Djvu VirusRansomwareRemoval Guide

Paas Virus Removal Guide (+Decrypt .paas files)

Paas – General Info

Paas is a destructive software application functioning as typical ransomware. Michael Gillespie, the well-known malware researcher, very first found this new name in the DJVU ransomware family.

Paas was created for the sole purpose to encrypt all popular file types. Rationally, as soon as the encryption is effectively achieved, the users are unable to get access to them. Paas ransomware includes its own “.paas” to all the encrypted data. For example, the file “price_list.xls”, when crypted by Paas, will be titled as “price_list.xls.paas”. As soon as the file encryption is accomplished, Paas puts its own unique text document (_readme.txt) into all the folders that store the encrypted files.

The alert mentioned by _readme.txt asking for the random os really comparable to the notices provided by other ransomware threats coming from the DJVU family. The caution basically indicates that the information has been encrypted and the only solution to get access to it is to use an unique standalone key. Regretfully, this declaration is definitely real.

The technique to secure the files utilized by Paas is not completely researched. However, there is no doubt that each computer system owner may be issued an unique decryption key, which is definitely unique. It is very difficult to recuperate the data without the appropriate key in location.

“Don’t worry, you can return all your files!”, from _readme.txt message:

message from Paas virus

One more peculiarity of the Paas ransomware is that the users are not able to get access to the key. The decrypting key is hosted on a special server under the total control by the scoundrels who have actually introduced the Paas infection into the web. In order to obtain the key and bring back the essential information, the users are told to contact the frauds via email or by telegram and to pay the ransom in the amount of $980.

The message also states that individuals must contact the Paas authors within 72 hours upon the minute of the information encryption. The alert suggests that by doing so the people will obtain a 50% discount rate, for that reason, the ransom quantity falls to $490.

No matter what the amount of the ransom is, we strongly encourage that you do not pay the ransom. There is no guarantee that these online scoundrels will keep their guarantees, so they might not care at all what the victims feel about the file encryption, even when the amount of the ransom is gotten into their accounts. Hence, paying ransom typically does not result in a successful recovery. So, the users might simply lose their money for absolutely nothing.

Likewise, we prompt you not to call the frauds as they advise. Do not transfer loan into their wallets. There are no applications that could crack the Paas virus or bring back the data at no cost. For that reason, the only appropriate choice is to restore the data from possible backups (if offered).

Virus Summary

NamePaas Ransomware
File Extensionpaas
TypeRansomware
FamilyDJVU
Short DescriptionThe ransomware encrypts all the data stored on your system and requires a ransom to be paid on your part supposedly to recover your important files.
SymptomsFile encryption by the ransomware is performed by means of the AES-256 algorithm (CFB mode) encryption algorithm. Once the encryption is completed, the ransomware adds its special .paas extension to all the files modified by it.
Distribution MethodAdware bundles and software cracks
Similar InfectionsLokas, Besub, Nusar
Paas Removal Tool   GridinSoft Anti-Malware
Paas Decryption Tool   Emsisoft Djvu Decryptor

Do not forget that the Internet is now filled with infections similar to the Paas ransomware. For example, this specific risk is generally similar to Brusaf and other ransomware-type infections. These harmful utilities have actually been developed in order to encrypt the essential information and reveal the need for the users to pay the ransom. All these infections utilize the similar algorithm to produce the particular key for successful information decryption.

Unless the Paas ransomware is still under the advancement process or has actually got some concealed bugs, it is not possible to restore the data manually. Hence, the only working solution to avoid the loss of your crucial information is to regularly preserve current backups of all your important files.

Another crucial piece of advice is to save the backups on special storage not connected to your primary PC. For example, you may store it on the USB Flash Drive, or some external drive, or by using the cloud data storage services. Keeping the backups on your routine drive is really risky, given that the backup may likewise be secured by the Paas ransomware.

Leaks for the Paas ransomware attack.

Paas utilizes many courses to penetrate the susceptible computers. It is not certain what specific approach was utilized in your case, however, the intrusion might occur through the following channels:

  • bundling with third-party programs, generally freeware;
  • spam emails from the unidentified senders;
  • sites offering free hosting;
  • P2P (peer-to-peer) torrent downloads.

There are times when the Paas ransomware might camouflage itself as some genuine application, for example, through the misleading informs demanding setup of some software application update. This is the most typical technique used by the frauds to inject the Paas ransomware files into the system. This way users partially participate in its setup, without plainly comprehending the threat.

Additionally, the scams might send out unsolicited spam e-mail with tricky signals encouraging the people to open suspicious accessories or click some download links, for example, those encouraging the people to open specific photos, text files, tax files and other information.

