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browsermon.sys

PrivDog

Adtrustmedia, LLC

The file browsermon.sys, “BrowserMon Driver” by Adtrustmedia has been detected as a potentially unwanted program by 7 anti-malware scanners. It runs as a Windows file system device driver named “browserMon”.
Publisher:
AdTrustMedia  (signed by Adtrustmedia, LLC)

Product:
PrivDog

Description:
BrowserMon Driver

Version:
4.0.7.0

MD5:
ac968a0ac41d29f7d18de14161b9fc12

SHA-1:
949a9b6f1b3852a6d35c1b3087f34e5d990c49e6

SHA-256:
e1f09de5c1e9b0038d07336fb4d2c3df1caed5c53079e176491097c606d47e12

Scanner detections:
7 / 68

Status:
Potentially unwanted

Explanation:
Displays advertising 'Trusted Advertisements' in the user's web browser in pages that normally would not show ads. Ads from AdTrustMedia are indicated by "AT-M Ad" displayed on the bottom right of the advertisement.

Analysis date:
5/13/2025 8:40:12 AM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.HfsAdware
1.3.0.6379

Fortinet FortiGate
W32/PrivDog.FCOW!tr.bdr
7/25/2015

McAfee
BackDoor-FCOW!AC968A0AC41D
5600.6694

Reason Heuristics
PUP.Adtrustmedia (M)
15.7.25.11

Sophos
PrivDog
4.98

Trend Micro House Call
Suspicious_GEN.F47V0323
7.2.206

VIPRE Antivirus
AdTrustMedia
39308

File size:
17.7 KB (18,112 bytes)

Product version:
4.0.7.0

Copyright:
Copyright © Adtrust-Media, LLC. 2012-2015. All rights reserved

Original file name:
PrivDog

File type:
Driver (Win32 SYS)

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

Digital Signature
Signed by:
Adtrustmedia, LLC

Authority:
COMODO CA Limited

Valid from:
3/19/2015 2:00:00 AM

Valid to:
1/1/2016 1:59:59 AM

Subject:
CN="Adtrustmedia, LLC", O="Adtrustmedia, LLC", STREET="41 Watchung Plaza \#330", L=Montclair, S=New Jersey, PostalCode=07042, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
55A8A637287BFE69A0D09B9FA473C126

File PE Metadata
Compilation timestamp:
3/20/2015 4:32:43 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
384:WGj2x2AFwsME0Ct5QrnACxMMC18xS7Lia5r:1TAwE0XntxhQ3r

Entry address:
0x1D24

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 52, FF, FF, FF, EC, 1D, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 10, 20, 00, 00, E8, 14, 00, 00, E0, 1D, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 4A, 20, 00, 00, DC, 14, 00, 00, 84, 1D, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 6A, 22, 00, 00, 80, 14, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 52, 20, 00, 00, 54, 22, 00, 00, 40, 22, 00, 00, 28, 22, 00, 00, 0A, 22, 00, 00, F0, 21, 00, 00, D6, 21, 00, 00, BE, 21, 00, 00...
 
[+]

Code size:
6.3 KB (6,400 bytes)

Driver
Display name:
browserMon

Description:
FsFilter Mini-Filter Driver

Type:
File system 'filter' driver (FileSystemDriver)

Group:
FSFilter Activity Monitor

Depends on:
FltMgr


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