How to uninstall Exorcist 2.0 ransomware from a computer?

Also Known As: Exorcist 2.0 virus
Distribution: Low
Damage level: Severe

Exorcist 2.0 ransomware removal instructions

What is Exorcist 2.0?

Exorcist 2.0 is a new variant of the Exorcist ransomware, this variant was discovered by by JAMESWT. It blocks access to files by encrypting them, changes their filenames and creates a HTA (executable file which opens a ransom note) file in all folders that contain encrypted files. Exorcist 2.0 renames files by appending a string of random characters as their new extension. For example, it renames a file named "1.jpg" to "1.jpg.vQznnv", "2.jpg" to "2.jpg.vQznnv", and so on. Additionally, this ransomware creates a key file for each encrypted file.

As explained in the ransom note, victims can decrypt files with a decryption software that can be purchased from cyber criminals behind Exorcist 2.0. Instructions on how to pay for it can be found in the provided Tor website. As written in that website, if victims will not purchase a decryption software during a particular period of time, then its price will be increased a certain number of times. The initial price of that decryption tool is $300 in Bitcoins, it can be purchased by transferring the equivalent amount of cryptocurrency to the provided BTC wallet address. As a proof Exorcist 2.0's developers the right decryption software they offer a free decryption of three files (PNG, JPG, or BMP files) that can be uploaded via the Tor website. Nevertheless, even when cyber criminals decrypt some files for free, it does not mean that they can be trusted. Quite often victims who pay a ransom get scammed - they do not receive a decryption tools. Unfortunately, there are no third party tools that could be capable of decrypting files encrypted by Exorcist 2.0, at least not at the moment. In such cases the only way to recover files for free is to restore them from a created backup. It is worthwhile to mention that possible further encryptions can be prevented by uninstalling ransomware from the operating system. However, already encrypted files remain encrypted even after its removal.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

Exorcist 2.0 decrypt instructions (pop-up window/HTA file)

There are many other ransomware-type programs, a couple of examples are Txt (Xorist), Dusk and CRPTD. Typically, they are designed to block access to data by encrypting it and create (and/or display) some ransom note. In most cases the only two main variables are size of a ransom and cryptographic algorithm (symmetric or asymmetric) that ransomware is designed to use for file encryption. Either way, it is not common that victims can decrypt their files without tools that can be provided only by cyber criminals behind certain ransomware. Usually it is possible only in cases when ransomware has some bugs, flaws, it is not finished. Unfortunately, it does not happen often and the only way to recover files without interference of cyber criminals is to use a created data backup. Therefore, it is recommended to always have files backed up and keep them stored on some remote server or unplugged storage device.

How did ransomware infect my computer?

Quite often cyber criminals distribute malware by using malspam campaigns (emails). In such cases they send emails that have malicious files attached to them. If opened, those attachments install malicious software. Examples of files that cyber criminals attach to their emails are Microsoft Office, PDF documents, archive files like RAR, ZIP, executable files (like .exe) and JavaScript. It is worthwhile to mention that their emails can contain web links that, if opened, start download process of some malicious file. Another way to get a computer infected with malware is through malicious programs called Trojans. There are certain Trojans that are designed cause chain infections: when installed, they download and install other software of this kind. Unreliable software download sources such as unofficial websites, freeware download websites, free file hosting pages, Peer-to-Peer networks (e.g., torrent clients, eMule and), third party downloaders, etc., can be used to proliferate malicious programs too. Users infect computers when they use them to download files and download malicious ones. When opened (executed), those files install malicious software. Fake software updaters, if used, either install malicious software instead of updates, fixes for the installed one, or they exploit bugs, flaws of outdated software that is installed on victims computer. Software 'cracking' (activation) tools can cause installation of malware too. These tools supposed to illegally activate licensed software. However, instead of doing that they can infect systems with some malicious software.

