeString
- IoDeleteDevice
- IoFreeMdl
- SeReleaseSubjectContext
- SeCaptureSubjectContext
- IofCompleteRequest
- MmProbeAndLockPages
- MmUnlockPages
- IoCreateSymbolicLink
- IoCreateDevice
- SeTokenIsAdmin
- IoAllocateMdl
- IoDeleteSymbolicLink
- ZwDeleteKey
- IoFileObjectType
- ZwQueryValueKey
- ZwUnmapViewOfSection
- ExAllocatePool
- ZwEnumerateKey
- IoGetCurrentProcess
- ExEventObjectType
- ZwQueryKey
- ExAllocatePoolWithTag
- ProbeForRead
- MmCreateSection
- ZwOpenKey
- NtClose
- KeClearEvent
- ZwEnumerateValueKey
- ZwClose
- ZwCreateKey
- ExFreePoolWithTag
- MmMapViewOfSection
- IoGetBaseFileSystemDeviceObject
- ObReferenceObjectByHandle
- KeWaitForSingleObject
- _wcsnicmp
- IoFreeIrp
- IoGetRelatedDeviceObject
- KeSetEvent
- ProbeForWrite
- IoAllocateIrp
- IoCreateFile
- KeInitializeEvent
- ZwDeleteValueKey
- ZwSetValueKey
- ObfDereferenceObject
- ObInsertObject
- ExAllocatePoolWithQuotaTag
- ObCreateObject
- ZwOpenSymbolicLinkObject
- IoGetDeviceObjectPointer
- IoGetDeviceAttachmentBaseRef
- KeBugCheckEx
- IoCreateFileSpecifyDeviceObjectHint
- SeDeleteAccessState
- ZwOpenFile
- IoReleaseVpbSpinLock
- IoAcquireVpbSpinLock
- ZwQuerySymbolicLinkObject
- SeCreateAccessState
- wcsncpy
- IoGetFileObjectGenericMapping
- PsGetVersion
- ObfReferenceObject
- MmIsAddressValid
- ObOpenObjectByPointer
- _strnicmp
- PsProcessType
- ZwDuplicateObject
- ZwOpenProcess
- PsGetCurrentProcessId
- ZwSetInformationObject
- KeStackAttachProcess
- PsLookupProcessByProcessId
- ZwQuerySystemInformation
- RtlEqualUnicodeString
- KeUnstackDetachProcess
- ZwSetInformationFile
- ObQueryNameString
- ZwWaitForSingleObject
- PsCreateSystemThread
- ExInitializeNPagedLookasideList
- ExpInterlockedPushEntrySList
- ExpInterlockedPopEntrySList
- MmUserProbeAddress
- ExQueryDepthSList
- ExDeleteNPagedLookasideList
- ZwTerminateProcess
- RtlAnsiStringToUnicodeString
- ZwReadFile
- ZwMapViewOfSection
- ZwCreateSection
- RtlImageNtHeader
- SeDeleteObjectAuditAlarm
- ExGetPreviousMode
- __C_specific_handler
- __chkstk
Exported Functions
Expand
Sections
Expand
- .text
- .data
- .pdata
- PAGE
- 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": "CN=Symantec Time Stamping Services CA , G2,O=Symantec Corporation,C=US",
"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": "CN=Symantec Time Stamping Services Signer , G4,O=Symantec Corporation,C=US",
"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": "4c6d7b5ea289c274426434e65b417aba",
"Signature": "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",
"SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
"Subject": "CN=Beijing Kingsoft Security software Co.,Ltd,OU=IT,O=Beijing Kingsoft Security software Co.,Ltd,L=Beijing,ST=Beijing,C=CN",
"TBS": {
"MD5": "926f275e20569cb88069ecd4cc0a94bf",
"SHA1": "5d767ae1c6d051b4872bb020faed9b867b8b589c",
