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Rook Virus [.rook Files] Removal & Recovery Guide

What Is Rook Virus?

Rook Virus

Rook virus it’s a ransom ware type of infection that may affect Windows computers. This virus has one purpose only and that is to encrypt your important files and use them as a hostage, banning you from opening them. The malware adds a .Rook file extension to the files that are encrypted and changes the course structure, which makes them seem corrupt. It then leaves behind a ransom note file called HowToRestoreYourFiles.txt. This note contains instructions on how you can visit our website where you can buy Bitcoin and then pay the ransom amount in the cryptocurrency.

Read this article if you want to learn more about how this virus functions and how you can remove it and try to reverse the outcome of the encryption process.

Rook Virus Summary

Name Rook virus, also known as Win64:Malware-gen, Generic.Ransom.Babuk.A.0FFC53E6, Ransom.Win64.Gen.sa, Trojan.Win32.DelShad.hfh, Trojan:Win32/Sabsik.FL.B!ml – VirusTotal
File Extension .Rook
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 Robm Virus ransomware will encrypt your files by appending the .robm extension to them.
Ransom Demanding Note HowToRestoreYourFiles.txt
Distribution Method Spam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

Download

Malware Removal Tool

Rook Virus – Main Activity

Rook virus is a typical crypto virus infection. Malware like it, often use different means to end up on your machine. One of them is to get infected if you have open some type of an email attachment, that may appear as if it is an important document, such as:

  • Invoices.
  • E-Tickets for events or flights.
  • Work-related files.
  • Receipts.

But also, like in the case of other ransomware viruses, such as NEEH,Rigj and Huylock, virus may also infect you by using some type of a file that you may have download it from a shady website. Usually these files and they’re being some type of executables, like the following ones:

  • Fake installation files.
  • Software patches.
  • Self extracting archives or regular archives.
  • Cracked portable versions of apps.
  • Software or game cracks.
  • Key generator (or Keygen).

Once already have an infected your computer system, this ransomware may drop files in the typically targeted Windows system directories:

  • %AppData%
  • %Local%
  • %Temp%
  • %System%
  • %system32%
  • %Windows%
  • %SystemDrive%
  • %LocalLow%

Among the files that are dropped is also the ransom note of the virus, that carries the following extortion is the message:

———–Welcome. Again. ——————–
[+]Whats Happen?[+]

Your files are encrypted,and currently unavailable. You can check it: all files on you computer has expansion robet.

By the way,everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER).

[+] What guarantees?[+]

Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities – nobody will not cooperate with us. Its not in our interests.

To check the file capacity, please send 3 files not larger than 1M to us, and we will prove that we are capable of restoring.

If you will not cooperate with our service – for us, its does not matter. But you will lose your time and data,cause just we have the private key. In practise – time is much more valuable than money.

If we find that a security vendor or law enforcement agency pretends to be you to negotiate with us, we will directly destroy the private key and no longer provide you with decryption services.

You have 3 days to contact us for negotiation. Within 3 days, we will provide a 50% discount. If the discount service is not provided for more than 3 days, the files will be leaked to our onion network. Every more than 3 days will increase the number of leaked files.

Please use the company email to contact us, otherwise we will not reply.

[+] How to get access on website?[+]

You have two ways:

1) [Recommended] Using a TOR browser!
a) Download and install TOR browser from this site:hxxps://torproject.org/
b) Open our website:gamol6n6p2p4c3ad7gxmx3ur7wwdwlywebo2azv3vv5qlmjmole2zbyd.onion

2) Our mail box:
a)rook@onionmail.org
b)securityRook@onionmail.org
c)If the mailbox fails or is taken over, please open Onion Network to check the new mailbox
———————————-
!!!DANGER!!!
DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions – its may entail damge of the private key and, as result, The Loss all data.
!!!!!!!

AGAIN: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, please should not interfere.
!!!!!!!

ONE MORE TIME: Security vendors and law enforcement agencies, please be aware that attacks on us will make us even stronger.

!!!!!!!

But the virus does not stop with its activity here. It may also temper with the registry settings of windows adding values in the following sub-keys:

  • 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

.Rook Files

The main purpose of the virus is to enter your computer while you not notice it and use a sophisticated algorithm to encrypt your files. The main files, affected by this are often the following kinds:

  • Audio file formats (.mp3, .wav, etc.).
  • Pictures (.jpg, .png, .etc).
  • Video file types (.mp4, .avi, etc.).
  • Archives (.zip, .rar, etc).
  • Document file kinds (.docx, .pptx, etc.).
  • Other types of often used data.

