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Home > Cybersecurity > LockBit ransomware is now targeting Linux servers

LockBit ransomware is now targeting Linux servers

Trend Micro announced that a new version of LockBit, named LockBit Linux-ESXi Locker version 1.0 is targeting Linux servers.


Erdem Yasar Erdem Yasar
January 25, 2022
2 min read
LockBit ransomware is now targeting Linux servers

Enterprise security software developer, Trend Micro announced that they are monitoring a new ransomware version named LockBit Linux-ESXi Locker version 1.0 that targets Linux servers. The announcement for the ransomware was made in an underground forum, “RAMP” in October 2021. Trend Micro also stated that the company detected this variant in the wild. 

Combination of AES and ECC algorithms

The new version uses a combination of Advanced Encryption Standard and elliptic-curve cryptography algorithms to encrypt the victim’s data. LockBit Linux-ESXi Locker version 1.0 also has logging capabilities allowing it to log:

  • Processor information
  • Volumes in the system
  • Virtual machines (VMs) for skipping
  • Total files
  • Total VMs
  • Encrypted files
  • Encrypted VMs
  • Total encrypted size
  • Time spent for encryption

The ransomware also contains commands to encrypt VM images hosted on ESXi servers:

vm-support –listvms: Obtain a list of all registered and running VMs  

esxcli vm process list: Get a list of running VMs  

esxcli vm process kill –type force –world-id: Power off the VM from the list  

esxcli storage filesystem list: Check the status of data storage  

/sbin/vmdumper %d suspend_v: Suspend VM  

vim-cmd hostsvc/enable_ssh: Enable SSH  

vim-cmd hostsvc/autostartmanager/enable_autostart false: Disable autostart  

vim-cmd hostsvc/hostsummary grep cpuModel: Determine ESXi CPU model

A ransom note of the Linux-ESXi version of LockBit a

The ransom note includes the leak sites where the hackers threaten to publish the stolen data if the company refuses to pay the ransom. The hacker group also claims to spend millions of dollars to the employees who are willing to sell their accounting data for access to any company by launching the virus on a computer in their company. Trend Micro says,

« ESXi offers organizations an easier way to manage their servers. But ransomware operators are also mirroring the transition of organizations to platforms such as ESXi. This development adds LockBit to the list of ransomware families capable of targeting Linux hosts in general and the ESXi platform in particular.

While Linux versions are typically harder to detect, implementing security best practices can still help organizations minimize the possibility of a successful attack. In the case of LockBit, keeping systems up to date can prevent intrusions. This is because LockBit has been known to use access credentials stolen from vulnerable servers and sold in the cybercriminal underground. »

See more Cybersecurity News


Tags: Trend Micro
Erdem Yasar

Erdem Yasar

Erdem Yasar is a news editor at Cloud7 News. Erdem started his career by writing video game reviews in 2007 for PC World magazine while he was studying computer engineering. In the following years, he focused on software development with various programming languages. After his graduation, he continued to work as an editor for several major tech-related websites and magazines. During the 2010s, Erdem Yasar shifted his focus to cloud computing, hosting, and data centers as they were becoming more popular topics in the tech industry. Erdem Yasar also worked with various industry-leading tech companies as a content creator by writing blog posts and other articles. Prior to his role at Cloud7 News, Erdem was the managing editor of T3 Magazine.

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