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{29b136c9-938d-4d3d-8df8-d649d9b74d02}t.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}t.sys by Megabrowse has been detected as adware by 32 anti-malware scanners. It runs as a Windows kernel mode device driver named “{29b136c9-938d-4d3d-8df8-d649d9b74d02}t”. 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:
766925292fec3e6adb06d673e3d42a73

SHA-1:
22bb0b3a7a5246bd90bc71c3d73aee920e696fbb

Scanner detections:
32 / 68

Status:
Adware

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

Analysis date:
4/25/2024 11:02:03 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CF
356

Agnitum Outpost
PUA.Yotoon
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.282
7.11.174.236

avast!
Win32:BrowseFox-DD [PUP]
2014.9-160213

AVG
Megabrowse
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16213

Bitdefender
Adware.SwiftBrowse.CF
1.0.20.220

Clam AntiVirus
Win.Adware.Agent-12778
0.98/21411

Comodo Security
ApplicUnwnt
19629

Dr.Web
Trojan.BPlug.117
9.0.1.044

Emsisoft Anti-Malware
Adware.SwiftBrowse.CF
8.16.02.13.09

ESET NOD32
Win64/BrowseFox (variant)
10.10693

Fortinet FortiGate
Adware/Yotoon
2/13/2016

F-Prot
W32/A-c972e623
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CF
11.2016-13-02_7

G Data
Adware.SwiftBrowse.CF
16.2.24

IKARUS anti.virus
AdWare.SwiftBrowse
t3scan.1.6.1.0

K7 AntiVirus
Riskware
13.183.13504

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.666

McAfee
Artemis!183F25B07FA5
5600.6490

MicroWorld eScan
Adware.SwiftBrowse.CF
17.0.0.132

NANO AntiVirus
Riskware.Win32.Yotoon.denstu
0.28.2.62286

nProtect
Trojan-Clicker/W32.Yotoon.54688
14.09.26.01

Panda Antivirus
Trj/Chgt.F
16.02.13.09

Qihoo 360 Security
Win32/Virus.Adware.720
1.0.0.1015

Quick Heal
AdWare.Yotoon.r6 (Not a Virus)
2.16.14.00

Reason Heuristics
PUP.Yontoo.Megabrowse (M)
16.2.13.21

Sophos
Browse Fox
4.98

Trend Micro House Call
Suspicious_GEN.F47V0720
7.2.44

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
31656

Zillya! Antivirus
Adware.Yotoon.Win64.6
2.0.0.1935

File size:
53.5 KB (54,816 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

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

Digital Signature
Signed by:
Megabrowse

Authority:
COMODO CA Limited

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

Valid to:
5/8/2015 6:59:59 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 7:46:38 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:VqbP7EDNtMTw/RWDjR/McKV5qEXGBJgxgZ+4AOmvtnBU6+RRx+H+z:kP7EJSTukuzTrGYs+JNBUtRO8

Entry address:
0xA73E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, CA, E3, FF, FF, CC, CC, B4, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 84, AB, 00, 00, 94, 90, 00, 00, A0, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BA, AB, 00, 00, 80, 90, 00, 00, AC, A7, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D6, AB, 00, 00, 8C, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, AB, 00, 00, 92, AB, 00, 00, 00, 00, 00, 00, C2, AB, 00, 00, 00, 00, 00, 00, AC, A8, 00, 00, C4, A8, 00, 00, D6, A8...
 
[+]

Entropy:
6.3321

Code size:
36.3 KB (37,120 bytes)

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

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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