.Calum File Virus (Phobos) – Removal + File Recovery

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.Calum Files Virus is another newly found variant of Phobos ransomware infection. It is a nasty file encrypting malware which is able to infect any Windows PC. It is a descendant of infamous Phobos virus which means hackers behind this threat knows all the tricks to spread this infection really fast. It has started rolling very recently and we have found that infection is really dangerous. This nasty .Calum Ransomware virus is able to encrypt all types of computer files and then add .Calum extension to mark them as locked. This nasty virus is also known as .[backcompanyfiles@protonmail.com].Calum Ransomware because backcompanyfiles@protonmail.com is the email address through which you can contact the hackers for decrypting your files.

.calum file virus

.Calum Files Virus : Threat Summary

 Name .Calum Ransomware, .Calum file virus, .Calum extension virus
 Type Ransomware, Cryptovirus
 Extension .Calum
 Family Phobos Ransomware
 Description .Calum Ransomware encrypt your files by adding .Calum extension to file names and demands a ransom to give decryption key
 Symptoms You will not be able to access any files on your system. You will find Ransom note in each folder demanding money.
 Distribution  Spam Emails, Email Attachments, bundled freeware, porn or torrent sites
 Detection Tool Calum Download SpyHunter 5 Anti-Malware
 Data Recovery  Calum Download Data Recovery Tool 

.Calum Ransom virus is a harassing virus infection that force users to pay the ransom for accessing their own files. It has only motive to make more and more money by cheating innocent users. It claims to give you the decryption key once you pay the ransom amount but it is highly doubtful. Since there is no reason to trust .[backcompanyfiles@protonmail.com].Calum Ransomware virus we strongly advise our reader not pay any dime to hackers. It is not sure that hackers will give you decryption key or that key will even work. Once your files are encrypted by .Calum extension everything seems sketchy and doubtful. As many of the victims of other Phobos variants like .Adage and .Acute claim that don’t get their files back even after paying the money makes it more dangerous to trust this threat. Well you check the screen short of this nasty malware infection below :

.calum file virus

.Calum Virus Ransomware is a very nasty and harmful computer malware. It is a deceptive PC threat that mainly wants to force you to pay the ransom fees. It is created by evil minded hackers who only wants to make illegal profit online. .Calum Ransomware can intrude any Windows based computer very easily. This dubious threat will show no mercy and lock down all your files stored on your system. Once done with encryption, will leave ransom note on your system to explain about the attack and to give instruction about how to pay ransom money to get the decryption key. This nasty .Calum File Extension virus will show error message whenever you will try to open any of your files. It will force your pay ransom fees to unlock your data.

.[backcompanyfiles@protonmail.com].Calum Ransomware mostly intrude your PC through spam emails, suspicious links, spam emails, porn or torrent websites and shareware. Once installed, it will mess with your PC and make it completely useless. It will ask you that all your files are locked with a powerful encryption algorithm. It will ask that there is only one method to unlock your files and you have to buy decryption key for that. .[backcompanyfiles@protonmail.com].Calum Ransomware will give you some time to pay the ransom money through BitCoin. It also mention that if you fail to pay money before deadline then it will delete all your files completely. Many users get tricked by this virus and didn’t got their data even after paying ransom money. You should not risk your financial details because hackers and steal your banking information. You are advised to remove .Calum Virus completely from your system and recover your files through data recovery software.

How To Remove .Calum Virus From PC

If your PC is infected by .Calum File Virus infection then it is really a critical situation. If don’t remove this threat quickly from your system, then it could lead to various harmful effects. This nasty malware can alter your system settings, expose your personal data, steal your financial details and corrupt your entire system. This guide offers tow type of removal process to remove this infection 1. Automatic Removal 2. Manual Removal. Manual removal of this threat could be quite risky and time taking. It is also not sure that manual removal method is effective enough to completely remove this infection. In most of the cases, some left over files of the malware can bring the infection on the compromised machine. Threats like .Calum Virus Files also spread its copies on the infected PC with different names which could be hard to detect without knowing the malicious code type. In such case if you can’t remove those duplicate malware files, then malware will keep doing its dirty work in the background. So we suggest our readers to use a powerful Anti-Malware Software to detect and remove .Calum virus and all hidden threats from the system.

Automatically Remove .Calum File Virus 

If you are looking for a quick, permanent and safe way to remove .Calum Ransomware infection from your system then you should use a powerful Automatic Malware Scanner to detect and remove all the files, hidden programs, registry keys, shortcuts etc. associated to this infection and remove all at once. We suggest one of the most trusted and best anti-malware application for the removal of this threat in this guide which comes highly recommended and performs up to the reputation. It is quick, effective, very easy to use and the virus database is regularly updated to fight against nay kind of malware outbreak like .Calum Virus. Best of all, you don’t need any kind of special technical expertise to use this application and it offers free detection services. You just have to download the Automatic Malware Removal Tool and it will do the rest for you. It is a completely safe and fully automated software that can detect and remove .Calum File Virus and all the other harmful and malicious threats from your system like Trojan, viruses, keylogger, malware, scam pop-up, rootkits, spyware, Ransomware, worms and many others.

Calum Download Automatic .Calum File Virus Removal Tool

Amazing Features Of Automatic Malware Scanner

Malware Detection & Removal – Detect and remove spyware, rootkits, ransomware, viruses, browser hijackers, adware, keyloggers, trojans, worms and other types of malware.

Custom Scan – This feature gives you freedom to scan any part of your system particularly to find hidden threats including external hard drives or USB drives.

Real Time Protection – Advanced system guard feature has malware blocking technology which helps protect your PC against malware attacks, threats and other objects.

