Karsovrop Ransomware Demands Bitcoin Ransom

Karsovrop, a type of ransomware, is a malicious program that encrypts data and demands ransom payments for decryption. Our research team encountered Karsovrop while going over newly discovered malicious file samples.

This ransomware encrypts files and modifies their filenames on our testing system. For instance, a file originally labeled "1.jpg" becomes "1.jpg.karsovrop," and "2.png" transforms into "2.png.karsovrop." Subsequently, a ransom-requesting message titled "FILE RECOVERY.txt" is generated.

Karsovrop's ransom note contains decryption instructions, specifying that the victim must pay a ransom in Bitcoin cryptocurrency for data recovery. The ransom amount depends on how quickly the victim establishes contact.

Prior to meeting the ransom demands, a complimentary decryption test is offered. The victim can send the attackers a single encrypted file, not exceeding 1MB in size (non-archived), and without containing valuable information (e.g., databases, backups, large Excel sheets, etc.).

The message concludes with warnings against actions that could render the files undecryptable or result in increased financial loss.

Karsovrop Ransom Note Offers Decryption of a Single File

The full text of the Karsovrop ransom note goes as follows:

YOUR FILES ARE ENCRYPTED !!!

TO DECRYPT, FOLLOW THE INSTRUCTIONS:

You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files.
Free decryption as guarantee
Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.)

Attention!
Do not rename encrypted files.
Do not try to decrypt your data using third party software, it may cause permanent data loss.
If you delete a file with an extension (_TMP) This will cause this file to permanently damage!!!!!

Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

If you want to restore them, write us to the e-mail
karsovrop@tutanota.com
Write this ID in the title of your message
ID:-

What Can You Do to Protect Your Data from Ransomware?

Protecting your data from ransomware is crucial in today's digital landscape. Here are several proactive measures you can take to enhance your data security and minimize the risk of falling victim to ransomware attacks:

Regularly Backup Your Data:
Implement a regular backup strategy for important files and ensure backups are stored in a location not directly accessible from your network. Cloud-based or offline backups are recommended.
Test your backups periodically to ensure they can be successfully restored.

Keep Software and Systems Updated:
Regularly update your operating system, software, and applications to patch security vulnerabilities. Enable automatic updates when possible.
Remove or update any outdated software to eliminate potential entry points for ransomware.

Use Robust Antivirus and Anti-Malware Software:
Install reputable antivirus and anti-malware solutions and keep them up-to-date. Regularly scan your system for potential threats.
Enable real-time scanning to detect and block malicious activities.

Exercise Caution with Email Attachments and Links:
Be cautious when opening email attachments, especially from unknown or unexpected senders. Verify the legitimacy of emails before clicking on links.
Enable email filtering to identify and quarantine suspicious emails.