The notorious REvil ransomware has refined its assault vector as soon as again to transform the victim’s login password in purchase to reboot the computer system into Windows Risk-free Mode.
Even though destructive groups are generally updating their assault methodology to counter protection actions, the danger actors behind the REvil ransomware are particularly adept at honing their malware to make their assault campaigns additional economical. Security researchers recently accused REvil of targeting Acer’s back workplace desktops, demanding a document $fifty million ransom.
Just final month protection researchers learnt of REvil’s new methodology that enabled the danger actors to encrypt their victim’s file by rebooting into the Windows Risk-free Mode.
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Not-so-Risk-free Mode
Scientists believed this new assault strategy was made as a means to bypass detection by Windows protection mechanisms as very well as any other protections utilized by the person.
The Risk-free Mode also ensured the ransomware would not be interrupted by processes with increased privileges this kind of as backups, and servers.
Despite the fact that that is fairly a novel strategy, it relied upon someone to manually reboot Windows into the Risk-free Mode. The new variations as claimed by Bleeping Computer system nevertheless automates the method.
The most current variation of the ransomware will first transform the person password, reportedly to DTrump4ever, and then reconfigure a few registry values to help Windows to routinely login with the updated authentication info.
By way of: BleepingComputer