Entropy Ransomware May Have Links to the Dridex Gang
The Entropy Ransomware project has been active since November 2021. While this file-locker is not that widely spread, its attacks are typically very precise. The criminals appear to go after high-profile targets, and it would appear that they often spend months penetrating networks, and exfiltrating sensitive files before pulling the trigger. Just like other high-profile file-encryption Trojans, the Entropy Ransomware also uses two types of extortion. It threatens victims that they need to pay a ransom fee in order to unlock their data, as well as to prevent stolen files from being published online.
Is the Entropy Ransomware Linked to Other Popular Malware?
Researchers who were studying Entropy Ransomware came across some very interesting discoveries. While testing the efficiency of specific antivirus measures and rules, they noticed that the Entropy Ransomware was caught by the same detections used to stop the attack of the Dridex banking Trojan. This is likely to imply that the Entropy Ransomware shares some code similarities with the infamous Trojan. This is where we should add that the Dridex hackers were previously involved with multiple other ransomware families such as the Grief & DoppelPaymer Ransomware. There is a significant chance that the Entropy Ransomware might be a rebranded version of these file-lockers.
So far, the website that the Entropy Ransomware creators use to publish leaks has released the files and information of nine companies operating in various sectors. The criminals often demand hundreds of thousands of dollars from their victims and, understandably, few companies agree to these terms.
The Entropy Ransomware is likely to have compromised machines through the use of dated vulnerabilities, which were still active because the software of the systems was not patched. We advise our readers to prevent malware attacks by using up-to-date anti-malware tools, and applying all pending updates and patches to their operating system and software.
