What Is POHJ Virus?
The STOP/DJVU virus family has produced another variant, this time carrying the .pohj file extension and the _readme.txt ransom note. The main goal of this nasty infection is to cause an encryption of your files, preventing you from opening them. This may cause a lot of issues to your device as many of those files are used against you and you are led to believe in the extortion note that your only choice seems to be to pay a ransom in Bitcoin to fix them.
Read this article to learn further information about the activity of the POHJ Virus virus and what steps you can take to fully get rid of it.
POHJ Virus Virus Summary
Name | POHJ Virus virus, also known as UDS:Trojan.Win32.Chapak.gen, Ransom:Win32/StopCrypt.KM!MTB, Win32:PWSX-gen [Trj], Win32:PWSX-gen [Trj], A Variant Of Win32/GenKryptik.FHJB – more detections of this virus on VirusTotal |
File Extension | .POHJ Virus |
Type | Ransomware, Cryptovirus |
Short Description | The ransomware encrypts files on your computer system and demands a ransom to be paid to allegedly recover them. |
Symptoms | The POHJ Virus Virus ransomware will encrypt your files by appending the .POHJ Virus extension to them. |
Ransom Demanding Note | _readme.txt |
Distribution Method | Spam Emails, Email Attachments |
Detection Tool |
See If Your System Has Been Affected by malware
Download
Malware Removal Tool
|
POHJ Virus Virus – How Did I Get Infected?
POHJ Virus virus is very similar to other versions of this family, including .bbbw, .ckae and .bbbr and .avyu variants.These viruses may enter your computer system via one of the two main ways:
- If it is sent to you as an e-mail attachment or a URL.
- By being downloaded from a shady site.
In case the virus has infected via email, there is a solid chance that it could pretend to be one of the following kinds of files:
- Work-related files.
- Receipts.
- Invoices.
- E-Tickets for events or flights.
When downloaded and opened the files may trigger the following infection process:
Another infection scenario is if the files are downloaded from some type of a shady software download site. If this is the case, the files may appear like something the user is looking for, for example:
- Software patches.
- Self extracting archives or regular archives.
- Fake installation files.
- Cracked portable versions of apps.
- Software or game cracks.
- Key generator (or Keygen).
POHJ Virus Virus – What Does It Do?
Once POHJ Virus virus has infected the computer, it may begin to connect to a remote server, from where it may download the payload, which could comprised of more than one file and these files may be located in the following Windows directories:
- %Windows%
- %SystemDrive%
- %LocalLow%
- %AppData%
- %Local%
- %Temp%
- %System%
- %system32%
Among the files that are dropped on your computer system by this malware is also the _readme.txt ransom note:
Inactivity of this ransom ware on your computer system is to attack your main WindowsRegistries, setting strings in them in sub-keys, like the following:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
What Are .POHJ Virus Files
The .POHJ Virus files have been encrypted by using AES encryption algorithm. The way it works is the virus scans for the files, based on the file extensions that they have, while avoiding Windows files and drivers. The following data may be affected:
- Audio (.mp3, .wav, etc.).
- Picture file kinds (.jpg, .png, .etc).
- Videos (.mp4, .avi, etc.).
- Archive file formats (.zip, .rar, etc).
- Documents of different types (.docx, .pptx, etc.).
- Others.
As soon as the encryption process has completed, the virus may leave the files looking like the following:
Picture.jpg.POHJ Virus
How to Remove POHJ Virus?
The POHJ virus can be deleted from your device using the steps below. They are divided in manual or automatic removal methods and are designed to assist you in deleting any malicious software from your device either yourself or using a professional anti-malware program. The second option is the one that many experts would advise you to go for, because it includes scanning your machine using a professional tool which will fully check it undetected delete the latest threads prominent, plus ensure future protection.
How to Decrypt .POHJ Virus Files?
The .POHJ Virus files can be decrypted using the STOP Decrypter tool, created by independent researchers, like Michael Gillespie and others. We have shown how to do it and it should work for the offline key variants of the virus. The STOP Ransomware Decryption Steps or the video guide below have more on how to use this tool.
Video guide for using the STOP Ransomware Decryptor:
- Step 1
- Step 2
- Step 3
- Step 4
- Step 5
Step 1: Scan for POHJ Virus with SpyHunter Anti-Malware Tool
Ransomware Automatic Removal - Video Guide
Step 2: Uninstall POHJ Virus and related malware from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
Step 3: Clean any registries, created by POHJ Virus on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by POHJ Virus there. This can happen by following the steps underneath:
Before starting "Step 4", please boot back into Normal mode, in case you are currently in Safe Mode.
This will enable you to install and use SpyHunter 5 successfully.
Step 4: Boot Your PC In Safe Mode to isolate and remove POHJ Virus
Step 5: Try to Restore Files Encrypted by POHJ Virus.
Method 1: Use STOP Decrypter by Emsisoft.
Not all variants of this ransomware can be decrypted for free, but we have added the decryptor used by researchers that is often updated with the variants which become eventually decrypted. You can try and decrypt your files using the instructions below, but if they do not work, then unfortunately your variant of the ransomware virus is not decryptable.
Follow the instructions below to use the Emsisoft decrypter and decrypt your files for free. You can download the Emsisoft decryption tool linked here and then follow the steps provided below:
1 Right-click on the decrypter and click on Run as Administrator as shown below:
2. Agree with the license terms:
3. Click on "Add Folder" and then add the folders where you want files decrypted as shown underneath:
4. Click on "Decrypt" and wait for your files to be decoded.
Note: Credit for the decryptor goes to Emsisoft researchers who have made the breakthrough with this virus.