Threat Summary:
Name Exorcist 2.0 virus
Threat Type Ransomware, Crypto Virus, Files locker
Encrypted Files Extension String of random characters
Ransom Demanding Message .hta (HTA) file
Ransom Amount $300 in Bitcoins
BTC Wallet Address bc1qxrjm8d7j857gnxcp9dys0q5lptsfccllvw0grr
Symptoms Cannot open files stored on your computer, previously functional files now have a different extension (for example, my.docx.locked). A ransom demand message is displayed on your desktop. Cyber criminals demand payment of a ransom (usually in bitcoins) to unlock your files.
Additional Information This ransomware creates a key file for each encrypted file
Distribution methods Infected email attachments (macros), torrent websites, malicious ads.
Damage All files are encrypted and cannot be opened without paying a ransom. Additional password-stealing trojans and malware infections can be installed together with a ransomware infection.
Malware Removal (Windows)

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How to protect yourself from ransomware infections?

Software should be downloaded from official, trustworthy sites and via direct links. Other tools, sources (examples are mentioned in the previous paragraph) should not be used for that. Third party installers should never be used to install any software too. Operating system and installed software has to be updated with implemented functions and/or tools that are provided (designed) by official developers. Unofficial activation and/or updating tools often are designed to install malware. Also, it is not legal to activate licensed software with such tools. Attachments and/or links in irrelevant emails that were received from suspicious, unknown addresses should not be opened. It is common emails of this kind are used by cyber criminals as tools to trick recipients into install malware on their computers. It is worthwhile to mention that such emails often are disguised as important, official. Operating system should be regularly scanned for threats with a reputable and up-to-date antivirus or anti-spyware software. If your computer is already infected with Exorcist 2.0, we recommend running a scan with Malwarebytes for Windows to automatically eliminate this ransomware.

Text presented in Exorcist 2.0 ransomware's .hta file (pop-up window):

- Decrypt
All your data has been encrypted with Exorcist 2.0 Ransomware.
Do not worry: you have some hours to contact us and decrypt your data by paying a ransom.
If you don't pay in time, price will be increased. Then, if the payment is still not received, your keys will be destroyed.
To do this, install Tor Browser (here: hxxps://www.torproject.org/download/) and follow instructions on this web site: hxxp://7iulpt5i6whht6zo2r52f7vptxtjxs3vfcdxxazllikrtqpupn4epnqd.onion/
IMPORTANT: Do not modify this file, otherwise you will not be able to recover your data!

Appearance of the Tor website:

exorcist 2.0 ransomware tor website appearance

Text in this website:

Exorcist Ransomware

 

Order
If the payment isn't made until NaN-NaN-NaN NaN:NaN:NaN, decryptor price will be increased null times
What's the matter?
All your files have been encrypted with Exorcist Ransomware.

 

The only way to decrypt them back is to buy Exorcist Decryption Tool.

 

The price is 300$

 

You set path to the encrypted file or folder, it will check all encrypted files and decrypt them.

 

We accept Bitcoin (BTC) cryptocurrency.

 

To be sure we have the decryptor and it works you can use Free Decrypt and decrypt only one file for free. But the only file you can decrypt is image (PNG, JPG, BMP), maximum size 3 MB, because they are usually not valuable.

 

Instruction:

 

You need to create a crypto wallet. You can read more about crypto wallets here: hxxps://bit.ly/379vYBt
Learn how to buy cryptocurrency (Bitcoin). Some links where you can find information here:
Bitcoin: hxxps://bit.ly/38nohHM
Copy the wallet number from the address field (depending on what you have chosen) and transfer the necessary amount of cryptocurrency to it. You can read more about translations here: hxxps://bit.ly/36br2dK
After paying the ransom, your files will be decrypted and you will be able to continue your work.

 

IMPORTANT: When transferring funds, carefully check the details to avoid errors and loss of funds. Your files will be decrypted only when transferring funds to our wallet.

FREE DECRYPT (JPG, BMP, PNG)
Free decrypt file
Free decrypt file key (key file is dropped nearby)
PAYMENT
Decryptor price: 300$
Pay in Bitcoin: bc1qxrjm8d7j857gnxcp9dys0q5lptsfccllvw0grr 0.029681 BTC
When funds reach one of these addresses, you automatically get decryption tool.
Chat

Screenshot of files encrypted by Exorcist 2.0 (string of random characters appended as the new extension):

Files encrypted by Exorcist 2.0 ransomware (random extension)

Update 30 September 2020 - It is known that cyber criminals now distribute Exorcist 2.0 ransomware through an untrustworthy website which contains download links for various software 'cracking' tools that supposed to activate licensed software for free. One of the tools used to distribute Exorcist 2.0 is the "Windows 10 Activator 2020" which supposed to activate Windows 10. Users are offered to download an archive file which contains password-protected ZIP archive file ("Setup.zip") and a text file that contains the password that supposedly can be used to extract archive's contents. Although, instead of extracting files that archive file ("Setup.zip") encrypts files stored on victim's computer.

