{"Id":"2c7d54ff-7b49-4da8-ae77-00ac6fa2944f","Tags":["HWAuidoOs2Ec.sys","havoc.sys"],"Verified":"TRUE","Author":"Michael Haag","Created":"2026-04-17","MitreID":"T1068","Category":"vulnerable driver","Commands":{"Command":"sc.exe create HWAuidoOs2Ec binPath=C:\\windows\\temp\\HWAuidoOs2Ec.sys type=kernel && sc.exe start HWAuidoOs2Ec","Description":"Huawei HWAuidoOs2Ec.sys is a vulnerable kernel driver from public vulnerable-driver research. Public DragonForce reporting also lists this driver in BYOVD tradecraft used to disable endpoint security tooling. Beazley Security also reported this driver family in an INC ransomware affiliate intrusion; the report does not identify the exact sample hash for this family.","Usecase":"Elevate privileges","Privileges":"kernel","OperatingSystem":"Windows 10"},"Resources":["https://labs.beazley.security/articles/an-inc-ransomware-affiliates-byovd-buffet","https://github.com/magicsword-io/LOLDrivers/issues/325","https://github.com/KeServiceDescriptorTable/vulnerable-drivers","https://www.security.com/threat-intelligence/dragonforce-msteams-backdoor","https://www.huntress.com/blog/w2-malvertising-to-kernel-mode-edr-kill","https://www.welivesecurity.com/en/eset-research/killing-me-gently-inside-gentlemens-edr-killer-framework/","https://github.com/magicsword-io/LOLDrivers/issues/377"],"Detection":[],"Acknowledgement":{"Person":"","Handle":"@rainbowdynamix, @DbgPrint"},"KnownVulnerableSamples":[{"Filename":"HWAuidoOs2Ec.sys","MD5":"79003b510f38ce1ab64e4bfb5e202ba4","SHA1":"ed20f6f55560b34164d010cf32ce6f29dba2a27d","SHA256":"90d2e9e994ed8e964845a26dce741ad43b29ff54cf5faa67271d62d4e24acbc8","Signature":"","Date":"","Publisher":"","Company":"Huawei Device Co., Ltd.","Description":"HWAuidoOs2Ec","Product":"Huawei Audio Driver","ProductVersion":"1.0.0.0","FileVersion":"1.0.0.0","MachineType":"AMD64","OriginalFilename":"HWAuidoOs2Ec.sys","Authentihash":{"MD5":"ae7aa5584b9f8044b12e3d1627e50a7c","SHA1":"5d3b7d7adb28270f9ae7f7b97342cc4a0929e8f2","SHA256":"0539116b397996d77f961309cefae95af4af97fb8b5113acf4459c417cf39668"},"RichPEHeaderHash":{"MD5":"ec809457e9078dd8a4b7ee6c4d70d648","SHA1":"b9d03997f9853069fe0e52239a90d412c0ce919b","SHA256":"35105f2d18adff486d78788b8e54b5c4a71c331252ba59ced6efad5c5ddf3693"},"Sections":{".text":{"Entropy":6.1696685102716895,"Virtual Size":"0xf84"},".rdata":{"Entropy":4.267012173243852,"Virtual Size":"0xc34"},".data":{"Entropy":1.5678688415266202,"Virtual Size":"0x31c"},".pdata":{"Entropy":4.149136757164562,"Virtual Size":"0x2dc"},"PAGE":{"Entropy":6.273633864756592,"Virtual Size":"0x2370"},"INIT":{"Entropy":5.458490841678111,"Virtual Size":"0x700"},".rsrc":{"Entropy":3.313302820377281,"Virtual Size":"0x3a0"},".reloc":{"Entropy":3.4460865862747814,"Virtual Size":"0x2c"}},"MagicHeader":"50 45 0 0","CreationTimestamp":"2022-03-27 21:51:56","InternalName":"HWAuidoOs2Ec","Copyright":"Copyright © Huawei