Ransomware

Oopu Virus (.oopu file) Ransomware Removal

What is Oopu ransomware?

Oopu ransomware is a recently found file-encrypting malware. It is a variant of Stop/Djvu family. Upon infiltration, it renders all the files inaccessible by using a powerful encryption algorithm.

oopu

It appends the “.oopu” extension at the end of all the filenames after encryption. This is why it is also known as .Oopu File Virus. For an instance, a file named “sample.png” will appear as “sample.png.oopu” and so on. These encoded files cannot be accessed without a decryption tool.

After successful encryption of all the data, a ransom note “_readme.txt” is also created on the computer. It contains information about how to pay the ransom money to purchase the decryption key. Read this guide carefully to learn how to remove Oopu Virus and recover your files.

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Some threats keep getting back on PC if all associated files are not removed. So you are advised to use a powerful Malware Removal Tool to run a thorough scan of your PC and delete all threats at once.

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More about Oopu Virus

Oopu is a virus programmed to extort money from innocent users. It uses file encryption as its weapon to force its victims. It silently intrudes on the targeted system and locks all the data with 2048 bit encryption. Users cannot access any of their data without purchasing the decryption tool.

Oopu Ransomware prevents users from accessing their own files until they pay hefty ransom money. It is a member of the Stop/Djvu Ransomware family. Developers behind these particular threats have been using this illicit profit-making for a long time.

Ransom Note left by Stop/Djvu Virus

This new variant is almost similar to all its previous versions. It adds its own “.Oopu” extension to encrypted files and leaves “_readme.txt” ransom note. It demands “$980 USD” as ransom money but offers a 50% discount if victims pay within 72 hours. So, a user needs to pay “$490 USD” in bitcoin within 3 days to get a decryption key.

How does Oopu Ransomware spread?

Creators of threats like Oopu Virus use various methods to spread their creations. Spam emails are one of the most used methods to target innocent users. Emails containing malicious attachments and links are used as carriers to distribute harmful threats. When you get an email from an unknown person or organization that carries some attachments, do not open them.  Do not click on links without verifying the sender and always scan attached files before opening.

Oopu File Virus can also get promoted through bundled freeware programs that users download from shady websites. It can also be distributed via P2P file sharing, cracked software or games, illegal patches, and fake updates. Also, avoid browsing porn or torrent sites and clicking on bogus advertisements on the web. Fake pop-up ads offering updates for media players, Adobe or browsers, or even anti-virus are dangerous. They often redirect your suspicious websites that can trigger the download of malware on your system.

Threat Analysis

Name Oopu
Type Ransomware, File-Encrypting virus
Family STOP/DJVU Ransomware
Extension .Oopu
Threat Level High (Encrypt all your data and Restrict access to your files).
Symptoms Victims cannot access any files on their PC and find Ransom notes asking for money.
Damage Oopu Ransomware will encrypt your data by adding “.oopu” extension to file names and demand ransom money for the decryption key
Ransom Note _Readme.txt
Ransom Amount $490 USD to $980 USD
Distribution It is mainly distributed through spam emails, bundled freeware, porn, or torrent sites.
Removal Download SpyHunter 5 Anti-Malware
File Recovery Download Data Recovery Software

Why it is harmful to your PC?

Oopu Ransomware is a dangerous computer malware. Once your files are encrypted, you can no longer access them. All your data will still be on your system but only inaccessible. In most cases, it is highly difficult to break encryption without interference from virus creators. However, we strongly advise users to not contact the makers of this virus.

STOP/DJVU Ransomware

Creators of this threat advise victims to purchase the decryption tool and unique key. They say it’s the only way to recover encrypted files. Developers of this malware launch a new variant almost every week, making it difficult to find a permanent solution. Unfortunately, there is no free decryptor available right now that recovers your files for free.

You might think that the best way to get rid of Oopu File Virus is to pay ransom money. It is very much possible that you will get scammed. Many ransomware victims reported that they did not get the decryption key after paying the extortion. Some said that their computer was attacked again after paying once. So, you cannot trust cyber criminals to be fair. They will surely try to attack your system again for more profit.

How to open .Oopu files?

As mentioned above, there is no free Oopu virus decryptor available for now. So the best way to recover data is to restore it from the backup. If you have kept a backup copy of all your files then you only need to remove this virus from your PC. It is the only way to prevent this malware from encrypting your files further.

We advise you to use a powerful Anti-malware to scan and remove this threat from your computer. Removal of .Oopu Virus will not restore your data but it will ensure that your PC is safe to bring your backup files. If you don’t have a backup, then you can use professional data recovery software to restore files.

