Analysis of dumpsdport.sys: vulnerable verdict, risk score 72/100. 0 YARA matches. SHA256 8db35b7fb795cb5a. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver dumpsdport.sys and assigned a verdict of Vulnerable with a composite risk score of 72/100, indicating a known or likely vulnerability surface (60-79 band).
| Verdict | Vulnerable (72/100) |
| YARA matches | 0 |
| File size | 32768 bytes |
| Analyzed | 2026-03-22 |
| SHA256 | 8db35b7fb795cb5aef8543c55a9e96a7fb368dd4c118bdba909b71df96ebcc48 |
| SHA1 | 29c319b638b3addbbc2c4ceb79afcf49a7fa178f |
| MD5 | 98a2524bd46515a0ebc1df1436928ae0 |
Version resource data embedded in the dumpsdport.sys PE header, as extracted by the analysis engine.
| File description | SD Host Controller Crashdump Port Driver |
|---|---|
| Product | Microsoft® Windows® Operating System |
| Company | Microsoft Corporation |
| Original filename | dumpsdport.sys |
| Internal name | dumpsdport.sys |
| File version | 10.0.19041.3636 (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 | 30 / 100 |
| IOCTL dispatch surface | 60 / 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 dumpsdport.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmMapLockedPagesSpecifyCache | critical | Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination |
| KeBugCheckEx | medium | Moderate risk - system modification capability |
| KeWaitForSingleObject | low | Standard kernel API - generally benign |
| IofCompleteRequest | low | Standard kernel API - generally benign |
| KeSetEvent | 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 |
|---|---|---|---|
| 0x00222000 | medium (known exploit) | METHOD_BUFFERED | Driver communication init |
| 0x0080B907 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3649 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0080C481 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #288 |
| 0x003403CC | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #243 |
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 | 0x45E9 | 0x4600 | 6.18 | CODE, EXEC, READ |
| .rdata | 0x1330 | 0x1400 | 2.79 | IDATA, READ |
| .data | 0x0538 | 0x0200 | 0.28 | IDATA, READ, WRITE |
| .pdata | 0x045C | 0x0600 | 3.29 | IDATA, READ |
| .idata | 0x0486 | 0x0600 | 3.59 | IDATA, READ |
| .edata | 0x02B2 | 0x0400 | 3.76 | IDATA, READ |
| INIT | 0x0072 | 0x0200 | 1.68 | CODE, EXEC, READ, DISCARD |
| INIT | 0x0228 | 0x0400 | 1.49 | IDATA, READ, WRITE, DISCARD |
| GFIDS | 0x00B4 | 0x0200 | 1.38 | IDATA, READ, DISCARD |
| .rsrc | 0x0430 | 0x0600 | 2.56 | IDATA, READ, DISCARD |
| .reloc | 0x01EC | 0x0200 | 4.97 | 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 |
| T1543.003 | Windows Service | Persistence |
| T1553.006 | Code Signing Policy Modification | Defense Evasion |
| T1652 | Device Driver Discovery | Discovery |
Engine angr, status static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 1.
Based on DriverShield static and dynamic analysis, dumpsdport.sys is flagged as vulnerable and is a potential Bring Your Own Vulnerable Driver (BYOVD) risk. Its composite risk score is 72/100 (verdict: vulnerable). Always validate findings independently before acting.
dumpsdport.sys has a DriverShield composite risk score of 72/100, placing it in the vulnerable verdict band. SHA256: 8db35b7fb795cb5aef8543c55a9e96a7fb368dd4c118bdba909b71df96ebcc48.
dumpsdport.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