Virus Removal Guides



Sitool is a virus recognized as a  Trojan Horse virus  that gets distributed across the Internet with the help disguise. Threats like Sitool are typically disguised as seemingly safe files that users willingly download, thus allowing the malware to gain Admin privileges in the computer.


The Sitool.exe malware is used as a transmitter of other nasty viruses such as Ransomware, Worms or Spyware

There are thousands of nasty cyber threats on the Internet but the Trojans are probably the most common and the most widespread of them all. Those harmful computer programs are also very versatile and this makes them a malware of choice for many cyber criminals, online crooks and fraudsters. On this page, we will speak about one particularly sneaky and nasty Trojan-based infection called Sitool and will show you how to safely remove it from your system in case that you have the misfortune to encounter it. It is very important to detect and delete this threat as soon as you notice it because the longer it remains in your PC, the greater the damage it may cause. There are many ways in which the hackers can use a Trojan like Sitool and Wup.exe against you. In most of the cases, this malware is used as a transmitter of other nasty viruses such as Ransomware, Worms or Spyware. Typically, the contamination happens with the help of various legitimate-looking and intriguing types of web content. These could be phishing emails, spam messages, infected attachments, different ads, offers and redirect links, torrents, and even software installers. The idea of the camouflage is to trick the users into believing that they are actually opening a real offer or downloading some useful application, which, in fact, contains the Trojan Horse inside. Fake system update requests and pop-up notifications may also be used as a means of spreading the infection. However, the tricks and the harmful abilities of Sitool don’t stop here. Keep in mind that this is a very dangerous program which has been created to cause harm and to serve the interests of its criminal creators. That’s why, once the infection has found its way inside your PC through one of its numerous transmitters, it secretly starts to launch different harmful processes in the background. Unfortunately, it is almost impossible to detect and remove those harmful processes without the help of reliable security software because the Trojan rarely shows any visible symptoms which can give it away. Before you realize it, Sitool may track down every key that you press and take screenshots of everything that you do. This way it may steal your personal information, gain access to your banking accounts and details, or collect sensitive and embarrassing photos, videos, and other data, related to your work and your personal life. Sitool may also cause serious issues related to your system’s performance and stability. With its help, the hackers may gain unauthorized access to your OS and corrupt, replace or delete different files, system folders, and important components and install other malicious code.

How to remove Sitool safely and quickly?

Trojans such as Sitool are far more problematic than a regular computer virus that why one needs a reliable approach in order to deal with such threats effectively. The greatest challenge is to detect the correct malicious files in the system which is not an easy task if you don’t have some advanced computer knowledge or at least a professional removal tool. You should never try to remove Trojans by deleting random files from the system because you may cause serious issues to your PC and damage the OS. That’s why we suggest you to strictly follow the steps shown in the removal guide below or use the assistance of the Sitool removal tool attached in the instructions.


Name Sitool
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Trojans rarely show visible symptom of their presence and are hard to detect without professional software.
Distribution Method  Spam messages, malicious attachments, fake ads, torrents, infected downloads, illegal websites.
Detection Tool

OFFER *Read more details in the first ad on this page, EULA, Privacy Policy, and full terms for Free Remover.

Remove Sitool Malware

If you are looking for a way to remove Sitool you can try this:

  1. Click on the Start button in the bottom left corner of your Windows OS.
  2. Go to Control Panel -> Programs and Features -> Uninstall a Program.
  3. Search for Sitool and any other unfamiliar programs.
  4. Uninstall Sitool as well as other suspicious programs.

Note that this might not get rid of Sitool completely. For more detailed removal instructions follow the guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
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Analyzing 0 s
Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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    After you open their folder, end the processes that are infected, then delete their folders. 

    Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

    Hold together the Start Key and R. Type appwiz.cpl –> OK.

    You are now in the Control Panel. Look for suspicious entries. Uninstall it/them. If you see a screen like this when you click Uninstall, choose NO:

    To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

    If you want to avoid the risk, we recommend downloading SpyHunter
    a professional malware removal tool.

    More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

    Type msconfig in the search field and hit enter. A window will pop-up:

    Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

    • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.

    Hold the Start Key and R –  copy + paste the following and click OK:

    notepad %windir%/system32/Drivers/etc/hosts

    A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

    If there are suspicious IPs below “Localhost” – write to us in the comments.

    Type Regedit in the windows search field and press Enter.

    Once inside, press CTRL and F together and type the virus’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

    • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
      HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
      HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

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