Analysis of usbprint.sys: suspicious verdict, risk score 58/100. 0 YARA matches. SHA256 6093f4e63f9259e4. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver usbprint.sys and assigned a verdict of Suspicious with a composite risk score of 58/100, indicating some risk signals warranting review (30-59 band).
| Verdict | Suspicious (58/100) |
| YARA matches | 0 |
| File size | 43008 bytes |
| Analyzed | 2026-03-22 |
| SHA256 | 6093f4e63f9259e45ba5cdfad4b5f012c2fe9cffd9565f83ea1732cc59e2e691 |
| SHA1 | 95b2c6a8cd789c46dc6ee53f475f78fcd91a581d |
| MD5 | f7f87f5af3725199cff23c4290116950 |
Version resource data embedded in the usbprint.sys PE header, as extracted by the analysis engine.
| File description | USB Printer driver |
|---|---|
| Product | Microsoft® Windows® Operating System |
| Company | Microsoft Corporation |
| Original filename | usbprint.sys |
| Internal name | usbprint.sys |
| File version | 10.0.19041.4957 (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 | 75 / 100 |
| IOCTL dispatch surface | 87 / 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 usbprint.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| ZwSetValueKey | medium | Moderate risk - system modification capability |
| ZwQueryValueKey | low | Standard kernel API - generally benign |
| IoBuildDeviceIoControlRequest | low | Standard kernel API - generally benign |
| KeWaitForSingleObject | low | Standard kernel API - generally benign |
| ZwOpenKey | low | Standard kernel API - generally benign |
| ExFreePool | low | Standard kernel API - generally benign |
| KeSetEvent | low | Standard kernel API - generally benign |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| RtlInitAnsiString | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| ZwOpenFile | low | Standard kernel API - generally benign |
| ExAllocatePool2 | low | Standard kernel API - generally benign |
| IoCreateDevice | low | Standard kernel API - generally benign |
| IoDeleteDevice | low | Standard kernel API - generally benign |
| KeInitializeEvent | low | Standard kernel API - generally benign |
| ZwClose | 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 |
| 0x008087C7 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #497 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x00803F15 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #4037 |
| 0x003407E8 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #506 |
| 0x0034AB05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #2753 |
| 0x0080EC81 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2848 |
| 0x0080C481 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #288 |
| 0x008086C6 | medium | METHOD_OUT_DIRECT | FILE_DEVICE_CUSTOM Function #433 |
| 0x0022E8CC | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #2611 |
| 0x00340038 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #14 |
| 0x0080E281 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2208 |
| 0x00340398 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #230 |
| 0x0034002E | medium | METHOD_OUT_DIRECT | FILE_DEVICE_DISK Function #11 |
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 | 0x6AA9 | 0x6C00 | 6.19 | CODE, EXEC, READ |
| .rdata | 0x0E30 | 0x1000 | 4.48 | IDATA, READ |
| .data | 0x0158 | 0x0200 | 0.28 | IDATA, READ, WRITE |
| .pdata | 0x048C | 0x0600 | 3.5 | IDATA, READ |
| .idata | 0x0948 | 0x0A00 | 4.36 | IDATA, READ |
| PAGE | 0x0481 | 0x0600 | 5.13 | CODE, EXEC, READ |
| INIT | 0x0292 | 0x0400 | 4.53 | CODE, EXEC, READ, DISCARD |
| GFIDS | 0x0058 | 0x0200 | 0.78 | IDATA, READ, DISCARD |
| .rsrc | 0x0400 | 0x0400 | 3.36 | IDATA, READ, DISCARD |
| .reloc | 0x0558 | 0x0600 | 5.18 | 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 |
|---|---|---|
| T1068 | Exploitation for Privilege Escalation | Privilege Escalation |
| T1112 | Modify Registry | Defense Evasion |
| T1211 | Exploitation for Defense Evasion | Defense Evasion |
| 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 |
| T1569.002 | System Services: Service Execution | Execution |
| T1652 | Device Driver Discovery | Discovery |
Engine angr, status static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 1.
Based on DriverShield static and dynamic analysis, usbprint.sys shows some suspicious signals and warrants manual review. Its composite risk score is 58/100 (verdict: suspicious). Always validate findings independently before acting.
usbprint.sys has a DriverShield composite risk score of 58/100, placing it in the suspicious verdict band. SHA256: 6093f4e63f9259e45ba5cdfad4b5f012c2fe9cffd9565f83ea1732cc59e2e691.
usbprint.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