Security Market Segment LS
Wednesday, 03 July 2019 08:59

New Golang malware uses multiple methods to infect Linux servers

New Golang malware uses multiple methods to infect Linux servers Image by Лечение Наркомании from Pixabay

Researchers at security outfit F5 Labs say they have found Golang-based malware that attacks Linux servers through a variety of methods.

The six methods are are exploits targeting Web applications — two targeting ThinkPHP, one each targeting Drupal and Atlassian's Confluence — enumeration of SSH credentials or enumeration of credentials for the open-source in-memory data structure store Redis. The malware then uses the computing power on the server for mining the monero cryptocurrency.

Once the malware has gained access, it attempts to spread by using SSH keys on the server it has infected.

The malware, which F5 did not name, takes advantage of vulnerabilities in ThinkPHP, Drupal or Atlassian's Confluence once it has gained entry to the server.

Harsh Chawla, Remi Cohen and Andrey Shalnev said in a blog post that they seen the first appearance of this malware on 10 June and the exploit requests came through six days later.

The malware uses several sets of hardcoded credentials to try and guess its way into the servers.

"Malicious actors are beginning to turn to Golang as a malware language since it is not typically picked up by antivirus software," the trio wrote.

"Although the language is about 10 years old, and is used by many legitimate programmers, there has not been as much activity with Golang malware."

Redis is generally not part of any Linux distribution and has to be installed from third-party repositories. It runs on OS X as well and is developed on both Linux and OS X. It is not officially supported on Windows but Microsoft develops and maintains a Win-64 port.

The main aim of the malware is to mine monero but it also has methods to ensure persistence and avoid detection.


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Sam Varghese

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.



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