Device Co., Ltd. All rights reserved.","Imports":["ntoskrnl.exe"],"ExportedFunctions":"","ImportedFunctions":["RtlInitUnicodeString","DbgPrint","IofCompleteRequest","IoCreateSymbolicLink","IoDeleteDevice","IoDeleteSymbolicLink","InitSafeBootMode","MmGetSystemRoutineAddress","RtlGetVersion","ExAllocatePoolWithTag","ExFreePoolWithTag","ZwClose","ZwTerminateProcess","ZwOpenProcess","__C_specific_handler","RtlTimeToTimeFields","KeInitializeEvent","ExAcquireFastMutex","ExReleaseFastMutex","ExSystemTimeToLocalTime","PsSetCreateProcessNotifyRoutineEx","ZwCreateKey","ZwSetSecurityObject","IoDeviceObjectType","IoCreateDevice","ObOpenObjectByPointer","RtlGetDaclSecurityDescriptor","RtlGetGroupSecurityDescriptor","RtlGetOwnerSecurityDescriptor","RtlGetSaclSecurityDescriptor","SeCaptureSecurityDescriptor","_snwprintf","RtlLengthSecurityDescriptor","SeExports","RtlCreateSecurityDescriptor","_wcsnicmp","wcschr","RtlAbsoluteToSelfRelativeSD","RtlAddAccessAllowedAce","RtlLengthSid","IoIsWdmVersionAvailable","RtlSetDaclSecurityDescriptor","ZwOpenKey","ZwSetValueKey","ZwQueryValueKey","RtlFreeUnicodeString"],"Signatures":[{"CertificatesInfo":"","SignerInfo":"","Certificates":[{"Subject":"C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Hardware Compatibility Publisher","ValidFrom":"2021-06-17 17:55:59","ValidTo":"2022-06-16 17:55:59","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.11","IsCertificateAuthority":false,"SerialNumber":"33000000c45021ba6ed85a72ad0000000000c4","Version":3,"CertificateType":"Leaf (Code Signing)","IsCodeSigning":true,"IsCA":false,"TBS":{"MD5":"e975b1260aeb42737a8a0bcba0d5c24e","SHA1":"6afd0dea6439a4fad5b95b6e38e665a46f712bb3","SHA256":"6fb4e5b945142cf1513333ceb747c86a52e2fd9e8a5547b05d66c21dfbb62574","SHA384":"29cf23d8694596226f5be6abfce3eb72d702dcb8f4557ef6c9a17b6cc8689b763ed21b885d57ccef2156f3ae16902629"}},{"Subject":"C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Third Party Component CA 2012","ValidFrom":"2012-04-18 23:48:38","ValidTo":"2027-04-18 23:58:38","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.11","IsCertificateAuthority":true,"SerialNumber":"610baac1000000000009","Version":3,"CertificateType":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"a569061297e8e824767dbc3184a69bea","SHA1":"adbb26a587a8f44b4fccaecb306f980d1c55a150","SHA256":"cec1afd0e310c55c1dcc601ab8e172917706aa32fb5eaf826813547fdf02dd46","SHA384":"e947cac936803f5683196e4ff1b259096073395d0b908522ddce90d57597c9f7b57f7ddcdbe021ba863d843c340da8ba"}}],"Signer":[{"SerialNumber":"33000000c45021ba6ed85a72ad0000000000c4","Issuer":"C=US, ST=Washington, L=Redmond, O=Microsoft Corporation, CN=Microsoft Windows Third Party Component CA 2012","Version":1}]}],"LoadsDespiteHVCI":"TRUE","Imphash":"9cfa9662095195fc2607e952710e62ae"},{"Filename":"havoc.sys","MD5":"eef8a950952696b018aa9c6da2f5d7ad","SHA1":"1fa071303fb846308571e64727501fb98b1c2be6","SHA256":"5abe477517f51d81061d2e69a9adebdcda80d36667d0afabe103fda4802d33db","Filesize":47240,"Signature":"Signed","Company":"Huawei