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o2cf4x64.sys

O2Micro CF4 Reader Driver

BayHub Technology Inc.

It runs as a Windows 64-bit kernel mode device driver named “O2CF4x64DR”.
Publisher:
O2Micro   (signed by BayHub Technology Inc.)

Product:
O2Micro CF4 Reader Driver

Description:
O2Micro CF4 Reader Driver (AMD64)

Version:
2, 2, 2, 7029

MD5:
ba38cd596b9ce748faed9052c384a85e

SHA-1:
943096ad7a5d6255163a917ae981df9cebd50a7e

SHA-256:
f9b46baa31a558a20b86e87d99a07ad4d8a84e4f2c992fbae0dbbc91570cc890

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
6/18/2025 9:47:23 AM UTC  (today)

File size:
51.4 KB (52,632 bytes)

Product version:
2, 0, 0, 0

Copyright:
Copyright (C)2009~2015, O2Micro International.

Original file name:
O2CF4.sys

File type:
Driver (Win64 SYS)

Common path:
C:\Windows\System32\drivers\o2cf4x64.sys

Digital Signature
Signed by:
BayHub Technology Inc.

Authority:
DigiCert Inc

Valid from:
4/15/2015 9:00:00 AM

Valid to:
4/19/2016 9:00:00 PM

Subject:
CN=BayHub Technology Inc., O=BayHub Technology Inc., L=Santa Calra, S=California, C=US, PostalCode=95054, STREET=3118 Patrick Henry Drive, SERIALNUMBER=C3540670, OID.1.3.6.1.4.1.311.60.2.1.2=California, OID.1.3.6.1.4.1.311.60.2.1.3=US, OID.2.5.4.15=Private Organization

Issuer:
CN=DigiCert EV Code Signing CA (SHA2), OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0B42B4D63F98A9506806275FF4AF482B

File PE Metadata
Compilation timestamp:
1/23/2015 6:14:46 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:adV4DhWC7rC5xN/JKY7ZD2IuKYjHSp8xUKxE+v2CGIa3I6cSDPKgW65OqRAj:xhhMJz2USE8XxGI5SzZwqqj

Entry address:
0x7DE4

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, AA, 91, FF, FF, CC, CC, 88, 7E, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, 80, 00, 00, 48, 72, 00, 00, 40, 7E, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, C8, 81, 00, 00, 00, 72, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 8A, 81, 00, 00, 00, 00, 00, 00, 70, 81, 00, 00, 00, 00, 00, 00, 5A, 81, 00, 00, 00, 00, 00, 00, 42, 81, 00, 00, 00, 00, 00, 00, 2A, 81, 00, 00...
 
[+]

Entropy:
6.7371

Code size:
28.9 KB (29,568 bytes)

Driver
Display name:
O2CF4x64DR

Type:
Kernel device driver (KernelDriver)

Group:
Boot Bus Extender


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