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utilmountainbike.exe

Mountain Bike

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilmountainbike.exe by Mountain Bike has been detected as adware by 14 anti-malware scanners. 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)

Version:
1.0.5592.24912

MD5:
46d935947d9a007748a8de69643d52e4

SHA-1:
efc5d88fe5414d21c1acc982be8387b2124f2892

SHA-256:
269a2fcca709cdc7958be13523fa70f412b1c4a422ae9f5008325cc78f282f63

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/27/2024 11:49:40 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.04.25

Avira AntiVirus
W32/Sality.AT
7.11.30.172

AVG
Generic
2016.0.3129

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.15425

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1742
9.0.1.0115

ESET NOD32
MSIL/BrowseFox.G potentially unwanted application
9.7.0.302.0

F-Prot
W32/S-e8c6878a
v6.4.7.1.166

herdProtect (fuzzy)
variant of updatemountainbike.exe (Adware)
2015.7.26.5

K7 AntiVirus
Adware
13.203.15707

McAfee
BrowseFox-FWI
5600.6785

NANO AntiVirus
Riskware.Win32.BPlug.djpkri
0.30.20.1219

Reason Heuristics
Threat.Yontoo.MountainBike
15.4.24.23

VIPRE Antivirus
Threat.4741131
39354

File size:
392.7 KB (402,168 bytes)

Product version:
1.0.5592.24912

Original file name:
MountainBike2015042421.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\mountain bike\bin\utilmountainbike.exe

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 10:50:36 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:FIfcpiQT7Ds7aTkaoiftGdM+YCAYUwWu64Kk0ZNou4L6D5wct7kQBSHSQusC:+fQXT7D1T/Pw6RwWJ80ZiZ+5BoC

Entry address:
0x61212

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
6.4344

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
381 KB (390,144 bytes)

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