Device Co., Ltd.","Description":"HWAuidoOs2Ec","Product":"Huawei Audio Driver","ProductVersion":"1.0.0.0","FileVersion":"1.0.0.0","OriginalFilename":"HWAuidoOs2Ec.sys","Imphash":"543809105fd767866c03705a39fb25a8","Authentihash":{"MD5":"1e4bd23e6cd64176a5602600c92398b6","SHA1":"129a114d49191b7b8663f3e84af8848458fe1e8a","SHA256":"097e26ab94ce6ac36fe5713e0120c805edb048e30bcfa317fd7025f50b761e92"},"RichPEHeaderHash":{"MD5":"46c2fd23a66e7b916e2783e27e89503f","SHA1":"2ba2dc432cd157097970a01333dfe5ce93f94330","SHA256":"355290ae40ad0699b4c2d5d80639cd97c98b6f42664efbf37f0f6279b138f27e"},"Sections":{".text":{"Entropy":6.35819946938083,"Virtual Size":"0x2ed4"},".rdata":{"Entropy":4.401761607315822,"Virtual Size":"0xec4"},".data":{"Entropy":1.4047598783637012,"Virtual Size":"0x61c"},".pdata":{"Entropy":4.257343383367369,"Virtual Size":"0x450"},"PAGE":{"Entropy":6.237332725680902,"Virtual Size":"0x1ea0"},"INIT":{"Entropy":5.3553386411676245,"Virtual Size":"0x976"},".rsrc":{"Entropy":3.313302820377281,"Virtual Size":"0x3a0"},".reloc":{"Entropy":3.6635907381239066,"Virtual Size":"0x34"}},"MagicHeader":"50 45 0 0","CreationTimestamp":"2021-11-15 19:49:21","InternalName":"HWAuidoOs2Ec","Copyright":"Copyright © Huawei Device Co., Ltd. All rights reserved.","MachineType":"AMD64","Imports":["ntoskrnl.exe","HAL.dll","WDFLDR.SYS"],"ExportedFunctions":"","ImportedFunctions":["memcpy_s","wcscat_s","ExAllocatePoolWithTag","ExFreePoolWithTag","MmMapIoSpace","MmUnmapIoSpace","IoWMIOpenBlock","IoWMIQueryAllData","IoWMIExecuteMethod","ObfDereferenceObject","MmGetSystemRoutineAddress","RtlGetVersion","ObReferenceObjectByHandle","ZwClose","ZwTerminateProcess","ZwOpenProcess","__C_specific_handler","PsProcessType","RtlTimeToTimeFields","KeInitializeEvent","ExAcquireFastMutex","ExReleaseFastMutex","ExSystemTimeToLocalTime","PsSetCreateProcessNotifyRoutineEx","KeSetEvent","KeWaitForMultipleObjects","KeWaitForSingleObject","PsCreateSystemThread","PsTerminateSystemThread","_wcsnicmp","InitSafeBootMode","ZwOpenKey","ZwQueryValueKey","ObOpenObjectByPointer","IoDeleteSymbolicLink","ZwSetSecurityObject","IoDeviceObjectType","IoCreateDevice","RtlGetDaclSecurityDescriptor","RtlGetGroupSecurityDescriptor","RtlGetOwnerSecurityDescriptor","RtlGetSaclSecurityDescriptor","SeCaptureSecurityDescriptor","_snwprintf","RtlLengthSecurityDescriptor","SeExports","RtlCreateSecurityDescriptor","wcschr","RtlAbsoluteToSelfRelativeSD","RtlAddAccessAllowedAce","RtlLengthSid","IoIsWdmVersionAvailable","RtlSetDaclSecurityDescriptor","ZwSetValueKey","ZwCreateKey","RtlFreeUnicodeString","IoDeleteDevice","IoCreateSymbolicLink","RtlCopyUnicodeString","IofCompleteRequest","DbgPrint","RtlInitUnicodeString","HalGetBusDataByOffset","WdfVersionBind","WdfVersionUnbind","WdfVersionUnbindClass","WdfVersionBindClass"],"Signatures":[{"CertificatesInfo":"","SignerInfo":"","Certificates":[{"Subject":"C=BE, O=GlobalSign