Right now it is the only solution you have unless you want to pay ransom money. Research shows that most victims are unable to recover their files even after paying the extortion fee. Sometimes data get corrupted, some times they don’t get the decryption tool. So we don’t recommend paying money to cybercriminals because it does not guarantee full recovery of encrypted files.

Rather than giving your hard-earned money to cyber crooks who took your files hostage, invest in good security software. Remove this Oopu Virus completely from your system and make sure that something like this never happens. Always make backups of your important files on external hard drives, USB drives, or cloud drives to avoid data loss in the future.

How to Remove Oopu Virus

As you already know, Oopu Virus is a notorious and cunning malware that is quite hard to remove through manual means. This virus can keep coming back on the infected computer through files and shortcuts or settings that it has already created on your machine. Removing all those at once is the only way to get rid of this infection and stop it from getting into your system ever again.

So the best way to remove Oopu effectively is to use a powerful Automatic Removal Tool and save your time and efforts. This software is a well-trusted and very powerful anti-malware program that can detect all hidden threats like Trojan, Ransomware, Worms, Spyware, Rootkits, and many others. It also provides 24X7 customer support and one-on-one Spyware HelpDesk support for Custom Malware removal. Advanced System Guard feature detects and removes threats in real-time. It has a very User-Friendly Interface and regular Malware updates make it most effective against the latest malware attacks.

How SpyHunter 5 Anti-Malware Works

  • First, you need to click on the below download button to get the software.

Geek’s Recommendation

Some threats keep getting back on the machine if all associated files are not removed. So you are advised to use a powerful Malware Removal Tool to run a thorough scan of your PC and delete all threats at once.

SpyHunter 5 Anti-Malware offers a 7-day fully-functional Free Trial. Credit card required, NO charge upfront. No charge if you cancel up to two business days before the trial period ends. Read SpyHunter 5 Review, and Free SpyHunter Remover details.

  • Then double-click on the installer you downloaded to install the program.

double clickAllow access

  • Launch the Anti-Malware application and click on Start Scan Now button.

Scan for Oopu

  • The software will scan your PC for all hidden threats and viruses on your system.

Scan for Oopu

  • Click on the Next button to see results and delete all the threats and viruses.

Remove Oopu

How To Decrypt .Oopu Files

As all your files are encrypted, you need to recover your data without paying ransom money to hackers. If your files are important then you must have created a backup and you can use that backup to recover your files. If you don’t have a backup or this virus has encrypted your backup files, then you are left to seek professional help.

As there is no Oopu ransomware decryptor available, we recommend you use powerful data recovery software to decrypt Oopu virus files. It is a risk-free and smart way. You can just download the free version and scan your PC for files. There is a high probability that it can recover most of your files in a fraction of the amount that hackers are demanding. It is also needless to say that paying hackers will only motivate hackers to carry out more attacks.

  • First, you need to download Data Recovery software on your PC.

Download Data Recovery Software Now

  • Install the program, launch it then select the Data type to recover, and click the Next button.

select Data type

  • Select the location from where you want to recover data and click the Scan button.

Select location

  • After the scan, the software will list all files, select them and click the Recover button.

Recover Oopu encrypted files

Manual Oopu Virus Removal Guide

Before you start Manual Removal

Please Bookmark This Page by pressing the {ctrl+D} button or print it out on paper before you start the Manual Removal because you may need to restart your PC or browser.) Attention! For the safety of your system, please confirm a few things before you begin manual removal:

  1. You have done this before, which means you have experience in removing the virus manually;
  2. That you know your way around PC and  all necessary processes and applications;
  3. You know about Registry entry and the Serious repercussions of any mistake;
  4. Make sure you can reverse any mistake made during virus removal.

If you don’t attain any of the above standards, then manual removal could be a very risky idea. It is most likely best for you to use the SpyHunter 5 Anti-Malware which is totally secure and efficient method.

SpyHunter 5 Anti-Malware offers a 7-day fully-functional Free Trial. Credit card required, NO charge upfront. No charge if you cancel up to two business days before the trial period ends. Read SpyHunter 5 Review, and Free SpyHunter Remover details.

 

Start PC in safe mode with networking

  • Press Windows Key + R buttons together on the keyboard.
  • Type msconfig in the Run Box then click the OK button.
  • Click on the Boot tab then the System configuration window will appear.
  • Choose Safe Boot, check the network box, Click Apply, and press the OK button.