Screenshot of the download page for various 'cracking' tools:

exorcist 2.0 ransomware download page for malicious cracking tool

Screenshot of the files that supposed to launch "Windows 10 Activator 2020":

exorcist 2.0 ransomware installer for exorcist 2.0 which is disguised as windows cracking tool

Exorcist 2.0 ransomware removal:

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Reporting ransomware to authorities:

If you are a victim of a ransomware attack we recommend reporting this incident to authorities. By providing information to law enforcement agencies you will help track cyber crime and potentially assist in prosecution of the attackers. Here's a list of authorities where you should report a ransomware attack. For the complete list of local cyber security centers and information on why you should report ransomware attacks, read this article.

List of local authorities where ransomware attacks should be reported (choose one depending on your residence address):

Isolating the infected device:

Some ransomware-type infections are designed to encrypt files within external storage devices, infect them, and even spread throughout the entire local network. For this reason, it is very important to isolate the infected device (computer) as soon as possible.

Step 1: Disconnect from the internet.

The easiest way to disconnect a computer from the internet is to unplug the Ethernet cable from the motherboard, however, some devices are connected via a wireless network and for some users (especially those who are not particularly tech-savvy), disconnecting cables may seem troublesome. Therefore, you can also disconnect the system manually via Control Panel:

Navigate to the "Control Panel", click the search bar in the upper-right corner of the screen, enter "Network and Sharing Center" and select search result: Disconnecting computer from the Internet (step 1)

Click the "Change adapter settings" option in the upper-left corner of the window: Disconnecting computer from the Internet (step 2)

Right-click on each connection point and select "Disable". Once disabled, the system will no longer be connected to the internet. To re-enable the connection points, simply right-click again and select "Enable". Disconnecting computer from the Internet (step 3)

Step 2: Unplug all storage devices.

As mentioned above, ransomware might encrypt data and infiltrate all storage devices that are connected to the computer. For this reason, all external storage devices (flash drives, portable hard drives, etc.) should be disconnected immediately, however, we strongly advise you to eject each device before disconnecting to prevent data corruption:

Navigate to "My Computer", right-click on each connected device and select "Eject": Ejecting external storage devices

Step 3: Log-out of cloud storage accounts.

Some ransomware-type might be able to hijack software that handles data stored within "the Cloud". Therefore, the data could be corrupted/encrypted. For this reason, you should log-out of all cloud storage accounts within browsers and other related software. You should also consider temporarily uninstalling the cloud-management software until the infection is completely removed.

Identify the ransomware infection:

To properly handle an infection, one must first identify it. Some ransomware infections use ransom-demand messages as an introduction (see the WALDO ransomware text file below).

Identify ransomware-type infection (step 1)

This, however, is rare. In most cases, ransomware infections deliver more direct messages simply stating that data is encrypted and that victims must pay some sort of ransom. Note that ransomware-type infections typically generate messages with different file names (for example, "_readme.txt", "READ-ME.txt", "DECRYPTION_INSTRUCTIONS.txt", "DECRYPT_FILES.html", etc.). Therefore, using the name of a ransom message may seem like a good way to identify the infection. The problem is that most of these names are generic and some infections use the same names, even though the delivered messages are different and the infections themselves are unrelated. Therefore, using the message filename alone can be ineffective and even lead to permanent data loss (for example, by attempting to decrypt data using tools designed for different ransomware infections, users are likely to end up permanently damaging files and decryption will no longer be possible even with the correct tool).

Another way to identify a ransomware infection is to check the file extension, which is appended to each encrypted file. Ransomware infections are often named by the extensions they append (see files encrypted by Qewe ransomware below).

Identify ransomware-type infection (step 2)

This method is only effective, however, when the appended extension is unique - many ransomware infections append a generic extension (for example, ".encrypted", ".enc", ".crypted", ".locked", etc.). In these cases, identifying ransomware by its appended extension becomes impossible.

