Analysis of ndiscap.sys: clean verdict, risk score 18/100. 0 YARA matches. SHA256 5f6395268cbd26a4. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver ndiscap.sys and assigned a verdict of Clean with a composite risk score of 18/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (18/100) |
| YARA matches | 0 |
| File size | 54272 bytes |
| Analyzed | 2026-03-22 |
| SHA256 | 5f6395268cbd26a4b90960479040c114b2c8a3f24c188c2d5f62d6ab43a637d1 |
| SHA1 | fd2ce550fb1ad16b27721b82a47246170e007de8 |
| MD5 | 6bec0929c7a7bf2a7c44f585ecc7daeb |
Version resource data embedded in the ndiscap.sys PE header, as extracted by the analysis engine.
| File description | Microsoft NDIS Packet Capture Filter Driver |
|---|---|
| Product | Microsoft® Windows® Operating System |
| Company | Microsoft Corporation |
| Original filename | NDISCAP.SYS |
| Internal name | NDISCAP.SYS |
| File version | 10.0.19041.1 (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 | 54 / 100 |
| IOCTL dispatch surface | 42 / 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 ndiscap.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmMapLockedPagesSpecifyCache | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| ZwClose | low | Standard kernel API - generally benign |
| DbgPrint | low | Standard kernel API - generally benign |
| ZwQueryValueKey | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
| ZwOpenKey | 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 |
|---|---|---|---|
| 0x0022BB07 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #3777 |
| 0x0034007B | high | METHOD_NEITHER | FILE_DEVICE_DISK Function #30 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0022EBE8 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #2810 |
| 0x00802840 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2576 |
| 0x00802494 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2341 |
| 0x0080248C | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2339 |
| 0x00346F3D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #3023 |
| 0x0034E305 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #2241 |
| 0x0022AB05 | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #2753 |
| 0x0034002D | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #11 |
| 0x003403B4 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #237 |
| 0x00340025 | medium | METHOD_IN_DIRECT | FILE_DEVICE_DISK Function #9 |
| 0x00340076 | medium | METHOD_OUT_DIRECT | FILE_DEVICE_DISK Function #29 |
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 | 0x67A9 | 0x6800 | 6.29 | CODE, EXEC, READ |
| .rdata | 0x0DD8 | 0x0E00 | 4.67 | IDATA, READ |
| .data | 0x02D8 | 0x0200 | 0.52 | IDATA, READ, WRITE |
| .pdata | 0x03CC | 0x0400 | 4.2 | IDATA, READ |
| .idata | 0x07D6 | 0x0800 | 4.41 | IDATA, READ |
| INIT | 0x01E2 | 0x0200 | 5.36 | CODE, EXEC, READ, DISCARD |
| GFIDS | 0x0058 | 0x0200 | 0.79 | IDATA, READ, DISCARD |
| .rsrc | 0x4348 | 0x4400 | 3.79 | IDATA, READ, DISCARD |
| .reloc | 0x03A4 | 0x0400 | 4.72 | 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 |
|---|---|---|
| T1003.001 | OS Credential Dumping: LSASS Memory | Credential Access |
| T1055.012 | Process Hollowing | Defense Evasion |
| 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 |
| T1652 | Device Driver Discovery | Discovery |
Engine angr, status no_findings, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.
Based on DriverShield static and dynamic analysis, ndiscap.sys is assessed as clean, with no notable risk signals. Its composite risk score is 18/100 (verdict: clean). Always validate findings independently before acting.
ndiscap.sys has a DriverShield composite risk score of 18/100, placing it in the clean verdict band. SHA256: 5f6395268cbd26a4b90960479040c114b2c8a3f24c188c2d5f62d6ab43a637d1.
ndiscap.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