How to remove Arrow virus and restore encrypted files

If you fell a victim of a ransomware and have reasons to suppose that it is the Arrow virus – in our article you will receive help. We propose plain and effective advice about Arrow uninstalling and potential methods to get back the spoiled data.

What is Arrow ransomware

Ransomware can be considered a bogey of a modern society, and every user knows that if you can't access the data and you see a ransom note – it’s time to worry. It is a right reaction, unfortunately. Arrow threat is the most dangerous threat that you might meet in the Net since a regular user has no resources to delete it. The exclusive case when you can overcome ransomware is when you’re not facing a true one, but an imitation, that covers your display and tries to deceive you into making a payment. In any other event, if ransomware was developed and protected in a right way – you can just hope that ransomware fighters can beat it. If web-criminals failed somehow, and there are some drawbacks, which let you to get back files – you'll find an answer in the following guide.



So, what is ransomware? It is driven by a completely legal coding system which encrypts the data on customer’s workstation and makes them useless without a key. The key is also encoded with another algorithm. In most cases, these manners are AES and RSA, which have proven themselves the most complex and reliable. The mentioned methods and the programs based on them can be easily found on the Internet, so web-criminals just have to create protective mechanisms, to block an access to a program, and create the flawless update and control system. Some pieces of ransomware can function in standalone mode, and web-criminals know of a new victim only when he turns to them and forwards his funds. The complex viruses are highly active, and transmit reports to hundreds addresses, to confuse the researchers and maximize the time needed to beat a ransomware.

Bypassing the ransomware’s sort, the AES and RSA algorithms are too tricky difficult to bruteforce them. It it requires centuries to perform all required operations on a standard device or, maybe, 3-4 decades in case of usage of a mega-powerful computer. There are two effective ways to defeat a ransomware: to find vulnerabilities in its code, or hack its server, to get encryption keys. Some ransomware examples also have a breaker, allowing to cease virus' activity in full or to drive it off the infected computer. If some parson discovers that breaker for Arrow, or make a decryptor, we'll give you full information in this guide.


Here we've gathered some things to inspect, until you can yield and look for a decryption software. As it is stated in previous paragraphs, Internet-criminals make failures, and some peculiarities of your OS might help you to get back the lost files.


  • A protected copy is the single 100% productive manner to get your data back, but you have to get rid of Arrow prior to it. Ensure that the ransomware is deleted entirely, since if it’s not – all info will be spoiled again, with those that are on a flash drive.
  • If you do not use the Windows from an admin account – you're really fortunate. The matter is that your OS duplicates all files until they’re destroyed or altered. Suchlike copies are known as the SVC, and Arrow has the manners to erase them. If you are using the user's entry – the operating system asks for a permission at the very moment Arrow goes to delete SVC. In case you saw such confirmation and ignored it – your SVC are safe, and might be used to get back the data.


In case you revised both these things and you have no possibility to restore the files – you better uninstall the virus from your device and wait until a decryption program will be developed.

How to remove Arrow

As for the removal – you can't entirely escape an automatic mode. The virus is very sly and there is a chance miss some elements and then suffer from it (it could happen if you connect a flash data storage with your saved data to a not-completely-purged system). It knows how to hide very good, and you literally won’t be able to remove it fully with your own hands. Knowing this, we’ve developed a solid deletion specification which will suit all your needs. It contains several by-hand steps and an extra anti-viral tool stage.

Removal instruction

If you are MAC user, follow this guide: how to decrypt files on MAC.




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

We suggest you to test Spyhunter anti-viral software that is not just efficient, but also swift and continuously evolving software which is able to clean your PC of all suspicious programs. Press the button under this paragraph to try Spyhunter and uninstall Arrow.


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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

How to restore files

If you removed the virus, you should try to do some info restoration. As you know now, if you logged in from an administrator profile and you permitted Arrow a pass to the device – there is no manner to restore the files except for the previously saved copies. If you haven’t done this – you have feeble chances for file recovery, but it needs peculiar recovery program. We advise you to try ShadowExplorer and Recuva tools. They're easy to get on their official websites, with close instructions.

  • Click Start
  • Click Control Panel

Decrypt files. Step 1


  • Click System and Security

Decrypt files. Step 2


  • Select Backup and Restore

Decrypt files. Step 3


  • Select Restore files from backup
  • Select checkpoint to restore


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