nv,sa, CN=GlobalSign CodeSigning CA , SHA256 , G3","ValidFrom":"2016-06-15 00:00:00","ValidTo":"2024-06-15 00:00:00","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.11","IsCertificateAuthority":true,"SerialNumber":"481b6a0726d2e83f2602d4825acd","Version":3,"CertificateType":"CA","IsCodeSigning":true,"IsCA":true,"TBS":{"MD5":"b35d3f705a99b93f2a1ade225053ed44","SHA1":"4f1dda8d1357ab594cec773c66c05e4bc8085801","SHA256":"06936bac8d2f85d9ce6f7348ea421a1a949219182845192667b0e671fe0e4285","SHA384":"d62c8126b964a1f15546d741362aa5cf56c08a0e998b12f9554dc0ff4dc9d10294f9dfa325c8727d48754ff36b3a9a3b"}},{"Subject":"C=US, O=DigiCert, Inc., CN=DigiCert Timestamp 2021","ValidFrom":"2021-01-01 00:00:00","ValidTo":"2031-01-06 00:00:00","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.11","IsCertificateAuthority":false,"SerialNumber":"0d424ae0be3a88ff604021ce1400f0dd","Version":3,"CertificateType":"Intermediate","IsCodeSigning":false,"IsCA":false,"TBS":{"MD5":"c0189c338449a42fe8358c2c1fbecc60","SHA1":"b8ac0ee6875594b80ad86a6df6dd1fa3048c187c","SHA256":"a43de6baf968a942da017b70769fdb65b3cfb1bbca1f9174da26a7d8aae78ec5","SHA384":"76d3a316a5a106050298418cce3beea16100524723d9e3220b0de51bfb6f1c35a5d4c7cd10b358fef7bf94c3e3562150"}},{"Subject":"C=CN, ST=Guangdong, L=Dongguan, O=Huawei Device Co., Ltd., OU=IT Dept., CN=Huawei Device Co., Ltd.","ValidFrom":"2020-04-08 08:30:19","ValidTo":"2023-04-09 08:30:19","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.11","IsCertificateAuthority":false,"SerialNumber":"4b18d6298c19a073602b9e7b","Version":3,"CertificateType":"Leaf (Code Signing)","IsCodeSigning":true,"IsCA":false,"TBS":{"MD5":"71bdbc8a54046f3058155c9e75814db7","SHA1":"aa25f4b5fbeda167fa4308b99acb47a729cc5787","SHA256":"b5cfc93fce74edf4d63259ad1e0da3e8d115f22723c7f260248337f08144e5b6","SHA384":"6e32db4a37a11ad97e66ae8026979bf32988db16ab723c268086e5e9870d88953000a2c65526d64a7406179571abe3ec"}},{"Subject":"C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert SHA2 Assured ID Timestamping CA","ValidFrom":"2016-01-07 12:00:00","ValidTo":"2031-01-07 12:00:00","Signature":"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","SignatureAlgorithmOID":"1.2.840.113549.1.1.11","IsCertificateAuthority":true,"SerialNumber":"0aa125d6d6321b7e41e405da3697c215","Version":3,"CertificateType":"CA","IsCodeSigning":false,"IsCA":true,"TBS":{"MD5":"8d26184fc613f89aba1cefb30fce1b53","SHA1":"63a7e376bad5ec2e419d514a403bcf46c8d31d95","SHA256":"56b5f0d9db578e3f142921daa387902722a76700375c7e1c4ae0ba004bacaa0c","SHA384":"d8c9691fe9dbe182f07b49b07fbb4f589fa7b38b5c4d21f265d3a2e818f4b1bfb39e03faab2ec05bb10333a99914fb8a"}}],"Signer":[{"SerialNumber":"4b18d6298c19a073602b9e7b","Issuer":"C=BE, O=GlobalSign nv,sa, CN=GlobalSign CodeSigning CA , SHA256 , G3","Version":1}]}]}]}