Fatp Ransomware (.fatp Files)

Fatp Ransomware uses the Salsa20 encryption algorithm. This STOP/Djvu family is one of the most popular infection!

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Trojan Killer, Trojan Scanner.

About Fatp Ransomware:


NameFatp Virus
Version0601
File Extenstion.fatp
Contact[email protected], [email protected]
FamilySTOP/Djvu Ransomware
Note_readme.txt
Offline ID5IRhyFuF3rXlXBvF6jAWjHEAnAb432icDCcvZyt1
Last seenNovember 27, 2022
AlgorithmSalsa20 encryption. If Fatp cannot establish a connection to crooks server before starting the encryption process, it uses the offline key. This key is the same for all victims(!), making it possible to decrypt .fatp files in the future.
RansomFrom $490 to $980 (in Bitcoins)
Damage
  1. โฎž Can delete Volume Shadow copies to make victimโ€™s attempts to restore data impossible;
  2. โฎž Adds a list of domains to HOSTS file to block access to certain security-related sites;
  3. โฎž Installs password-stealing Trojan, like Redline Stealer, Vidar Stealer, Smokeloader, Azorult and others;
DistributionThird-party downloaders, installers, peer-to-peer networks, RDP exploits, etc.,
RSA Public Key-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuS0M8VCLGWVhBLGo2pqB SGYfvgUYDE8JiTANheryvrGXhVxzGE/On0JE4oBXwJKtLw9NHLNF3qlQZMUcaE01 Y8b2ZLvS7it9R/r2jT+TMCdkh1T0qKXL0/6JAZ+E2gckUAx9C76+1tJfCPYEADcA 7tYrQCU4AD3LAlLR/izuvsWsoqKriptkbLbDwTTp1+LM+BGbdQeUeTAkr6zJCpdl 7GJwiBqbC9Uqe3AvNbWTAwsG/aNlTNY+VuVXXdKpo/RC35K/0vlZY4rDwqIuQQ/M Kptge3fXRLyDaVhi+ww30F2/f19Wx8gjNNLv6rDhtoLDguhZY4wSwImGSHX3WKu4 EwIDAQAB -----END PUBLIC KEY-----
Other variants
  • Zate Ransomware (.zate encrypted files)
  • Zatp Ransomware (.zatp encrypted files)
  • Bozq Ransomware (.bozq encrypted files)
  • Fatp Ransomware (.fatp Files) - What is it? Keep Your Privacy Well

    Fatp ransomware is a โ€œclassicโ€ example of ransomware infection. This virus penetrates your PC, encrypts the files, and then asks you to pay money for its decryption. The average amount of ransom is $980. In addition, fraudsters threaten you that your files will be deleted or that your files will not be decrypted. The only thing that matters is that it changes many of your system settings.

    Malware alters your systemโ€™s configurations to make it weaker and prevent the early detection of virus injection. In addition, the virus blocks the Microsoft Defender (it just becomes inactive) and restricts the launch of antivirus software installation files. These changes must be reverted as soon as possible because you will also struggle to install other programs.

    Fatp ransomware encrypts your files with a robust ciphering algorithm - Salsa20. This algorithm is typical for all other STOP/Djvu ransomware family members. It is likely impossible to hack that cipher in common ways - this encryption algorithm means 1.158x10^77 (78-digit number) of possible decryption keys. Brute forcing will take more than two unvigintillion years.

    Encryption process

    The Fatp ransomware uses the Salsa20 encryption algorithm. That is not the strongest method, but it still provides an overwhelming amount of possible decryption keys. To brute force the 78-digit number of keys, you need 3.5 unvigintillion years (1*10^65), even if you use the most powerful regular PC. Quantum computers can show a bit better results, but it is still too slow to get your files back while you are alive.

    The exact algorithm of encryption is next: malware scans each folder for the files it is able to encrypt. Then, when it finds the target, it makes a copy of your file, removes the original one, encrypts the copy and leaves it instead of the removed original. Such a procedure is done to prevent the situation when you have already opened the file, so ransomware is not able to read it because of the Windows restrictions. To each encrypted copy, the virus adds the specific extension - ".fatp". Then, ransomware creates a _readme.txt file in the folder where the encrypted file is located, and goes to the next folder.

    .FATP Files

    Such an encryption method can be exploited for file recovery. Since the original file is deleted, you may try to recover it using the file recovery tools. The less time is passed - the bigger the chance to get your files back, so hurry up!

    Another specific moment that can help you to use the files even after the encryption is the fact that Fatp ransomware encrypts only the first 150KB of each file. Hence, you can try to run a big file, such as video or music, without the encryption. Similar feature also works with other ransomware families - Dharma, Conti and Makop encrypt the same 150KB.

    Ransom note: _readme.txt

    Ransom note is the same for the whole ransomware family. In fact, it is one of the main signs of to which family the certain ransomware belongs. Here is the typical note for STOP/Djvu family:

    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:
    https://we.tl/t-4wOUlYSwGo
    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:
    [email protected]

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    Indicators of Compromise(IOC)

    File NameMD5File Size
    ๐Ÿ“œ SAMPLE.EXE3c160e504076c690b7a1f577d703e665729600
    ๐Ÿ“œ SAMPLE.EXE3e264c34afbd4a6a10ea1931023846bf729088
    ๐Ÿ“œ SAMPLE.EXE1195113a1b6399f0fae76f809526a6c6729088
    ๐Ÿ“œ SAMPLE.EXE709b1942cf3e72377360b756160b747c729088
    ๐Ÿ“œ SAMPLE.EXE2391465ff49f63a1e3d0f706780a75ec729088
    ๐Ÿ“œ SAMPLE.EXEbc61264ac2c5e2665df415cb70a1326a728576
    ๐Ÿ“œ SAMPLE.EXE5a2391b77f51ac80fbaa3bc1fae75010729600
    ๐Ÿ“œ SAMPLE.EXE6c555735096ea462b10873f54d7a21f7728576
    ๐Ÿ“œ SAMPLE.EXEdd48e3880d41cd5bbf59aa4e4a178196729600
    ๐Ÿ“œ SAMPLE.EXE0f9e2b0273b5b50ba6dcc106e0223666728064