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Fake certificate updates distribute backdoor malware

According to new data, backdoor and trojan malware is distributed through a new one Phishing technique, trying to entice victims to accept one "Updating" certificates security website.

Certification Authorities (CAs) distribute SSL / TLS security certificates for improved security at Internet, providing encryption for one-to-one communication channels browser and one server.

Various cases of certificate abuse have been reported from time to time. But now, a new one is used Phishing technique for distributing malware.

On Thursday, its researchers Kaspersky mentioned the new technique has been identified in many sites. The first malware infections were identified on January 16, 2020.

Visitors to an infected domain see the following image:

The warning states that the site's security certificate is not up to date, but even though this is a domain owner issue, victims are called upon to install a “certificate update security" to move on.

The message is contained in an iframe and the content is loaded through one jquery.js script from a third-party command-and-control (C2) server, while the URL bar still holds the legitimate address domain, so that they don't understand users that something is wrong.

"The jquery.js script covers an iframe that is exactly the same size as the page," the researchers say. "As a result, instead of the original page, the user sees a seemingly authentic banner requesting the immediate installation of a certificate update."

If the victim presses the button to update, starts downloading a file, Certificate_Update_v02.2020.exe.

When installed, the executable file will deliver the victim one of two malware: Mokes or Buerak.

The Mokes is a macOS / Windows backdoor malware, considered "sophisticated", as it can execute malicious code, extract screenshots, steal information computer, such as archives, sounds and video, while using AES-256 encryption to cover its activities.

On the other hand, the Buerak is a Windows-based Trojan malware capable of executing code, violating procedures, stealing content and more.


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Absent Mia
Absent Mia
Being your self, in a world that constantly tries to change you, is your greatest achievement


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