PoisonX.sys - Vulnerable (60/100) - DriverShield Analysis

Analysis of PoisonX.sys: vulnerable verdict, risk score 60/100. 0 YARA matches, 1/76 multi-engine detections. SHA256 a5035cbd6c316162. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

PoisonX.sys - Analysis Report

DriverShield analyzed the Windows kernel driver PoisonX.sys and assigned a verdict of Vulnerable with a composite risk score of 60/100, indicating a known or likely vulnerability surface (60-79 band).

Verdict	Vulnerable (60/100)
YARA matches	0
Multi-engine detections	1 / 76
File size	19672 bytes
Code-signing signer	Microsoft Windows Hardware Compatibility Publisher
Analyzed	2026-04-06
SHA256	a5035cbd6c31616288aa66d98e5a25441ee38651fb5f330676319f921bb816a4
SHA1	4cad3e674682d3d70cc875977f23d71f41ceb55e
MD5	2cc835399634d1f8f50e465201bfd877

How the 60/100 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	100 / 100
IOCTL dispatch surface	6 / 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 PoisonX.sys, ranked by exploitation relevance.

API	Risk	Why it matters
ZwTerminateProcess	critical	Highly dangerous - potential for arbitrary code execution, memory corruption, or process termination
ZwOpenProcess	high	Potentially dangerous - could be used for privilege escalation or security bypass
RtlInitUnicodeString	low	Standard kernel API - generally benign
IoDeleteSymbolicLink	low	Standard kernel API - generally benign
KeDelayExecutionThread	low	Standard kernel API - generally benign
IoDeleteDevice	low	Standard kernel API - generally benign
ExAllocatePool	low	Standard kernel API - generally benign
IofCompleteRequest	low	Standard kernel API - generally benign
IoCreateSymbolicLink	low	Standard kernel API - generally benign
IoCreateDevice	low	Standard kernel API - generally benign
ZwClose	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
0x0022E008	medium	METHOD_BUFFERED	FILE_DEVICE_UNKNOWN Function #2050

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	0x0E33	0x1000	5.78	CODE, EXEC, READ
.rdata	0x0534	0x0600	3.59	IDATA, READ
.data	0x1038	0x0200	0.12	IDATA, READ, WRITE
.pdata	0x00C0	0x0200	1.63	IDATA, READ
INIT	0x0260	0x0400	3.13	CODE, EXEC, READ, DISCARD
.reloc	0x0014	0x0200	0.26	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 (8)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1055.001	Process Injection: DLL Injection	Defense Evasion
T1211	Exploitation for Defense Evasion	Defense Evasion
T1489	Service Stop	Impact
T1543.003	Windows Service	Persistence
T1553.002	Subvert Trust Controls: Code Signing	Defense Evasion
T1562.001	Disable/Modify Tools	Defense Evasion
T1569.002	System Services: Service Execution	Execution
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 2014
Serial	330000006E1229856F0ADE6CFC00000000006E
Valid from	2024-10-10 19:04 UTC
Valid until	2025-10-08 19:04 UTC (expired)
Signature validity	Not verified

Certificate revision: 0x0200
Certificate type: PKCS#7
Chain: Microsoft Windows Third Party Component CA 2014

Symbolic execution

Engine angr, status completed, 100 paths explored at a maximum depth of 100. Vulnerability classes reached: 0. Exploitable paths: 0.

Frequently asked questions about PoisonX.sys

Is PoisonX.sys safe?

Based on DriverShield static and dynamic analysis, PoisonX.sys is flagged as vulnerable and is a potential Bring Your Own Vulnerable Driver (BYOVD) risk. Its composite risk score is 60/100 (verdict: vulnerable). Always validate findings independently before acting.

What is the risk score of PoisonX.sys?

PoisonX.sys has a DriverShield composite risk score of 60/100, placing it in the vulnerable verdict band. SHA256: a5035cbd6c31616288aa66d98e5a25441ee38651fb5f330676319f921bb816a4.

What is PoisonX.sys?

PoisonX.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.