this post was submitted on 22 Jul 2024
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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CrowdStrike Falcon is XDR product, there is hundreds of similar products available.
The role of XDR is to detect and block if some bad actor is trying to do something malicious in the machine. Old school virus signature detection is not enough anymore, you need pattern detection from network communication/DNS queries etc.
When corporation has thousands of devices to monitor the OS each of those devices Is not relevant. You need to detect if some random user logs to some Linux info display thousand kilometers away, and starts scanning the network.
Because the detection and response, needs to happen near realtime, for example Incase of cryptolockers, where all devices are encrypted within seconds, the software blocking this needs kernel level access.
I work in critical infrastructure as IT, but luckily we did not use falcon