ACEDriver.sys - Clean (7/100) - DriverShield Analysis

Analysis of ACEDriver.sys: clean verdict, risk score 7/100. 0 YARA matches, 8/75 multi-engine detections. SHA256 c3e6a9cdad201f52. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

ACEDriver.sys - Analysis Report

DriverShield analyzed the Windows kernel driver ACEDriver.sys and assigned a verdict of Clean with a composite risk score of 7/100, indicating no notable risk signals (0-29 band).

Verdict	Clean (7/100)
YARA matches	0
Multi-engine detections	8 / 75
File size	163920 bytes
Code-signing signer	Microsoft Windows Hardware Compatibility Publisher
Analyzed	2026-04-01
SHA256	c3e6a9cdad201f521c14c0f5966e73cf05d2390503956933854024d2b4bd8fcb
SHA1	143004b1852925a2521f266a1f49b8392a3aa2aa
MD5	0c236cc8ed65fb959fde8b685aa2c873

How the 7/100 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	0 / 100
IOCTL dispatch surface	24 / 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

IOCTL dispatch codes (8)

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
0x003401E6	medium	METHOD_OUT_DIRECT	FILE_DEVICE_DISK Function #121
0x00348D4C	medium	METHOD_BUFFERED	FILE_DEVICE_DISK Function #851
0x00348D4E	medium	METHOD_OUT_DIRECT	FILE_DEVICE_DISK Function #851
0x008000B9	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #46
0x0080248C	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2339
0x00802484	medium	METHOD_BUFFERED	FILE_DEVICE_CUSTOM Function #2337
0x00804305	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #193
0x00348D48	medium	METHOD_BUFFERED	FILE_DEVICE_DISK Function #850

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	0x23599	0x23600	6.37	CODE, EXEC, READ
.rdata	0x01D0	0x0200	4.63	IDATA, READ
.data	0x13E8	0x1400	6.46	IDATA, READ, WRITE
.pdata	0x00E4	0x0200	2.31	IDATA, READ
.rsrc	0x00E8	0x0200	2.35	IDATA, READ
.reloc	0x04C8	0x0600	4.93	IDATA, READ, DISCARD

Exploit mitigations

Control Flow Guard	Not enabled
ASLR	Enabled
DEP	Enabled
Integrity check	Not enforced
Mitigation score	55 / 100

No CFG - Control Flow Guard is not enabled. Indirect call targets are not validated, making the driver susceptible to control flow hijacking via corrupted function pointers or vtables.
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 (2)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1543.003	Windows Service	Persistence
T1652	Device Driver Discovery	Discovery

Code-signing chain

Signer	Microsoft Windows Hardware Compatibility Publisher
Signer organisation	Microsoft Corporation
Issuer	Microsoft Windows Third Party Component CA 2012
Serial	3300000124E76F6CA813A27C35000000000124
Valid from	2025-02-20 20:08 UTC
Valid until	2026-02-18 20:08 UTC (expired)
Signature validity	Not verified

Certificate revision: 0x0200
Certificate type: PKCS#7
Chain: Microsoft Windows Third Party Component CA 2012

Symbolic execution

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

Frequently asked questions about ACEDriver.sys

Is ACEDriver.sys safe?

Based on DriverShield static and dynamic analysis, ACEDriver.sys is assessed as clean, with no notable risk signals. Its composite risk score is 7/100 (verdict: clean). Always validate findings independently before acting.

What is the risk score of ACEDriver.sys?

ACEDriver.sys has a DriverShield composite risk score of 7/100, placing it in the clean verdict band. SHA256: c3e6a9cdad201f521c14c0f5966e73cf05d2390503956933854024d2b4bd8fcb.

What is ACEDriver.sys?

ACEDriver.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 Hardware Compatibility Publisher.