Safe boot

Kill Malicious Process From Task Manager

  • Press Windows Key + R buttons together on the keyboard.
  • Type taskmgr in Run Box and then click the OK button.
  • Find the virus related or unknown malicious process.
  • Now right-click on it then click End process.

Stop Oopu related task

Remove Oopu Ransomware Virus from PC

  • First of all Press Windows Key + R buttons together.
  • Type appwiz.cpl in the Run box and then click the OK button.
  • Now Programs and Features windows will appear on the screen.
  • Find and remove all virus related or malicious programs.

Remove Oopu

Warning: Do not play with Windows registry, host file, or restore options if you don’t have previous experience with it. Removing wrong files may break your system entirely. So if you are not sure, then stick to the Automatic Malware Removal option.

SpyHunter 5 Anti-Malware offers a 7-day fully-functional Free Trial. Credit card required, NO charge upfront. No charge if you cancel up to two business days before the trial period ends. Read SpyHunter 5 Review, and Free SpyHunter Remover details.

Remove Virus related IP addresses from Hosts’ Files

  • Press Windows Key + R buttons together on the keyboard.
  • Type C:\Windows\System32\drivers\etc in Run Box and then click the OK button.
  • Now open the host file with Notepad.
  • Look for any suspicious IP addresses that might be related to the Virus.
  • Delete all the malicious IP addresses and save the host files.

Remove Oopu virus related IP address

Remove Virus related Windows Registry entries

  • Press Windows Key + R buttons together on the keyboard.
  • Type regedit in Run Box and then click the OK button.
  • Registry Editor will open, then press CTRL +F buttons together.
  • Now type Oopu and then click on Find Next button.
  • Find all the related entries and delete them one by one

Remove Oopu related registry

Delete Virus related files from your PC

When a threat gets on to a PC, it most likely creates some files at different locations on the system. These files are used to perform a specific action and also help malware in getting back to the computer once it’s removed. So you just need to find also delete all those files associated with the virus. Carefully follow the below instruction :

  • Press Windows Key + R buttons together on the keyboard
  • Type each of the following in Run Box and press the OK button
  1. %AppData%
  2. %LocalAppData%
  3. %ProgramData%
  4. %WinDir%
  5. %Temp%

For the first four options, look for any recent folder related to the .Oopu File Virus and remove them. For the Temp folder, you can delete all the files.

Remove Oopu Virus via system restore

  • Press Windows Key + R buttons together on the keyboard.
  • Type cmd in Run Box and then click the OK button.
  • Type cd restore and press Enter, then type rstrui.exe and press Enter.
  • When the System Restore window opens on your computer screen click the Next button, then choose a System Restore point you have created in the past and click the Next button.
  • Finally, click on the Yes button to start the system restoration process.

Remove Oopu via system restore

Note: This will only work if you have a restore point set on your PC or it will give an error message. Restoring the computer to a previous version may or may not remove this virus. Most of the time, viruses just delete all the restore points. If this trick does not work for you then don’t get disappointed.

Tips To Prevent Oopu Virus in Future

  • Use a good anti-virus, be it a free version but don’t use cracked security programs.
  • Make sure that your Windows firewall is active, so it can block upcoming threats.
  • Keep your Windows/Mac OS and other programs updated to avoid vulnerabilities.
  • Download updates only from official websites, don’t use suspicious sites.
  • Never download and install pirated software, games, or illegal patches on your PC.
  • Do not open spam emails from an unknown sender and scan all attachments before opening.
  • Never download freeware third-party programs from unreliable sources or websites.
  • Avoid connecting your PC to unsafe public Wi-Fi to protect your privacy.
  • You can also use a VPN to spoof your connection and avoid malicious sites.
  • Create a system restore point on your system for security purposes.
  • Keep a backup of all your important files to avoid data loss.

SpyHunter 5 Anti-Malware

Some threats keep getting back on PC if all associated files are not removed. So you are advised to use a powerful Malware Removal Tool to run a thorough scan of your PC and delete all threats at once.

Compatible with: Windows XP/Vista/7/8/10/11

Special Offer SpyHunter 5 Anti-Malware offers a 7-day fully-functional Free Trial. Credit card required, NO charge upfront. No charge if you cancel up to two business days before the trial period ends. Read SpyHunter 5 Review, and Free SpyHunter Remover details.

About the author

Robert Calvert

Robert is the Chief Security Expert and Founder of PCSafetyGeek.com website. He is a cybersecurity enthusiast who loves to research about Malware outbreaks and write about their remedies. He also like to spend time trying new software, reviewing them and sharing IT news. However he is a real coffee lover and likes to play chess in spare time (which is quite rare 😜).

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