Method 2: Use data recovery software
Ransomware infections and POHJ Virus aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested a data recovery method that may help you go around direct decryption and try to restore your files. Bear in mind that this method may not be 100% effective but may also help you a little or a lot in different situations.
Simply click on the link and on the website menus on the top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.
POHJ Virus-FAQ
What is POHJ Virus Ransomware?
POHJ Virus is a ransomware infection - the malicious software that enters your computer silently and blocks either access to the computer itself or encrypt your files.
Many ransomware viruses use sophisticated encryption algorithms to make your files inaccessible. The goal of ransomware infections is to demand that you pay a ransom payment to get access to your files back.
What Does POHJ Virus Ransomware Do?
Ransomware in general is a malicious software that is designed to block access to your computer or files until a ransom is paid.
Ransomware viruses can also damage your system, corrupt data and delete files, resulting in the permanent loss of important files.
How Does POHJ Virus Infect?
Via several ways.POHJ Virus Ransomware infects computers by being sent via phishing emails, containing virus attachment. This attachment is usually masked as an important document, like an invoice, bank document or even a plane ticket and it looks very convincing to users.
Another way you may become a victim of POHJ Virus is if you download a fake installer, crack or patch from a low reputation website or if you click on a virus link. Many users report getting a ransomware infection by downloading torrents.
How to Open .POHJ Virus files?
You can't without a decryptor. At this point, the .POHJ Virus files are encrypted. You can only open them once they are decrypted using a specific decryption key for the particular algorithm.
What to Do If a Decryptor Does Not Work?
Do not panic, and backup the files. If a decryptor did not decrypt your .POHJ Virus files successfully, then do not despair, because this virus is still new.
Can I Restore ".POHJ Virus" Files?
Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .POHJ Virus files.
These methods are in no way 100% guaranteed that you will be able to get your files back. But if you have a backup, your chances of success are much greater.
How To Get Rid of POHJ Virus Virus?
The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti-malware program.
It will scan for and locate POHJ Virus ransomware and then remove it without causing any additional harm to your important .POHJ Virus files.
Can I Report Ransomware to Authorities?
In case your computer got infected with a ransomware infection, you can report it to the local Police departments. It can help authorities worldwide track and determine the perpetrators behind the virus that has infected your computer.
Below, we have prepared a list with government websites, where you can file a report in case you are a victim of a cybercrime:
Cyber-security authorities, responsible for handling ransomware attack reports in different regions all over the world:
Germany - Offizielles Portal der deutschen Polizei
United States - IC3 Internet Crime Complaint Centre
United Kingdom - Action Fraud Police
France - Ministère de l'Intérieur
Italy - Polizia Di Stato
Spain - Policía Nacional
Netherlands - Politie
Poland - Policja
Portugal - Polícia Judiciária
Greece - Cyber Crime Unit (Hellenic Police)
India - Mumbai Police - CyberCrime Investigation Cell
Australia - Australian High Tech Crime Center
Reports may be responded to in different timeframes, depending on your local authorities.
Can You Stop Ransomware from Encrypting Your Files?
Yes, you can prevent ransomware. The best way to do this is to ensure your computer system is updated with the latest security patches, use a reputable anti-malware program and firewall, backup your important files frequently, and avoid clicking on malicious links or downloading unknown files.
Can POHJ Virus Ransomware Steal Your Data?
Yes, in most cases ransomware will steal your information. It is a form of malware that steals data from a user's computer, encrypts it, and then demands a ransom in order to decrypt it.
In many cases, the malware authors or attackers will threaten to delete the data or publish it online unless the ransom is paid.
Can Ransomware Infect WiFi?
Yes, ransomware can infect WiFi networks, as malicious actors can use it to gain control of the network, steal confidential data, and lock out users. If a ransomware attack is successful, it could lead to a loss of service and/or data, and in some cases, financial losses.
Should I Pay Ransomware?
No, you should not pay ransomware extortionists. Paying them only encourages criminals and does not guarantee that the files or data will be restored. The better approach is to have a secure backup of important data and be vigilant about security in the first place.
What Happens If I Don't Pay Ransom?
If you don't pay the ransom, the hackers may still have access to your computer, data, or files and may continue to threaten to expose or delete them, or even use them to commit cybercrimes. In some cases, they may even continue to demand additional ransom payments.
Can a Ransomware Attack Be Detected?
Yes, ransomware can be detected. Anti-malware software and other advanced security tools can detect ransomware and alert the user when it is present on a machine.
It is important to stay up-to-date on the latest security measures and to keep security software updated to ensure ransomware can be detected and prevented.
Do Ransomware Criminals Get Caught?
Yes, ransomware criminals do get caught. Law enforcement agencies, such as the FBI, Interpol and others have been successful in tracking down and prosecuting ransomware criminals in the US and other countries. As ransomware threats continue to increase, so does the enforcement activity.
About the POHJ Virus Research
The content we publish on SensorsTechForum.com, this POHJ Virus how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific malware and restore your encrypted files.
How did we conduct the research on this ransomware?
Our research is based on an independent investigation. We are in contact with independent security researchers, and as such, we receive daily updates on the latest malware and ransomware definitions.
Furthermore, the research behind the POHJ Virus ransomware threat is backed with VirusTotal and the NoMoreRansom project.
To better understand the ransomware threat, please refer to the following articles which provide knowledgeable details.
As a site that has been dedicated to providing free removal instructions for ransomware and malware since 2014, SensorsTechForum’s recommendation is to only pay attention to trustworthy sources.
How to recognize trustworthy sources:
- Always check "About Us" web page.
- Profile of the content creator.
- Make sure that real people are behind the site and not fake names and profiles.
- Verify Facebook, LinkedIn and Twitter personal profiles.