What is STOP Ransomware
Encryption specialist Michael Gillespie (USA) has managed to create his decoder for some versions and variants of STOP Ransomware, when the encryption tool uses an offline key for encryption. Tool is called STOPDecrypter and can be downloaded below.
STOP Ransomware (a.k.a. DJVU Ransomware) is extremely dangerous virus that encrypts files using AES-256 encryption algorithm and adds .rectot, .rezuc, .mogera or .skymap extensions to affected files. Infection mostly involves important and valuable files, like photos, documents, databases, e-mails, videos etc. Rectot or Skymap Ransomware does not touch system files to allow Windows operate, so users will be able to pay the ransom. If the malware server is unavailable (computer is not connected to the Internet, remote hackers’s server does not work), then the encryption tool uses the key and identifier that is hard-coded in it and performs offline encryption. In this case, it will be possible to decrypt the files without paying the ransom. STOP Ransomware creates _readme.txt file, that contains ransom message and contact details, on the desktop and in the folders with encrypted files. Developers can be contacted via e-mail: email@example.com and firstname.lastname@example.org, or Telegram: @datarestore. Here is the text from the file:
Don't worry my friend, 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:
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:
Reserve e-mail address to contact us:
Our Telegram account:
Your personal ID:
Malefactors want $980 for decryption of files (victims can get 50% discount, if they contact cyber criminals within 72 hours after the encryption). We must warn you, that hackers often don’t reply to victims, when they receive ransom payment. It is not recommended to transfer any funds. Files encrypted by some versions of STOP (DJVU) Ransomware can be decrypted with help of STOPDecrypter. Specialists of Dr.Web lab were able to decrypt files, encrypted with some versions of STOP Ransomware in private mode. However, Dr.Web have not yet released any public decoder. Before starting file decryption, you need to stop malicious process, and remove STOP Ransomware. To prevent ransomware infections use following apps: Emsisoft Anti-Malware and Malwarebytes Anti-Malware. In this article we describe how to remove STOP (DJVU) Ransomware and decrypt .rectot, .rezuc, .mogera or .skymap files in Windows 10, Windows 8 and Windows 7.
How STOP Ransomware infected your PC
Virus modifies “hosts” file to block Windows updates, downloading antivirus programs, and visiting sites related to security news or offering security solutions. The process of infection also looks like installing of Windows updates, malware shows fake window, that mimics 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. STOP 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. Virus assigns certain ID with the victims, that is used to name those files and supposedly to send decryption key. In order to prevent infection with this type of threats in future we recommend you to use SpyHunter 5 and BitDefender Anti-Ransomware.
Download STOP Ransomware Removal Tool
To remove STOP Ransomware completely, we recommend you to use WiperSoft AntiSpyware from WiperSoft. It detects and removes all files, folders and registry keys of STOP Ransomware.
How to remove STOP Ransomware manually
It is not recommended to remove STOP Ransomware manually, for safer solution use Removal Tools instead.
STOP Ransomware files:
STOP Ransomware registry keys:
How to decrypt and restore .rectot, .rezuc, .mogera or .skymap files
Use automated decryptors
Download STOPDecrypter (.rectot, .rezuc, .mogera or .skymap variations)
STOPDecrypter is able to decrypt .rectot, rezuc, .mogera or .skymap files, encrypted by STOP Ransomware. This tool was developed by Michael Gillespie. It requires encrypted and original file pair with the size more ~150 Kb and works only for those encrypted with offline keys. Download it here:
If you are infected with STOP 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 .rectot, .rezuc, .mogera or .skymap 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.
How to protect computer from viruses like STOP Ransomware in future
1. Get special anti-ransomware software
Use BitDefender Anti-Ransomware
Famous antivirus vendor BitDefender released free tool, that will help you with active anti-ransomware protection, as additional shield to your current protection. It will not conflict with bigger security applications. If you are searching complete internet security solution consider upgrading to full version of BitDefender Internet Security 2018.
2. Back up your files
Regardless of success of protection against ransomware threats, you can save your files using simple online backup. Cloud services are quite fast and cheap nowadays. There is more sense using online backup, than creating physical drives, that can get infected and encrypted when connected to PC or get damaged from dropping or hitting. Windows 10 and 8/8.1 users can find pre-installed OneDrive backup solution from Microsoft. It is actually one of the best backup services on the market, and has reasonable pricing plans. Users of earlier versions can get acquainted with it here. Make sure to backup and sync most important files and folders in OneDrive.
3. Do not open spam e-mails and protect your mailbox
Malicious attachments to spam or phishing e-mails is 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 SpamFighter. It works with various desktop applications, and provides very high level of anti-spam protection.