One of the easiest and quickest ways to identify a ransomware infection is to use the ID Ransomware website. This service supports most existing ransomware infections. Victims simply upload a ransom message and/or one encrypted file (we advise you to upload both if possible).

Identify ransomware-type infection (step 3)

The ransomware will be identified within seconds and you will be provided with various details, such as the name of the malware family to which the infection belongs, whether it is decryptable, and so on.

Example 1 (Qewe [Stop/Djvu] ransomware):

Identify ransomware-type infection (step 4)

Example 2 (.iso [Phobos] ransomware):

Identify ransomware-type infection (step 5)

If your data happens to be encrypted by a ransomware that is not supported by ID Ransomware, you can always try searching the internet by using certain keywords (for example, ransom message title, file extension, provided contact emails, cryptowallet addresses, etc.).

Search for ransomware decryption tools:

Encryption algorithms used by most ransomware-type infections are extremely sophisticated and, if the encryption is performed properly, only the developer is capable of restoring data. This is because decryption requires a specific key, which is generated during the encryption. Restoring data without the key is impossible. In most cases, cyber criminals store keys on a remote server, rather than using the infected machine as a host. Dharma (CrySis), Phobos, and other families of high-end ransomware infections are virtually flawless, and thus restoring data encrypted without the developers' involvement is simply impossible. Despite this, there are dozens of ransomware-type infections that are poorly developed and contain a number of flaws (for example, the use of identical encryption/decryption keys for each victim, keys stored locally, etc.). Therefore, always check for available decryption tools for any ransomware that infiltrates your computer.

Finding the correct decryption tool on the internet can be very frustrating. For this reason, we recommend that you use the No More Ransom Project and this is where identifying the ransomware infection is useful. The No More Ransom Project website contains a "Decryption Tools" section with a search bar. Enter the name of the identified ransomware, and all available decryptors (if there are any) will be listed.

Searching for ransomware decryption tools in nomoreransom.org website

Restore files with data recovery tools:

Depending on the situation (quality of ransomware infection, type of encryption algorithm used, etc.), restoring data with certain third-party tools might be possible. Therefore, we advise you to use Recuva tool developed by CCleaner. This tool supports over a thousand data types (graphics, video, audio, documents, etc.) and it is very intuitive (little knowledge is necessary to recover data). In addition, the recovery feature is completely free.

Step 1: Perform a scan.

Run the Recuva application and follow the wizard. You will be prompted with several windows allowing you to choose what file types to look for, which locations should be scanned, etc. All you need to do is select the options you're looking for and start the scan. We advise you to enable the "Deep Scan" before starting, otherwise the application's scanning capabilities will be restricted.

Recuva data recovery tool wizard

Wait for Recuva to complete the scan. The scanning duration depends on the volume of files (both in quantity and size) that you are scanning (for example, several hundreds gigabytes could take over an hour to scan). Therefore, be patient during the scanning process. We also advise against modifying or deleting existing files, since this might interfere with the scan. If you add additional data (for example, downloading files/content) while scanning, this will prolong the process:

Recuva data recovery tool scan time

Step 2: Recover data.

Once the process is complete, select the folders/files you wish to restore and simply click "Recover". Note that some free space on your storage drive is necessary to restore data:

Recuva data recovery tool recovering data

Create data backups:

Proper file management and creating backups is essential for data security. Therefore, always be very careful and think ahead.

Partition management: We recommend that you store your data in multiple partitions and avoid storing important files within the partition that contains the entire operating system. If you fall into a situation whereby you cannot boot the system and are forced to format the disk on which the operating system is installed (in most cases, this is where malware infections hide), you will lose all data stored within that drive. This is the advantage of having multiple partitions: if you have the entire storage device assigned to a single partition, you will be forced to delete everything, however, creating multiple partitions and allocating the data properly allows you to prevent such problems. You can easily format a single partition without affecting the others - therefore, one will be cleaned and the others will remain untouched, and your data will be saved. Managing partitions is quite simple and you can find all necessary information on Microsoft's documentation web page.

