{"Id":"a2c3f6e9-25a5-4b75-8c6b-ad2d4e155822","Tags":["directio.sys"],"Verified":"TRUE","Author":"Michael Haag","Created":"2023-07-22","MitreID":"T1068","CVE":[""],"Category":"vulnerable driver","Commands":{"Command":"","Description":"Confirmed vulnerable driver from Microsoft Block List","OperatingSystem":"Windows","Privileges":"kernel","Usecase":"Elevate privileges"},"Resources":["https://gist.github.com/mgraeber-rc/1bde6a2a83237f17b463d051d32e802c"],"Detection":[{"type":"","value":""}],"Acknowledgement":{"Handle":"","Person":""},"KnownVulnerableSamples":[{"Authentihash":{"MD5":"6f37ada0b6fac68e49db4573cca8a982","SHA1":"ebf8c7dc8292950acc260a0e473678ae3c56b210","SHA256":"43b7715e38449bf82ad0bb6b11d03da42150c1ee23148c5f396cc4ab1001622d"},"Company":"","Copyright":"","CreationTimestamp":"2010-06-29 20:26:39","Date":"","Description":"","ExportedFunctions":"","FileVersion":"","Filename":"","ImportedFunctions":["IoAllocateErrorLogEntry","DbgPrint","ZwCreateFile","IofCallDriver","ZwOpenKey","IoGetDeviceObjectPointer","ZwQueryValueKey","ZwUnmapViewOfSection","ExAllocatePoolWithTag","ExAllocatePool","IoWriteErrorLogEntry","ZwClose","IoBuildDeviceIoControlRequest","RtlAppendUnicodeStringToString","IoDeleteSymbolicLink","IofCompleteRequest","ExFreePoolWithTag","ObReferenceObjectByHandle","KeWaitForSingleObject","RtlWriteRegistryValue","NtBuildNumber","ZwMapViewOfSection","IoCreateSymbolicLink","RtlInitUnicodeString","ObfDereferenceObject","RtlIntegerToUnicodeString","IoDeleteDevice","IoCreateDevice","RtlAppendUnicodeToString","MmGetPhysicalMemoryRanges","KeInitializeEvent","RtlQueryRegistryValues","ZwWriteFile","ZwOpenSection","ObReferenceObjectByPointer","PsGetProcessId","KeQueryActiveProcessors","KeLeaveCriticalRegion","MmGetSystemRoutineAddress","KdSystemDebugControl","KeEnterCriticalRegion","KdDebuggerEnabled","KeBugCheckEx"],"Imports":["ntoskrnl.exe"],"InternalName":"","MD5":"6ba44f6ab055d6827a3ba43b215a7e13","MachineType":"AMD64","MagicHeader":"50 45 0 0","OriginalFilename":"","PDBPath":"","Product":"","ProductVersion":"","Publisher":"","RichPEHeaderHash":{"MD5":"8193c37da7962d923239cec2ac2dc04b","SHA1":"350f748608e3f21d4329c72bbaec93c5b26a5613","SHA256":"916a2d46d6b3fca2c7a378ae3b1c286d278a561bfa67dcba045e66e007682657"},"SHA1":"750f1e91d04c25aff8825fb2e3b8341212a431f0","SHA256":"e6a7a497010579fde69cd52bed8de28db610c33bbc5ce0774459dcf64657b802","Sections":{".text":{"Entropy":5.917471028336092,"Virtual Size":"0x31b4"},".rdata":{"Entropy":4.1902561805972045,"Virtual Size":"0x2e8"},".data":{"Entropy":0.8808638227277628,"Virtual Size":"0x130"},".pdata":{"Entropy":3.611861232997776,"Virtual Size":"0xa8"},"INIT":{"Entropy":5.103288754954153,"Virtual Size":"0x5b6"}},"Signature":"","Signatures":[{"CertificatesInfo":"","SignerInfo":"","Certificates":[{"Subject":"C=US, O=VeriSign, Inc., CN=VeriSign Time Stamping Services Signer , G2","ValidFrom":"2007-06-15 00:00:00","ValidTo":"2012-06-14 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"3825d7faf861af9ef490e726b5d65ad5","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"d6c7684e9aaa508cf268335f83afe040","SHA1":"18066d20ad92409c567cdfde745279ff71c75226","SHA256":"a612fb22ce8be6dab75e47c98508f98496583e79c9c97b936a8caee9ea9f3fff","SHA384":"35c249d6ad0261a6229b2a727067ac6ba32a5d24b30b9249051f748c7735fbe2ec2ef26a702c50df1790fbe32a65aee7"}},{"Subject":"C=US, 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Software Pty Ltd","ValidFrom":"2009-09-22 00:00:00","ValidTo":"2012-10-18 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"38e7fa0db1a398f805bb85a69171dc9d","Version":3,"CertificateType":"Leaf (Code 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23:59:59","Signature":"8b03c0dd94d841a26169b015a878c730c6903c7e42f724b6e4837317047f04109ca1e2fa812febc0ca44e772e050b6551020836e9692e49a516ab43731dca52deb8c00c71d4fe74d32ba85f84ebefa675565f06abe7aca64381a101078457631f3867a030f60c2b35d9df68b6676821b59e183e5bd49a53856e5de41770e580f","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"655226e1b22e18e1590f2985ac22e75c","Version":3,"CertificateType":"CA","IsCodeSigning":true,"IsCA":true,"TBS":{"MD5":"650704c342850095f3288eaf791147d4","SHA1":"4cdc38c800761463749c3cbd94a12f32e49877bf","SHA256":"07b8f662558ec85b71b43a79c6e94698144f4ced2308af21e7ba1e5d461da214","SHA384":"2a271d052213438467d09d60eaa4010c8642fff3eb0070e0cf9969428713c8fdc066b90996d594dd3136f5bd0af5a22a"}},{"Subject":"C=US, O=VeriSign, Inc., OU=Class 3 Public Primary Certification Authority","ValidFrom":"2006-05-23 17:01:29","ValidTo":"2016-05-23 17:11:29","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"610c120600000000001b","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"53c41bc1164e09e0cd1617a5bf913efd","SHA1":"93c03aac8951d494ecd5696b1c08658541b18727","SHA256":"40bddadac24dc61ca4fb5cab2a2bc5d876bc36808311039a7a3e1a4066f7489b","SHA384":"f51d4e75ba638f7314cd59b8d6d45f3b34d35ce6986e9d205cd6f333e8e8d8e9c91f636e6bc84731b6661673f40963d8"}}],"Signer":[{"SerialNumber":"38e7fa0db1a398f805bb85a69171dc9d","Issuer":"C=US, 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