{29b136c9-938d-4d3d-8df8-d649d9b74d02}w.sys

Megabrowse

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {29b136c9-938d-4d3d-8df8-d649d9b74d02}w.sys by Megabrowse has been detected as adware by 20 anti-malware scanners. It runs as a Windows kernel mode device driver named “{29b136c9-938d-4d3d-8df8-d649d9b74d02}w”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
StdLib  (signed by Megabrowse)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
f442b413fa03f18fb11d7397aac5a6bd

SHA-1:
fef9793eb35a7be437bdcc910c300fb288f7d938

SHA-256:
eeac0ab9d6d8b6dc35ed3245eee36dcd0514deaaf81ffd3b43795f79e5857568

Scanner detections:
20 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/25/2024 6:26:22 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.09.25

Avira AntiVirus
Adware/BrowseFox.A.168
7.11.174.78

AVG
Brewurst
2017.0.2833

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16214

Comodo Security
Application.Win32.RiskWare.NetFilter.D
19611

Dr.Web
Trojan.BPlug.123
9.0.1.045

F-Prot
W32/A-0937c3f0
v6.4.7.1.166

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.7.5.0

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.661

McAfee
Artemis!DA795666B2C2
5600.6489

NANO AntiVirus
Riskware.Win32.Yotoon.ddghtt
0.28.2.61519

Panda Antivirus
Trj/Chgt.G
16.02.14.05

Qihoo 360 Security
Win32/Virus.Adware.c12
1.0.0.1015

Reason Heuristics
PUP.Yontoo.Megabrowse (M)
16.2.14.17

Sophos
Browse Fox
4.98

Trend Micro House Call
Suspicious_GEN.F47V0620
7.2.45

Vba32 AntiVirus
AdWare.Win64.Yotoon
3.12.26.3

VIPRE Antivirus
Threat.4150696
31208

Zillya! Antivirus
Adware.Yotoon.Win64.7
2.0.0.1913

File size:
37.8 KB (38,688 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{29b136c9-938d-4d3d-8df8-d649d9b74d02}w.sys

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
5/7/2014 3:00:00 AM

Valid to:
5/8/2015 2:59:59 AM

Subject:
CN=Megabrowse, O=Megabrowse, STREET=10620 Treena Street Suite 230, L=San Diego, S=Ca, PostalCode=92131, C=US

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

Serial number:
0CD194221ED016F035BD7BACA4027DC3

File PE Metadata
Compilation timestamp:
9/13/2014 2:32:59 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:3f5OQ5p9MZq9Vkh5z8tZfJm/6D1GqA+5+TFpEwX/+H+lz:3f5H5pH+x8t1c/+Gd+5/4Ga

Entry address:
0x903E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 80, FF, FF, CC, CC, 74, 91, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, 94, 00, 00, C0, 70, 00, 00, B4, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, 95, 00, 00, 00, 70, 00, 00, EC, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A0, 98, 00, 00, 38, 70, 00, 00, C4, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 98, 99, 00, 00, 10, 70, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DC, 94, 00, 00, F0, 94, 00, 00, C8, 94...
 
[+]

Code size:
24.5 KB (25,088 bytes)

Driver
Display name:
{29b136c9-938d-4d3d-8df8-d649d9b74d02}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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