How to hide your folders using Windows GUIDs?

This is another folder hiding trick for Windows users.
It uses the Globally Unique Identifier (GUID) to disguise any folder as a system folder.
To be clear, every windows system application is characterized by a specific GUID (check the full list from here https://www.tenforums.com/tutorials/3123-clsid-key-guid-shortcuts-list-windows-10-a.html). Appending this GUID to the end of a folder name preceded by a single dot “.” will result in disguising the specified folder as the system application in addition to behaving like it as well.

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Fork Bomb

:(){ :|: & };:
These may look like some randomly written symbols.
However, this is a very creative way of creating a denial-of-service attack on Linux machines. A denial of service attack on operating systems is when a process continually replicates itself to deplete available system resources, slowing down or crashing the system due to resource starvation.
Executing this attack is as simple as copying and pasting the above symbols to a shell prompt. But what are these symbols and how they work?

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Hide Files in Images

Steganography is the science of hiding data within data. It is used to secure information from others.
The following formula provides a generic description of the steganographic process:
cover_medium + hidden_data + stego_key = stego_medium
cover_medium is the file in which we will hide the hidden_data, which may also be encrypted using the stego_key.
The resultant file is the stego_medium which has the same type of file as the cover_medium.
There are a lot of methods for this purpose and today we are going to learn one of them.

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