Analysis of ibtusb.sys: suspicious verdict, risk score 33/100. 0 YARA matches, 0/75 multi-engine detections. SHA256 41b01cb0b33cc06a. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver ibtusb.sys and assigned a verdict of Suspicious with a composite risk score of 33/100, indicating some risk signals warranting review (30-59 band).
| Verdict | Suspicious (33/100) |
| YARA matches | 0 |
| Multi-engine detections | 0 / 75 |
| File size | 10530712 bytes |
| Code-signing signer | Sectigo Public Code Signing Root R46 |
| Analyzed | 2026-06-24 |
| SHA256 | 41b01cb0b33cc06a3ca1e9c9a40b4e1893a92644eb3c6eb049c549ec0ac2bb58 |
| SHA1 | 19ef5a08a3e1c547179bce88ec770617a18a8dde |
| MD5 | a6e6b28bcb4066876e9ae967c3c23bf2 |
Version resource data embedded in the ibtusb.sys PE header, as extracted by the analysis engine.
| File description | Intel(R) Wireless Bluetooth(R) Filter Driver |
|---|---|
| Product | Intel(R) Wireless Bluetooth(R) |
| Company | Intel Corporation |
| Original filename | ibtusb.sys |
| Internal name | Intel(R) Wireless Bluetooth(R) Filter Driver |
| File version | 23.90.0.8 |
| Copyright | Intel Corporation (C) 2022 |
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 | 93 / 100 |
| IOCTL dispatch surface | 100 / 100 |
| Known-vulnerable corpus | 0 / 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 ibtusb.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmMapLockedPagesSpecifyCache | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| MmGetSystemRoutineAddress | high | Potentially dangerous - could be used for privilege escalation or security bypass |
| IoGetDeviceObjectPointer | medium | Moderate risk - system modification capability |
| NtQuerySystemInformation | medium | Moderate risk - system modification capability |
| KeInitializeEvent | low | Standard kernel API - generally benign |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| ZwClose | low | Standard kernel API - generally benign |
| KeWaitForSingleObject | low | Standard kernel API - generally benign |
| IoBuildDeviceIoControlRequest | low | Standard kernel API - generally benign |
| KeDelayExecutionThread | low | Standard kernel API - generally benign |
| DbgPrintEx | low | Standard kernel API - generally benign |
| ZwReadFile | low | Standard kernel API - generally benign |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| ZwQueryInformationFile | low | Standard kernel API - generally benign |
| DbgPrint | low | Standard kernel API - generally benign |
| ZwOpenFile | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
| KeSetEvent | low | Standard kernel API - generally benign |
| ExFreePool | 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 |
|---|---|---|---|
| 0x0080808B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #34 |
| 0x0080840F | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #259 |
| 0x0080B60F | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3459 |
| 0x00220013 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #4 |
| 0x0034B8EF | high | METHOD_NEITHER | FILE_DEVICE_DISK Function #3643 |
| 0x0022BB07 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #3777 |
| 0x00340053 | high | METHOD_NEITHER | FILE_DEVICE_DISK Function #20 |
| 0x00340033 | high | METHOD_NEITHER | FILE_DEVICE_DISK Function #12 |
| 0x0080841B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #262 |
| 0x00222A2F | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #2699 |
| 0x00220AFF | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #703 |
| 0x00800E2B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #906 |
| 0x00222A0B | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #2690 |
| 0x0080002B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #10 |
| 0x00224A93 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #676 |
| 0x00220A43 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #656 |
| 0x0022041B | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #262 |
| 0xC350FB6F | high | METHOD_NEITHER | CUSTOM_MSI Function #3803 |
| 0x0080005F | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #23 |
| 0x00800067 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #25 |
| 0x0080210B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #2114 |
| 0x00802153 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #2132 |
| 0x00800047 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #17 |
| 0x008000C3 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #48 |
Showing 24 of 40 extracted control codes.
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 | 0xB8965 | 0xB8A00 | 5.69 | CODE, EXEC, READ |
| .rdata | 0x5AE0 | 0x5C00 | 5.63 | IDATA, READ |
| .data | 0x93D834 | 0x93D400 | 7.12 | IDATA, READ, WRITE |
| .pdata | 0x25BC | 0x2600 | 5.68 | IDATA, READ |
| PAGE | 0x0A6C | 0x0C00 | 5.02 | CODE, EXEC, READ |
| INIT | 0x1474 | 0x1600 | 5.64 | CODE, EXEC, READ, DISCARD |
| .rsrc | 0x4F78 | 0x5000 | 3.85 | IDATA, READ, DISCARD |
| .reloc | 0x0610 | 0x0800 | 4.52 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Enforced |
| Mitigation score | 100 / 100 |
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 |
| T1652 | Device Driver Discovery | Discovery |
| Signer | Sectigo Public Code Signing Root R46 |
|---|---|
| Signer organisation | Sectigo Limited |
| Issuer | AAA Certificate Services |
| Serial | 48FC93B46055948D36A7C98A89D69416 |
| Valid from | 2021-05-25 00:00 UTC |
| Valid until | 2028-12-31 23:59 UTC |
| Signature validity | Verified |
Engine angr, status completed, 100 paths explored at a maximum depth of 100. Vulnerability classes reached: 0. Exploitable paths: 0.
Based on DriverShield static and dynamic analysis, ibtusb.sys shows some suspicious signals and warrants manual review. Its composite risk score is 33/100 (verdict: suspicious). Always validate findings independently before acting.
ibtusb.sys has a DriverShield composite risk score of 33/100, placing it in the suspicious verdict band. SHA256: 41b01cb0b33cc06a3ca1e9c9a40b4e1893a92644eb3c6eb049c549ec0ac2bb58.
ibtusb.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by Sectigo Public Code Signing Root R46.
Related: Other drivers signed by Sectigo Public Code Signing Root R46 · What an IOCTL dispatch code is · BYOVD research index · full driver database · CVE library · code signing atlas