Technical Support – It is one of the best feature that provide ’24×7′ technical help to the users of custom malware fixes, specific to unique malware problems.

Regular Malware Definition Updates – Daily malware definition updates ensure complete protection of your PC and and help you protect your system from the latest malware threats or any latest malware outbreak.

Note : Removing .Calum File Virus manually needs proper knowledge of system settings and programs. If make a little mistake in the manual process and delete wrong files, you might end up killing your system. So you are advised to use Automatic Malware Scanner to identify hidden threats and malware.

How To Recover Encrypted Files

If you don’t have any recent backup of your files, then you can use professional data recovery software to recovery your files. ParetoLogic Data Recovery Pro software is a highly advanced and powerful data recovery suite. It can recover lost or permanently delete files. You should try the free version of this software to scan your PC. If the software can detect your files, then you will need to pay the recover all your files. But in this case you are not paying ransom money hackers. The Malware Removal Tool and Data Recovery are much more cheaper option than paying ransom money.

  • First you need to download the Data Recovery Pro Software.

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  • After installing the software launch the program and click on Start Scan to run full scan of your PC.

Recover file encrypted by Calum

  • When software detect all your files, then click on Recover button to get your files back.

Recover file encrypted by Calum

Manually Remove Calum Virus

(Important NOTE – Please Bookmark This Page before starting the manual removal process because you might need to restart your PC or browser during the process.)

Attention! For the safety of your computer, before you start to remove .Calum Ransomware manually, please confirm the following points:

1. You have good technical knowledge and experience for removing virus manually;

2. You know all the functions of your system process and its applications;

3. You are familiar with Registry entry and know the severe consequence of any mistake;

4. You are able to reverse the wrong operations during .Calum Virus manual removal.

If you do not fulfill the above criteria then manual removal could be a risky. It is probably best if you to choose Automatic Malware Removal Tool to detect and remove .Calum File Virus automatically which is completely safely and professional way doing it.

Part 1 – Start PC In Safe Mode With Networking

  • Press “Windows Key + R” buttons together on your keyboard.


  • Run box will appear, type “msconfig” and hit enter button.


  • System configuration box will appear on your screen.


  • Go to boot tab and select Safe boot then hit enter button.


Part 2 – Kill Malicious Process From Task Manager

  • Press “Windows Key + R” buttons together on your keyboard.


  • Run box will appear, type “taskmgr” and hit enter button to open Task manager.


  • Find malicious process related to .Calum File Virus and right click on it then click End process.

Block .Calum File Virus in Task Manager

Part 3 – Remove .Calum File Virus From Control Panel

First you should check the Control Panel of your computer and remove any unwanted program that you have not installed by yourself. It might be possible that .Calum File Virus virus is listed in Control Panel with any other random name to avoid its removal.

Remove .Calum File Virus From Windows Vista/7

  • Click on Start menu and select Control Panel.


  • Select Uninstall a program option under Programs menu.


  • Find and remove .Calum File Virus and other malicious programs.

Remove .Calum File Virus From Windows 7

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Remove .Calum File Virus From Windows 8/10

  • Click “Windows + R” button together to open run box.


  • Type Control Panel in the Run Box then click OK.


  • Select Uninstall a program option under Programs menu.


  • Find and remove .Calum File Virus or other related harmful programs.

Remove .Calum File Virus From Windows 10

Part 4 – Remove .Calum File Virus From Browser

Remove From Google Chrome

  • Open Chrome browser > Click on Menu > select More Tools > Choose Extensions.
  • Find and remove .Calum File Virus related malicious extension from chrome.

Remove .Calum File Virus From Chrome

Remove From Mozilla Firefox

  • Open Mozilla Firefox > Click on Menu > select Add-ons.
  • Find and remove .Calum Virus related malicious add-ons from Firefox.

Remove .Calum File Virus From Firefox

Remove From MS Edge

  • Open Edge browser > Click on More option > select settings > Choose Extensions.
  • Click on .Calum Virus related unwanted extension and hit uninstall button.

Remove .Calum File Virus From Edge

Remove From Internet Explorer

  • Open Internet Explorer > Click on Gear icon > choose Manage Add-ons.
  • Click on .Calum Virus related unwanted extension and press disable button.

Remove .Calum File Virus From Internet Explorer

Part 5 – Remove .Calum File Virus From Registry Editor

  • Press “Windows Key + R” buttons together on your keyboard.


  • Run box will appear, type “regedit” and hit enter button.


  • Windows Registry editor will appear on your screen.


  • Find and remove .Calum File Virus related keys.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msmpeng.exe “Debugger” = ‘svchost.exe’

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe “Debugger” = ‘svchost.exe’


HKEY_LOCAL_MACHINE\SOFTWARE\Uninstall\”virus name”

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “WarnOnHTTPSToHTTPRedirect” = ’0′

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “xas”

HKEY_CURRENT_USER\Software\.Calum File Virus

Tips To Prevent Malware Like .Calum File Virus In Future

  • You should use a powerful and reliable anti-virus program and scan your computer regularly.
  • Check Windows Firewall security and turn it on for the real time safety form malware and viruses.
  • You must avoid visiting to malicious, porn and torrent websites to stay safe online.
  • Avoid downloading any free or unknown program from any unreliable website or link.
  • Say a big No to download cracked software, themes and wallpaper, screensaver similar products.
  • Do not click on any misleading advertisement that flash on your browser when you go online.
  • Keep your Windows OS and other software up to date to avoid vulnerabilities.
  • Download updates and software patches only from official and trusted websites.
  • Always create a system restore point when you PC is running fine for security purpose.
  • Keep backup of all your important files and data to avoid any kind of data loss situation.

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