Threat Database Ransomware Qotr Ransomware

Qotr Ransomware

The Qotr Ransomware is threatening software that has been used to target users' computers and networks. The Qotr Ransomware is designed to encrypt data on the affected computer, preventing access to essential files until a ransom is paid. This type of attack can be devastating for businesses or individuals who rely heavily on their data and may not have the resources available to recover their data or pay the attacker.

How the Qotr Ransomware Attack is Executed?

The Qotr Ransomware is one more variant of the infamous STOP/Djvu Ransomware. The Qotr Ransomware works by exploiting vulnerabilities in programs or operating systems that are installed on the user's computer. Once the malware has been installed, it will begin encrypting files with a strong encryption algorithm, making them inaccessible unless the ransom is paid. To indicate that the files have been encrypted and are being held for ransom, the ransomware may use different methods to mark the encrypted files:

  1. File extension changes: The ransomware may add a new file extension to the encrypted files to indicate that they have been encrypted, which in this case is the file extension '.qotr.' For example, a file named "report.doc" may be renamed to "report.doc.qotr".
  2. New file names: The ransomware may rename the encrypted files with a completely new name, such as a random string of characters or a name that includes the attacker's email address or other identifying information.
  3. Ransom notes: The ransomware also may create a ransom note that appears on the victim's computer or is left in folders containing encrypted files. The note typically explains that the victim's files have been encrypted and provides instructions on how to pay the ransom to obtain the decryption key.
  4. Desktop background changes: Some ransomware strains may change the desktop background of the victim's computer to display a message from the attackers explaining that the files have been encrypted. The attacker will typically demand payment in either cryptocurrency or other forms of digital currency, such as Bitcoin.

How the Qotr Ransomware can Infect a Computer

There are various methods used by ransomware developers to deliver their threats. The most commonly used are:

a. Phishing emails: Qbot is often spread through email phishing campaigns, in which an attacker sends an email containing a tampered attachment or link to a victim. The email may be disguised as a legitimate message from a trusted source, such as a financial institution or government agency..

b. Exploiting software vulnerabilities: Qbot may exploit vulnerabilities in software, such as operating systems or applications, to infect a computer. Once a vulnerability is identified, the attacker can use it to execute code remotely on the victim's system.

c. Compromised downloads: Qbot also may be downloaded through deceiving websites or file-sharing networks. These websites or networks may host files that are disguised as legitimate software but are, in fact, infected with Qbot or other malware. The attackers demand the payment of $980, which can be reduced to $490 if the victim contacts them within 72 hours after the attack. To make this contact possible, they provide two email addresses, and The victims are allowed to send one file to be decrypted for free, so they can be sure that the attackers have a working decryption software.

The ransom note generated by the Qotr Ransomware as a text file named '_readm.txt' is displayed on the victims' screen and 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:

Your personal ID:'

Computer users must protect themselves against the Qotr ransomware attacks by regularly patching their programs and operating systems and using anti-malware software with up-to-date definitions. Backing up important files onto an external drive or cloud storage service is also an effective way to protect against data loss due to ransomware attacks.'


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