mshidumdf.sys - Clean (6/100) - DriverShield Analysis

Analysis of mshidumdf.sys: clean verdict, risk score 6/100. 0 YARA matches. SHA256 1fdb7e28ccaf7576. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

mshidumdf.sys - Analysis Report

DriverShield analyzed the Windows kernel driver mshidumdf.sys and assigned a verdict of Clean with a composite risk score of 6/100, indicating no notable risk signals (0-29 band).

Verdict	Clean (6/100)
YARA matches	0
File size	12288 bytes
Analyzed	2026-03-22
SHA256	1fdb7e28ccaf757603c4b754e1ac9c470e5e60e85de067375902f108f5e34608
SHA1	9a0f66b5007a94dcc9570c27c816ba296a84ef04
MD5	9e90fe6df363d2427a5c773120e7b27d

Driver identity

Version resource data embedded in the mshidumdf.sys PE header, as extracted by the analysis engine.

File description	Pass-through Driver for HID-UMDF Interface
Product	Microsoft® Windows® Operating System
Company	Microsoft Corporation
Original filename	MSHIDUMDF.SYS
Internal name	MSHIDUMDF.SYS
File version	10.0.19041.1 (WinBuild.160101.0800)
Copyright	© Microsoft Corporation. All rights reserved.

How the 6/100 score breaks down

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	15 / 100
IOCTL dispatch surface	6 / 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 imports (9)

Kernel-mode APIs resolved from the Import Address Table of mshidumdf.sys, ranked by exploitation relevance.

API	Risk	Why it matters
KeBugCheckEx	medium	Moderate risk - system modification capability
ExAllocatePoolWithTag	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
KeInitializeEvent	low	Standard kernel API - generally benign
RtlInitUnicodeString	low	Standard kernel API - generally benign
KeSetEvent	low	Standard kernel API - generally benign
ZwQueryValueKey	low	Standard kernel API - generally benign

IOCTL dispatch codes (2)

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
0x003403BC	medium	METHOD_BUFFERED	FILE_DEVICE_DISK Function #239

PE sections

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	0x0AA9	0x0C00	5.5	CODE, EXEC, READ
.rdata	0x04A0	0x0600	3.26	IDATA, READ
.data	0x0190	0x0200	0.28	IDATA, READ, WRITE
.pdata	0x015C	0x0200	2.76	IDATA, READ
.idata	0x03C8	0x0400	4.07	IDATA, READ
PAGE	0x02F7	0x0400	4.81	CODE, EXEC, READ
INIT	0x0196	0x0200	4.86	CODE, EXEC, READ, DISCARD
GFIDS	0x0040	0x0200	0.58	IDATA, READ, DISCARD
.rsrc	0x0678	0x0800	2.83	IDATA, READ, DISCARD
.reloc	0x00F4	0x0200	2.27	IDATA, READ, DISCARD

Exploit mitigations

Control Flow Guard	Enabled
ASLR	Enabled
DEP	Enabled
Integrity check	Not enforced
Mitigation score	80 / 100

CFG Enabled - Control Flow Guard is active - indirect calls are validated against a bitmap of valid targets at runtime.
ASLR Enabled - Address Space Layout Randomization is active - base address is randomized on each load.
DEP/NX Enabled - Data Execution Prevention is active - non-executable pages cannot be executed.
Unsigned - The driver is not digitally signed. It requires test signing mode or a bootloader exploit to load on 64-bit Windows.

MITRE ATT&CK techniques (5)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1211	Exploitation for Defense Evasion	Defense Evasion
T1543.003	Windows Service	Persistence
T1553.002	Subvert Trust Controls: Code Signing	Defense Evasion
T1553.006	Code Signing Policy Modification	Defense Evasion
T1652	Device Driver Discovery	Discovery

Symbolic execution

Engine angr, status no_findings, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.

Frequently asked questions about mshidumdf.sys

Is mshidumdf.sys safe?

Based on DriverShield static and dynamic analysis, mshidumdf.sys is assessed as clean, with no notable risk signals. Its composite risk score is 6/100 (verdict: clean). Always validate findings independently before acting.

What is the risk score of mshidumdf.sys?

mshidumdf.sys has a DriverShield composite risk score of 6/100, placing it in the clean verdict band. SHA256: 1fdb7e28ccaf757603c4b754e1ac9c470e5e60e85de067375902f108f5e34608.

What is mshidumdf.sys?

mshidumdf.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators.