How to protect systems from being infected with Viagra ransomware

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

Viagra ransomware removal instructions

What is Viagra?

Like most ransomware-type programs, Viagra is designed to encrypt files (it encrypts them using AES-256 and RSA-4096 encryption algorithms) and deny access to them unless a ransom is paid. It also creates HTML file named "README-VIAGRA-E3m7Zwvk.HTML" which contains instructions on how to decrypt files. The "E3m7Zwvk" string in the name of a ransom note might be different. Also, Viagra changes extension (filename) of every encrypted file, for example, it renames "1.jpg" to ".1.jpg.uwUkwUbvsWJR9sP+TVp9cw==E3m7" and so on. The appended extension is a string of random characters. Filenames of files stored on other computers that are infected with Viagra might be changed with a different random string of characters.

After encryption Viagra ransomware logs victims out from operating system accounts. On the next victim's attempt to log in it displays a notification stating that all files are encrypted and encourages to look for the HTML file for instructions on how to decrypt encrypted data. This file supposed to be placed in every folder that contains encrypted data. Viagra changes victim's desktop wallpaper, according to the ransom note on a wallpaper, all files are encrypted using the encryption algorithms that we mentioned in the introduction and it is impossible to 'crack' them. All further information is provided in the HTML file. As stated in this file, tools like Recuva or Shadow Copies will not help victims to recover their files and the only way to do it is to pay a ransom of 0.4 BTC (Bitcoin) that should be transferred to the provided wallet address. After the payment victims supposed to contact Viagra developer (or developers) by writing an email to one of the provided addresses, victims must attach the HTML file to it, use "Decryption" as the subject and copy the ID that can be found at the bottom of the ransom note. According to cyber criminals, they will provide further instructions after email is sent. Victims are encouraged to pay the ransom in one and a half months from the date of encryption, after that the price of a decryption will be increased by 50%. It is also stated that after three months decryption will become impossible. It is very likely that Viagra developers are the only ones who can help victims to decrypt their files. In other words, most ransomware-type programs perform encryptions that are impossible to decrypt without the tools that only cyber criminals who designed the ransomware have. Unfortunately, it is not safe to trust cyber criminals and pay them a ransom. Quite often they do not keep their promises and do not send decryption tools or/and keys even if victims pay them a ransom. Typically, the only (and free) way to recover files without having to contact and/or pay cyber criminals is to restore them from a created backup.

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

viagra ransomware login screen

Most malicious programs that are categorized as ransomware are quite similar, other examples are NEMTY PROJECT, Masodas, Vesrato. Typically, they have two main things in common: they encrypt files and display/create ransom notes. The two main differences usually are the size of a ransom and cryptographic algorithm that is used to lock the files. Either way, very often performed encryptions are impossible to decrypt without the right tools that only cyber criminals can provide, unless ransomware is not finished (has bugs, flaws). In order to avoid data and/or financial caused by this type of malware it is recommended to always have data backed up and store in on a remote server (like Cloud) or unplugged storage device.

How did ransomware infect my computer?

Typically, ransomware (and other malware) developers proliferate malicious software through emails (spam campaigns), fake software updating tools, unreliable software download sources, trojans and software activation ('cracking') tools. They use spam campaigns to spread malicious programs through files that they attach to emails. These attachments usually are Microsoft Office documents, PDF files, archives like RAR, ZIP, executable files (like .exe), JavaScript files, etc. Computers get infected with malware when people download and open these malicious files. Another way to get a computer infected with malicious software is through fake software updaters. These tools usually are designed to exploit bugs, flaws of installed outdated software, or to download malware instead of the updates, fixes and so on. Various Peer-to-Peer networks (like eMule, torrent clients), third party downloaders, installers, freeware download and free file hosting websites, and other sources of this type can be used to spread malware too. Cyber criminals use them to disguise infected files as legitimate ones. People who download and execute files downloaded from unreliable sources often cause installations of malicious programs by themselves. Trojans, if installed, spread other malicious programs. Simply said, there are many trojans that are designed to cause chain infections. Unofficial software activation ('cracking') tools supposed to activate paid software for free. However, these tools often are designed to spread malware, in other words, to install malicious programs instead of activating licensed programs.

