{"DetectionScope":"context-only","ResearchEvidence":{"Id":"d4eb6ed4-c23f-45a9-9891-5aa8f218b863","Tags":["pcdsrvc_x64.sys"],"Verified":"TRUE","Author":"Michael Haag","Created":"2026-06-16","MitreID":"T1068","CVE":"CVE-2019-12280","Category":"vulnerable driver","Commands":{"Command":"sc.exe create pcdsrvc_x64 binPath=C:\\windows\\temp\\pcdsrvc_x64.sys type=kernel && sc.exe start pcdsrvc_x64","Description":"PC-Doctor pcdsrvc_x64.sys is listed as a KDU provider for Dell PC Doctor / SupportAssist driver abuse. The driver family is associated with CVE-2019-12280 and exposes kernel access primitives used by KDU as a provider for kernel memory operations.","Usecase":"Access privileged kernel primitives through a KDU-supported vulnerable driver provider.","Privileges":"kernel","OperatingSystem":"Windows 10, Windows 11"},"Resources":["https://github.com/hfiref0x/KDU/blob/master/Help/providers.md","https://github.com/hsheric0210/SharpKernel/blob/main/provider-list.md"],"Detection":[],"Acknowledgement":{"Person":"KDU Project / SharpKernel","Handle":"@hfiref0x / @hsheric0210"},"KnownVulnerableSamples":[{"Filename":"pcdsrvc_x64.sys","SHA256":"1d053020079124ac526d84affb17bf4a1563ecd872c83b4b6299c9aa6a732557","MD5":"4b5f5774ff1c577b9515fdd2b5c535c5","SHA1":"d0a228ed8af190dec0c1a812e212f5e68ee3b43e","Imphash":"ee80920dc13af08a91dc574363231916","Authentihash":{"MD5":"115aaed3d6a380b9e5cbf1fc61d453f5","SHA1":"85d493f5636b46f6c4f8b1028f8e8659f31dc562","SHA256":"61abb8bf6498adf31f9bbeb4f25f97c2003dc6c9d5580d84361b2be693ca4676"},"RichPEHeaderHash":{"MD5":"41fd9039432a239ae36e81ef695344e6","SHA1":"7e8f61ff9beb21a27c56c93a15eceb3401089aca","SHA256":"fe9bd893c7d6e9fbc92e100432285f50754f5561b094c96abc0e1db7f2e35307"},"Sections":{".text":{"Entropy":6.321089223652831,"Virtual Size":"0x19f1"},"page":{"Entropy":6.225888384491914,"Virtual Size":"0x12a1"},"init":{"Entropy":4.967022633704622,"Virtual Size":"0xa0"},".rdata":{"Entropy":4.622345669662589,"Virtual Size":"0x4c0"},".data":{"Entropy":0.39234506256522045,"Virtual Size":"0x178"},".pdata":{"Entropy":4.104916074740468,"Virtual Size":"0x1ec"},"INIT":{"Entropy":5.022758952522053,"Virtual Size":"0x49a"},".rsrc":{"Entropy":3.18927680471113,"Virtual Size":"0x2f0"},".reloc":{"Entropy":1.207804546973894,"Virtual Size":"0x48"}},"MagicHeader":"50 45 0 0","CreationTimestamp":"2011-05-09 18:20:44","Description":"Kernel Driver","Company":"PC-Doctor, Inc.","InternalName":"PCDSRVC","OriginalFilename":"pcdsrvc","FileVersion":"6.2.2.0","Product":"","ProductVersion":"0.0.0.0","Copyright":"Copyright PC-Doctor© 2002-2010","MachineType":"AMD64","Imports":["ntoskrnl.exe","HAL.dll"],"ExportedFunctions":"","ImportedFunctions":["IoCreateDevice","IoBuildDeviceIoControlRequest","RtlAnsiStringToUnicodeString","KeInitializeEvent","RtlInitAnsiString","IoGetDeviceObjectPointer","ExFreePool","KeWaitForSingleObject","ObfDereferenceObject","RtlCopyUnicodeString","MmUnmapIoSpace","MmMapIoSpace","IoFreeMdl","MmProbeAndLockPages","MmUnlockPages","IoAllocateMdl","IoGetAttachedDeviceReference","RtlGetVersion","KeBugCheckEx","IofCompleteRequest","RtlAppendUnicodeStringToString","ExAllocatePool","RtlFreeUnicodeString","IoDeleteDevice","IofCallDriver","RtlInitUnicodeString","__C_specific_handler","KeStallExecutionProcessor","HalGetBusData","HalSetBusData","HalGetBusDataByOffset","HalSetBusDataByOffset","KeQueryPerformanceCounter"],"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, O=VeriSign, Inc., CN=VeriSign