Analysis of qwavedrv.sys: clean verdict, risk score 26/100. 0 YARA matches. SHA256 706d683caf92c259. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver qwavedrv.sys and assigned a verdict of Clean with a composite risk score of 26/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (26/100) |
| YARA matches | 0 |
| File size | 53248 bytes |
| Analyzed | 2026-03-22 |
| SHA256 | 706d683caf92c259c121222446d34ed43f6e8872407c3615e2ed118acd24d21d |
| SHA1 | 3a16d2ad0159e0c73673bc404766abb392c741cc |
| MD5 | ce51a9a997d2830c6c64a36d7f8d8879 |
Version resource data embedded in the qwavedrv.sys PE header, as extracted by the analysis engine.
| File description | Microsoft Quality Windows Audio Video Experience (qWave) Support Driver |
|---|---|
| Product | Microsoft® Windows® Operating System |
| Company | Microsoft Corporation |
| Original filename | qwavedrv.sys |
| Internal name | qwavedrv.sys |
| File version | 10.0.19041.1 (WinBuild.160101.0800) |
| Copyright | © Microsoft Corporation. All rights reserved. |
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 | 0 / 100 |
| Dangerous kernel imports | 100 / 100 |
| IOCTL dispatch surface | 42 / 100 |
| Known-vulnerable corpus | 0 / 100 |
| Code-signing state | 50 / 100 |
| Packing and entropy | 0 / 100 |
| Dynamic behaviour | 0 / 100 |
| CVE cross-reference | 0 / 100 |
Kernel-mode APIs resolved from the Import Address Table of qwavedrv.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmMapLockedPagesSpecifyCache | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| KeAttachProcess | 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 |
| ZwSetValueKey | medium | Moderate risk - system modification capability |
| ObOpenObjectByPointer | medium | Moderate risk - system modification capability |
| ObReferenceObjectByHandle | medium | Moderate risk - system modification capability |
| ZwCreateKey | medium | Moderate risk - system modification capability |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| ZwClose | low | Standard kernel API - generally benign |
| IoDeleteDevice | low | Standard kernel API - generally benign |
| IoCreateDeviceSecure | low | Standard kernel API - generally benign |
| IoCreateDevice | low | Standard kernel API - generally benign |
| ZwQueryValueKey | low | Standard kernel API - generally benign |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| ZwOpenKey | low | Standard kernel API - generally benign |
| PsGetCurrentProcess | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
| SeAccessCheck | low | Standard kernel API - generally benign |
| ProbeForWrite | 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 |
|---|---|---|---|
| 0x0080B98B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3682 |
| 0x0080828B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #162 |
| 0x0080B58B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3426 |
| 0x00808D8B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #866 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x00220004 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #1 |
| 0x00808389 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #226 |
| 0x00800B1D | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #711 |
| 0x0080C481 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #288 |
| 0x0080EC81 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2848 |
| 0x00340030 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #12 |
| 0x0080248C | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2339 |
| 0x0034BED8 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #4022 |
| 0x003403F4 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #253 |
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 | 0x757D | 0x7600 | 5.89 | CODE, EXEC, READ |
| .rdata | 0x1078 | 0x1200 | 4.45 | IDATA, READ |
| .data | 0x0340 | 0x0400 | 1.26 | IDATA, READ, WRITE |
| .pdata | 0x04E0 | 0x0600 | 3.74 | IDATA, READ |
| .idata | 0x0AFE | 0x0C00 | 4.42 | IDATA, READ |
| PAGE | 0x19B0 | 0x1A00 | 6.2 | CODE, EXEC, READ |
| INIT | 0x0072 | 0x0200 | 1.68 | CODE, EXEC, READ, DISCARD |
| GFIDS | 0x002C | 0x0200 | 0.4 | IDATA, READ, DISCARD |
| .rsrc | 0x0668 | 0x0800 | 2.79 | IDATA, READ, DISCARD |
| .reloc | 0x0710 | 0x0800 | 5.09 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Not enforced |
| Mitigation score | 80 / 100 |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1003.001 | OS Credential Dumping: LSASS Memory | Credential Access |
| T1055.001 | Process Injection: DLL Injection | Defense Evasion |
| T1055.012 | Process Hollowing | Defense Evasion |
| T1068 | Exploitation for Privilege Escalation | Privilege Escalation |
| 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 |
| T1553.006 | Code Signing Policy Modification | Defense Evasion |
| T1562.001 | Impair Defenses: Disable/Modify Tools | Defense Evasion |
| T1569.002 | Service Execution | Execution |
| T1652 | Device Driver Discovery | Discovery |
Engine angr, status no_findings, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.
Based on DriverShield static and dynamic analysis, qwavedrv.sys is assessed as clean, with no notable risk signals. Its composite risk score is 26/100 (verdict: clean). Always validate findings independently before acting.
qwavedrv.sys has a DriverShield composite risk score of 26/100, placing it in the clean verdict band. SHA256: 706d683caf92c259c121222446d34ed43f6e8872407c3615e2ed118acd24d21d.
qwavedrv.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators.
Related: What an IOCTL dispatch code is · BYOVD research index · full driver database · CVE library · code signing atlas