55555.sys - Clean (11/100) - DriverShield Analysis

Analysis of 55555.sys: clean verdict, risk score 11/100. 0 YARA matches, 1/75 multi-engine detections. SHA256 e1a9f811f742bbdb. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.

55555.sys - Analysis Report

DriverShield analyzed the Windows kernel driver 55555.sys and assigned a verdict of Clean with a composite risk score of 11/100, indicating no notable risk signals (0-29 band).

Verdict	Clean (11/100)
YARA matches	0
Multi-engine detections	1 / 75
File size	541376 bytes
Code-signing signer	Microsoft Windows Hardware Compatibility Publisher
Analyzed	2026-09-03
SHA256	e1a9f811f742bbdb6ea63fc30ec6b9f01592c73c677f849fb398447156952bd4
SHA1	2595fc700f06f41555a3e1582243ac26ee33dff4
MD5	8bf0da3b94b3ef091bc23c83c5030f33

How the 11/100 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	54 / 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 (18)

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
0x008045C7	high	METHOD_NEITHER	FILE_DEVICE_CUSTOM Function #369
0x002200F0	medium	METHOD_BUFFERED	FILE_DEVICE_UNKNOWN Function #60
0x00220020	medium	METHOD_BUFFERED	FILE_DEVICE_UNKNOWN Function #8
0x0080B511	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #3396
0x008000B9	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #46
0x00808589	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #354
0x0080BD89	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #3938
0x0080AD89	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #2914
0x00808D89	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #866
0x0034E98D	medium	METHOD_IN_DIRECT	FILE_DEVICE_DISK Function #2659
0x00809D89	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #1890
0x00809589	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #1378
0x0080B589	medium	METHOD_IN_DIRECT	FILE_DEVICE_CUSTOM Function #3426
0x0022258D	medium	METHOD_IN_DIRECT	FILE_DEVICE_UNKNOWN Function #2403
0x0034AB15	medium	METHOD_IN_DIRECT	FILE_DEVICE_DISK Function #2757
0x00342F25	medium	METHOD_IN_DIRECT	FILE_DEVICE_DISK Function #3017
0x0022F5F9	medium	METHOD_IN_DIRECT	FILE_DEVICE_UNKNOWN Function #3454
0x002273E9	medium	METHOD_IN_DIRECT	FILE_DEVICE_UNKNOWN Function #3322

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	0x7E326	0x7E400	5.63	CODE, EXEC, READ
.rdata	0x12E0	0x1400	4.5	IDATA, READ
.data	0x7000	0x0A00	6.92	IDATA, READ, WRITE
.pdata	0x0A5C	0x0C00	4.74	IDATA, READ
.CRT	0x0008	0x0200	0.1	IDATA, READ
INIT	0x00A9	0x0200	1.69	IDATA, READ, WRITE, DISCARD
.reloc	0x024C	0x0400	3.72	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 (3)

Techniques this driver could enable if loaded by an adversary.

ID	Technique	Tactic
T1543.003	Windows Service	Persistence
T1569.002	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 static_approximation, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.

Frequently asked questions about 55555.sys

Is 55555.sys safe?

Based on DriverShield static and dynamic analysis, 55555.sys is assessed as clean, with no notable risk signals. Its composite risk score is 11/100 (verdict: clean). Always validate findings independently before acting.

What is the risk score of 55555.sys?

55555.sys has a DriverShield composite risk score of 11/100, placing it in the clean verdict band. SHA256: e1a9f811f742bbdb6ea63fc30ec6b9f01592c73c677f849fb398447156952bd4.

What is 55555.sys?

55555.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.