spot_img

Researchers Uncover First Use Of Log4Shell Flaw In Attack

Share post:

BitDefender recently discovered the first ransomware family installed directly through Log4Shell exploits. In their statement, the researchers pointed out that the exploit downloads a Java class, which is loaded and executed by the Log4j application.

After it was loaded, it would download a .NET binary from the same server to install new ransomware known as Khonsari.

While the name appears as an extension for encrypted files, it is also used in the ransom note. Since a public exploit was released for Log4Shell, attackers have been scrambling to exploit the vulnerability.

The vulnerability allows attackers to easily identify vulnerable devices or execute code supplied by a remote site.

Giving details on the Khonsari ransomware, Michael Gillespie explained that Khonsari uses valid encryption and is secure.

However, an irregularity observed in its ransom note does not offer room for how to reach the threat actor. This suggests that Khonsari may not be ransomware, but instead a wiper.

For more information, read the original story in BleepingComputer.

spot_img

SUBSCRIBE NOW

Related articles

Cyber Security Today, March 22, 2023 – ChatGPT4 is out, poorly-protected Linux servers are exploited, and more

ChatGPT4 is out, poorly-protected Linux servers are exploited, and more. Welcome to Cyber Security Today. It’s Wednesday, March 22nd, 2023. I’m Howard Solomon, contributing reporter on cybersecurity for ITWorldCanada.com and TechNewsday.com in the U.S. The new version of ChatGPT has been released. But if you were hoping that version 4 has made this tool safer

Only 9 per cent of Canadian firms are cyber mature: Cisco report

Only 15 per cent of companies around the world would have a mature cyber readiness, according to survey

Ferrari notifies customers of ransom demand

Exclusive car maker says some client contact information exposed in cy

Government backs down on document demand from Google, Facebook

Change meets criticism that demand for external communications is an invasion

Become a member

New, Relevant Tech Stories. Our article selection is done by industry professionals. Our writers summarize them to give you the key takeaways