Time Stamping Services CA","ValidFrom":"2003-12-04 00:00:00","ValidTo":"2013-12-03 23:59:59","Signature":"4a6bf9ea58c2441c318979992b96bf82ac01d61c4ccdb08a586edf0829a35ec8ca9313e704520def47272f0038b0e4c9934e9ad4226215f73f37214f703180f18b3887b3e8e89700fecf55964e24d2a9274e7aaeb76141f32acee7c9d95eddbb2b853eb59db5d9e157ffbeb4c57ef5cf0c9ef097fe2bd33b521b1b3827f73f4a","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"47bf1995df8d524643f7db6d480d31a4","Version":3,"CertificateType":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"518d2ea8a21e879c942d504824ac211c","SHA1":"21ce87d827077e61abddf2beba69fde5432ea031","SHA256":"1ec3b4f02e03930a470020e0e48d24b84678bb558f46182888d870541f5e25c7","SHA384":"53e346bbde23779a5d116cc9d86fdd71c97b1f1b343439f8a11aa1d3c87af63864bb8488a5aeb2d0c26a6a1e0b15f03f"}},{"Subject":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)04, CN=VeriSign Class 3 Code Signing 2004 CA","ValidFrom":"2004-07-16 00:00:00","ValidTo":"2014-07-15 23:59:59","Signature":"ae3a17b84a7b55fa6455ec40a4ed494190999c89bcaf2e1dca7823f91c190f7feb68bc32d98838dedc3fd389b43fb18296f1a45abaed2e26d3de7c016e000a00a4069211480940f91c1879672324e0bbd5e150ae1bf50edde02e81cd80a36c524f9175558aba22f2d2ea4175882f63557d1e545a9559cad93481c05f5ef67ab5","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":true,"SerialNumber":"4191a15a3978dfcf496566381d4c75c2","Version":3,"CertificateType":"CA","IsCodeSigning":true,"IsCA":true,"TBS":{"MD5":"41011f8d0e7c7a6408334ca387914c61","SHA1":"c7fc1727f5b75a6421a1f95c73bbdb23580c48e5","SHA256":"88dd3952638ee82738c03168e6fd863fe4eab1059ee5e2926ad8cb587c255dc0","SHA384":"a00aa5ed457c41e37967882644d63366bae014f03a986576d8514164d7027acf7d0b5e03d764db2558f60db148954459"}},{"Subject":"C=US, ST=Nevada, O=PC,Doctor, Inc., OU=Digital ID Class 3 , Microsoft Software Validation v2, CN=PC,Doctor, Inc.","ValidFrom":"2009-01-06 00:00:00","ValidTo":"2012-02-02 23:59:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.5","IsCertificateAuthority":false,"SerialNumber":"49e2bedc8e90afdb8ff4ff3320fbd9e4","Version":3,"CertificateType":"Leaf (Code Signing)","IsCodeSigning":true,"IsCA":false,"TBS":{"MD5":"699b0270a50215509480040201a5e953","SHA1":"941595518dc9f062627da1568f1065f88d1dec1c","SHA256":"b0bdb5924e54335d3210323d353b53cd3ddf93f2ccc0ba1f1b6ab7565cc08e30","SHA384":"315be44b0da8c84c5e58850f087a4eea8af677eb2182cdbf749ccd162d4baa8dc25a4729ecc8e6f594216ee79fdd0793"}},{"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":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"53c41bc1164e09e0cd1617a5bf913efd","SHA1":"93c03aac8951d494ecd5696b1c08658541b18727","SHA256":"40bddadac24dc61ca4fb5cab2a2bc5d876bc36808311039a7a3e1a4066f7489b","SHA384":"f51d4e75ba638f7314cd59b8d6d45f3b34d35ce6986e9d205cd6f333e8e8d8e9c91f636e6bc84731b6661673f40963d8"}}],"Signer":[{"SerialNumber":"49e2bedc8e90afdb8ff4ff3320fbd9e4","Issuer":"C=US, O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Terms of use at https://www.verisign.com/rpa (c)04, CN=VeriSign Class 3 Code Signing 2004 CA","Version":1}]}]}]}}