System Check

This page is all about malware known as System Check. Also included is step-by-step removal guide as well as tips to protect your computer against this type of harmful threat.

System Check is a fake computer tool that carry out untrue scan on the computer and state that it found critical hard drive errors. It also informs several corrupted registry entries that can cause system failure. Moreover, it will identify critical errors in computer’s memory that needs immediate repair. All these reports are false. It is an imaginary act formed by malware author in order to persuade you to fix the PC through a paid version of System Check.

System Check Trojan spreads so fast. Since it was first seen on first quarter of 2012, the malware still exist until now. It is believed that this threat have infected huge number of computer ever since. Moreover, there are reports that many falls into the trap created by System Check. Many computer users wasted their money in buying a worthless program.

This malware is perhaps one of the most harmful programs that lurk up to this date. As soon as it is spotted on your computer, immediately run antivirus scan. You need to remove this threat before it can cause more damages to the computer. Some victim’s claims that System Check has managed to lock their files and it is now unusable. This malware can also delete your installed antivirus program to avoid removal. Therefore, you must not waste time. Remove System Check as soon as possible.

TypeRogue
Sub-TypeFakeAV
OS AffectedWindows XP, Windows Vista, Windows 7

What are the Symptoms of System Check virus Infection?

Obvious symptoms of this malware infection includes System Check scan when you start Windows. It will run a scan even without a command from computer user. See the image for your reference.

Fake Scan by System Check

It will modify Windows Registry and add the following entries:
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main “Use FormSuggest” = ‘Yes’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop “NoChangingWallPaper” = ’1′
‘.zip;.rar;.nfo;.txt;.exe;.bat;.com;.cmd;.reg;.msi;.htm;.html;.gif;.bmp;.jpg;.avi;.mpg;.mpeg;.mov;.mp3;.m3u;.wav;.scr;’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer “NoDesktop” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System “DisableTaskMgr” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “.exe”
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system “DisableTaskMgr” = ’1′
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download “CheckExeSignatures” = ‘no’
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced “ShowSuperHidden” = ’0′

The threat will drop the following malicious files:
%CommonAppData%\~
%CommonAppData%\~
%CommonAppData%\.exe
%AppData%\Microsoft\Internet Explorer\Quick Launch\System Check.lnk
%StartMenu%\Programs\System Check\
%StartMenu%\Programs\System Check\System Check.lnk
%StartMenu%\Programs\System Check\Uninstall System Check.lnk
%Temp%\smtmp\

Follow these Procedures to Remove System Check

Procedure 1 : Run antivirus scan under Safe Mode with Networking

Procedure 2 : Scan the computer with anti-malware program to complete the removal of System Check

Procedure 3 : Use Fake Antivirus scanner and removal tool to make sure that no more remnants of

Procedure 1: Scan Computer in Safe Mode Using Installed Anti-virus Program

1. First, we will try to remove System Check by running a virus scan under Safe Mode with Networking. To perform this task, please complete these procedures.

Start in Safe Mode with Networking (Windows XP/Vista/7 Instruction)

- Please restart the computer and just before Windows start, press F8 on your keyboard repeatedly. You will be presented with Advanced Options Menu.
- From the selections, choose Safe Mode with Networking. Please use keyboard's arrow up/down to navigate between selections and press Enter to proceed.

win7-safemode

Start Windows 8 in Safe Mode with Networking

- Please restart the computer and as soon as it begins to start, please press Shift+F8 keys.
- Instead of seeing Advance Boot Options, Windows 8 will display Recovery Mode. Continue with the given steps until you reach Safe Mode function.
- Click on 'See advanced repair options'.

win8-recovery

- Then, click on Troubleshoot.
- Next, please select Advanced options.
- On the next window, please choose Windows Startup Settings.
- Lastly, click on Restart button. Windows 8 will now restart and boot into Advanced Boot Option wherein you can run the system in Safe Mode with Networking.

win8-safemode

2. Open your installed anti-virus programs and update it to the most recent version by automatically downloading necessary updates.

