October 2018
Beginner to intermediate
436 pages
9h 36m
English
The Ultimate Packer for eXecutables, also known as UPX, can be downloaded from https://upx.github.io/. The tool itself can pack Windows executables. It is also able to restore or unpack UPX packed files. To see it in action, we used the tool on the file original.exe. This is shown in the following example:

Notice that the original file size reduced after being packed.
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