7a0842ca-1a64-4ad1-9d66-25eb983d1742

directio32_legacy.sys

Description

Confirmed vulnerable driver from Microsoft Block List

UUID: 7a0842ca-1a64-4ad1-9d66-25eb983d1742
Created: 2023-07-22
Author: Michael Haag
Acknowledgement: |

Use Case	Privileges	Operating System
Elevate privileges	kernel	Windows

Detections

YARA 🏹

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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://gist.github.com/mgraeber-rc/1bde6a2a83237f17b463d051d32e802c

CVE

Known Vulnerable Samples

Property	Value
Filename
Creation Timestamp	2020-08-11 23:45:00
MD5	2da707d2fa073d60c4b069ce76a789ef
SHA1	75c924435e87f38f20e5e77b7f2c382b9c9b974b
SHA256	035b96ff8b85d312be0f9df6271714392a802ec8bab59ae8229812ddc67ced5a
Authentihash MD5	a25749ae40ff475524e5df6431998825
Authentihash SHA1	59c8f056dea50a4b6f6f63e50037089965568910
Authentihash SHA256	2fb5d7e6db01c9090bba92abf580d38993e02ce9357e08fe1f224a9b18056e5a
RichPEHeaderHash MD5	78c0e4d4898d4d4cc2c6df5285c1e11b
RichPEHeaderHash SHA1	0c932c2f26d8d024936f27bc6ff33dc736587a6e
RichPEHeaderHash SHA256	cae87d0bcaa037bfb6c422692648e50bb26aad2909044f1cdb1d6cb706dd94d1

Download

Certificates

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Certificate 61204db4000000000027

Field	Value
ToBeSigned (TBS) MD5	8e3ffc222fbcebdbb8b23115ab259be7
ToBeSigned (TBS) SHA1	ee20bff28ffe13be731c294c90d6ded5aae0ec0e
ToBeSigned (TBS) SHA256	59826b69bc8c28118c96323b627da59aaca0b142cc5d8bad25a8fcfd399aa821
Subject	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA
ValidFrom	2011-04-15 19:45:33
ValidTo	2021-04-15 19:55:33
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.5
IsCertificateAuthority	True
SerialNumber	61204db4000000000027
Version	3

Certificate 0d671c2c3c13676231329afa97b1ec2b

Field	Value
ToBeSigned (TBS) MD5	fd290a4891edd36420e082391a96d9b0
ToBeSigned (TBS) SHA1	fe33d6386cb017f4d39d5b1e21861bbc387aae7a
ToBeSigned (TBS) SHA256	57e2af9bbd6fed434ad5df9b194936fc6d3a1b71658bdd31c2d289f8a0f5c2e0
Subject	??=AU, ??=Private Organization, serialNumber=099 321 392, C=AU, ST=New South Wales, L=Surry Hills, O=PassMark Software Pty Ltd, CN=PassMark Software Pty Ltd
ValidFrom	2018-10-18 00:00:00
ValidTo	2021-02-28 12:00:00
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.11
IsCertificateAuthority	False
SerialNumber	0d671c2c3c13676231329afa97b1ec2b
Version	3

Certificate 03f1b4e15f3a82f1149678b3d7d8475c

Field	Value
ToBeSigned (TBS) MD5	83f5de89f641d0fbf60248e10a7b9534
ToBeSigned (TBS) SHA1	382a73a059a08698d6eb98c87e1b36fc750933a4
ToBeSigned (TBS) SHA256	eec58131dc11cd7f512501b15fdbc6074c603b68ca91f7162d5a042054edb0cf
Subject	C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert EV Code Signing CA (SHA2)
ValidFrom	2012-04-18 12:00:00
ValidTo	2027-04-18 12:00:00
Signature	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
SignatureAlgorithmOID	1.2.840.113549.1.1.11
IsCertificateAuthority	True
SerialNumber	03f1b4e15f3a82f1149678b3d7d8475c
Version	3

Imports

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ntoskrnl.exe
HAL.dll

Imported Functions

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DbgPrintEx
RtlGetVersion
KeInitializeEvent
KeWaitForSingleObject
ExAllocatePoolWithTag
ExAllocatePoolWithQuotaTag
ExFreePoolWithTag
MmBuildMdlForNonPagedPool
MmMapLockedPagesSpecifyCache
MmUnmapLockedPages
MmMapIoSpace
MmUnmapIoSpace
IoAllocateErrorLogEntry
IoAllocateMdl
IoBuildDeviceIoControlRequest
IoBuildSynchronousFsdRequest
IofCallDriver
IofCompleteRequest
IoCreateDevice
IoCreateSymbolicLink
IoDeleteDevice
IoDeleteSymbolicLink
IoFreeMdl
IoGetAttachedDeviceReference
IoGetDeviceObjectPointer
IoWriteErrorLogEntry
IoGetDeviceProperty
ObReferenceObjectByHandle
ObReferenceObjectByPointer
RtlAppendUnicodeToString
ZwCreateFile
ZwWriteFile
ZwClose
ZwOpenSection
ZwMapViewOfSection
ZwUnmapViewOfSection
ZwOpenKey
ZwQueryValueKey
MmGetPhysicalMemoryRanges
PsGetProcessId
RtlFillMemoryUlong
KeStackAttachProcess
KeUnstackDetachProcess
IoEnumerateDeviceObjectList
ObQueryNameString
_vsnwprintf
ObReferenceObjectByName
memcpy
memmove
memset
IoFileObjectType
PsProcessType
PsInitialSystemProcess
NtBuildNumber
IoDriverObjectType
KeRevertToUserAffinityThread
KeSetSystemAffinityThread
KeQueryActiveProcessors
KeBugCheckEx
RtlAppendUnicodeStringToString
RtlUnwind
RtlWriteRegistryValue
MmGetSystemRoutineAddress
RtlQueryRegistryValues
RtlInitUnicodeString
RtlIntegerToUnicodeString
ObfDereferenceObject
wcsrchr
WRITE_PORT_USHORT
WRITE_PORT_UCHAR
READ_PORT_ULONG
READ_PORT_USHORT
READ_PORT_UCHAR
KeStallExecutionProcessor
WRITE_PORT_ULONG

