74,139,804 programs installed

Should I remove Block Operator?

What percent of users and experts removed it?
77% remove it23% keep it
Overall Sentiment
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(click star to rate)
How common is it?
Reach 0.0005%


VersionDistribution 100.00%

Block Operator

What is Block Operator?

This is a WinCheck 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".


During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. The primary executable is named bnshb3f6.exe. A majority of users end up uninstalling this less than a week of it being installed.
  • Malware detected in the program
  • Starts automatically
  • Displays unwanted advertisements
  • The experts agree, you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in Block Operator.
bnshb3f6.exe (1410f06cb9f4bb725ea7ceac64add0fc) has been flagged by the following 17 scanners:
Anti-Virus softwareVersionDetection
Lavasoft Ad-Aware 537 Gen:Variant.Adware.Graftor.187553
Agnitum Outpost 7.1.1 PUA.ConvertAd
ALYac Gen:Variant.Adware.Graftor.187553
Arcabit Trojan.Adware.Graftor.D2DCA1
avast! 2014.9-150816 Win32:Dropper-gen [Drp]
AVG 2016.0.3015 Generic_r
Baidu-International Adware.Win32.ConvertAd.NR
Bitdefender Gen:Variant.Adware.Graftor.187553
Cyren W32/Adware.NGVH-3164
Dr.Web Adware.ClickMeIn.1782
Emsisoft Anti-Malware Gen:Variant.Adware.Graftor.187553
ESET-NOD32 9.12085 a variant of Win32/Adware.ConvertAd.NR
F-Secure 11.2015-16-08_1 Gen:Variant.Adware.Graftor
G Data 15.8.25 Gen:Variant.Adware.Graftor.187553
K7 AntiVirus 13.208.16871 Adware
K7GW 13.208.16871 Adware ( 004c22981 )
MicroWorld-eScan Gen:Variant.Adware.Graftor.187553
       View all 17 all detections

Program detailsProgram details

Installation folder: C:\users\user\appdata\local\14e4d444-1431512715-47ac-83b9-101f7418bc40
Uninstaller: "C:\users\user\appdata\Local\14E4D444-1431512715-47AC-83B9-101F7418BC40\uninstall.exe"

Program filesFiles installed by Block Operator

Program executable:bnshb3f6.exe (Malware detected)
Additional files:
  • Uninstall.exe

Program behaviorsBehaviors exhibited

Startup File (All Users Run)
  • bnshB3F6.exe is loaded in the all users (HKLM) registry as a startup file name 'WinCheck' which loads as C:\users\user\appdata\Local\14E4D444-1431512715-47AC-83B9-101F7418BC40\bnshB3F6.exe.

How do I remove Block Operator?

Quickly and completely remove Block Operator from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Download "Should I Remove It?", it's FREE!Remove Block Operator from your computer.
Or, you can uninstall Block Operator from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. 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: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program Block Operator, click it, and then do one of the following:
    • Windows Vista/7/8: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove Block Operator.
  4. 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.
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Win 8 57%
Win 7 (SP1) 43%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 77%
Keep it 23%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 8 57.14%
Windows 7 42.86%
Which OS releases does it run on?
Windows 7 Home Premium 42.86%
Windows 8.1 42.86%
Windows 8.1 Single Langua... 14.29%

Distribution by countryGeography

58.33% of installs come from the United States
Which countries install it?
  United States 58.33%
  France 16.67%
  Canada 8.33%
  Portugal 8.33%
  Turkey 8.33%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
ASUS 42.86%
Hewlett-Packard 28.57%
Samsung 14.29%
Lenovo 14.29%
Common models
Samsung R720 14.29%
LENOVO 20B7A0N3TX 14.29%
HP Pavilion dv7 Notebook ... 14.29%
HP 15 Notebook PC 14.29%
ASUSTeK X550JK 14.29%
ASUSTeK S400CA 14.29%


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