TeslaCrypt 4.0 Virus Ransomware Removal

This page aims to help you remove the TeslaCrypt 4.0 Virus. These TeslaCrypt 4.0 Virus removal instructions work for all versions of Windows.

If all of your files have recently acquired a strange extension and are unusable, then it is likely that you have been targeted with a ransomware virus. Judging from the file extension used this virus is probably TeslaCrypt 4.0 Virus. It is a relatively new addition to the ransomware scene and it’s still viral, thus we decided to make a guide on how to handle it. Please don’t instantly skip to the removal instructions – there is a lot of useful information that you can learn from this article.

TeslaCrypt 4.0 – how the virus works

The biggest reason why ransomware viruses are such a huge threat is the fact that files encrypted by them won’t return to their original state even if the virus is removed. The only way to decrypt these files is to obtain the necessary code, which is exactly what the hackers want to sell you. Fortunately, some alternative methods do exist, but they are far from perfect. We’ll do everything possible to save your files without having to pay the ransom, so stay tight.

It is far easier to prevent your PC from becoming infected in the first place than it is to handle this virus. Please keep that in mind, because ransomware has been growing in popularity and it is not unlikely to encounter any of its brothers in the future. A computer infected by the TeslaCrypt 4.0 Virus (or similar ransomware) can be saved if quick action is taken.

While the ransomware will try to remain invisible once it gets inside your computer, it will take some time for it to encrypt your files. You can notice its presence if your PC is behaving much worse than usual and ordinary programs take a long time to load or function properly. The encryption process used by TeslaCrypt 4.0 is fairly CPU/RAM hungry, so if you open your Task Manager you may be able to spot the process. It will usually come from an “Unknown” manufacturer or have a blank space and it will consume a lot of memory and CPU power. If you spot anything like this it is advisable to immediately shut down the computer (pull the plug if necessary) and seek professional help.

Paying the ransom – is it worth it?

It is a sad fact that many people prefer to pay the ransom and this is precisely the reason why there are so many ransomware viruses in circulation – apparently extortion is a lucrative business. Unfortunately the stories of many people who tried to pay, but got burnt are untold. The reality is that you are extorted by cyber criminals to pay the money in BitCoins – an untraceable online currency. You get no guarantee that you will get your information back, but you can be assured that this money will be put into excellent use in the creation of a new ransomware agent. Our advice is to try and salvage as much of your encrypted files as possible and forget about payment altogether.

Distribution of TeslaCrypt 4.0

Believe it or not, Trojan horse viruses have become the primary way in which ransomware viruses reach our computers. Once a Trojan horse gets installed into your system it can communicate with a remote server and install the ransomware (and possible future versions of the same) on your PC. Since you already have a ransomware infection it is highly likely that you have a Trojan on boards as well. Unfortunately these things are pretty good at the hide-and-seek game, the only sure way to find it remains the use of security software. If you already have such a program have it do a scan on your PC, if you don’t or if it fails to produce any convincing results you can try the software we’ve found to be best in the field. Click on one of the banners in our page.


Name TeslaCrypt 4.0
Type Ransomware
Danger Level High (Data ruined by the virus is very hard to recover)
Symptoms Unexplained sudden PC slowdown, followed by file encryption and virus reveal.
Distribution Method Loaded by a Trojan horse “dropper” virus, but also possible to be directly installed via malicious link or file.
Detection Tool Ransomware are notoriously difficult to track down. Use SpyHunter – a professional parasite scanner – to make sure you find all files related to the infection.

Keep in mind, SpyHunter is a malware detection tool. To remove the infection, you need to purchase the full version.
More information about SpyHunter and steps to uninstall.

Remove TeslaCrypt 4.0

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

This is the first preparation.


To remove parasite, you may have to meddle with system files and registries. Making a mistake and deleting the wrong thing may damage your system.
Avoid this by using SpyHunter - a professional Parasite removal tool.

Keep in mind, SpyHunter’s malware & virus scanner is free. To remove the infection, you'll need to purchase its full version. More information about SpyHunter and steps to uninstall.

The first thing you must do is Reveal All Hidden Files and Folders.

  • Do not skip this. TeslaCrypt 4.0 may have hidden some of its files.

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:

hosts_opt (1)

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


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


Go in Startup —> Uncheck entries that have “Unknown” as Manufacturer.


Press CTRL + SHIFT + ESC simultaneously. Go to the Processes Tab. Try to determine which ones are a virus. Google them or ask us in the comments.


Right click on each of the virus processes separately and select Open File Location. End the process after you open the folder, then delete the directories you were sent to.



Type Regedit in the windows search field and press Enter. Once inside, press CTRL and F together and type the virus’s Name.

Search for the ransomware in your registries and delete the entries. Be extremely careful – you can damage your system if you make a big mistake.

Type each of the following in the Windows Search Field:

  1. %AppData%
  2. %LocalAppData%
  3. %ProgramData%
  4. %WinDir%
  5. %Temp%

Delete everything in Temp. The rest just check our for anything recently added. Remember to leave us a comment if you run into any trouble!


How to Decrypt files infected with TeslaCrypt 4.0

There is only one known way to remove this virus successfully – reversing your files to a time when they were not infected. There are two options you have for this:

The first is a full system restore. To do this type System Restore in the windows search field and choose a restore point. Click Next until done.

system restore_opt

Your second option is a program called Recuva

Go to the official site for Recuva and download it from there – the free version has everything you currently need.

When you start the program select the files types you want to recover. You probably want all files.

Next select the location. You probably want Recuva to scan all locations.

Now click on the box to enable Deep Scan. The program will now start working and it may take a really long time to finish – maybe even several hours if your HDD is really big, so be patient and take a break if necessary.

You will now get a big list of files to pick from. Select all relevant files you need and click Recover.

Did we help? Found an alternative solution? Share your feedback with us so we can help other people in need!

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