Threat Summary:
Name Viagra virus
Threat Type Ransomware, Crypto Virus, Files locker
Encrypted Files Extension .uwUkwUbvsWJR9sP+TVp9cw==E3m7 (it might differ)
Ransom Demanding Message README-VIAGRA-E3m7Zwvk.HTML (filename of this file might differ)
Ransom Amount 0.4 of Bitcoin
Bitcoin Wallet Address 1Bqca3tn3Yco6SftgHeyYQUxqb2MPtwFBj
Cyber Criminal Contact youngthug412, hparrockneverstop
Detection Names (dotnetfx35setup.exe) Avast (Win32:Malware-gen), BitDefender (Generic.Ransom.Spora.6EC2E0B1), ESET-NOD32 (A Variant Of MSIL/Filecoder.UG), Kaspersky (HEUR:Trojan.MSIL.DelShad.gen), Full List Of Detections (VirusTotal)
Rogue Process Name File Encryption Utility
Symptoms Can't open files stored on your computer, previously functional files now have a different extension, for example my.docx.locked. A ransom demanding message is displayed on your desktop. Cyber criminals are asking to pay a ransom (usually in bitcoins) to unlock your files.
Additional Information This ransomware logs out victim from the operating system and displays a note when an attempt to log in is made.
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.
Removal

To eliminate Viagra virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

How to protect yourself from ransomware infections?

We strongly recommend not to open files (attachments) or click links that are presented in irrelevant emails, especially when they are received from unknown, suspicious addresses. Software should be downloaded from official sources (websites) and using direct download links. Various third party downloaders and installers or any other tools that we mentioned above should not be trusted. Sources of this kind are often used to proliferate malware. Another important thing is to keep software up to date, however, this should be achieved using implemented functions or tools that are designed by official developers. If installed program is not free, it should not be activated with some third party tool. 'Cracking' tools are not legal and often lead to installations of malicious programs like ransomware. Installed operating system should be regularly scanned with a reputable anti-virus or anti-spyware suite and all detected threats must always be removed as soon as possible. If your computer is already infected with Viagra, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Screenshot of the HTML file (ransom note):

viagra ransomware ransom note in html file

Text presented in this HTML file:

YOU BECAME VICTIM OF THE VIAGRA RANSOMWARE!
What happened to my files?
Your files were encrypted with AES-256 and RSA-4096. This combination is cryptographically secure and cannot be cracked. There are no flaws in the encryption method. Tools like Recuva, or Shadow Copies will fail as soon as they are launched. But, your hope is not to lose. Every file with the ".E3m7" extension was encrypted (you can verify by yourself that, just, go into your user profile folders, for example, or, into your connected drives).

How do I decrypt my files?
To decrypt your files, you will need to pay a certain amount of money to us, in an anonymous manner.
First step, is to create an Bitcoin account (if you don't have one), use the following URL:
Crypto Runner guide.
InvestoPedia guide.
Send a payment to the following BitCoin address of 0.4 BTC ~ 403.60 USD, and keep the transaction / payment ID:
1Bqca3tn3Yco6SftgHeyYQUxqb2MPtwFBj

After, contact one of the following e-mail addresses present below. If you do not get a reply from one, send to the other one, until you get a reply (this happens in less than 24 hours, in normal conditions); check also your spam folder. Use your real E-mail address, and use the subject "Decryption"; add as attached file this HTML document, and add to the body the payment ID. We do not give decryption for test service, so, don't request for free decryption on the e-mail. We will tell the rest of istructions after the e-mail was sent.
Do what you're told. Don't try to swear on us, or we will block you and your ID forever. Don't try to fool us into using 10MinuteMail or similar services,
use them for later.
E-mail addresses:
First address ("youngthug412")
First address ("hparrockneverstop")
After decryption, your E-mail address and your ID will be wiped off our servers, don't fear for your life.

Is there a time limit?
Yes, three months from now (day, month, year; 22 Aug 2019, 09:11:35). Date was added to the ID, and is not removable from it (will make us ignore you forever). Be quick to pay, after 1,5 months from now, the price will be raised of the 50%, and, after three months, your ID will be blocked, that will happen also to your real e-mail address.

-- N*gga livin life like vulcano and this only the beginnin' --
ID: -

Screenshot of Viagra's desktop wallpaper:

Viagra wallpaper

Text presented within this image:

Your files are encrypted.
Your files were encrypted with a AES-256 \ RSA-4096 combination. The combination is cryptographically secure and cannot be cracked. There are no flaws in the encryption method, and original file contents were wiped forever.

To recover your files and return to normal, please, look for the files with viagra in their filenames, and, look for their contents, there will be instructions.
Do it as fast as possible, time will not stand still.

Screenshot of files encrypted by Viagra (extension is a string of random characters):

Files encrypted by Viagra

Malicious Viagra process in Task Manager ("File Encryption Utility"):

viagra process in task manager File Encryption Utility

Viagra ransomware removal:

Instant automatic removal of Viagra 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 Viagra 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 Viagra 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 Viagra 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 Viagra 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 Viagra 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 Viagra, 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 Viagra ransomware.

Note that Windows 10 Fall Creators Update includes "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default this feature automatically protects files stored in 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's more information on how to get this update and add 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 Viagra ransomware:

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 virus and spyware activity level today:

Medium threat activity
Medium

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

QR Code
Viagra virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Viagra virus on your mobile device.
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Platform: Windows

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