Analysis of VBoxUSB.Sys: clean verdict, risk score 24/100. 1 YARA match, 0/51 multi-engine detections. SHA256 42d926cfb3794f9b. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver VBoxUSB.Sys and assigned a verdict of Clean with a composite risk score of 24/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (24/100) |
| YARA matches | 1 |
| Multi-engine detections | 0 / 51 |
| File size | 43904 bytes |
| Code-signing signer | innotek GmbH |
| Analyzed | 2026-09-06 |
| SHA256 | 42d926cfb3794f9b1e3cb397498696cb687f505e15feb9df11b419c49c9af498 |
| SHA1 | ab2b8602e4baef828b58b995d0889a8e5b8dbd02 |
| MD5 | 6ec468f8d0c17ad2613dc6d53a31f083 |
Version resource data embedded in the VBoxUSB.Sys PE header, as extracted by the analysis engine.
| File description | VirtualBox USB driver |
|---|---|
| Product | VirtualBox USB driver |
| Company | Sun Microsystems, Inc. |
| Original filename | VBoxUSB.Sys |
| Internal name | VBoxUSB.Sys |
| File version | 1.01 |
| Copyright | Sun Microsystems, Inc. |
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 | 5 / 100 |
| Dangerous kernel imports | 69 / 100 |
| IOCTL dispatch surface | 51 / 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 VBoxUSB.Sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmMapLockedPagesSpecifyCache | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| IoBuildDeviceIoControlRequest | low | Standard kernel API - generally benign |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| RtlInitAnsiString | low | Standard kernel API - generally benign |
| DbgPrint | low | Standard kernel API - generally benign |
| KeWaitForSingleObject | low | Standard kernel API - generally benign |
| IoCreateDevice | low | Standard kernel API - generally benign |
| ExFreePool | low | Standard kernel API - generally benign |
| KeSetEvent | low | Standard kernel API - generally benign |
| KeInitializeEvent | low | Standard kernel API - generally benign |
| IoDeleteDevice | 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 |
|---|---|---|---|
| 0x0080B983 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3680 |
| 0x00220013 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #4 |
| 0x0080BE83 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #4000 |
| 0x008087C7 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #497 |
| 0x0080978B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #1506 |
| 0x0080BF83 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #4064 |
| 0x008000C7 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #49 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0080EC81 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2848 |
| 0x0080C481 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #288 |
| 0x0080249C | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2343 |
| 0x003457E8 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #1530 |
| 0x00348B15 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #709 |
| 0x00225725 | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #1481 |
| 0x00225315 | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #1221 |
| 0x003402F4 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #189 |
| 0x0080F2B1 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #3244 |
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 | 0x69D8 | 0x69E0 | 6.1 | CODE, EXEC, READ |
| .rdata | 0x115C | 0x1160 | 5.27 | IDATA, READ |
| .data | 0x0020 | 0x0020 | 0.2 | IDATA, READ, WRITE |
| .pdata | 0x0708 | 0x0720 | 4.47 | IDATA, READ |
| .edata | 0x0049 | 0x0060 | 2.89 | IDATA, READ |
| INIT | 0x065C | 0x0660 | 4.84 | CODE, EXEC, READ, WRITE, DISCARD |
| .rsrc | 0x0358 | 0x0360 | 3.2 | IDATA, READ, DISCARD |
| Control Flow Guard | Not enabled |
|---|---|
| ASLR | Not enabled |
| DEP | Not enabled |
| Integrity check | Not enforced |
| Mitigation score | 5 / 100 |
| Rule | Severity | Detects |
|---|---|---|
| PUA_VULN_Driver_Sunmicrosystemsinc_Vboxusbsys_Virtualboxusbdriver_5B26 | medium | Detects vulnerable driver mentioned in known-vulnerable driver corpus project using VersionInfo values from the PE header - VBoxUSB.Sys. Investigate matches in context: expected filenames or standard ... |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1003.001 | OS Credential Dumping: LSASS Memory | Credential Access |
| 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 |
| T1543.003 | Windows Service | Persistence |
| T1547.001 | Registry Run Keys | Persistence |
| T1553.002 | Subvert Trust Controls: Code Signing | Defense Evasion |
| T1569.002 | System Services: Service Execution | Execution |
| T1652 | Device Driver Discovery | Discovery |
| Signer | innotek GmbH |
|---|---|
| Signer organisation | innotek GmbH |
| Issuer | GlobalSign ObjectSign CA |
| Serial | 10000000001171C092665 |
| Valid from | 2007-12-27 14:37 UTC |
| Valid until | 2010-12-27 14:37 UTC (expired) |
| Signature validity | Not verified |
Engine angr, status static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.
Based on DriverShield static and dynamic analysis, VBoxUSB.Sys is assessed as clean, with no notable risk signals. Its composite risk score is 24/100 (verdict: clean). Always validate findings independently before acting.
VBoxUSB.Sys has a DriverShield composite risk score of 24/100, placing it in the clean verdict band. SHA256: 42d926cfb3794f9b1e3cb397498696cb687f505e15feb9df11b419c49c9af498.
VBoxUSB.Sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by innotek GmbH.
Related: Other drivers signed by innotek GmbH · What an IOCTL dispatch code is · How YARA matching feeds the score · BYOVD research index · full driver database · CVE library · code signing atlas