Analysis of driver.sys: clean verdict, risk score 20/100. 0 YARA matches, 1/75 multi-engine detections. SHA256 8eee492bdf8231df. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver driver.sys and assigned a verdict of Clean with a composite risk score of 20/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (20/100) |
| YARA matches | 0 |
| Multi-engine detections | 1 / 75 |
| File size | 20320 bytes |
| Code-signing signer | WDKTestCert cengi,133726889218215514 |
| Analyzed | 2026-07-18 |
| SHA256 | 8eee492bdf8231dfd45fc17d01b56d491a5fbf3e5fdc222867ad98c80c355a96 |
| SHA1 | d745efe78fbad5c53065fc3f41164568bfe425a7 |
| MD5 | 02268c1e56900951e77ddf5dcfc95123 |
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 | 84 / 100 |
| IOCTL dispatch surface | 39 / 100 |
| Known-vulnerable corpus | 0 / 100 |
| Code-signing state | 0 / 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 driver.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmCopyVirtualMemory | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| PsLookupProcessByProcessId | high | Potentially dangerous - could be used for privilege escalation or security bypass |
| KeDelayExecutionThread | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| DbgPrint | 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 |
| 0x00341B15 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #1733 |
| 0x0022B900 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #3648 |
| 0x0034F315 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #3269 |
| 0x0022B960 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #3672 |
| 0x0034F30D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #3267 |
| 0x00349B05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #1729 |
| 0x00348705 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #449 |
| 0x00346B05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #2753 |
| 0x00345F05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #1985 |
| 0x00344305 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #193 |
| 0x00341F05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #1985 |
| 0x00340F05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #961 |
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 | 0x30E8 | 0x3200 | 6.27 | CODE, EXEC, READ |
| .rdata | 0x0780 | 0x0800 | 3.79 | IDATA, READ |
| .data | 0x05D8 | 0x0200 | 0.53 | IDATA, READ, WRITE |
| .pdata | 0x01D4 | 0x0200 | 3.7 | IDATA, READ |
| INIT | 0x03AE | 0x0400 | 4.53 | CODE, EXEC, READ, DISCARD |
| .reloc | 0x0030 | 0x0200 | 0.59 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Not enforced |
| Mitigation score | 100 / 100 |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1003 | OS Credential Dumping | Credential Access |
| T1003.001 | OS Credential Dumping: LSASS Memory | Credential Access |
| T1006 | Direct Volume Access | Defense Evasion |
| T1055.001 | Process Injection: DLL Injection | Defense Evasion |
| T1055.012 | Process Hollowing | Defense Evasion |
| T1068 | Exploitation for Privilege Escalation | Privilege Escalation |
| T1489 | Service Stop | Impact |
| T1543.003 | Windows Service | Persistence |
| T1562.001 | Impair Defenses: Disable/Modify Tools | Defense Evasion |
| T1652 | Device Driver Discovery | Discovery |
| Signer | WDKTestCert cengi,133726889218215514 |
|---|---|
| Issuer | WDKTestCert cengi,133726889218215514 |
| Serial | 1D8AF7444D06838F4D79082AD7E548E8 |
| Valid from | 2024-10-06 11:48 UTC |
| Valid until | 2034-10-06 00:00 UTC |
| Signature validity | 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, driver.sys is assessed as clean, with no notable risk signals. Its composite risk score is 20/100 (verdict: clean). Always validate findings independently before acting.
driver.sys has a DriverShield composite risk score of 20/100, placing it in the clean verdict band. SHA256: 8eee492bdf8231dfd45fc17d01b56d491a5fbf3e5fdc222867ad98c80c355a96.
driver.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by WDKTestCert cengi,133726889218215514.
Related: Other drivers signed by WDKTestCert cengi,133726889218215514 · What an IOCTL dispatch code is · BYOVD research index · full driver database · CVE library · code signing atlas