Data backups: One of the most reliable backup methods is to use an external storage device and keep it unplugged. Copy your data to an external hard drive, flash (thumb) drive, SSD, HDD, or any other storage device, unplug it and store it in a dry place away from sun and extreme temperatures. This method is, however, quite inefficient, since data backups and updates need to be made regularly. You can also use a cloud service or remote server. Here, an internet connection is required and there is always the chance of a security breach, although it's a really rare occasion.

We recommend using Microsoft OneDrive for backing up your files. OneDrive lets you store your personal files and data in the cloud, sync files across computers and mobile devices, allowing you to access and edit your files from all of your Windows devices. OneDrive lets you save, share and preview files, access download history, move, delete, and rename files, as well as create new folders, and much more.

You can back up your most important folders and files on your PC (your Desktop, Documents, and Pictures folders). Some of OneDrive’s more notable features include file versioning, which keeps older versions of files for up to 30 days. OneDrive features a recycling bin in which all of your deleted files are stored for a limited time. Deleted files are not counted as part of the user’s allocation.

The service is built using HTML5 technologies and allows you to upload files up to 300 MB via drag and drop into the web browser or up to 10 GB via the OneDrive desktop application. With OneDrive, you can download entire folders as a single ZIP file with up to 10,000 files, although it can’t exceed 15 GB per single download.

OneDrive comes with 5 GB of free storage out of the box, with additional 100 GB, 1 TB, and 6 TB storage options available for a subscription-based fee. You can get one of these storage plans by either purchasing additional storage separately or with Office 365 subscription.

Creating a data backup:

The backup process is the same for all file types and folders. Here’s how you can back up your files using Microsoft OneDrive

Step 1: Choose the files/folders you want to backup.

Click the OneDrive icon in the taskbar

Click the OneDrive cloud icon to open the OneDrive menu. While in this menu, you can customize your file backup settings.

Select Help & Settings and click Settings

Click Help & Settings and then select Settings from the drop-down menu.

Select the Backup tab and click Manage backup

Go to the Backup tab and click Manage backup.

Select folders to backup and click Start backup

In this menu, you can choose to backup the Desktop and all of the file on it, and Documents and Pictures folders, again, with all of the files in them. Click Start backup.

Now, when you add a file or folder in the Desktop and Documents and Pictures folders, they will be automatically backed up on OneDrive.

To add folders and files not in the locations shown above, you have to add them manually.

Select a file manually and copy it

Open File Explorer and navigate to the location of the folder/file you want to backup. Select the item, right-click it, and click Copy.

Paste the copied file in the OneDrive folder to create a backup

Then, navigate to OneDrive, right-click anywhere in the window and click Paste. Alternatively, you can just drag and drop a file into OneDrive. OneDrive will automatically create a backup of the folder/file.

File statuses in OneDrive folder

All of the files added to the OneDrive folder are backed up in the cloud automatically. The green circle with the checkmark in it indicates that the file is available both locally and on OneDrive, and that the file version is the same on both. The blue cloud icon indicates that the file has not been synced and is available on only on OneDrive. The sync icon indicates that the file is currently syncing.

Click Help & Settings and click View Online

To access files only located on OneDrive online, go to the Help & Settings drop-down menu and select View online.

Click the Settings cog and click Options

Step 2: Restore corrupted files.

OneDrive makes sure that the files stay in sync, so the version of the file on the computer is the same version on the cloud. However, if ransomware has encrypted your files, you can take advantage of OneDrive’s Version history feature that will allow you to restore the file versions prior to encryption.

Microsoft 365 has a ransomware detection feature that notifies you when your OneDrive files have been attacked and guides you through the process of restoring your files. It must be noted, however, that if you don’t have a paid Microsoft 365 subscription, you only get one detection and file recovery for free.

If your OneDrive files get deleted, corrupted, or infected by malware, you can restore your entire OneDrive to a previous state. Here’s how you can restore your entire OneDrive:

restore-your-onedrive

1. If you're signed in with a personal account, click the Settings cog at the top of the page. Then, click Options and select Restore your OneDrive.

If you're signed in with a work or school account,  click the Settings cog at the top of the page. Then, click Restore your OneDrive.

2. On the Restore your OneDrive page, select a date from the drop-down list. Note that if you're restoring your files after automatic ransomware detection, a restore date will be selected for you.

3. After configuring all of the file restoration options, click Restore to undo all the activities you selected.

The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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