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What is Oohu Ransomware
Oohu Ransomware is a malicious software belonging to the Djvu ransomware family, designed to encrypt files and modify their file names by appending the .oohu extension. This ransomware variant employs the Salsa20 encryption algorithm, making it extremely difficult to decrypt files without the attacker’s assistance. After encryption, it generates a ransom message named _readme.txt. The ransom note demands a payment of $490 to $980 in Bitcoin to decrypt the files. However, there is no guarantee that the cybercriminals will provide the decryption key after receiving the payment. If your computer gets infected with Oohu Ransomware, it is advised not to pay the ransom, as there is no guarantee that the cybercriminals will provide the decryption key. Instead, follow our professional guide to remove the ransomware and attempt to recover your files using available tools and methods.
Don't worry, you can return all your files!
All your files like pictures, 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:
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.
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Currently, there is no specific decryption tool available for Oohu Ransomware. Emsisoft, a cybersecurity company, has been successful in creating decryption tools for some ransomware variants (Decryptor for STOP Djvu), but there is no mention of a specific effectiveness for Oohu Ransomware. In general, file recovery tools like Stellar Data Recovery Pro can help recover lost or deleted files from various data loss scenarios, such as accidental deletion, drive formatting, and disk corruption. However, the success rate of recovering encrypted files like .oohu files may vary depending on the tool and the specific ransomware variant.
How Oohu Ransomware infects computers
Oohu Ransomware infiltrates computers using a variety of methods that often involve social engineering techniques, deceptive downloads, and exploiting vulnerabilities in the operating system or installed programs. Some of the common methods include phishing emails with malicious attachments, malvertising and exploit kits, fileless attacks, Remote Desk Protocol, drive-by downloads, pirated software, network propagation, and malware obfuscation. By understanding these methods, users can take appropriate precautions to protect their systems from ransomware attacks.
- Download Oohu Ransomware Removal Tool
- Get decryption tool for .oohu files
- Recover encrypted files with Stellar Data Recovery Professional
- Restore encrypted files with Windows Previous Versions
- Restore files with Shadow Explorer
- Restore media files with Media Repair
- How to protect from threats like Oohu Ransomware
Virus modifies “hosts” file to block Windows updates, downloading antivirus programs, and visiting sites related to security news or offering security solutions. Oohu Ransomware comes along with AZORult trojan, which was initially created to steal logins and passwords. The process of infection also looks like installing Windows updates, the malware shows a fake window, that mimics the update process.
It uses rdpclip.exe to replace a legal Windows file and to launch an attack on a computer network. After encrypting the files, the encrypter is deleted using the delself.bat command file. Oohu Ransomware virus is propagated via spam attack with malicious e-mail attachments and using manual PC hacking. Can be distributed by hacking through an unprotected RDP configuration, fraudulent downloads, exploits, web injections, fake updates, repackaged, and infected installers. The virus assigns a certain ID to the victims, which is used to name those files and supposedly to send a decryption key. Great tools to protect against Oohu Ransomware are: Emsisoft Anti-Malware and Malwarebytes Anti-Malware.
Download Oohu Ransomware Removal Tool
To remove Oohu Ransomware completely, we recommend you to use SpyHunter 5 from EnigmaSoft Limited. It detects and removes all files, folders, and registry keys of Oohu Ransomware. The trial version of SpyHunter 5 offers virus scan and 1-time removal for FREE.
Alternative Removal Tool
To remove Oohu Ransomware completely, we recommend you to use Norton Antivirus from Symantec. It detects and removes all files, folders, and registry keys of Oohu Ransomware and prevents future infections by similar viruses.
How to remove Oohu Ransomware manually
It is not recommended to remove Oohu Ransomware manually, for safer solution use Removal Tools instead.
Oohu Ransomware files:
Oohu Ransomware registry keys:
How to decrypt and restore .oohu files
Use automated decryptors
Download STOP Djvu Decryptor from EmsiSoft (.oohu variations)
IMPORTANT: Read this detailed guide on using STOP Djvu Decryptor to avoid file corruption and time wasting.
