Threat Database Ransomware Qlnn Ransomware

Qlnn Ransomware

Qlnn Ransomware is a file-blocking ransomware infection that prevents computer users from accessing their data, such as videos, documents, images, etc., by corrupting the targeted files. To corrupt the files, Qlnn will encrypt them with a hard-to-break encryption algorithm and change their names by adding the '.qlln' extension to the end of their names. The objective of the file encryption is to demand a ransom from the infected users if they want to recover the inaccessible data.

When the file encryption is done, Qlnn Ransomware will display a file named '_readme.txt' containing the demands of the attackers, as well as the means to contact them. They inform that victims should use the email addresses '' and ''

The ransom note displayed by Qlnn reads:


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.

To get this software you need write on our e-mail:

Reserve e-mail address to contact us:'

Therefore, if you are not accessing your files and notice that they now have the weird '.qlln.' extension appended to their names, this means that the Qlln malware, a member of the STOP/Djvu Ransomware family has infected your computer. The recommended course of action is to scan your computer with an updated anti-malware product and remove the threat presented by Qlln.


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