REvil ransomware’s new Linux encryptor targets ESXi virtual machines

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The REvil ransomware procedure is currently utilizing a Linux encryptor that targets as well as secures Vmware ESXi virtual machines.

With the venture transferring to virtual machines for simpler back-ups, gadget monitoring, as well as reliable use sources, ransomware gangs progressively produce their very own devices to mass secure storage space made use of by VMs.

In May, Advanced Intel’s Yelisey Boguslavskiy shared a blog post from the REvil procedure where they validated that they had actually launched a Linux variation of their encryptor that can likewise work with NAS gadgets.

Today, safety and security scientist MalwareHunterTeam discovered a Linux variation of the REvil ransomware (also known as Sodinokibi) that likewise shows up to target ESXi web servers.

Advanced Intel’s Vitali Kremez, that evaluated the new REvil Linux alternative, informed BleepingComputer it is an ELF64 executable as well as consists of the very same arrangement choices used by the much more typical Windows executable.

Kremez mentions that this is the initial well-known time the Linux version has actually been openly readily available considering that it was launched.

When carried out on a web server, a hazard star can define the course to secure as well as make it possible for a quiet setting, as revealed by the use directions listed below.

Usage instance: elf.exe-- course/ vmfs/-- strings 5.
without-- course secures present dir.
-- quiet (- s) utilize for not quiting VMs setting.
!!! BY DEFAULT THIS SOFTWARE USES 50 THREADS!!!

When carried out on ESXi web servers, it will certainly run the esxcli command line device to provide all running ESXi virtual machines as well as end them.

 esxcli-- formatter= csv-- format-param= areas= ="WorldID,DisplayName" vm procedure checklist|awk -F "" *,"*"' {system("esxcli vm process kill --type=force --world-id=" $1)} '.

This command is made use of to shut the virtual device disk (VMDK) submits saved in the/ vmfs/ folder to ensure that the REvil ransomware malware can secure the documents without them being secured by ESXi.

If a virtual device is not properly shut prior to securing its data, it can bring about information corruption, as discussed by Emsisoft CTO Fabian Wosar

By targeting virtual machines by doing this, REvil can secure lots of web servers at the same time with a solitary command.

Wosar informed BleepingComputer that ransomware procedures, such as Babuk, RansomExx/Defray, Mespinoza, GoGoogle, DarkSide, as well as Hellokitty have actually likewise produced Linux encryptors to target ESXi virtual machines.

“The reason why most ransomware groups implemented a Linux-based version of their ransomware is to target ESXi specifically,” stated Wosar.

File hashes related to the REvil Linux encryptor have actually been accumulated by safety and security scientist Jaime Blasco as well as shared on Alienvault’s Open Threat Exchange.

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