STOP Djvu Decryptor is able to decrypt .oohu files, encrypted by Oohu Ransomware. This tool was developed by EmsiSoft. It works in automatic mode, but in most cases works only for files encrypted with offline keys. Download it here:
Dr.Web Rescue Pack
Famous antivirus vendor Dr. Web provides free decryption service for the owners of its products: Dr.Web Security Space or Dr.Web Enterprise Security Suite. Other users can ask for help in the decryption of .oohu files by uploading samples to Dr. Web Ransomware Decryption Service. Analysis of files will be performed free of charge and if files are decryptable, all you need to do is purchase a 2-year license of Dr.Web Security Space worth $120 or less. Otherwise, you don’t have to pay.
If you are infected with Oohu Ransomware and removed it from your computer, you can try decrypting your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually you can do the following:
Use Stellar Data Recovery Professional to restore .oohu files
- Download Stellar Data Recovery Professional.
- Click Recover Data button.
- Select type of files you want to restore and click Next button.
- Choose location where you would like to restore files from and click Scan button.
- Preview found files, choose ones you will restore and click Recover.
Using Windows Previous Versions option:
- Right-click on infected file and choose Properties.
- Select Previous Versions tab.
- Choose particular version of the file and click Copy.
- To restore the selected file and replace the existing one, click on the Restore button.
- In case there is no items in the list choose alternative method.
Using Shadow Explorer:
- Download Shadow Explorer program.
- Run it and you will see screen listing of all the drives and the dates that shadow copy was created.
- Select the drive and date that you want to restore from.
- Right-click on a folder name and select Export.
- In case there are no other dates in the list, choose alternative method.
If you are using Dropbox:
- Login to the DropBox website and go to the folder that contains encrypted files.
- Right-click on the encrypted file and select Previous Versions.
- Select the version of the file you wish to restore and click on the Restore button.
Use Media Repair to decrypt media files encrypted with .oohu
- Download Media Repair tool.
- Right-click on the downloaded archive, and select Extract to Media_Repair\.
- Then double-click on the extracted .exe file to launch the utility.
- At first, you have to choose which file type you want to decrypt. You can do it from the drop-down menu in the utility.
- Next, browser the folder with encrypted or reference files. Choose any of them and click on the Test icon located in the top right corner.
- Media Repair will display a pop-up message with information on whether it can repair the selected file or not.
- After checking if it is possible or not, select your reference file and click on the icon right under the Test button we used in step #5.
- If the file pair is properly matched, you can move on and hit the Play button to start repairing. You can also stop the process anytime by clicking on the Stop button.
How to protect computer from viruses, like Oohu Ransomware, in future
1. Get special anti-ransomware software
Use G-DATA STOP/Djvu vaccine
G DATA has released a vaccine to block STOP/DJVU ransomware from encrypting victims’ files after infection. The vaccine prevents the ransomware from encrypting files anymore, but it does not prevent the infection itself. The vaccine is available on GitHub. Download it below:
Use ZoneAlarm Anti-Ransomware
Famous antivirus brand ZoneAlarm by Check Point released a comprehensive tool, that will help you with active anti-ransomware protection, as an additional shield to your current protection. The tool provides Zero-Day protection against ransomware and allows you to recover files. ZoneAlarm Anti-Ransomware is compatible with all other antiviruses, firewalls, and security software except ZoneAlarm Extreme (already shipped with ZoneAlarm Anti-Ransomware) or Check Point Endpoint products. The killer features of this application are: automatic file recovery, overwrite protection that instantly and automatically recovers any encrypted files, file protection that detects and blocks even unknown encryptors.
2. Back up your files
As an additional way to save your files, we recommend online backup. Local storage, such as hard drives, SSDs, flash drives, or remote network storage can be instantly infected by the virus once plugged in or connected to. Oohu Ransomware uses some techniques to exploit this. One of the best services and programs for easy automatic online backup is iDrive. It has the most profitable terms and a simple interface. You can read more about iDrive cloud backup and storage here.
3. Do not open spam e-mails and protect your mailbox
Malicious attachments to spam or phishing e-mails are the most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications and provides a very high level of anti-spam protection.