Analysis of WDTKernel.sys: clean verdict, risk score 23/100. 1 YARA match, 0/73 multi-engine detections. SHA256 360e882c152e883e. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver WDTKernel.sys and assigned a verdict of Clean with a composite risk score of 23/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (23/100) |
| YARA matches | 1 |
| Multi-engine detections | 0 / 73 |
| File size | 30752 bytes |
| Code-signing signer | Symantec Time Stamping Services CA - G2 |
| Analyzed | 2026-04-24 |
| SHA256 | 360e882c152e883e0b67cd9b77dac02ed9d682d1a039a1e1d572684b2abbb45d |
| SHA1 | 815e43309e3809b5170cade6eb2453e3b972c7a9 |
| MD5 | 52353fa3af1d4e3127441e126f289672 |
Version resource data embedded in the WDTKernel.sys PE header, as extracted by the analysis engine.
| File description | WDT System Driver |
|---|---|
| Product | Dell (R) WDT Kernel Driver |
| Company | Dell (R) Corporation |
| Original filename | WdtKernel.sys |
| Internal name | WdtKernel.sys |
| File version | 6.1.7600.16385 built by: WinDDK |
| Copyright | Copyright (c) Dell 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 | 30 / 100 |
| Dangerous kernel imports | 60 / 100 |
| IOCTL dispatch surface | 30 / 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 WDTKernel.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmMapIoSpace | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| MmUnmapIoSpace | medium | Moderate risk - system modification capability |
| KeBugCheckEx | medium | Moderate risk - system modification capability |
| 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 |
|---|---|---|---|
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0034BB0D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #3779 |
| 0x00345F0D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #1987 |
| 0x00341B2D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #1739 |
| 0x0034270D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #2499 |
| 0x0080EC81 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2848 |
| 0x00802494 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2341 |
| 0x0080248C | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2339 |
| 0x00340380 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #224 |
| 0x00804F75 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #989 |
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 | 0x122A | 0x1400 | 5.68 | CODE, EXEC, READ |
| .rdata | 0x01CC | 0x0200 | 4.3 | IDATA, READ |
| .data | 0x10D0 | 0x0200 | 0.72 | IDATA, READ, WRITE |
| .pdata | 0x01A4 | 0x0200 | 3.19 | IDATA, READ |
| PAGE | 0x0518 | 0x0600 | 5.1 | CODE, EXEC, READ |
| PAGED_CO | 0x089F | 0x0A00 | 5.4 | CODE, EXEC, READ |
| INIT | 0x0280 | 0x0400 | 3.84 | CODE, EXEC, READ, WRITE, DISCARD |
| .rsrc | 0x03E0 | 0x0400 | 3.34 | IDATA, READ, DISCARD |
| .reloc | 0x003C | 0x0200 | 0.22 | 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 |
|---|---|---|
| SUSP_PhysMem | high | Physical memory mapping |
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 |
| T1055.012 | Process Hollowing | Defense Evasion |
| T1068 | Exploitation for Privilege Escalation | Privilege Escalation |
| T1071 | Application Layer Protocol | Command and Control |
| T1543.003 | Windows Service | Persistence |
| T1569.002 | Service Execution | Execution |
| T1652 | Device Driver Discovery | Discovery |
| Signer | Symantec Time Stamping Services CA - G2 |
|---|---|
| Signer organisation | Symantec Corporation |
| Issuer | Thawte Timestamping CA |
| Serial | 7E93EBFB7CC64E59EA4B9A77D406FC3B |
| Valid from | 2012-12-21 00:00 UTC |
| Valid until | 2020-12-30 23:59 UTC (expired) |
| Signature validity | Not verified |
Engine angr, status completed, 32 paths explored at a maximum depth of 32. Vulnerability classes reached: 0. Exploitable paths: 0.
Based on DriverShield static and dynamic analysis, WDTKernel.sys is assessed as clean, with no notable risk signals. Its composite risk score is 23/100 (verdict: clean). Always validate findings independently before acting.
WDTKernel.sys has a DriverShield composite risk score of 23/100, placing it in the clean verdict band. SHA256: 360e882c152e883e0b67cd9b77dac02ed9d682d1a039a1e1d572684b2abbb45d.
WDTKernel.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by Symantec Time Stamping Services CA - G2.
Related: Other drivers signed by Symantec Time Stamping Services CA - G2 · What an IOCTL dispatch code is · How YARA matching feeds the score · BYOVD research index · full driver database · CVE library · code signing atlas