After it has finished the encryption process, the virus leaves the files appearing, like the example below shows:

Picture.jpg.Rook

Keep reading this article to learn more about how you can remove this virus and try to restore your files.

Remove Rook Virus and Try to Restore Files

If you want to get rid of Rook virus, then we would strongly suggest following the removal guy underneath this article. It has been created with the main purpose to contain the steps that are necessary to find the malicious files in combination with the information provided in this article and remove them. If you like the experience of doing that or just want the first in automatic solution, then we suggest that you follow same advice as experts would give you and that is to download and run a scan of your computer using an advanced anti-malware software. Such a program has been created with the main idea to perform an automatic scan and delete any malicious file from your computer.

If you want to restore the files back to their normal working state, then we suggest that you look for a free decryption online. Often researchers post free decryptors for different cryptoviruses and we will update the article as soon as we find any information as well. In the meantime, we have created some alternative steps that you can try to restore your files, posted underneath.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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About the Rook virus Research

The content we publish on SensorsTechForum.com, this Rook 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, adware-related problem, and restore your browser and computer system.

How did we conduct the research on Rook virus?

Please note that our research is based on independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware, adware, and browser hijacker definitions.
Furthermore, the research behind the Rook virus threat is backed with VirusTotal https://www.virustotal.com/gui/home/upload.
To better understand this online threat, please refer to the following articles which provide knowledgeable details.

References

1.Browser Redirect – What Is It?
2.Adware Is Malicious, and It Uses Advanced Techniques to Infect
3.The Thin Red Line Between Potentially Unwanted Programs and Malware
4.The Pay-Per-Install Affiliate Business – Making Millions out of Adware
5.Malicious Firefox Extensions Installed by 455,000 Users Blocked Updates

How to Remove Rook virus from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove Rook virus

OFFER

Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter

Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria

1. Hold Windows key + R


2. The "Run" Window will appear. In it, type "msconfig" and click OK.


3. Go to the "Boot" tab. There select "Safe Boot" and then click "Apply" and "OK".
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.


4. When prompted, click on "Restart" to go into Safe Mode.


5. You can recognise Safe Mode by the words written on the corners of your screen.


Step 2: Uninstall Rook virus and related software 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:


1. Hold the Windows Logo Button and "R" on your keyboard. A Pop-up window will appear.


2. In the field type in "appwiz.cpl" and press ENTER.


3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press "Uninstall"
Follow the instructions above and you will successfully uninstall most programs.


Step 3: Clean any registries, created by Rook 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 Rook virus there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.


2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.


3. You can remove the value of the virus by right-clicking on it and removing it.

Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

IMPORTANT!
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: Scan for Rook virus with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.


It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.


2. After you have installed SpyHunter, wait for it to update automatically.

SpyHunter5-update-2018


3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

SpyHunter5-Free-Scan-2018


4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

SpyHunter-5-Free-Scan-Next-2018

If any threats have been removed, it is highly recommended to restart your PC.


Video Removal Guide for Rook virus (Windows).


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Get rid of Rook virus from Mac OS X.


Step 1: Uninstall Rook virus and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy

1.Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3.In the Activity Monitor look for any suspicious processes, belonging or related to Rook virus:

Tip: To quit a process completely, choose the “Force Quit” option.


4.Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5.In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Rook virus. If you find it, right-click on the app and select “Move to Trash”.


6: Select Accounts, after which click on the Login Items preference.

Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Rook virus. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7: Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove Rook virus via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1: Click on "Go" and Then "Go to Folder" as shown underneath:

2: Type in "/Library/LauchAgents/" and click Ok:

3: Delete all of the virus files that have similar or the same name as Rook virus. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Scan for and remove Rook virus files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as Rook virus, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Click the button below below to download SpyHunter for Mac and scan for Rook virus:


Download

SpyHunter for Mac


Video Removal Guide for Rook virus (Mac)


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups


Remove Rook virus from Google Chrome.


Step 1: Start Google Chrome and open the drop menu


Step 2:Move the cursor over "Tools" and then from the extended menu choose "Extensions"


Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.


Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups


Erase Rook virus from Mozilla Firefox.

Step 1: Start Mozilla Firefox. Open the menu window


Step 2: Select the "Add-ons" icon from the menu.


Step 3: Select the unwanted extension and click "Remove"


Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.



Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups


Uninstall Rook virus from Microsoft Edge.


Step 1: Start Edge browser.


Step 2: Open the drop menu by clicking on the icon at the top right corner.


