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mountainbikebho.dll

Mountain Bike

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module mountainbikebho.dll by Mountain Bike has been detected as adware by 26 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘Mountain Bike 1.0.0.7’. This file is typically installed with the program Mountain Bike by Yontoo Technology, Inc. which is a potentially unwanted software program. 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:
Mountain Bike  (signed and verified)

Product:
Mountain Bike

Version:
1.0.0.7

MD5:
7f3aa0f0f21d68b238e1a47e94a0158a

SHA-1:
11aa8e6119cba0f621cee0a2d9e48f10039884a4

SHA-256:
3f9d93160ad2d572ad7d9454f861db147edca288142b5a06379350c785c6d754

Scanner detections:
26 / 68

Status:
Adware

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

Analysis date:
4/27/2024 4:06:45 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.04.25

Avira AntiVirus
ADWARE/BrowseFox.Gen2
7.11.214.2

AVG
Generic
2016.0.3129

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.15425

Bitdefender
Gen:Variant.Mikey.11547
1.0.20.575

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Browsefox-491
0.98/21511

Dr.Web
Trojan.Yontoo.1742
9.0.1.0115

Emsisoft Anti-Malware
Gen:Variant.Mikey.11547
8.15.04.25.03

ESET NOD32
Win32/BrowseFox.AE potentially unwanted (variant)
9.11528

F-Prot
W32/S-9c4b2ea6
v6.4.7.1.166

G Data
Gen:Variant.Mikey.11547
15.4.25

herdProtect (fuzzy)
variant of mountainbike.dll (Adware)
2015.7.26.5

IKARUS anti.virus
not-a-virus:AdWare.Win32.Agent
t3scan.1.8.9.0

K7 AntiVirus
Trojan
13.203.15703

Malwarebytes
PUP.Optional.MountainBike.A
v2015.04.25.03

McAfee
Artemis!7624048B9FEF
5600.6785

NANO AntiVirus
Trojan.Win32.Yontoo.dnkubo
0.30.20.1219

Qihoo 360 Security
HEUR/QVM30.1.Malware.Gen
1.0.0.1015

Reason Heuristics
Threat.Yontoo.MountainBike
15.4.24.23

Rising Antivirus
PE:Adware.BrowseFox!6.1D8B
23.00.65.15423

Sophos
Generic PUA AF
4.98

Trend Micro House Call
Suspicious_GEN.F47V0325
7.2.115

Vba32 AntiVirus
AdWare.MSIL.Agent
3.12.26.3

VIPRE Antivirus
Yontoo
39644

File size:
262.7 KB (269,048 bytes)

Product version:
1.0.0.7

Copyright:
(c) Mountain Bike. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\mountain bike\mountainbikebho.dll

Digital Signature
Signed by:
Mountain Bike

Authority:
VeriSign, Inc.

Valid from:
1/10/2015 7:00:00 PM

Valid to:
1/11/2016 6:59:59 PM

Subject:
CN=Mountain Bike, O=Mountain Bike, L=San Diego, S=California, 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:
25B97080EDAA57F7AD57607CEEA9C13E

File PE Metadata
Compilation timestamp:
4/24/2015 12:06:38 AM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:rc6e03fEbUppVqU+kB3hh+4wF63wY+cQY9ZKTLK8kWcES7:rc6e0sGpVek37dx9ZrJdr

Entry address:
0xF515

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, EA, 7E, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, D8, 21, 03, 10, E8, 4C, 02, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 6C, 77, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, C4, 93, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.0743

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

Internet Explorer BHO
Display name:
Mountain Bike 1.0.0.7

CLSID:
{a8b71ba7-8a3a-46b8-b803-b4244d1ea31f}


The file mountainbikebho.dll has been discovered within the following program.

Mountain Bike  by Yontoo Technology, Inc.
Mountain Bike is an adware program that installs as a web browser plugin to inject and display advertisements.
mountainbikeinfo.com/support
87% remove it
 
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