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BrnFileLock.sys

AGSec

Blue Ridge Networks

It runs as a Windows 64-bit kernel mode device driver named “Blue Ridge Networks FileLock mini-filter driver”. This is installed with multiple programs including Blue Ridge Networks AppGuard and AOL Tech Fortress.
Publisher:
Blue Ridge Networks  (signed and verified)

Product:
AGSec

Description:
BrnFileLock 64-bit Windows (Vista, 7, 8, 8.1, 10)

Version:
5.0.32.0 built by: WinDDK

MD5:
d85a363c9e5bebd524c6efff5e091885

SHA-1:
9126ef50b150eb2f7ab1b3d97cd2a004cad974cc

SHA-256:
04121ba206f7c5bfc797658c251ec1c6b197b8af3d0bc9c49dedf4ed1834ad1b

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
7/16/2025 10:58:57 AM UTC  (today)

File size:
78.8 KB (80,672 bytes)

Product version:
5.0.32.0

Copyright:
Copyright © 2008-2015 Blue Ridge Networks

Original file name:
BrnFileLock.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

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

Digital Signature
Signed by:
Blue Ridge Networks

Authority:
VeriSign, Inc.

Valid from:
4/21/2014 8:00:00 PM

Valid to:
6/21/2015 7:59:59 PM

Subject:
CN=Blue Ridge Networks, OU=Engineering, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Blue Ridge Networks, L=Chantilly, S=Virginia, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
209BB76E609D9BBD6F3190DA23E79C9F

File PE Metadata
Compilation timestamp:
2/13/2015 3:43:21 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
1536:yp2O7BKPaXz3iXYKHtuK5OqvRyHW/yvcB3nNs3ZR3Gd6wAAbGXU1+VD+VNL:HyKiXLiXYKHcKE6RhB3nNs3ZR3Gd6wAQ

Entry address:
0x13BD4

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, 82, D4, FE, FF, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 68, 00, 02, 02, 00, 00, 00, 00, 70, 3C, 02, 00, 00, 00, 00, 00, E0, 3C, 02, 00, 00, 00, 00, 00, 0C, 9F, 01, 00, 00, 00, 00, 00, F0, 93, 01, 00, 00, 00, 00, 00, D4, 91, 01, 00, 00, 00, 00, 00, C4, 96, 01, 00, 00, 00, 00, 00, D0, 96, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
6.3952

Code size:
59 KB (60,416 bytes)

Driver
Display name:
Blue Ridge Networks FileLock mini-filter driver

Service name:
BrnFileLock

Type:
Kernel device driver (KernelDriver)

Depends on:
FltMgr


The file BrnFileLock.sys has been discovered within the following programs.

AOL Tech Fortress  by Blue Ridge Networks
aol.it/AOLTechFortress
About 9% of users remove it
Blue Ridge Networks AppGuard  by Blue Ridge Networks
Publisher's description - “AppGuard provides the next generation of comprehensive antivirus protection. It stops zero-day malware - old and new, known and unknown - from executing an attack.”
www.blueridge.com/index.php/products/appguard/consumer
5% remove it
 
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