Rotor ransomware removal instructions
What is Rotor?
Rotor or RotorCrypt (Trojan-Ransom.Win32.Rotor) is a ransomware-type virus that infiltrates systems and stealthily encrypts various files. During encryption, Rotor appends the names of encrypted files with:
- !==solve a firstname.lastname@example.org===.SENRUS17
- !-=solve a email@example.com=-.PRIVAT66
- !==SOLUTION OF THE PROBLEMfirstname.lastname@example.org==.Black_OFFserve
- ! ,--, Revert Access ,--, email@example.com ,--,.BlockBax_v3.2
- !@!@!@_contact firstname.lastname@example.org___!@!@.psd
- !@#$_(decryp in the EMail)email@example.com____$#@..AlfaBlock
- !@#$_(decryp in the EMail)firstname.lastname@example.org____$#@
- !_!email__ email@example.com __!..PAYMAN
- !!!! firstname.lastname@example.org !!!.prus
Unlike other ransomware, this virus does not open pop-up windows or create text files containing ransom-demand messages. Information regarding the infiltration is provided only after victims contact cyber criminals via email addresses provided (added as file extensions).
The reply from cyber criminals contains very little text and merely states that files are encrypted and that the victim must pay a ransom to restore them. The price of decryption is 7 Bitcoins (currently, 1 Bitcoin is equivalent to ~$637). This ransom is rather large as compared to other ransomware-type viruses (which usually fluctuate between .5 and 1.5 Bitcoin). Victims are permitted to send these cyber criminals a single file (up to 30MB), which is decrypted and returned to the victim. This is supposedly proof that files can be decrypted. Research shows, however, that cyber criminals often ignore victims, even if payment is submitted. Therefore, if your computer has been infected with a ransomware-type virus, you should never attempt to contact cyber criminals or pay any ransom - you will probably be scammed. Fortunately, files encrypted by Rotor can be restored using Kaspersky's RakhniDecryptor and there is no need to pay. If your computer has been infected with other ransomware that is not decryptable, the only solution is to restore your system/files from a backup.
Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:
There are dozens of viruses similar to Rotor including, for example, Anubis, Ncrypt, CTB-Locker, and Nuke. All have more or less identical behavior - they encrypt files and make ransom demands. These viruses mostly use asymmetric cryptography (encryption and decryption keys are different) and, thus, the only noticeable difference is size of ransom. Even the distribution methods are similar. Ransomware-type viruses are usually distributed via peer-to-peer (P2P) networks and various third party download sources (e.g., Torrents, freeware download websites, etc.), malicious files attached to email spam, fake software update tools, and trojans. For this reason, be cautious when downloading files from unofficial sources and opening attachments received from unrecognized/suspicious emails. Furthermore, keep your installed applications up-to-date and use a legitimate anti-virus/anti-spyware suite. Poor knowledge and lack of caution is often the reason for these computer infections.
Ransom-demand message (reply from cyber criminals):
Your files were encrypted/locked
As evidence can decrypt file 1 to 3 1-30MB
The price of the transcripts of all the files on the server: 7 Bitcoin
Recommend to solve the problem quickly and not to delay
Also give advice on how to protect Your server against threats from the network
(Files sql mdf backup decryption strictly after payment)!
Screenshot of files encrypted by Rotor ransomware ("!____GLOK9200@GMAIL.COM____.tar" or "!email@example.com____.tar" extensions):
Screenshot of Kaspersky RakhniDecryptor (download link):
Rotor ransomware removal:
Instant automatic removal of Rotor 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 Rotor virus. Download it by clicking the button below:
- What is Rotor?
- STEP 1. Rotor virus removal using safe mode with networking.
- STEP 2. Rotor ransomware removal using System Restore.
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.
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.
Video showing how to start Windows 8 in "Safe Mode with Networking":
Log in to the account infected with the Rotor 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.
2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.
3. Next, type this line: rstrui.exe and press ENTER.
4. In the opened window, click "Next".
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 Rotor ransomware virus infiltrating your PC).
6. In the opened window, click "Yes".
7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining Rotor 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 Rotor 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.
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 protect your computer from file encrypting ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and Malwarebytes Anti-Ransomware, which artificially implant group policy objects into the registry to block rogue programs such as Rotor ransomware.
HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:
Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:
- 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 Rotor ransomware: