Home » News » FBI released master keys to decrypt all Gandcrab versions

FBI released master keys to decrypt all Gandcrab versions

The FBI has released master keys to decrypt files affected by Gandcrab ransomware versions 4, 5, 5.0.4, 5.1 and 5.2.

Using these keys, any user will be able to create and release his own GandCrab decoder.

A document published by the FBI entitled “Master Decryption Keys for GandCrab, versions 4 through 5.2” describes how GandCrab works.

Recall that in June, cybercriminals decided to complete their operation to spread GandCrab. According to the operators, their example should be followed by everyone who is related to the activities of GandCrab.

Also there are master keys.

“The FBI publishes decryption master keys to facilitate the development of additional tools for decrypting files affected by the ransomware. GandCrab operates within the ransomware-as-a-service business model (ransomware-as-a-service, RaaS). Cybercriminals- beginners can distribute the encrypter in exchange for 40% of the ransom”, — says the document.

Master key for GandCrab v4 and 5:

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

Master key for GandCrab v5.0.4 – v5.1:

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

Master key for GandCrab v5.2:

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

Also, the FBI has issued recommendations in order to avoid ransomware attacks or mitigate the consequences.

Recommended Ransomware Mitigations:

The FBI recommends undertaking measures to secure systems against ransomware infection and to mitigate the impact of ransomware.

  • Train personnel to identify phishing attempts and how to respond to them.
  • Implement a strong patch management system and enable automatic patching.
  • Implement auto updates for antivirus software.
  • Implement the principle of least privilege and strictly manage privileged accounts.
  • Implement a robust backup system and store backups offline
  • Implement strong authentication requirements for remote desktop protocol (RDP)
READ  In Oracle WebLogic is found vulnerability: specialist confirm that attacks through are ongoing
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