Exported Functions

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Sections

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.text
.rdata
.data
PAGE
INIT
.reloc

Signature

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{
  "Certificates": [
    {
      "IsCertificateAuthority": true,
      "SerialNumber": "61204db4000000000027",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.5",
      "Subject": "C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert High Assurance EV Root CA",
      "TBS": {
        "MD5": "8e3ffc222fbcebdbb8b23115ab259be7",
        "SHA1": "ee20bff28ffe13be731c294c90d6ded5aae0ec0e",
        "SHA256": "59826b69bc8c28118c96323b627da59aaca0b142cc5d8bad25a8fcfd399aa821",
        "SHA384": "f2dab7e56a33298654924501499487f6ba72c7d9477476a186e1ed7a9be031fade0e35ac09eff5e56bbbab95ae5374e7"
      },
      "ValidFrom": "2011-04-15 19:45:33",
      "ValidTo": "2021-04-15 19:55:33",
      "Version": 3
    },
    {
      "IsCertificateAuthority": false,
      "SerialNumber": "0d671c2c3c13676231329afa97b1ec2b",
      "Signature": "5c01ed6a6f6c302d1b2ff3c17bae241ce2fcd501196d753b285ea9d44ba291565fc97503fa50ba4b0abba54066e1b04ac66018e8eb06c8104515df0b903f432e04c1d486336929a4d637fe7e06197a75ad7199bfae0a3a66ea6e55cf1ba9b68e33ef35f5b46cef71f5c8b6230d459c2e843a09b01ebe5020852ac9948357f09a66ad78bc60d795fce62fb63288f5550bc6446acbe7fdad31f8dd76045d7ed50bb79dc6ee9333ad8c12b64e2e544f922dfea0586b0d1cb80c37f96fc68b20f95b104f11ef5fe49349829afe35ceecfd22c96b5f89263701f95364d4f0816bcd0bee9e40aa1b956cd4659181e05d0872f4838b3208138b67d9c03faad605f1b924",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
      "Subject": "??=AU, ??=Private Organization, serialNumber=099 321 392, C=AU, ST=New South Wales, L=Surry Hills, O=PassMark Software Pty Ltd, CN=PassMark Software Pty Ltd",
      "TBS": {
        "MD5": "fd290a4891edd36420e082391a96d9b0",
        "SHA1": "fe33d6386cb017f4d39d5b1e21861bbc387aae7a",
        "SHA256": "57e2af9bbd6fed434ad5df9b194936fc6d3a1b71658bdd31c2d289f8a0f5c2e0",
        "SHA384": "feff93a9900bd0c3ac0d46892b5c06dc002eb55bc2daa6c4d62d20491c9f5141771c7563166751af02b2308059449e52"
      },
      "ValidFrom": "2018-10-18 00:00:00",
      "ValidTo": "2021-02-28 12:00:00",
      "Version": 3
    },
    {
      "IsCertificateAuthority": true,
      "SerialNumber": "03f1b4e15f3a82f1149678b3d7d8475c",
      "Signature": "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",
      "SignatureAlgorithmOID": "1.2.840.113549.1.1.11",
      "Subject": "C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert EV Code Signing CA (SHA2)",
      "TBS": {
        "MD5": "83f5de89f641d0fbf60248e10a7b9534",
        "SHA1": "382a73a059a08698d6eb98c87e1b36fc750933a4",
        "SHA256": "eec58131dc11cd7f512501b15fdbc6074c603b68ca91f7162d5a042054edb0cf",
        "SHA384": "4a25018683cabfb8ec2cad136334f37f33c89aa8540326322991d997c8adfb7faf06ab602ebd46630fe75fe3d2edc6b1"
      },
      "ValidFrom": "2012-04-18 12:00:00",
      "ValidTo": "2027-04-18 12:00:00",
      "Version": 3
    }
  ],
  "CertificatesInfo": "",
  "Signer": [
    {
      "Issuer": "C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert EV Code Signing CA (SHA2)",
      "SerialNumber": "0d671c2c3c13676231329afa97b1ec2b",
      "Version": 1
    }
  ],
  "SignerInfo": ""
}

source

last_updated: 2024-04-09