Step 3: From the drop menu select "Extensions".


Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.


Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.



Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups


Remove Rook virus from Safari.


Step 1: Start the Safari app.


Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.


Step 3: From the menu, click on "Preferences".

stf-safari preferences


Step 4: After that, select the 'Extensions' Tab.

stf-safari-extensions


Step 5: Click once on the extension you want to remove.


Step 6: Click 'Uninstall'.

stf-safari uninstall

A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Rook virus will be removed.


How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.


Windows Mac OS X Google Chrome Mozilla Firefox Microsoft Edge Safari Internet Explorer Stop Push Pop-ups


Eliminate Rook virus from Internet Explorer.


Step 1: Start Internet Explorer.


Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'


Step 3: In the 'Manage Add-ons' window.


Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.


Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.


Remove Push Notifications caused by Rook virus from Your Browsers.


Turn Off Push Notifications from Google Chrome

To disable any Push Notices from Google Chrome browser, please follow the steps below:

Step 1: Go to Settings in Chrome.

settings

Step 2: In Settings, select “Advanced Settings”:

advanced settings

Step 3: Click “Content Settings”:

Content Settings

Step 4: Open “Notifications”:

notifications

Step 5: Click the three dots and choose Block, Edit or Remove options:

Block, Edit or Remove

Remove Push Notifications on Firefox

Step 1: Go to Firefox Options.

options

Step 2: Go to “Settings”, type “notifications” in the search bar and click "Settings":

Settings

Step 3: Click “Remove” on any site you wish notifications gone and click “Save Changes”

remove push notifications firefox

Stop Push Notifications on Opera

Step 1: In Opera, press ALT+P to go to Settings.

opera

Step 2: In Setting search, type “Content” to go to Content Settings.

content settings

Step 3: Open Notifications:

notifications

Step 4: Do the same as you did with Google Chrome (explained below):

three dots

Eliminate Push Notifications on Safari

Step 1: Open Safari Preferences.

preferences

Step 2: Choose the domain from where you like push pop-ups gone and change to "Deny" from "Allow".



Rook virus FAQ

What is Rook virus?

The Rook virus threat is adware or browser redirect virus. It may slow your computer down siginficantly and display advertisements. The main idea is for your information to likely get stolen or more ads to appear on your device.

The creators of such unwanted apps work with pay-per-click schemes to get your computer to visit risky or different types of websites that may generate them funds. This is why they do not even care what types of websites show up on the ads. This makes their unwanted software indirectly risky for your OS.

What are the symptoms of Rook virus?

There are several symptoms to look for when this particular threat and also unwanted apps in general are active:

Symptom #1: Your computer may become slow and has poor performance in general.

Symtpom #2: You have toolbars, add-ons or extensions on your web browsers that you don't remember adding.

Symptom #3: You see all types of ads, like ad-supported search results, pop-ups and redirects to randomly appear.

Symptom #4: You see installed apps on your Mac running automatically and you do not remember installing them.

Symptom #5: You see suspicious processes running in your Task Manager.

If you see one or more of those symptoms, then security experts reccomend that you check your computer for viruses.

What types of Unwanted Programs are there?

According to most malware researchers and cyber-security experts, the threats that can currently affect your Mac can be the following types:

  • Rogue Antivirus programs.
  • Adware.
  • Browser hijackers.
  • Clickers.
  • Fake optimizers.

What to do if I have a "virus" like Rook virus?

Do not panic! You can easily get rid of most adware or unwanted program threats by firstly isolating them and then removing them from your browser and computer. One reccomended way to do that is by using a reputable malware removal software that can take care of the removal automatically for you. There are many anti-malware apps out there that you can choose from. SpyHunter is one of the reccomended anti-malware apps, that can scan your computer for free and detect any viruses, tracking cookies and unwanted adware apps and eliminate them quickly. This saves time when compared to doing the removal manually.

How to secure my passwords and other data from Rook virus?

With few simple actions. First and foremost, it is imperative that you follow these steps:

Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.

Step 2: Change all of your passwords, starting from your e-mail passwords.

Step 3: Enable two-factor authentication for protection of your important accounts.

Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activiites with your card.

Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.

Step 6: Change your Wi-Fi password.

Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.

Step 8: Install anti-malware software with real-time protection on every device you have.

Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.

If you follow these reccomendations, your network and all devices will become significantly more secure against any threats or information invasive software and be virus free and protected in the future too.

More tips you can find on our website, where you can also ask any questions and comment underneath the articles about your computer problems. We will try to respond as fast as possible.

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