Mac users are now exposed to a brand-new “EvilQuest” ransomware that secures files and triggers multiple problems to the os. Malwarebytes has evaluated the ransomware today, which is being dispersed through macOS pirate apps.
The harmful code was initially found in a pirate copy of the Little Snitch app available on a Russian forum with torrent links. The downloaded app includes a PKG installer file, unlike its initial version.
By examining this PKG file, Malwarebytes discovered that the app includes a “postinstall script,” which is usually utilized to tidy up the installation after the process is completed. In this case, nevertheless, the script executes a malware to the macOS.
The script file is copied to a folder related to the Little Snitch app under the name CrashReporter, so the user will not notice it running in the Activity Monitor since macOS has an internal app with a comparable name. The set place is:/ Library/LittleSnitchd/CrashReporter.
Malwarebytes keeps in mind that it spends some time before the ransomware begins working after it’s installed, so the user won’t associate it with the most recent app installed. When the harmful code is triggered, it customizes system and user files with unidentified encryption.
Part of the encryption causes the Finder not to work properly and the system crashes constantly. Even the system’s Keychain gets corrupted, so it’s impossible to gain access to passwords and certificates minimized the Mac. A message on the screen states the user must pay $50 to recuperate its files, otherwise whatever will be erased after 3 days.
There’s still no chance to get rid of malware after it has secured the files, so users should keep an updated backup of whatever.
The finest way of avoiding the consequences of ransomware is to keep a good set of backups.
Although the ransomware is only consisted of with pirated apps for now, Apple needs to repair this security flaw as rapidly as possible because this malicious code can be included in more apps.
You can find out more technical details about EvilQuest on Malwarebytes’ site.
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