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The Trojan horses are some of the most widespread online threats that hackers use to cause harm to the web users. These threats are...

The Trojan horses are some of the most widespread online threats that hackers use to cause harm to the web users. These threats are stealthy, very harmful and typically have many malicious abilities. They can be programmed to perform specific criminal tasks one after the other and, sadly, in most of the cases, the victims cannot detect and stop them without the help of reliable antivirus software. One recently reported Trojan-based virus that our team has come across is called Win32:KadrBot. This specific infection is quite advanced – it can secretly gain access to your entire system and all the data that you keep on it. But what is even more problematic is that it can do whatever it wants with your computer. For instance, it may corrupt your files and your software, modify some vital system files and processes, hack into your mic and webcam, collect some sensitive information about your personal or professional life, steal your passwords and bank account details and much more.

In case that you have recently detected Win32:KadrBot on your machine, you should not waste even a minute and immediately remove this nasty Trojan before it manages to cause any serious harm. However, we have to warn you that dealing with this type of malware may be quite challenging for inexperienced web users. That’s why we do not advise you to experiment with your malware removal skills and instead use a trusted removal tool that can correctly detect and safely remove the infection if you are not sure whether you can handle the manual removal method. On this page, there is such a tool in case that you don’t have one and you can run a full scan with it to eliminate Win32:KadrBot. Alternatively, there is a manual removal guide below, which contains a set of instructions for the manual removal of the threat.

Why is it important to remove Win32:KadrBot on time?

A big problem with Win32:KadrBot and with most Trojans in general is the fact that you may not know that they are hiding inside your computer. Such threats usually lack any visible symptoms which can give them away. That’s why you cannot solely rely on your observation skills without having a reliable antivirus program at your side. A trusted security tool, however, can greatly help you with the detection of the Trojan because its job is to detect hidden malicious activities, which may be performed in the background of your system. What is more, such software can protect your PC from other nasty infections which the Trojan may try to secretly insert. For instance, if removed on time, Win32:KadrBot may be prevented from delivering a Ransomware or a Spyware infection into your system or it may be stopped from messing with your data. If not correctly detected, however, the malware may continue to perform various criminal activities without showing any indications of its presence and sooner or later you will likely end up with some serious damage done to your computer. Not to mention that the hackers may use their creation for blackmailing purposes, email scam campaigns, fraud, theft and much more.

SUMMARY:

NameWin32:KadrBot
TypeTrojan
Danger Level High (Trojans are often used as a backdoor for Ransomware)
Symptoms In some rare cases you may notice system errors, frequent crashes, higher CPU or RAM usage and abnormal activities. 
Distribution Method Mostly found inside malicious emails with harmful attachments, spam messages, torrents, pirated content, ads. 

Special Offer

We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite's files for you. 
Click to Download Spyhunter's Anti-Malware Scanner.

More information about SpyHunter and steps to uninstall. Please review SpyHunter's EULAThreat Assessment Criteria, and Privacy Policy. Keep in mind, only SpyHunter’s scanner is free. If it detects a malware, you'll need to purchase its full version to remove it.

Remove Win32:KadrBot Virus

Android user, please use our Android Malware Removal guide.

Mac user, please use our Mac Malware Removal guide.

The following guide will help our readers get rid of the unpleasant Win32:KadrBot software. Follow the instructions and complete each step for best results. If you have any questions, feel free to ask them using our comment section down below.

Preparation: Entering Safe Mode and Revealing Hidden Files and Folders

Before you proceed with the actual removal instructions, you will need to take two extra steps in order to ensure that the guide has maximum effect.

For best results, we advise our readers to boot into Safe Mode prior to attempting to remove the virus. If you do not know how to do that, here is a separate How to Enter Safe Mode guide.

Also, in order to be able to see any potentially undesirable files, you should reveal any hidden files and folders on your PC – here is how to do that.

Removing Win32:KadrBot

Step 1: Checking the Task Manager

Open your Task Manager by using the Ctrl + Shift + Esc keys and go to the Processes tab. Look for any suspicious processes. For example, any unfamiliar process that uses high amounts of RAM and/or CPU. If you aren’t sure if a certain process comes from malware, tell us in the comments.

Right-click on any process that you consider shady and select Open File Location. Delete anything from the file location of the process.

