Saturday, June 15, 2024

Avast releases a free decryptor for some Hades ransomware variants

Avast has released a decryptor for variants of the Hades ransomware known as ‘MafiaWare666’, ‘Jcrypt’, ‘RIP Lmao’, and ‘BrutusptCrypt,’ which can allow the victims of these ransomware strains to recover their files without paying the ransom.

The security firm discovered a bug in the encryption process implemented by the Hades ransomware that can be used to recover the files encrypted by some variants.

“We discovered a vulnerability in the encryption schema that allows some of the variants to be decrypted without paying the ransom. New or previously unknown samples may encrypt files differently, so they may not be decryptable without further analysis.” reads the post published by AVAST.

The experts pointed out that the Hades ransomware affected by the flaw did not exfiltrate any data from the victims. MafiaWare666, for example, is a ransomware strain written in C# which doesn’t contain any obfuscation or anti-analysis techniques. The malicious code encrypts files using AES encryption.

The malware samples analyzed by the researchers append the following extensions the the filename of the encrypted files:

  • .MafiaWare666
  • .jcrypt
  • .brutusptCrypt
  • .bmcrypt
  • .cyberone
  • .l33ch

Once the MafiaWare666 variant completes the encrypted process, it displays a window that provides payment instructions to the victims. The ransom price ranges from $50 to $300, although some of the older samples with different names demand up to one Bitcoin.

Victims of these variants can download the free decryptor from the Avast server along with instructions to use it.

The tool also allows victims that know a valid password for decrypting files, but that are not able to use the decryptor supplied by Hades, to tick the box in the above UI provided by the tool.

Recommended:  Hackers selling access to 576 corporate networks for $4 million

In case victims haven’t the password, they can use the Avast tool to crack it.

“Once the password is found, you can proceed to decrypt all the encrypted files on your PC by clicking “Next” concludes AVAST. ” On the final page, you can opt-in to backup your encrypted files. These backups may help if anything goes wrong during the decryption process. This option is on by default, which we recommend. After clicking “Decrypt” the decryption process begins. Let the decryptor work and wait until it finishes decrypting all of your files.”

Suggest an edit to this article

Cybersecurity Knowledge Base

Latest Cybersecurity News

Cybersecurity Academy



Stay informed of the latest Cybersecurity trends, threats and developments. Sign up for our Weekly Cybersecurity Newsletter Today.

Remember, CyberSecurity Starts With You!

  • Globally, 30,000 websites are hacked daily.
  • 64% of companies worldwide have experienced at least one form of a cyber attack.
  • There were 20M breached records in March 2021.
  • In 2020, ransomware cases grew by 150%.
  • Email is responsible for around 94% of all malware.
  • Every 39 seconds, there is a new attack somewhere on the web.
  • An average of around 24,000 malicious mobile apps are blocked daily on the internet.
ClosePlease login
Share the word, let's increase Cybersecurity Awareness as we know it
- Sponsored -

Sponsored Offer

Unleash the Power of the Cloud: Grab $200 Credit for 60 Days on DigitalOcean!

Digital ocean free 200

Discover more infosec

User Avatar
Steven Black (n0tst3)
Hello! I'm Steve, an independent security researcher, and analyst from Scotland, UK. I've had an avid interest in Computers, Technology and Security since my early teens. 20 years on, and, it's a whole lot more complicated... I've assisted Governments, Individuals and Organizations throughout the world. Including; US DOJ, NHS UK, GOV UK. I'll often reblog infosec-related articles that I find interesting. On the RiSec website, You'll also find a variety of write-ups, tutorials and much more!

more infosec reads

Subscribe for weekly updates