amdkfd.sys - Vulnerable (78/100) - DriverShield Analysis

Analysis of amdkfd.sys: vulnerable verdict, risk score 78/100. 3 YARA matches, 0/76 multi-engine detections. SHA256 1fc6c28b423f005a. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

amdkfd.sys - Analysis Report

DriverShield analyzed the Windows kernel driver amdkfd.sys and assigned a verdict of Vulnerable with a composite risk score of 78/100, indicating a known or likely vulnerability surface (60-79 band).

Verdict	Vulnerable (78/100)
YARA matches	3
Multi-engine detections	0 / 76
File size	251640 bytes
Code-signing signer	Symantec Time Stamping Services CA - G2
Analyzed	2026-11-05
SHA256	1fc6c28b423f005a4fdf2d7087d9c4928226d6d2740420a3a2371fc5ba9df98c
SHA1	3489f067946dd1f69e5b06c53d81d13e96863f22
MD5	45446d4952bda07f7f586e7419223f81

Driver identity

Version resource data embedded in the amdkfd.sys PE header, as extracted by the analysis engine.

File description	AMD HSA Driver
Product	AMD driver
Company	Advanced Micro Devices, Inc.
Original filename	amdkfd.sys
Internal name	amdkfd.sys
File version	8.14.01.43
Copyright	Copyright (C) 2011-2013 Advanced Micro Devices, Inc.

How the 78/100 score breaks down

Each component is scored 0-100 and then weighted into the composite. See the analysis methodology for the exact formula.

Component	Sub-score
Multi-engine consensus	0 / 100
YARA signature matches	85 / 100
Dangerous kernel imports	100 / 100
IOCTL dispatch surface	100 / 100
Known-vulnerable corpus	0 / 100
Code-signing state	80 / 100
Packing and entropy	0 / 100
Dynamic behaviour	0 / 100
CVE cross-reference	0 / 100

Kernel imports (40)

Kernel-mode APIs resolved from the Import Address Table of amdkfd.sys, ranked by exploitation relevance.

API	Risk	Why it matters
MmMapLockedPagesSpecifyCache	critical	Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination
MmMapIoSpace	critical	Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination
MmGetPhysicalAddress	high	Potentially dangerous - could be used for privilege escalation or security bypass
MmAllocateContiguousMemory	high	Potentially dangerous - could be used for privilege escalation or security bypass
PsSetCreateProcessNotifyRoutine	high	Potentially dangerous - could be used for privilege escalation or security bypass
MmGetSystemRoutineAddress	high	Potentially dangerous - could be used for privilege escalation or security bypass
PsLookupProcessByProcessId	high	Potentially dangerous - could be used for privilege escalation or security bypass
MmAllocateContiguousMemorySpecifyCache	high	Potentially dangerous - could be used for privilege escalation or security bypass
ZwCreateKey	medium	Moderate risk - system modification capability
ZwSetValueKey	medium	Moderate risk - system modification capability
ZwQuerySystemInformation	medium	Moderate risk - system modification capability
KeBugCheckEx	medium	Moderate risk - system modification capability
MmUnmapIoSpace	medium	Moderate risk - system modification capability
ZwWriteFile	medium	Moderate risk - system modification capability
IoGetDeviceObjectPointer	medium	Moderate risk - system modification capability
ObOpenObjectByPointer	medium	Moderate risk - system modification capability
ObReferenceObjectByHandle	medium	Moderate risk - system modification capability
KeWaitForSingleObject	low	Standard kernel API - generally benign
IoCreateSymbolicLink	low	Standard kernel API - generally benign
IoDeleteSymbolicLink	low	Standard kernel API - generally benign
RtlInitAnsiString	low	Standard kernel API - generally benign
KeSetEvent	low	Standard kernel API - generally benign
ProbeForWrite	low	Standard kernel API - generally benign
ZwOpenFile	low	Standard kernel API - generally benign
IoCreateDevice	low	Standard kernel API - generally benign
KeInitializeEvent	low	Standard kernel API - generally benign
ZwQueryValueKey	low	Standard kernel API - generally benign
KeDelayExecutionThread	low	Standard kernel API - generally benign

Showing the 28 highest-relevance imports of 40 resolved.

IOCTL dispatch codes (40)

Control codes reachable through the driver dispatch routine. Codes tied to published exploit code are flagged, since they are the primary Bring Your Own Vulnerable Driver (BYOVD) entry points.

Code	Severity	Transfer	Description
0x00222000	medium (known exploit)	METHOD_BUFFERED	Driver communication init
0x008090FF	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #1087
0x0080828B	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #162
0x0080808B	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #34
0x00347983	high	METHOD_NEITHER	FILE_DEVICE_DISK Function #3680
0x0080888B	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #546
0x00347E83	high	METHOD_NEITHER	FILE_DEVICE_DISK Function #4000
0x008080C7	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #49
0x0080AB8B	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #2786
0x00808D8B	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #866
0x002200F0	medium	METHOD_BUFFERED	FILE_DEVICE_UNKNOWN Function #60
0x00801078	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #1054
0x008024AC	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2347
0x0080928D	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #1187
0x00802484	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2337
0x0080B789	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #3554
0x003404B8	medium	METHOD_BUFFERED	FILE_DEVICE_DISK Function #302
0x00802824	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2569
0x0080C481	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #288
0x00808989	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #610
0x00809B8D	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #1763
0x00221041	medium	METHOD_IN_DIRECT	FILE_DEVICE_UNKNOWN Function #1040
0x00804041	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #16
0x0080EC81	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #2848

Showing 24 of 40 extracted control codes.