 

Step 2: Disabling Startup programs

Use the Winkey + R keyboard combination to open the Run search bar and type msconfig. Hit Enter and in the newly opened window, go to the Startup tab. There, look for suspicious entries with unknown manufacturer or ones that have the name Win32:KadrBot on them. Right-click on those, and select disable.

Step 3: Uninstalling unwanted programs

Go to Start Menu > Control Panel > Uninstall a Program. Click on Installed On to sort the entries by date from most recent to oldest and look through the programs that come at the top of the list. Right-click on any entries that appear shady and unwanted and then select Uninstall to remove them from your PC. If you see the name Win32:KadrBot in the list of programs, be sure to remove the software without hesitation.

Step 4: Checking for shady IP’s

Open your Start Menu and copy-paste notepad %windir%/system32/Drivers/etc/hosts in the search bar. In the notepad file, look below Localhost and see if there are any IP addresses there. If there are some, send them to us in the comments and we will tell you if you should take any action.

Special Offer

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 - to see whether it will find malicious programs on your PC.

Download SpyHunter

More information about SpyHunter and steps to uninstall. Please review SpyHunter's EULAThreat Assessment Criteria, and Privacy Policy. Keep in mind, only SpyHunter’s scanner is free. If it detects a malware, you'll need to purchase its full version to remove it.

Step 5: Cleaning-up the browsers

You will also have to uninstall any undesirable browser extensions from your browser programs. Here’s how to do that for some of the more popular browsers:

Chrome

Open Chrome and open its main menu. Go to More Tools > Extensions. Look through the list of extensions and uninstall any that you think could be suspicious. To remove them – click on the trash can icon next to each extension.

You can also use a specialized Chrome CleanUp tool if you cannot manually remove a certain extension. Here is an article where you can learn more about the CleanUp tool.

Firefox

Open Firefox and go to its Menu. Select the Add-ons button.From the left panel, select Extensions and take a look at the different entries. Remove any of the that might be unwanted.

IE

Once you open your IE browser, click on the Tools button at the top-right corner of the program and from the drop-down menu select Manage Add-ons. Check each one of the four different groups of add-ons and search for anything that seems undesirable. If you find anything, click on it and them select Remove.

Edge

Open the main menu of Microsoft Edge and go to Extensions. Find the extensions that you believe could be unwanted and right-click on them. Then, select Uninstall.

Step 6: Checking the Registry Editor

Open the Run search bar again and type regedit in it. Hit Enter and once the Registry Editor opens press Ctrl + F. In the search field type Win32:KadrBot and click on Find Next. Tell us in the comments if any results came up when you searched for Win32:KadrBot in your PC’s Registry.

 

Step 7: Deleting recent entries

For this step, you will have to open your Start Menu and copy-paste the following lines, one by one:

  • %AppData%
  • %LocalAppData%
  • %ProgramData%
  • %WinDir%
  • %Temp%

Hit Enter after each one to open a file directory. In the directories, delete the most recent entries that you find there. In the Temp folder, delete all files.

Step 8: System Restore

In order to be fully sure that the unwanted software has been removed from your machine, you can also try using a Restore Point to roll back your system its last stable configuration. However, in order to do that, you would have to previously had had a restore point created. On most systems, such points get created automatically but this isn’t always the case.

  • If you want to learn how to configure System Restore and how to manually create Restore Points, follow this link.
  1. Open your Start Menu and type System Restore.
  2. Click on the first result – a setup wizard should open.
  3. Read the brief description of the process and select Next.
  4. Now, choose a restore from the presented list. You can also check the Show more restore points option in order to reveal any other restore points that might be saved on your PC.
  5. Click on Scan for affected programs to see what programs will get deleted or restored after you use the Restore Point. (optional)
  6. Click on next and take and then select Finish.
  7. A warning window will appear telling you that once the process starts, it shouldn’t be interrupted. Select Yes and be patient as this might take some time. Do not do anything on your PC throughout the duration of the process.

Step 9: Windows Refresh/Reset

Use this method only if nothing else has worked so far as it is a last resort option. If you do not know how to do it, this separate guide will give you the information that you need.

Daniel Sadakov

Daniel Sadakov has a degree in Information Technology and specializes in web and mobile cyber security. He harbors a strong detestation for anything and everything malicious and has committed his resources and time to battling all manners of web and mobile threats. He has founded MobileSecurityZone.com, a website dedicated to covering the top tech stories and providing useful tips for the everyday user, in an effort to reach and help more people.

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