No doubt, opening these files or clicking the destructive links might essentially damage the system. Fake Acrobat Reader update notices may result in the Paas ransomware infiltration. Likewise, downloading the broken software application may in addition contain the ransomware installer. The last but not the least, setup of Paas may occur through some Trojan horses that might be installed stealthily into the system and without the user’s direct authorization or perhaps authorization.

Avoiding the Paas attack.

Of course, there is no outright guarantee that your computer will be always devoid of any malware attacks, nevertheless, we wish to share some helpful pointers with you to make it more secure. Ensure to pay very very close attention while searching the web and especially while downloading cost-free programs. Do not open any dubious e-mail accessories, specifically if the sender is not understood to you.

Do not forget that specific freeware installer might also include some other extra apps in the bundle. These additional applications may be very damaging. It is of utmost value to keep your anti-virus software application and your os in general to be constantly properly upgraded.

It is rather rational that downloading cracked apps is prohibited, however, additionally, such unauthorized apps usage may also bring major damage to your computer. Thus, do not download any broken programs. Plus, the truth that your current anti-virus did not protect the system from the Paas ransomware is a good reason for you to reassess your choices and change to another program that can render the protecting functions on a far better level.

Below please find the quotation from the Paas text file:

ATTENTION!
 
 Don't worry, you can return all your files!
 All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key.
 The only method of recovering files is to purchase decrypt tool and unique key for you.
 This software will decrypt all your encrypted files.
 What guarantees you have?
 You can send one of your encrypted file from your PC and we decrypt it for free.
 But we can decrypt only 1 file for free. File must not contain valuable information.
 You can get and look video overview decrypt tool:
 https://we.tl/t-2P5WrE5b9f
 Price of private key and decrypt software is $980.
 Discount 50% available if you contact us first 72 hours, that's price for you is $490.
 Please note that you'll never restore your data without payment.
 Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours.
  
  
 To get this software you need write on our e-mail:
 restorealldata@firemail.cc
  
 Reserve e-mail address to contact us:
 gorentos@bitmessage.ch 

 Our Telegram account:
 @datarestore

Screenshot of files with “.paas” extension added by the virus:”

Paas Ransomware - encrypt files with .paas extension

Use GridinSoft Anti-Malware to remove Paas ransomware from your computer

1.Download GridinSoft Anti-Malware.

You can get GridinSoft Anti-Malware by clicking the button below:

  GridinSoft Anti-Malware

2. Double-click on the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-ag.exe file to install GridinSoft Anti-Malware on your computer.
GridinSoft Anti-Malware
An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.
GridinSoft Anti-Malware Setup

3. Press Install button for run GridinSoft Anti-Malware.

GridinSoft Anti-Malware Install

3.Once installed, GridinSoft Anti-Malware will automatically run.

GridinSoft Anti-Malware  Start

4. Wait for the GridinSoft Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your computer for Win Speedup 2018 and other malicious programs. This process can take a 20-30 minutes, so we suggest you periodically check on the status of the scan process.
GridinSoft Anti-Malware Scan

5. Click on “Clean Now”.

When the scan has completed, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.
GridinSoft Anti-Malware Scan Result

Use Emsisoft Decryptor for restore paas files

You can download Emsisoft Decryptor by clicking the button below:

  Emsisoft Decryptor

  1. Run the decryptor as an administrator. The license terms will show up, which you have to agree to by clicking the “Yes” button.
  2. Once the license terms are accepted, the primary decryptor user interface opens.
  3. By default, the decryptor will pre-populate the locations to decrypt with the currently connected drives and network drives. Additional locations can be added using the Add” button.
  4. Decryptors typically offer various options depending on the particular malware family. The available options are located in the Options tab and can be enabled or disabled there. You can find a detailed list of the available Options below.
  5. After you have added all the locations you want to decrypt to the list, click the “Decrypt” button to start the decryption process. The screen will switch to a status view, informing you about the current process and decryption status of your files
  6. The decryptor will inform you once the decryption process is finished. If you require the report for your personal records, you can save it by clicking the “Save log” button. You can also copy it straight to your clipboard to paste it into emails or forum posts if you are asked to.
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Daniel Zimmermann

Daniel Zimmermann has been writing on security and malware subjects for many years and has been working in the security industry for over 10 years. Daniel was educated at the Saarland University in Saarbrücken, Germany and currently lives in New York.

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One Comment

  1. Hi Daniel .. After all these steps, I still could not decrypt the files. I encounter the following error.

    Error: No key for New Variant online ID: mrKbuVzpE7JBOQfsGoT7TF4DqFcCmJQf8kPwppGH
    Notice: this ID appears to be an online ID, decryption is impossible

    Is there another solution?

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