Friday, September 17, 2021

Skidmap: Cryptojacking malware hits Linux users

The Takeaway:

Security researchers have found that a sophisticated crypto-mining malware is out to hit Linux systems. This malware is hard to detect and keeps its activities under the radar. It can set up a master password which gives access to all accounts of users on the system.

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According to a Trendmicro report, crypto-mining malware Skidmap has hit Linux users. This new malware uses loadable kernel modules to sneak into Linux systems and keeps the crypto mining activity under the radar. According to the research, this malware exhibits the increasing complexity of recent cryptocurrency mining threats.

The malware hides its malicious activity by displaying fake network traffic stats. The attacker can use the malware to gain unfettered access to the affected system. Skidmap can also set up a secret master password that gives it access to any user account in the system. 

Threat analysts Augusto Remillano II and Jakub Urbanec explained that Skidmap goes to great lengths to disguise itself. It uses IP route module to hide key files and the Netlink rootkit to fake network and CPU statistics. The infection comes via the crontab process, and a script is used to download the Trojan.Linux.SKIDMAP.UWEJX malware. 

TrendMicro advised Linux users to adapt to best practices to avoid this malware. It is also recommended to keep the systems and servers updated and patched. Let us know in comments what do you think of this sophisticated malware.

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Disclaimer: The article reflects the opinions of the author and is not representative of Chaintimes’ views.
The article does not offer any investment advice. User discretion is advised when investing in or trading with cryptocurrency. Extensive and diligent research should be carried out by the reader before making a decision.

Cheng Wei Chan
Cheng Wei Chan
Cheng is an AI & APP Engineer based in Taipei City, Taiwan. After completing his graduation in Computer Science from National Taiwan University, he dedicated his life into researching and writing about technologies such as blockchain, cryptocurrency, artificial intelligence and application development.

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