THREAT REMOVAL

Remove RotorCrypt Virus – Restore .AlfaBlock Files

RotorCrypt virus image ransomware note .AlfaBlock  extension

Hackers have created a new strain of the RotorCrypt virus which encrypts user data with the .AlfaBlock extension. The ongoing attack uses several methods to spread the ransomware and users all around the world are targeted.Our article provides an overview of the virus operations and it also may be helpful in attempting to remove the virus.

Threat Summary

Name RotorCrypt virus
Type Ransomware, Cryptovirus
Short Description The ransomware encrypts sensitive information on your computer system with the .AlfaBlock extension and demands a ransom to be paid to allegedly recover them.
Symptoms The ransomware will encrypt your files with a strong encryption algorithm.
Distribution Method Spam Emails, Email Attachments
Detection Tool See If Your System Has Been Affected by malware

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User Experience Join Our Forum to Discuss RotorCrypt virus.
Data Recovery Tool Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.

RotorCrypt virus – Distribution Ways

RotorCrypt virus samples can be distributed using various techniques. Commonly the hackers behind the active campaign will utilize several different mechanisms at once in order to increase the number of affected files.

A popular technique is the creation and coordination of SPAM email messages containing social engineering elements. They coerce the victims into retrieving and interacting with the malicious files or scripts that lead to the RotorCrypt virus infection.

The other similar method is to design fake web sites that feature hijacked elements and may utilize similar sounding domain names to the legitimate portals. These two methods are among the main tactics for spreading infected payloads. There are two main types which are most commonly used to distribute ransomware:

  • Documents — RotorCrypt virus samples can be distributed via scripts that are embedded in document files of various types: spreadsheets, presentations, rich text files or databases. When they are opened by the victim users a notification prompt will appear asking them to enable the built-in content. This will trigger a payload download action that will retrieve the virus sample from a remote server and start its execution.
  • Application Installers — The criminals can also embed the dangerous threats in fake installers of popular software. They can range from system utilities to productivity apps and well-known creativity suites. Most commonly they are made by taking the legitimate files from the official vendor download sites and modifying them with the virus code.

Other distribution tactics make use of malicious scripts that may have different forms: pop-ups, banners, redirects, hyperlinks and etc. The RotorCrypt infected files can be spread over file sharing networks as requested. A popular choice is BitTorrent which is a channel for spreading both illegal and pirate content. In many cases when downloading movies, programs or other assets from such trackers virus infections can follow.

Advanced infections can utilize browser hijackers, they represent malicious plugins made for the most popular web browsers. The ready-made samples are uploaded to the relevant plugin repositories using fake developer credentials and user reviews. They are called “hijackers” because of their ability to modify the web browser settings. Their end goal is to redirect the users to a hacker-controlled site by modifying the default home page, search engine and new tabs page. Once this is done the virus file will be downloaded and the infection will be triggered.

RotorCrypt virus – In-Depth Analysis

The RotorCrypt virus and its ransomware family as a whole is well-known for having a modular base. Threats belonging to it can be adapted to each individual attack campaign. We anticipate that the ongoing infiltration attempts will result in the execution of a common behavior pattern.

The infections can begin with a data harvesting component that can hijack information that can be of interest to the operators. One of the groups of data includes user information which can expose the victims identity. This is done by programming the associated engine into retrieving values such as the following: the users name, address, phone number, interests, location and any stored account credentials. The other group of data that can be harvested by the RotorCrypt data harvesting module is related to campaign metrics. This includes user settings, operating system values and a report on the installed hardware components.

Following this the extracted strings can be used to scan for the presence of applications or services that can block the virus or remove it. The stealth protection evades this process by scanning for anti-virus programs, sandbox environments and virtual machine hosts and blocks their engines. In certain cases it can even delete them completely. When this action is complete the RotorCrypt virus will have unlimited access to hook up to any system process, elevate its privileges and conduct other malicious actions.

If configured so the engine can proceed with Windows Registry changes. They can lower overall performance and stop certain functions from working properly. This step is also connected with another malicious action called persistent installation. It installs the RotorCrypt virus in such a way that it will automatically start every time the computer is powered on. During RotorCrypt’s startup other services and applications may be blocked from starting and in most cases this will also make it impossible to enter into the recovery menu. The consequences of this is that the victim users will not be able to follow most manual removal instructions. In these cases the only way to effectively restore the computers is to resort to a professional-grade anti-spyware solution.

Some Rotorcrypt virus samples can be configured into deleting System Restore and Shadow Volume Copies data. Effective restore of the affected files can be done with a specialist utility, refer to our instructions for more information.

Advanced copies can lead to a Trojan module installation — the infected hosts will connect to a hacker-controlled server. By using a secure connection the controllers can take over control of the infected hosts, spy on the users and deploy additional threats.