3. Thoroughly scan the computer and remove all identified threats. Do not restart or turn off the computer after the scan process. You still need to run another scan. Please follow the next procedure.

Procedure 2: Scan and remove System Check files with MalwareBytes Anti-Malware

To remove System Check, download Malwarebytes Anti-Malware by clicking on the button below. This tool is effective in getting rid of Trojans, viruses and malware.

Download System Check Removel Tool

1. After downloading, please install the program using the default settings.
2. At the end of the installation, please make sure that it will download necessary updates.
3. Once update has completed. The tool will launch.
4. Thoroughly scan the computer and remove all threats detected by this anti-malware program.

Procedure 3: Run TrendMicro's Anti-Threat Toolkit (ATTK) to check and delete any remnants of System Check.

As an added help to remove System Check, you can scan the computer with Anti-Threat Toolkit. This software is provided and distributed by TrendMicro. Follow this procedure to run a scan with this tool.

1. Download the package by clicking on the button below. This will launch a new browser window that contains further details about the tool.

FakeAVRemover Download Link

2. Save the file to a location on your hard drive.
3. Browse for the location of the file and double-click to run. If you are using Windows Vista or Windows 7, right-click on extracted file attk_far_gui.exe and click on Run as Administrator.

Run FakeAVRemover

4. When program launch, it will run a command prompt to initialize, prepare components, and update the program.
5. Next it will open the graphical user interface (GUI) of Anti-Threat Toolkit.

FakeAVRemover GUI

6. Click on Scan Now. This operation will scan all System Check files and processes in your computer and display a list of result for possible Fake Antivirus program and malware that needs to be removed.

FakeAVRemover Scan

7. Tick all items that are detected by the program, and then click Clean. The tool will start removing System Check components from the computer.
8. If it asked you to restart Windows, please do so.

Protect your PC from System Check or Similar Attack

Turn On Safe Browsing Features

Internet Explorer - Activate SmartScreen Filter

Internet Explorer versions 8 and 9 has this feature called SmartScreen Filter. It helps detect phishing web sites and protect you from downloading malicious files online. To turn on SmartScreen Filter, follow these steps:

1. Please open Internet Explorer.
2. On top menu, select Tools (IE 9). For IE 8, please look for Safety menu.
3. Select SmartScreen Filter from the drop-down list and click on Turn on SmartScreen Filter.

IE SmartScreen Filter

4. Please restart Internet Explorer.

Google Chrome's Enable Phishing and Malware Protection

With Google Chrome's Phishing and Malware Detection feature, you will have lesser risks browsing the web. It will display a warning when the site you are trying to visit is suspicious. To enable Phishing and Malware Protection, please do these steps:

1. Open Google Chrome.
2. Click on the Customize and control Google Chrome (3-Bars Icon) located on top right corner of the browser.
3. Select Settings from the drop-down list.
4. Once on the settings page, click on Show advanced settings... at the bottom of the page to see the rest of the Chrome setup.
5. Locate Privacy section and mark 'Enable phishing and malware protection'.

Chrome Security Settings

6. Please restart Google Chrome. New settings keep your browser safe while surfing the web.

Mozilla Firefox - Block Attack Sites and Web Forgeries

Phishing and Malware Protection is a built-in feature on Firefox version 3 or later. It warns you when a page you are trying to visit contains phishing content or an attack site designed to drop threats on the computer. To help you keep safe while browsing the Internet using Firefox, please follow this guide:

1. Open Mozilla Firefox browser.
2. On top menu, click on Tools. Then select Options from the list.
3. Select Security and put a check mark on the following items:

  • Warn me when sites try to install add-ons
  • Block reported attack sites
  • Block reported web forgeries

Firefox Security Settings

Remove System Check & Protect Your Computer Now!

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