PE sections

Section layout and Shannon entropy. High entropy in a code section is a packing or encryption indicator.

Section	Virtual size	Raw size	Entropy	Flags
.text	0xD680	0xD800	6.07	CODE, EXEC, READ
_OSSVC	0x1E8B	0x2000	5.88	CODE, EXEC, READ
_IODEV	0x2498	0x2600	5.72	CODE, EXEC, READ
_DEVICE	0x38CC	0x3A00	5.75	CODE, EXEC, READ
_PROC	0x25A3	0x2600	5.96	CODE, EXEC, READ
_MEMMGR	0x204E	0x2200	5.8	CODE, EXEC, READ
_FADDR	0x16F9	0x1800	5.8	CODE, EXEC, READ
_CI_DEV	0x2AF1	0x2C00	5.9	CODE, EXEC, READ
_LOGGER	0x02C6	0x0400	4.42	CODE, EXEC, READ
.rdata	0x614C	0x6200	4.82	IDATA, READ
.data	0x11CC	0x0800	1.75	IDATA, READ, WRITE
.pdata	0x3480	0x3600	5.45	IDATA, READ
PAGE	0x5AC4	0x5C00	6.13	CODE, EXEC, READ
PAGE_DEV	0x02D0	0x0400	4.53	CODE, EXEC, READ
PAGE_TOP	0x1DCC	0x1E00	6.24	CODE, EXEC, READ
PAGE_MEM	0x1428	0x1600	5.76	CODE, EXEC, READ
PAGE_DBG	0x05C8	0x0600	5.56	CODE, EXEC, READ
PAGE_PMC	0x1B83	0x1C00	6.24	CODE, EXEC, READ
PAGE_DEV	0x0860	0x0A00	5.33	CODE, EXEC, READ
INIT	0x19E2	0x1A00	5.82	CODE, EXEC, READ, WRITE, DISCARD
.rsrc	0x2220	0x2400	3.76	IDATA, READ, DISCARD
.reloc	0x0916	0x0A00	4.04	IDATA, READ, DISCARD

Exploit mitigations

Control Flow Guard	Not enabled
ASLR	Enabled
DEP	Enabled
Integrity check	Not enforced
Mitigation score	55 / 100

No CFG - Control Flow Guard is not enabled. Indirect call targets are not validated, making the driver susceptible to control flow hijacking via corrupted function pointers or vtables.
ASLR Enabled - Address Space Layout Randomization is active - base address is randomized on each load.
DEP/NX Enabled - Data Execution Prevention is active - non-executable pages cannot be executed.
Expired Certificate - The driver is signed but the certificate has expired. Windows may still load it depending on revocation policy.

YARA rule matches (3)

Rule	Severity	Detects
BYOVD_MemRW	critical	Phys memory mapping + device creation
SUSP_PhysMem	high	Physical memory mapping
SUSP_Callbacks	medium	Kernel callback registration

MITRE ATT&CK techniques (19)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1003	OS Credential Dumping	Credential Access
T1003.001	OS Credential Dumping: LSASS Memory	Credential Access
T1006	Direct Volume Access	Defense Evasion
T1014	Rootkit	Defense Evasion
T1055.001	Process Injection: DLL Injection	Defense Evasion
T1055.012	Process Hollowing	Defense Evasion
T1068	Exploitation for Privilege Escalation	Privilege Escalation
T1071	Application Layer Protocol	Command and Control
T1112	Modify Registry	Defense Evasion
T1211	Exploitation for Defense Evasion	Defense Evasion
T1489	Service Stop	Impact
T1543.003	Windows Service	Persistence
T1547.001	Registry Run Keys	Persistence
T1553.002	Subvert Trust Controls: Code Signing	Defense Evasion
T1562.001	Impair Defenses: Disable/Modify Tools	Defense Evasion
T1562.006	Indicator Blocking	Defense Evasion
T1564.001	Hidden Files and Directories	Defense Evasion
T1569.002	Service Execution	Execution
T1652	Device Driver Discovery	Discovery

Code-signing chain

Signer	Symantec Time Stamping Services CA - G2
Signer organisation	Symantec Corporation
Issuer	Thawte Timestamping CA
Serial	7E93EBFB7CC64E59EA4B9A77D406FC3B
Valid from	2012-12-21 00:00 UTC
Valid until	2020-12-30 23:59 UTC (expired)
Signature validity	Not verified

Certificate revision: 0x0200
Certificate type: PKCS#7
Chain: Symantec Time Stamping Services Signer - G4
Chain: Advanced Micro Devices, Inc.
Chain: VeriSign Class 3 Public Primary Certification Authority - G5
Chain: VeriSign Class 3 Code Signing 2010 CA

Symbolic execution

Engine angr, status static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.

Frequently asked questions about amdkfd.sys

Is amdkfd.sys safe?

Based on DriverShield static and dynamic analysis, amdkfd.sys is flagged as vulnerable and is a potential Bring Your Own Vulnerable Driver (BYOVD) risk. Its composite risk score is 78/100 (verdict: vulnerable). Always validate findings independently before acting.

What is the risk score of amdkfd.sys?

amdkfd.sys has a DriverShield composite risk score of 78/100, placing it in the vulnerable verdict band. SHA256: 1fc6c28b423f005a4fdf2d7087d9c4928226d6d2740420a3a2371fc5ba9df98c.

What is amdkfd.sys?

amdkfd.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by Symantec Time Stamping Services CA - G2.