.pptx Ransomware

Also Known As: pptx virus
Distribution: Low
Damage level: Severe

.pptx ransomware removal instructions

What is .pptx?

.pptx is one of many ransomware-type viruses that is designed to infect computers and lock/encrypt stored files. The virus belongs to the GlobeImposter ransomware family and changes the extension of all encrypted files by adding ".PPTX". For example, "sample.jpg" becomes "sample.jpg.PPTX", "1.jpg" becomes "1.jpg.PPTX", and so on. It also creates a "READ_ME.txt" text file and places a copy in every folder that contains encrypted files.

The "READ_ME.txt" text file contains a ransom-demand message that informs .pptx victims that all files are encrypted and, to decrypt them, they must purchase a 'decryptor' by downloading a Tor browser and opening the link provided. As stated in the text file, the link can be opened only using the Tor browser. Furthermore, .pptx ransomware developers offer victims free decryption of one or two files as a 'guarantee' that they can be trusted. The cost of decryption of all other files is .122 Bitcoin (currently equivalent to around $780 USD), however, if the payment is not made within two days following encryption, the cost is doubled (.244 Bitcoin). Despite these threats and demands, do not trust any cyber criminals. Research shows that most ignore victims even if ransom payments are made. Paying cyber criminals delivers no positive results and people are scammed. Unfortunately, there are no tools capable of cracking .pptx encryption and restoring data free of charge. Therefore, the only way to restore files free of charge is to use an existing backup and restore everything from there.

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

powerpoint There are many ransomware-type viruses that are very similar to .pptx. Some examples are DataWait, XUY, and Adobe. Most ransomware viruses are very similar - they encrypt data and make ransom demands. Two possible differences might be size of ransom and type of encryption algorithm used. These viruses often employ algorithms that generate unique decryption keys (e.g., AES, RSA, and similar). Thus, manual decryption without involvement of ransomware developers (not recommended) is virtually impossible unless the virus is still in development or contains bugs/flaws. To prevent data loss, we recommend that you maintain regular backups and store them on an unplugged storage device or remote server.

How did ransomware infect my computer?

The method used to proliferate .pptx is currently unknown, however, cyber criminals usually proliferate viruses of this type though spam email campaigns, trojan viruses, fake software updaters, peer-to-peer networks, and other unofficial software download sources. Spam campaigns are used to proliferate viruses such as .pptx via malicious email attachments. These are usually presented as Microsoft Office documents, archive files (such as RAR), PDF files, executables, and so on. Once opened, these attachments download and install malware and infect the operating system. Trojans are infections that proliferate other infections, thus causing chain infections. Fake software updaters usually infect systems by downloading malicious software rather than the updates or by exploiting outdated software bugs/flaws. Peer-to-peer (P2P) networks such as torrents, eMule, and various third party download sources (such as free file hosting, freeware download websites, and so on) are used to present malicious executables as legitimate software. Cyber criminals use these channels to trick people into downloading and installing viruses.

How to protect yourself from ransomware infections?

The key to safety is caution. Pay attention when browsing the web, downloading, installing and updating software to avoid computer infections. We recommend that you download software from official and trustworthy sources only, and using direct links. Avoid using third party sources (downloaders and installers), since they are often used to proliferate rogue applications. It is also important to keep software updated, however, update it using implemented tools or functions that are provided by official software developers only. Tools such as third party software updaters should not be used. Do not open email attachments without carefully studying them first. Do not open attachments that are presented in emails received from unknown/suspicious addresses. Finally, use reputable anti-virus/anti-spyware software to prevent computer infection by viruses. If your computer is already infected with .pptx, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in .pptx ransomware text file:

Your files are Encrypted!
For data recovery needs decryptor.
How to buy decryptor:

1. Download "Tor Browser" from https://www.torproject.org/ and install it.

2. Open this link In the "Tor Browser"

http://huhighwfn4jihtlz.onion/sdlsgdewwbhr

Note! This link is available via "Tor Browser" only.

------------------------------------------------------------
Free decryption as guarantee.
Before paying you can send us 2 file for free decryption.
------------------------------------------------------------
You unique ID

Screenshot of the website required to purchase a decryptor:

powerpoint-website

Text presented in the website required to purchase a decryptor:

Buy Decryptor

 

To buy the decryptor, you must pay the cost of: 0.122 Bitcoin ($ 777)
You have 2 days for payment
time left :

 

after finishing offer, decryptor cost will be 0.244 Bitcoin

 

You can buy bitcoin on one of these sites:
blockchain.info
localbitcoins.com
google.com
send 0.122 bicoin on the Bitcoin address: 3Q99zEkCQW35qakHdu35ukaUmWeqpMNNNx
after payment click HERE
Free decryption as guarantee.
Before paying you can send us 1 file for free decryption.
click HERE

Screenshot of files encrypted by .pptx (".PPTX" extension):

powerpoint-folder

.pptx ransomware removal:

Instant automatic removal of pptx virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of pptx virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the .pptx virus. Start your Internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the .pptx ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining .pptx ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of .pptx are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by .pptx, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as .pptx ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove .pptx ransomware: