2021 Linux Malware 
Tenable
OCTOBER 22, 2024
When Bash, a command interpreter used by Unix-based systems including Linux and macOS, processed this variable, it would execute the function, but also run the arbitrary commands appended after the function definition. Shellshock” quickly became one of the most severe vulnerabilities discovered, comparable to Heartbleed’s potential impact.
O'Reilly Media - Ideas
NOVEMBER 2, 2021
Kerla is a Linux-like operating system kernel written in Rust that can run most Linux executables. I doubt this will ever be integrated into Linux, but it’s yet another sign that Rust has joined the big time. library (UA-Parser-JS) installs crypto miners and trojans for stealing passwords on Linux and Windows systems.
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O'Reilly Media - Ideas
JANUARY 5, 2021
The attack came through malware planted in a security product from SolarWinds. Google’s FuschiaOS, a possible replacement for the Android’s Linux kernel, is now “ open for contributions.” The end of CentOS Linux ? CentOS may live on independently as Rocky Linux. The attack may well be the most serious in cyber-history.
Tenable
MARCH 14, 2025
Meanwhile, Tenable did a deep dive on DeepSeeks malware-creation capabilities. Medusa, a ransomware-as-a-service variant, has impacted 300-plus critical infrastructure organizations in sectors like healthcare, education and manufacturing since mid-2021, according to the advisory, which is titled #StopRansomware: Medusa Ransomware.
Lacework
JULY 15, 2022
This ancient technique has found its place in the world of malware, namely hiding malicious code within other files including image formatted files ( T1027.003 ). General indicators and signatures for steg malware are provided in the hunting section. Steg malware is uncommon relative to other malware. Malware Details.
Prisma Clud
JUNE 22, 2023
Using WildFire in 2021 to analyze malicious files, our threat research team discovered a 73% increase in Cobalt Strike malware samples compared to 2020. The speed, volume and sophistication of modern malware attacks has made them more difficult to detect.
Tenable
SEPTEMBER 7, 2021
CVE-2021-26084. CVE-2021-26084 is an Object-Graph Navigation Language (OGNL) injection vulnerability in the Atlassian Confluence Webwork implementation. Thousands of Confluence Servers are vulnerable to CVE-2021-26084. CVE -2021-26084 is a critical severity remote code execution vulnerability affecting Atlassian Confluence.
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