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oz776x64.sys

O2Micro USB CCID SmartCard Reader

BayHub Technology Inc.

It runs as a Windows 64-bit kernel mode device driver named “guardian2”. This is installed with O2Micro OZ776 SCR Driver.
Publisher:
O2Micro  (signed by BayHub Technology Inc.)

Product:
O2Micro USB CCID SmartCard Reader

Version:
2.1.4.244 (+EMV1.3.7.3)

MD5:
5579eea45bfd76b876efd47ee63cdf2d

SHA-1:
76ff205596598be566982b1b1d1b9325fe66956a

SHA-256:
1ede07e68f844c8603623873cbe4b1addbb40c1e5944bed532a7a86dadb138c8

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
6/18/2025 6:24:58 AM UTC  (today)

File size:
97.5 KB (99,864 bytes)

Product version:
1.0.0.0

Copyright:
Copyright (C) O2Micro, Inc. 2015

Trademarks:
O2Micro (c) 2005

Original file name:
oz776.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\oz776x64.sys

Digital Signature
Signed by:
BayHub Technology Inc.

Authority:
DigiCert Inc

Valid from:
4/14/2015 7:00:00 PM

Valid to:
4/19/2016 7:00:00 AM

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:
10/13/2015 1:46:32 PM

OS version:
10.0

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
14.0

CTPH (ssdeep):
1536:6hho6SxcnCtylSwliAk6+cFLX7o5DewnCQUgRNvxKIp2PJKyBKzqnM/:ISiCRwliAkrc6ewnCQUyZxKIG90eM/

Entry address:
0x18000

Entry point:
48, 89, 5C, 24, 08, 57, 48, 83, EC, 20, 48, 8B, DA, 48, 8B, F9, E8, 17, 00, 00, 00, 48, 8B, D3, 48, 8B, CF, 48, 8B, 5C, 24, 30, 48, 83, C4, 20, 5F, E9, 9E, 7B, FF, FF, CC, CC, 48, 8B, 05, 95, D2, FF, FF, 48, 85, C0, 74, 1A, 48, B9, 32, A2, DF, 2D, 99, 2B, 00, 00, 48, 3B, C1, 74, 0B, 48, F7, D0, 48, 89, 05, 6F, D2, FF, FF, C3, B9, 06, 00, 00, 00, CD, 29, CC, CC, CC, 60, 81, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 20, 89, 01, 00, A0, 30, 01, 00, C0, 80, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 4A, 89, 01, 00...
 
[+]

Entropy:
6.4736

Code size:
66 KB (67,584 bytes)

Driver
Display name:
guardian2

Type:
Kernel device driver (KernelDriver)


The file oz776x64.sys has been discovered within the following program.

O2Micro OZ776 SCR Driver  by O2Micro International LTD.
This is the software driver package for the installed O2Micro OZ776 scanner. The driver package is required in order for the O2Micro OZ776 scanner to function properly and is the software that allows your computer to communicate with this hardware device.
www.O2Micro.com
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