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{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:
c040450711aaad52ba11a96fad594ab2

SHA-1:
a32180ce3c339916dfe4dc8359a474ac958bdeb7

SHA-256:
b012e6e96350b87f5db5ddac6ed7e2fb1d70d288ef911d2152d7ca7100a7d5f9

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
4/25/2024 8:07:56 PM 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
4.0.3.16215

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

Dr.Web
Trojan.BPlug.123
9.0.1.046

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
14.0.0.658

McAfee
Artemis!DA795666B2C2
5600.6489

NANO AntiVirus
Riskware.Win32.Yotoon.ddghtt
0.28.2.61519

Panda Antivirus
Trj/Chgt.G
16.02.15.11

Qihoo 360 Security
Win32/Virus.Adware.c12
1.0.0.1015

Reason Heuristics
PUP.Yontoo.Megabrowse (M)
16.2.15.11

Sophos
Browse Fox
4.98

Trend Micro House Call
Suspicious_GEN.F47V0620
7.2.46

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:
51.3 KB (52,512 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:
Megabrowse

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:
1/31/2014 3:45:28 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:AIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnS+H+uh:3sHRKHLJqQpkYwTsiTtXxtzFh

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Code size:
37 KB (37,888 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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