Analysis of WindowsTrustedRTProxy.sys: clean verdict, risk score 6/100. 0 YARA matches. SHA256 090c4ce6b76b3904. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver WindowsTrustedRTProxy.sys and assigned a verdict of Clean with a composite risk score of 6/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (6/100) |
| YARA matches | 0 |
| File size | 18920 bytes |
| Code-signing signer | Microsoft Windows Hardware Abstraction Layer Publisher |
| Analyzed | 2026-03-22 |
| SHA256 | 090c4ce6b76b3904b5ae73e4f1eebce619194c358874d7584537012f954c54be |
| SHA1 | bda0ab525598cb1a5fd9f81258033d1c41f8e4f2 |
| MD5 | 982774b74ee1419d641ceb66e394a4ba |
Version resource data embedded in the WindowsTrustedRTProxy.sys PE header, as extracted by the analysis engine.
| File description | Windows Trusted Runtime Service Proxy Driver |
|---|---|
| Product | Microsoft® Windows® Operating System |
| Company | Microsoft Corporation |
| Original filename | WindowsTrustedRTProxy.sys |
| Internal name | WindowsTrustedRTProxy.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 | 0 / 100 |
| IOCTL dispatch surface | 12 / 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-mode APIs resolved from the Import Address Table of WindowsTrustedRTProxy.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| DbgPrintEx | 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 |
|---|---|---|---|
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0022570D | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #1475 |
| 0x0080EC81 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2848 |
| 0x003403F0 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #252 |
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 | 0x05F5 | 0x0600 | 5.68 | CODE, EXEC, READ |
| .rdata | 0x08F0 | 0x0A00 | 4.62 | IDATA, READ |
| .data | 0x03D8 | 0x0200 | 0.82 | IDATA, READ, WRITE |
| .pdata | 0x00B4 | 0x0200 | 1.49 | IDATA, READ |
| .idata | 0x01BC | 0x0200 | 3.39 | IDATA, READ |
| PAGE | 0x0165 | 0x0200 | 4.64 | CODE, EXEC, READ |
| INIT | 0x00DA | 0x0200 | 3.14 | CODE, EXEC, READ, DISCARD |
| GFIDS | 0x0014 | 0x0200 | 0.18 | IDATA, READ, DISCARD |
| .rsrc | 0x0460 | 0x0600 | 2.62 | IDATA, READ, DISCARD |
| .reloc | 0x00D8 | 0x0200 | 1.7 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Not enforced |
| Mitigation score | 85 / 100 |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1071 | Application Layer Protocol | Command and Control |
| T1543.003 | Windows Service | Persistence |
| T1652 | Device Driver Discovery | Discovery |
| Signer | Microsoft Windows Hardware Abstraction Layer Publisher |
|---|---|
| Signer organisation | Microsoft Corporation |
| Issuer | Microsoft Code Signing PCA 2010 |
| Serial | 33000002C62F0ED5E7DA67C4E20000000002C6 |
| Valid from | 2019-05-02 21:25 UTC |
| Valid until | 2020-05-02 21:25 UTC (expired) |
| Signature validity | Not verified |
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, WindowsTrustedRTProxy.sys is assessed as clean, with no notable risk signals. Its composite risk score is 6/100 (verdict: clean). Always validate findings independently before acting.
WindowsTrustedRTProxy.sys has a DriverShield composite risk score of 6/100, placing it in the clean verdict band. SHA256: 090c4ce6b76b3904b5ae73e4f1eebce619194c358874d7584537012f954c54be.
WindowsTrustedRTProxy.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by Microsoft Windows Hardware Abstraction Layer Publisher.
Related: Other drivers signed by Microsoft Windows Hardware Abstraction Layer Publisher · What an IOCTL dispatch code is · BYOVD research index · full driver database · CVE library · code signing atlas