Analysis of GameDriverX64.sys: malicious verdict, risk score 88/100. 4 YARA matches, 10/75 multi-engine detections. SHA256 9ddae47ff968343a. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver GameDriverX64.sys and assigned a verdict of Malicious with a composite risk score of 88/100, indicating malicious indicators (80-100 band).
| Verdict | Malicious (88/100) |
| YARA matches | 4 |
| Multi-engine detections | 10 / 75 |
| File size | 57552 bytes |
| Code-signing signer | DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 |
| Analyzed | 2026-09-06 |
| SHA256 | 9ddae47ff968343a8c32a5344060257fdc08e2a7bdb9a227c8b3a584ee3c9f1e |
| SHA1 | 7556ae58c215b8245a43f764f0676c7a8f0fdd1a |
| MD5 | 8f0577d28c4ff5f71b149f444bfaba8e |
Version resource data embedded in the GameDriverX64.sys PE header, as extracted by the analysis engine.
| File description | GameDriverX64 |
|---|---|
| Product | GameDriverX64 |
| Company | GameDriver |
| Original filename | GameDriverX64.sys |
| File version | 7.23.04.07 |
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 | 100 / 100 |
| Dangerous kernel imports | 100 / 100 |
| IOCTL dispatch surface | 90 / 100 |
| Known-vulnerable corpus | 100 / 100 |
| Code-signing state | 0 / 100 |
| Packing and entropy | 80 / 100 |
| Dynamic behaviour | 0 / 100 |
| CVE cross-reference | 0 / 100 |
Kernel-mode APIs resolved from the Import Address Table of GameDriverX64.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| ZwTerminateProcess | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| ZwOpenProcess | 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 |
| ObRegisterCallbacks | high | Potentially dangerous - could be used for privilege escalation or security bypass |
| ZwDeleteFile | medium | Moderate risk - system modification capability |
| ObReferenceObjectByHandle | medium | Moderate risk - system modification capability |
| KeBugCheckEx | medium | Moderate risk - system modification capability |
| ZwWriteFile | medium | Moderate risk - system modification capability |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| IoDeleteSymbolicLink | low | Standard kernel API - generally benign |
| IoCreateSymbolicLink | low | Standard kernel API - generally benign |
| ZwClose | low | Standard kernel API - generally benign |
| ZwQueryInformationFile | low | Standard kernel API - generally benign |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| RtlInitAnsiString | low | Standard kernel API - generally benign |
| IoCreateDevice | low | Standard kernel API - generally benign |
| KeInitializeEvent | low | Standard kernel API - generally benign |
| KeDelayExecutionThread | low | Standard kernel API - generally benign |
| IoDeleteDevice | low | Standard kernel API - generally benign |
| DbgPrint | low | Standard kernel API - generally benign |
| ZwCreateFile | low | Standard kernel API - generally benign |
| ZwReadFile | low | Standard kernel API - generally benign |
| KeWaitForSingleObject | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
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 |
| 0x0022BB07 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #3777 |
| 0x00227417 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #3333 |
| 0x00223417 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #3333 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x003437E8 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #3578 |
| 0x00802824 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2569 |
| 0x0022EDE8 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #2938 |
| 0x0080C8E9 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #570 |
| 0x0080A1E9 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2170 |
| 0x00340049 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #18 |
| 0x002202E9 | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #186 |
| 0x0022B941 | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #3664 |
| 0x00340254 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #149 |
| 0x008002A2 | medium | METHOD_OUT_DIRECT | FILE_DEVICE_CUSTOM Function #168 |
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 | 0x454D | 0x4600 | 6.51 | CODE, EXEC, READ |
| .rdata | 0x0D74 | 0x0E00 | 4.59 | IDATA, READ |
| .data | 0x168C | 0x0600 | 7.24 | IDATA, READ, WRITE |
| .pdata | 0x0390 | 0x0400 | 7.39 | IDATA, READ |
| PAGE | 0x0510 | 0x0600 | 7.06 | CODE, EXEC, READ |
| INIT | 0x0D74 | 0x0E00 | 5.92 | CODE, EXEC, READ |
| .uo10 | 0x1B30 | 0x1C00 | 5.76 | CODE, EXEC, READ |
| .reloc | 0x0024 | 0x0200 | 0.43 | IDATA, READ, DISCARD |
| .rsrc | 0x02AC | 0x0400 | 2.33 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Not enforced |
| Mitigation score | 100 / 100 |
| Rule | Severity | Detects |
|---|---|---|
| PUA_VULN_Driver_Gamedriver_Gamedriverx_9DDA | medium | Detects vulnerable driver mentioned in known-vulnerable driver corpus project using VersionInfo values from the PE header - GameDriverX64.sys. Investigate matches in context: expected filenames or sta... |
| BYOVD_ProcKill | critical | Process termination EDR killer |
| SUSP_Callbacks | medium | Kernel callback registration |
| MAL_EDRKiller | critical | Generic EDR killer pattern |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1014 | Rootkit | Defense Evasion |
| T1055.001 | Process Injection: DLL Injection | Defense Evasion |
| T1068 | Exploitation for Privilege Escalation | Privilege Escalation |
| T1071 | Application Layer Protocol | Command and Control |
| T1211 | Exploitation for Defense Evasion | Defense Evasion |
| T1489 | Service Stop | Impact |
| T1543.003 | Windows Service | Persistence |
| T1553.002 | Subvert Trust Controls: Code Signing | Defense Evasion |
| T1562.001 | 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 |
| Signer | DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 |
|---|---|
| Signer organisation | DigiCert, Inc. |
| Issuer | DigiCert Trusted Root G4 |
| Serial | 8AD40B260D29C4C9F5ECDA9BD93AED9 |
| Valid from | 2021-04-29 00:00 UTC |
| Valid until | 2036-04-28 23:59 UTC |
| Signature validity | Verified |
Engine angr, status static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.
Corpus match: this hash is present in the known-vulnerable driver corpus DriverShield cross-references during analysis, which is why the score carries a full weighting on that component.
Based on DriverShield static and dynamic analysis, GameDriverX64.sys is flagged as malicious and should be treated as dangerous. Its composite risk score is 88/100 (verdict: malicious). Always validate findings independently before acting.
GameDriverX64.sys has a DriverShield composite risk score of 88/100, placing it in the malicious verdict band. SHA256: 9ddae47ff968343a8c32a5344060257fdc08e2a7bdb9a227c8b3a584ee3c9f1e.
GameDriverX64.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1.
Related: Other drivers signed by DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 · What an IOCTL dispatch code is · How YARA matching feeds the score · BYOVD research index · full driver database · CVE library · code signing atlas