WppRecorder.sys - Clean (20/100) - DriverShield Analysis

Analysis of WppRecorder.sys: clean verdict, risk score 20/100. 0 YARA matches. SHA256 16f155138dcd559f. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

WppRecorder.sys - Analysis Report

DriverShield analyzed the Windows kernel driver WppRecorder.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
File size	43832 bytes
Code-signing signer	Microsoft Windows
Analyzed	2026-03-22
SHA256	16f155138dcd559fc1dd5b4f0990969620bba5e2d114730bfa0b36060d4a47a9
SHA1	493b0ea0fea38b7a8fae74567965110367890abb
MD5	dc0a2ebc38d5b7f396f346b2c3b01699

Driver identity

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

File description	WPP Trace Recorder
Product	Microsoft® Windows® Operating System
Company	Microsoft Corporation
Original filename	WppRecorder.sys
Internal name	WppRecorder.sys
File version	10.0.19041.1 (WinBuild.160101.0800)
Copyright	© Microsoft Corporation. All rights reserved.

How the 20/100 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	63 / 100
IOCTL dispatch surface	33 / 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 imports (11)

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

API	Risk	Why it matters
MmGetSystemRoutineAddress	high	Potentially dangerous - could be used for privilege escalation or security bypass
ZwQuerySystemInformation	medium	Moderate risk - system modification capability
ZwSetValueKey	medium	Moderate risk - system modification capability
ZwOpenKey	low	Standard kernel API - generally benign
KeWaitForSingleObject	low	Standard kernel API - generally benign
RtlInitUnicodeString	low	Standard kernel API - generally benign
KeSetEvent	low	Standard kernel API - generally benign
ExAllocatePoolWithTag	low	Standard kernel API - generally benign
ZwClose	low	Standard kernel API - generally benign
KeInitializeEvent	low	Standard kernel API - generally benign
DbgPrint	low	Standard kernel API - generally benign

IOCTL dispatch codes (11)

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
0x008085C7	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #369
0x002200F0	medium	METHOD_BUFFERED	FILE_DEVICE_UNKNOWN Function #60
0x00808389	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #226
0x0022B70D	medium	METHOD_IN_DIRECT	FILE_DEVICE_UNKNOWN Function #3523
0x0080249C	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2343
0x00340032	medium	METHOD_OUT_DIRECT	FILE_DEVICE_DISK Function #12
0x0080009E	medium	METHOD_OUT_DIRECT	FILE_DEVICE_CUSTOM Function #39
0x00223412	medium	METHOD_OUT_DIRECT	FILE_DEVICE_UNKNOWN Function #3332
0x0034011A	medium	METHOD_OUT_DIRECT	FILE_DEVICE_DISK Function #70
0x00802484	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2337
0x00340394	medium	METHOD_BUFFERED	FILE_DEVICE_DISK Function #229

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	0x3F69	0x4000	6.03	CODE, EXEC, READ
.rdata	0x17C0	0x1800	4.66	IDATA, READ
.data	0x01C0	0x0200	0.41	IDATA, READ, WRITE
.pdata	0x06E4	0x0800	3.92	IDATA, READ
.idata	0x0598	0x0600	4.27	IDATA, READ
NONPAGE	0x00B0	0x0200	0.22	IDATA, READ, WRITE
PAGE	0x0950	0x0A00	5.84	CODE, EXEC, READ
.edata	0x0286	0x0400	3.67	IDATA, READ
INIT	0x0072	0x0200	1.68	CODE, EXEC, READ, DISCARD
GFIDS	0x0080	0x0200	1.11	IDATA, READ, DISCARD
.rsrc	0x0408	0x0600	2.41	IDATA, READ, DISCARD
.reloc	0x027C	0x0400	3.28	IDATA, READ, DISCARD

Exploit mitigations

Control Flow Guard	Enabled
ASLR	Enabled
DEP	Enabled
Integrity check	Not enforced
Mitigation score	85 / 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.
Expired Certificate - The driver is signed but the certificate has expired. Windows may still load it depending on revocation policy.

MITRE ATT&CK techniques (7)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1071	Application Layer Protocol	Command and Control
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
T1652	Device Driver Discovery	Discovery

Code-signing chain

Signer	Microsoft Windows
Signer organisation	Microsoft Corporation
Issuer	Microsoft Windows Production PCA 2011
Serial	330000023241FB59996DCC4DFF000000000232
Valid from	2019-05-02 21:24 UTC
Valid until	2020-05-02 21:24 UTC (expired)
Signature validity	Not verified

Certificate revision: 0x0200
Certificate type: PKCS#7
Chain: Microsoft Windows Production PCA 2011

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 WppRecorder.sys

Is WppRecorder.sys safe?

Based on DriverShield static and dynamic analysis, WppRecorder.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.

What is the risk score of WppRecorder.sys?

WppRecorder.sys has a DriverShield composite risk score of 20/100, placing it in the clean verdict band. SHA256: 16f155138dcd559fc1dd5b4f0990969620bba5e2d114730bfa0b36060d4a47a9.

What is WppRecorder.sys?

WppRecorder.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators. It is code-signed by Microsoft Windows.

Related: Other drivers signed by Microsoft Windows · What an IOCTL dispatch code is · BYOVD research index · full driver database · CVE library · code signing atlas