"SHA256": "79f52876b273ad0c7ee45c5d7298651797f9f5eb37d5916f7f79a9b404373e4e",
"SHA384": "ad0c57d8fced327ff5b5c6ab55a473e77229368cf866c39ca7a58222e3f3a0883bd39c86182d026c7c30c7baa14d9802"
},
"ValidFrom": "2017-02-17 00:00:00",
"ValidTo": "2019-03-19 23:59:59",
"Version": 3
},
{
"CertificateType": "CA",
"IsCA": true,
"IsCertificateAuthority": true,
"IsCodeSigning": false,
"SerialNumber": "611993e400000000001c",
"Signature": "812a82168c34672be503eb347b8ca2a3508af45586f11e8c8eae7dee0319ce72951848ad6211fd20fd3f4706015ae2e06f8c152c4e3c6a506c0b36a3cf7a0d9c42bc5cf819d560e369e6e22341678c6883762b8f93a32ab57fbe59fba9c9b2268fcaa2f3821b983e919527978661ee5b5d076bcd86a8e26580a8e215e2b2be23056aba0cf347934daca48c077939c061123a050d89a3ec9f578984fbecca7c47661491d8b60f195de6b84aacbc47c8714396e63220a5dc7786fd3ce38b71db7b9b03fcb71d3264eb1652a043a3fa2ead59924e7cc7f233424838513a7c38c71b242228401e1a461f17db18f7f027356cb863d9cdb9645d2ba55eefc629b4f2c7f821cc04ba57fd01b6abc667f9e7d3997ff4f522fa72f5fdff3a1c423aa1f98018a5ee8d1cd4669e4501feaaeefffb178f30f7f1cd29c59decb5d549003d85b8cbbb933a276a49c030ae66c9f723283276f9a48356c848ce5a96aaa0cc0cc47fb48e97af6de35427c39f86c0d6e473089705dbd054625e0348c2d59f7fa7668cd09db04fd4d3985f4b7ac97fb22952d01280c70f54b61e67cdc6a06c110384d34875e72afeb03b6e0a3aa66b769905a3f177686133144706fc537f52bd92145c4a246a678caf8d90aad0f679211b93267cc3ce1ebd883892ae45c6196a4950b305f8ae59378a6a250394b1598150e8ba8380b72335f476b9671d5918ad208d94",
"SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
"Subject": "CN=VeriSign Class 3 Public Primary Certification Authority , G5,OU=(c) 2006 VeriSign, Inc. , For authorized use only,OU=VeriSign Trust Network,O=VeriSign, Inc.,C=US",
"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
},
{
"CertificateType": "CA",
"IsCA": true,
"IsCertificateAuthority": true,
"IsCodeSigning": true,
"SerialNumber": "5200e5aa2556fc1a86ed96c9d44b33c7",
"Signature": "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",
"SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
"Subject": "CN=VeriSign Class 3 Code Signing 2010 CA,OU=Terms of use at https://www.verisign.com/rpa (c)10,OU=VeriSign Trust Network,O=VeriSign, Inc.,C=US",
"TBS": {
"MD5": "b30c31a572b0409383ed3fbe17e56e81",
"SHA1": "4843a82ed3b1f2bfbee9671960e1940c942f688d",
"SHA256": "03cda47a6e654ed85d932714fc09ce4874600eda29ec6628cfbaeb155cab78c9",
"SHA384": "bbda8407c4f9fc4e54d772f1c7fb9d30bc97e1f97ecd51c443063d1fa0644e266328781776cd5c44896c457c75f4d7da"
},
"ValidFrom": "2010-02-08 00:00:00",
"ValidTo": "2020-02-07 23:59:59",
"Version": 3
}
],
"CertificatesInfo": "",
"Signer": [
{
"Issuer": "CN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZA",
"SerialNumber": "4c6d7b5ea289c274426434e65b417aba",
"Version": 1
}
],
"SignerInfo": ""
}
last_updated: 2026-01-07