July 2018
Beginner
552 pages
13h 18m
English
Content preview from Learn PowerShell Core 6.0
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Obfuscation
Obfuscation is a technique to create unreadable code to hide against logging and detection mechanisms, but still keep its functionality. Still, the problem with all antivirus scanners today is that they are mainly working with definition files. In scripting, it is easy to bypass these kinds of detections by using obfuscation techniques and executing code in a different manner.
A great project to create your own obfuscated scripts is Invoke-Obfuscation, written by Daniel Bohannon:
https://github.com/danielbohannon/Invoke-Obfuscation
Take a look at the following line of code:
#Obfuscated script.("{3}{1}{2}{0}" -f 'Host','ri','te-','W') ("{2}{1}{0}{8}{5}{9}{6}{4}{7}{3}" -f 'hell','owerS','P','uage','tic ','a fan','s','lang',' is ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.