How to remove Trojan.groooboor.gen.3 "virus"

In which way do I delete Trojan.groooboor.gen.3 from the system? What is Trojan.groooboor.gen.3 and how did it infest my system? What are the harmful Trojan viruses and how you can shield the machine from them? In this guide we'll answer all these questions and propose simple and safe instructions for uninstalling Trojan viruses from all versions of Windows.


Trojan virus example


Today we'll talk about Trojan.groooboor.gen.3, that infected the system, and you unwillingly assisted it to do so. Trojan.groooboor.gen.3 isn't useful and has no helpful functions, so it should be deleted as fast as possible. The safest manner to prevent the Trojan penetration is to know how to distinguish malware. Here is the brief description of Trojans, of their capabilities, strengths and weaknesses. Trojans are the distinct type of malware that is known for stealthiness and multitasking, but isn't capable of independently infecting user's computer. In fact, Trojans can't be considered viruses, since viruses know how to reproduce and independently infect computers. Trojans can be compared to parasites: they are completely useless and weak, but with help of the host they might call many issues. The creators of the Trojan have to give it the form of a decent program, and put the Trojan to a popular website from which the maximum number of users can download it. Since then, the program waits until a trusting visitor will download it and become a host. We need to inform you that Trojans are infrequently distributed separately, but in most cases you can find them in packages AKA “bundles” that contain several viruses, malware, adware or Trojans.


When Trojan after all finds a host it starts to pursue its aims, which usually means nothing good for you and your PC. Trojan viruses are the biggest type of dangerous programs, and can include your PC in a criminal scam, call a lot of problems with your system or steal your passwords. Here is a short list of possible manners for using Trojan viruses:

  • Trojan programs, due to their invisibility, are nearly perfect tools for espionage. Trojan can exist in an unprotected computer for a long time, collecting information against its owner, passwords, visited websites, accounts and, possibly, even the text entered through keyboard.
  • The less effective manner of Trojans use is to develop so-called botnets. By these we mean many computers, Apple devices or even "smart" vacuum cleaners combined by swindlers in one net that they use for illegal purposes. The multiplicity of purposes is pretty wide: from DDoS attacks on any web-sites to large malspam campaigns, and it usually results in limitations from Google for your IP address or the entire subnet.

All these ways of applying Trojan viruses can be carried out solely or altogether. Except enumerated above main purposes that directly benefit swindlers, Trojans have multiple side effects: they use the CPU your machine's recourses, clog the system with unwanted programs and prevent the device from running for its intended mission. Knowing this, you will abide our advice and delete all Trojans for good.

Removal instruction

Step 1. Boot the system into safe mode

  • Press Start
  • Type Msconfig and press Enter

Safe mode. Step 1


  • Select Boot tab

Safe mode. Step 2



  • Select Safe boot and press Ok

More information about Safe mode: What is Safe Mode and how to boot computer in Safe Mode


Step 2. Show all hidden files and folders

  • Press Start
  • Click on Control Panel

Show hidden files. Step 1


  • Select Appearance and Personalization

Show hidden files. Step 2


  • Click on Folder Options
  • Select View tab
  • Select Show hidden files, folders and drives

Show hidden files. Step 3


  • Press Ok


Step 3. Remove virus files


Check next folders to find suspicious files:

  • %TEMP%
  • %ProgramData%


Step 4. Fix hosts file

  • Go to %SystemRoot%\System32\drivers\etc\ folder



  • Open hosts file using Notepad or other text editor
  • Delete suspicious elements
  • Basic hosts file looks like this:



Step 5. Clean registry (for experienced users)

  • Click Start
  • Type Regedit.exe and press Enter
  • Clean startup registry keys
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\RunServices
  • HKEY_LOCAL_MACHINE(HKEY_CURRENT_USER)\Software\Microsoft\Windows\CurrentVersion\RunServicesOnce
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit

Step 6. Scan computer with antivirus


Here's a plain and fast technique to remove Trojans with help of Spyhunter antiviral tool. This program will not only clear your computer of any currently available programs on it, but at once secure it from other suchlike troubles. Spyhunter acts automatically, and to delete some viruses you will just have to purchase antivirus, install it and start the scanning and deletion processes. We consider this way of uninstalling to be a priority, since it's difficult for an ordinary user to find the viral files. By erasing the important file, you can seriously damage the device, and call its critical fault. If you doubt the effectiveness of Spyhunter, you can test it in action by installing a free scanner.


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Step 7. Disable Safe Mode and restart computer

  • Press Start
  • Type Msconfig and press Enter
  • Select Boot tab
  • Remove the check near Safe boot


Video with trojan virus





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