How to protect systems from infection 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 (in this case, using AES-256 and RSA-4096 encryption algorithms) and deny access to them unless a ransom is paid. It also creates an HTML file named "README-VIAGRA-E3m7Zwvk.HTML", which contains instructions about how to decrypt files. Note that the "E3m7Zwvk" string within the filename of the ransom text file might differ. Also, Viagra changes the filename extension of each encrypted file. For example, "1.jpg" might be renamed to a filename such as ".1.jpg.uwUkwUbvsWJR9sP+TVp9cw==E3m7". The appended extension is a string of random characters. Filenames of files stored on other computers infected with Viagra might be changed with a different random string of characters.

After encryption, Viagra ransomware logs victims out of operating system accounts. On the next attempt to log in, it displays a notification stating that all files are encrypted and encourages the victim to look for the HTML file for instructions about how to decrypt data. This file is supposedly placed in each folder that contains encrypted data. Viagra also changes the victim's desktop wallpaper. According to the ransom message on the wallpaper, all files are encrypted using encryption algorithms (mentioned above) and it is impossible to 'crack' them. All further information is provided within the HTML file. The message within this file states that tools such as Recuva or Shadow Copies will not help victims to recover their files, and the only way to do so is to pay a ransom of 0.4 BTC (Bitcoin), which should be transferred to the wallet address provided. After payment, victims are encouraged to contact Viagra developers by sending an email to one of the addresses provided. They must attach the HTML file, use "Decryption" as the subject, and copy the ID, which can be found at the foot of the ransom message. According to these cyber criminals, they will provide further instructions after the email is sent. Victims are encouraged to pay the ransom within 1.5 months of date of encryption. After that, the cost of decryption increases by 50%. It is also stated that after three months decryption becomes impossible. It is likely that only Viagra developers can decrypt the files. Most ransomware-type programs perform encryptions that are impossible to decrypt without tools held only by the cyber criminals who designed the ransomware. Note that it is not safe to trust cyber criminals or pay any ransoms. They generally do not keep their promises or send any decryption tools/keys, even if victims pay the ransoms. Typically, the only free way to recover files without contacting or paying cyber criminals is to restore them from a backup created prior to the infection.

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

viagra ransomware login screen

Many malicious programs categorized as ransomware are similar. Other examples are NEMTY PROJECT, Masodas, and Vesrato. Typically, they have two main features in common: they encrypt files and generate ransom messages. Main differences are usually size of ransom and cryptographic algorithm used to lock the files. In any case, encryptions are generally impossible to decode without tools held only by cyber criminals, unless the ransomware is not complete and/or has bugs/flaws. To avoid data/financial issues caused by this type of malware, maintain data backups and store them on a remote server (such as 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, dubious software download sources, trojans and software activation ('cracking') tools. They use spam campaigns to proliferate malicious programs through files that they attach to emails. These attachments are usually Microsoft Office documents, PDF files, archives such as RAR, ZIP, executable files (.exe), JavaScript files, etc. Computers become infected with malware when people download and open these malicious files. Computers are also infected with malicious software through fake software updaters. These tools usually exploit bugs/flaws of installed, outdated software, or download malware rather than the updates, fixes, and so on. Various Peer-to-Peer networks (eMule, torrent clients), third party downloaders, installers, freeware download and free file hosting websites, and other sources of this type also proliferate malware. Cyber criminals use them to disguise infected files as legitimate. People who download and execute files downloaded from dubious sources often cause installation of malicious programs. If installed, trojans proliferate other malicious programs (causing chain infections). Unofficial software activation ('cracking') tools supposedly activate paid software free of charge, however, these tools often proliferate malware - they install malicious programs rather than 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 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 logs victims out of the operating system and displays a message when an attempt is made to log in.
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

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How to protect yourself from ransomware infections?

Do not 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, installers and other tools should not be trusted. Sources of this kind are often used to proliferate malware. Keep software up-to-date, however, use implemented functions or tools designed by official developers. If an installed program is not free of charge, do not activate with a third party tool. 'Cracking' tools are illegal and often lead to installation of malicious programs such as ransomware. Installed operating systems should be regularly scanned with a reputable anti-virus or anti-spyware suite and all detected threats must be removed immediately. 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 message):

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 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 malware removal: 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 malware. 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 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 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 malware activity level today:

Medium threat activity

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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