Should I remove Contrast Sound?

What percent of users and experts removed it?

78% remove it22% keep it

Overall Sentiment

Bad

What do people think about it?

(click star to rate)

How common is it?

Reach 0.0001%

Versions

Version	Distribution
1.0.0.0	100.00%

Contrast Sound

Remove Contrast Sound

What is Contrast Sound?

This is a WinCheck/CMI (variant) adware/browser hijacker variant that injects code into the user's web browser (IE, Chrome and Firefox). It is known as an ad-injector, a malicious process that once inside the web browser will hijack existing advertisements of underlying web sites (not associated with the website itself). It will also inject new ads in white space on the site or images that have standard banner sizes. These ads are typically for promoting shopping discount coupons, ads for PC optimizers or bundled PUP offers, or malvertising since it runs on sketchy ad networks.This runs as a startup process called WinCheck in the user's startup registry (Run key) and will execute each time the computer is restarted and the user logs in.

How do you know if you are infected? First, if you have this program installed then this adware is most likely still running. Next, you see ads in the browser that say something like "Ads by WinCheck".

Overview

Upon installation and setup, it defines an auto-start registry entry which makes this program run on each Windows boot for all user logins. The main program executable is bnside33.exe. Typically most users end up uninstalling this just after a few days.

Possible malware installed by this program
Automatically starts with Windows
Displays unwanted advertisements
The experts agree, you should remove it!

Warning, multiple anti-virus scanners have detected possible malware in Contrast Sound.

bnside33.exe (e6ffce0af2af45bda330fe81923fe3fb) has been flagged by the following 10 scanners:
Anti-Virus software	Version	Detection
Lavasoft Ad-Aware	537	Application.Generic.1233716
AVG	2016.0.3015	Generic6
Baidu-International	4.0.3.15816	Adware.Win32.ConvertAd.77
Bitdefender	1.0.20.1140	Application.Generic.1233716
ESET-NOD32	9.11460	a variant of Win32/Adware.ConvertAd.DZ
F-Secure	11.2015-16-08_1	Application.Generic.1233716
G Data	15.8.25	Application.Generic.1233716
MicroWorld-eScan	16.0.0.684	Application.Generic.1233716
Symantec	8/16/2015 rev. 1	WS.Reputation
Tencent	1.0.0.1	Trojan.Win32.Qudamah.Gen.4

Program details

Installation folder: C:\users\user\appdata\local\890e2d14-1427546130-45d1-ae66-bc80e8bfeb0f

Uninstaller: "C:\users\user\appdata\Local\890E2D14-1427546130-45D1-AE66-BC80E8BFEB0F\uninstall.exe"

Files installed by Contrast Sound

Program executable:	bnside33.exe (Malware detected)
Path:	C:\users\user\appdata\local\890e2d14-1427546130-45d1-ae66-bc80e8bfeb0f\bnside33.exe
MD5:	e6ffce0af2af45bda330fe81923fe3fb

Additional files:

Uninstall.exe

Behaviors exhibited

Startup File (All Users Run)

bnsiDE33.exe is loaded in the all users (HKLM) registry as a startup file name 'WinCheck' which loads as C:\users\user\appdata\Local\890E2D14-1427546130-45D1-AE66-BC80E8BFEB0F\bnsiDE33.exe.

How do I remove Contrast Sound?

You can uninstall Contrast Sound from your computer by using the Add/Remove Program feature in the Window's Control Panel.

On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:

Windows Vista/7/8/10: Click Uninstall a Program.
Windows XP: Click Add or Remove Programs.

When you find the program Contrast Sound, click it, and then do one of the following:

Windows Vista/7/8/10: Click Uninstall.
Windows XP: Click the Remove or Change/Remove tab (to the right of the program).

Follow the prompts. A progress bar shows you how long it will take to remove Contrast Sound.
If for some reason uninstallation fails, please install Microsoft's uninstall fixer utility which will help fix problems with programs that can't be uninstalled at support.microsoft.com.