RotorCrypt virus — Encryption

Like the previous attacks the ongoing RotorCrypt virus campaigns use the classic scheme of processing target data via a built-in list of target file type extensions. An example one can include any of the following:

  • Archives
  • Backups
  • Documents
  • Images
  • Videos
  • Music

Once the victim are encrypted with a strong algorithm they will be renamed with the .AlfaBlock extension. The captured samples indicate that a long name extension has been used: “!@#$_(decryp in the EMail)____nautilus369alarm@gmail.com____$#@..AlfaBlock”. This shows that the ransomware operators are placing their contact email address in more than one location. Classic ransomware places an elaborate message in the accompanying ransomware note. The fact that this RotorCrypt virus is infecting files with explicit contact email shows that alternative measures can also be taken.

Remove RotorCrypt Ransomware Virus and Restore .AlfaBlock Files

If your computer got infected with the RotorCrypt ransomware virus, you should have a bit of experience in removing malware. You should get rid of this ransomware as quickly as possible before it can have the chance to spread further and infect other computers. You should remove the ransomware and follow the step-by-step instructions guide provided below.

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Martin Beltov

Martin graduated with a degree in Publishing from Sofia University. As a cyber security enthusiast he enjoys writing about the latest threats and mechanisms of intrusion.

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Attention! SensorsTechForum strongly recommends that all malware victims should look for assistance only by reputable sources. Many guides out there claim to offer free recovery and decryption for files encrypted by ransomware viruses. Be advised that some of them may only be after your money.

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.


OFFER

REMOVE IT NOW (PC)
with Anti-Malware
We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
SpyHunter 5 free remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy


Windows Mac OS X

How to Remove RotorCrypt virus from Windows.


Step 1: Boot Your PC In Safe Mode to isolate and remove RotorCrypt 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 RotorCrypt 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 RotorCrypt 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 RotorCrypt 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 RotorCrypt 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.

Step 5 (Optional): Try to Restore Files Encrypted by RotorCrypt virus.

Ransomware infections and RotorCrypt 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.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


Windows Mac OS X

Get rid of RotorCrypt virus from Mac OS X.


Step 1: Uninstall RotorCrypt 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 RotorCrypt 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 RotorCrypt 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 RotorCrypt 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 RotorCrypt 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 RotorCrypt 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.


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


Download

SpyHunter for Mac



Step 3 (Optional): Try to Restore Files Encrypted by RotorCrypt virus.

Ransomware infections and RotorCrypt 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.

1. Download the reccomended Data Recovery software by clicking on the link underneath:

Simply click on the link and on the website menus on top, choose Data Recovery - Data Recovery Wizard for Windows or Mac (depending on your OS), and then download and run the tool.


RotorCrypt virus FAQ

What is RotorCrypt virus ransomware and how does it work?

RotorCrypt 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 algorithm how 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.

How does RotorCrypt virus ransomware infect my computer?

Via several ways.RotorCrypt virus Ransomware infects computers by being sent via phishing e-mails, 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.

After you download and execute this attachment, a drive-by download occurs and your computer is infected with the ransomware virus.

Another way, you may become a victim of RotorCrypt 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 .RotorCrypt virus files?

You can't. At this point the .RotorCrypt virus files are encrypted. You can only open them once they are decrypted.

Decryptor did not decrypt my data. What now?

Do not panic and backup the files. If a decryptor did not decrypt your .RotorCrypt virus files successfully, then do not despair, because this virus is still new.

One way to restore files, encrypted by RotorCrypt virus ransomware is to use a decryptor for it. But since it's a new virus, advised that the decryption keys for it may not be out yet and available to the public. We will update this article and keep you posted as soon as this decryptor is released.

How Do I restore ".RotorCrypt virus" files (Other Methods)?

Yes, sometimes files can be restored. We have suggested several file recovery methods that could work if you want to restore .RotorCrypt virus files.

These methods are in no way 100% guarantee that you will be able to get your files back. But if you have a backup, your chances of success are much greater.

How do I get rid of RotorCrypt virus ransomware virus?

The safest way and the most efficient one for the removal of this ransomware infection is the use a professional anti malware software. It will scan for and locate RotorCrypt virus ransomware and then remove it without causing any additional harm to your important .RotorCrypt virus files.

Also, keep in mind that viruses like RotorCrypt virus ransomware also install Trojans and keyloggers that can steal your passwords and accounts. Scanning your computer with an anti-malware software will make sure that all of these virus components are removed and your computer is protected in the future.

What to Do If nothing works?

There is still a lot you can do. If none of the above methods seem to work for you, then try these methods:

  • Try to find a safe computer from where you can can login on your own line accounts like One Drive, iDrive, Google Drive and so on.
  • Try to contact your friends, relatives and other people so that they can check if they have some of your important photos or documents just in case you sent them.
  • Also, check if some of the files that were encrypted it can be re-downloaded from the web.
  • Another clever way to get back some of your files is to find another old computer, a flash drive or even a CD or a DVD where you may have saved your older documents. You might be surprised what will turn up.
  • You can also go to your email account to check if you can send any attachments to other people. Usually what is sent the email is saved on your account and you can re-download it. But most importantly, make sure that this is done from a safe computer and make sure to remove the virus first.

More tips you can find on our forums, where you can also asks any questions about your ransomware problem.

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