Cyber Security

What is Egrego Ransomware?

Egrego ransomware is a type of malware that encrypts all the files in a computer until the user pays a ransom. The files encrypted by Egrego will have a Random extension (e.g., ".JhWeA") extension appended at the end of the file name. Egrego is delivered through a Win32 DLL file and has been spotted inside the following files and processes: ['260828.dll', 'b.dll']

What is ransomware?

Ransomware is a type of malware that encrypts a user’s files, making them inaccessible, and demands a ransom payment to restore access. The most common type of ransomware is known as “crypto-ransomware,” which encrypts files and demands a ransom payment to decrypt files.

How Does ransomware Spread?

Ransomware can come from a variety of sources. These include but are not limited to phishing emails, malicious links, social engineering tricks, and other social engineering attacks. Once ransomware is installed on a device, it can spread to other devices on the same network. This is done by either sharing the ransomware with other devices on the same network or by spreading it to other devices on the internet. Once ransomware is in place and running, it can start encrypting files on the machine, blocking the legitimate user from accessing their own data.

Egrego ransomware Capabilities:

Egrego ransomware may use process injection techniques to evade process-based defenses as well as to elevate privileges. By injecting code into other processes, Egrego may access those processes' memory, system/network resources, and possibly elevated privileges. This may also help to evade detection from security products. Additionally, Egrego ransomware may use redirected/tunneled protocols such as Serial over LAN to communicate with infected hosts. Egrego ransomware may use System Information Discovery techniques to gather detailed information about the target system, including operating system version, patches, and architecture.

Mitigations Against Egrego ransomware:

Egrego ransomware can be mitigated by some endpoint security solutions that can be configured to block process injection. Endpoint security solutions that include behavior-based detection can detect and block Egrego ransomware.Egrego ransomware can also be blocked through the use of application whitelisting. Regular backups can help protect against data loss in the event of an Egrego ransomware attack. You can also filter network traffic to prevent the use of unnecessary protocols.

How to Remove Ransomware?

There are several ways to remove ransomware from your computer. If you have antivirus software installed, it should have an option to remove the malware from your computer. In some cases, you may have to restore your computer to an earlier date. If you don’t have antivirus software installed, you can download one from the internet or use a computer that does have an antivirus installed. Another way to remove ransomware is to try to restore your computer to an earlier date. Lastly, you can try searching for a decryptor online for that target’s Egrego ransomware or it’s specific strain.

How to Protect Against Ransomware?

There are several ways to protect yourself from ransomware. The best way to protect yourself from ransomware is to prevent it from happening in the first place. The best prevention is awareness. There are three things people should know about ransomware to help protect themselves:

  1. Don't click on anything you don't trust.
  2. Make sure you back up your computer and keep a copy of your backup files in a separate location.
  3. Make sure your antivirus software is up to date.
  4. Keep your software up-to-date.
  5. Use a reliable security suite with a firewall and antivirus.
  6. Never download files from untrusted sources. 
  7. Don't open email attachments from strangers. 
  8. Use caution when visiting suspicious websites.
  9. Update your passwords on a regular basis
  10.  Use caution when clicking on links
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