iOCdrv.sys - Suspicious (58/100) - DriverShield Analysis

Analysis of iOCdrv.sys: suspicious verdict, risk score 58/100. 2 YARA matches, 1/75 multi-engine detections. SHA256 b936c4ba80ccee3b. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

iOCdrv.sys - Analysis Report

DriverShield analyzed the Windows kernel driver iOCdrv.sys and assigned a verdict of Suspicious with a composite risk score of 58/100, indicating some risk signals warranting review (30-59 band).

Verdict	Suspicious (58/100)
YARA matches	2
Multi-engine detections	1 / 75
File size	43680 bytes
Code-signing signer	Intel Corporation
Analyzed	2026-04-01
SHA256	b936c4ba80ccee3b0b3b67fc88c8caa103fcfc47888e976f6d5b6f113d22f41f
SHA1	8a76cad761b978934d45584d4af8eb5b67f6fed1
MD5	4b1d81db39537320eb823f5b4f2489e2

Driver identity

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

File description	Intel(R) Overclocking Device Driver
Product	Intel(R) Extreme Tuning Utility
Company	Intel Corporation
Original filename	iOCdrv.sys
Internal name	iOCdrv.sys
File version	6.5.1.31
Copyright	Copyright(C) 2007 - 2020, Intel Corporation. All Rights Reserved.

How the 58/100 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	80 / 100
Dangerous kernel imports	100 / 100
IOCTL dispatch surface	15 / 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 (17)

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

API	Risk	Why it matters
MmMapIoSpace	critical	Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination
HalSetBusDataByOffset	high	Potentially dangerous - could be used for privilege escalation or security bypass
HalGetBusDataByOffset	high	Potentially dangerous - could be used for privilege escalation or security bypass
KeBugCheckEx	medium	Moderate risk - system modification capability
MmUnmapIoSpace	medium	Moderate risk - system modification capability
KeInitializeEvent	low	Standard kernel API - generally benign
ExAllocatePoolWithTag	low	Standard kernel API - generally benign
IoDeleteSymbolicLink	low	Standard kernel API - generally benign
SeSinglePrivilegeCheck	low	Standard kernel API - generally benign
IoCreateSymbolicLink	low	Standard kernel API - generally benign
KeWaitForSingleObject	low	Standard kernel API - generally benign
IoDeleteDevice	low	Standard kernel API - generally benign
RtlInitUnicodeString	low	Standard kernel API - generally benign
KeSetEvent	low	Standard kernel API - generally benign
ZwClose	low	Standard kernel API - generally benign
IofCompleteRequest	low	Standard kernel API - generally benign
IoCreateDevice	low	Standard kernel API - generally benign

IOCTL dispatch codes (5)

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
0x0080EC81	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #2848
0x0022BB00	medium	METHOD_BUFFERED	FILE_DEVICE_UNKNOWN Function #3776
0x0034011D	medium	METHOD_IN_DIRECT	FILE_DEVICE_DISK Function #71
0x0034037C	medium	METHOD_BUFFERED	FILE_DEVICE_DISK Function #223

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	0x1932	0x1A00	6.24	CODE, EXEC, READ
.rdata	0x0874	0x0A00	3.69	IDATA, READ
.data	0x0030	0x0200	0.36	IDATA, READ, WRITE
.pdata	0x01BC	0x0200	3.5	IDATA, READ
PAGE	0x04FA	0x0600	5.43	CODE, EXEC, READ
INIT	0x076C	0x0800	5.32	CODE, EXEC, READ, DISCARD
.rsrc	0x03E0	0x0400	3.27	IDATA, READ, DISCARD
.reloc	0x0020	0x0200	0.32	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.

YARA rule matches (2)

Rule	Severity	Detects
BYOVD_MemRW	critical	Phys memory mapping + device creation
SUSP_PhysMem	high	Physical memory mapping

MITRE ATT&CK techniques (14)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1003	OS Credential Dumping	Credential Access
T1003.001	OS Credential Dumping: LSASS Memory	Credential Access
T1006	Direct Volume Access	Defense Evasion
T1014	Rootkit	Defense Evasion
T1055.012	Process Hollowing	Defense Evasion
T1068	Exploitation for Privilege Escalation	Privilege Escalation
T1071	Application Layer Protocol	Command and Control
T1211	Exploitation for Defense Evasion	Defense Evasion
T1542.001	Pre-OS Boot: System Firmware	Persistence
T1543.003	Windows Service	Persistence
T1553.002	Subvert Trust Controls: Code Signing	Defense Evasion
T1569.002	Service Execution	Execution
T1601	Modify System Image	Defense Evasion
T1652	Device Driver Discovery	Discovery

Code-signing chain

Signer	Intel Corporation
Signer organisation	Intel Corporation
Issuer	COMODO RSA Extended Validation Code Signing CA
Serial	B15FDDBBCD5912920FFAB85C4F6064D5
Valid from	2019-08-07 00:00 UTC
Valid until	2020-08-06 23:59 UTC (expired)
Signature validity	Not verified

Certificate revision: 0x0200
Certificate type: PKCS#7
Chain: COMODO RSA Extended Validation Code Signing CA
Chain: COMODO RSA Certification Authority

Symbolic execution

Engine angr, status static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 1. Exploitable paths: 0.

Frequently asked questions about iOCdrv.sys

Is iOCdrv.sys safe?

Based on DriverShield static and dynamic analysis, iOCdrv.sys shows some suspicious signals and warrants manual review. Its composite risk score is 58/100 (verdict: suspicious). Always validate findings independently before acting.

What is the risk score of iOCdrv.sys?

iOCdrv.sys has a DriverShield composite risk score of 58/100, placing it in the suspicious verdict band. SHA256: b936c4ba80ccee3b0b3b67fc88c8caa103fcfc47888e976f6d5b6f113d22f41f.

What is iOCdrv.sys?

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