What Is an .rrcc File?

THE AUTHOR

Keith Ward
September 28, 2022

What Is an .rrcc File?

An .rrcc file is a computer file that’s been encrypted by ransomware criminals. It’s a variant of the STOP/DJVU ransomware, and although a newer entrant into the ransomware game, it’s quickly rocketed to prominence.

An .rrcc file appends standard computer files with “.rrcc,” so a Word file called “list.docx” would be renamed “list.docx.rrcc” by the ransomware after a successful attack.

These files can’t be decrypted without the key, which is where the ransom comes in. The ransom note (included in the attack as a _readme.txt file, similar to all STOP/DJVU ransomware) demands $980 in payment to get the key. This ransomware, though, has a discount option—payment is $490 if done within 72 hours. The payments are demanded in Bitcoin. Here’s the full message:

ATTENTION!

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:

hxxps://we.tl/t-5JlAL7HXIu

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:

support at bestyourmail.ch

Reserve e-mail address to contact us:

supportsys at airmail dot cc

Your personal ID:

One wonders whether discount cybercriminals are a good thing or a bad thing.

One important thing to note is that the large majority of those who suffer a ransomware attack lose at least some data. Keep that in mind when deciding whether to negotiate or not, and whether or not to pay the ransom.  

The .rrcc ransomware can also delete Volume Shadow copies, making restore operations difficult if not impossible. In addition, it usually includes password-stealing Trojans on a system, leaving victims vulnerable to things like double—or triple—extortion attacks and continued compromise of user accounts.

There are several options available to detect and remove .rrcc files, including this one. As always, the best way to protect your organization is to educate users about social engineering attacks and various email and other phishing scams. Check out Ransomware.org's comprehensive guide on how to prevent ransomware from harming your systems.

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