What is Rokku Ransomware?
Once Rokku Ransomware settles in, it locks various types of files on user’s computer with a strong cryptosystem called RSA-3072. It means that without a unique decryption key it would be impossible to regain your files. If you want to obtain a unique key for decryption, you will have to pay a particular price in digital currency called bitcoins. It seems that you have two options: either pay the ransom and get your files back or erase Rokku Ransomware from your computer and lose your data. If you back up your files occasionally then there is nothing to worry about. You could delete this malware either automatically with the legitimate security tool or manually with the instructions provided at the end of the article.
How does Rokku Ransomware work?
It is most likely that your computer was infected when you downloaded and opened a malicious Microsoft Word document that you may have received with spam in your email inbox. Any file that does not make any sense to you or anything that comes from unknown sender should be considered as suspicious and treated carefully because it could contain malicious data.
After you opened the malicious file that activated Rokku Ransomware, the malware placed its files in the %ALLUSERSPROFILE%\Windows; %ALLUSERSPROFILE%\Application Data\Windows directories and started encrypting your data. This ransomware can encrypt lots of different file types, such as: mdb, rtf, txt, xml, csv, pdf, prn, dif, slk, ods, xltx, xlm, odc, xlw, jpg, jpeg, jpe, bmp, png, tif, tiff, dib, gif, svg, svgz, rle, tga, vda, icb, wbm, wbmp, jpf, jpx, jp2, j2k, j2c, jpc, avi, mkv, mov, mp4, wmv and many others as the whole list is ten times bigger. Therefore, the chances that even a small part of your files were not affected are close to zero.
All your files will remain in the same places, but they will have “.rokku” extension and you will not be able to open them. Moreover, after the encryption is complete, Rokku Ransomware displays a pop-up window on your screen. Unlike the other ransomware programs, this one does not give any time limits or explain the situation. The message is rather short and written in English, but you can read it in other languages too. It can appear as readme.txt or readme.html files in random folders too. Apparently, the text only tells you how to reach the real instructions that will show you a way to exchange the demanded payment into your unique decryption key. If you follow the given instructions, you will be able to decrypt one chosen file for free as a sample. Also, our researchers tested Rokku Ransomware themselves and say that it is not a trick. If you pay the ransom, you should get the decryption key and a program that can decrypt the files.
How to remove Rokku Ransomware?
If you do not possess backup copies and the data on your computer is irreplaceable, you may consider fulfilling the demands. However, if the most important files rest in some removable media and the rest of them are not that important, there is no reason to waste your savings. Simply take a look at the instructions available below the text for manual removal and see if you could manage to remove Rokku Ransomware on your own. They might seem rather complicated, because the main malicious file was probably downloaded by you and it should have a random title, so we cannot tell you its location or name. We can only advise you to delete any suspicious text documents that you downloaded recently. They could be placed on your desktop, the Downloads directory or any other location where you save files. If this seems too difficult, you could try removing it with a security tool. A legitimate antimalware tool would locate the malicious data of Rokku Ransomware and erase it from your computer. If you still have any questions related to this malware, leave us a message in the comments section.
Display hidden files and folders
Windows 8 and Windows 10
- Open Windows Explorer.
- Select the View tab on top-left corner.
- Click Options on top-right corner.
- Choose Change folder and search options.
- Pick View tab and select Show hidden files, folders and drives.
- Click OK.
Windows 7 and Windows Vista
- Open Start and select Control Panel.
- Choose Appearance and Personalization.
- Open Folder Options and click the View tab.
- Select Show hidden files, folders and drives.
- Click OK.
Windows XP
- Click on Start and open Control Panel.
- Select Appearance and Themes.
- Choose Folder options and click the View tab.
- Locate and select Show hidden files and folders.
- Click OK.
Erase Rokku Ransomware
- Locate malicious text documents.
- Right-click these files separately and select delete.
- Open the Explorer and insert %ALLUSERSPROFILE%\Windows for Win 7, Win 8, 8.1 and Win 10 or %ALLUSERSPROFILE%\Application Data\Windows if you have Windows XP.
- Find file named as csrss.exe.
- Right-click csrss.exe and select Delete.
- Find readme.txt and readme.html files and right-click them, select Delete.
- Empty your Recycle bin.
tested removal of Rokku Ransomware*
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