Hacking: Computer Hacking Beginners Guide [PDF]

Summary
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Hacking: Computer Hacking Beginners Guide Book

Here, we are going to see how we can filter out all types of characters. This is important as in most cases, people tend to type in certain characters such as asterisk signs, exclamation marks, symbols for a British pound, etc. as passwords, and these symbols in most cases are obtained by the combination of two or more keys.

Filtering will enable our Keylogger to recognize when such keys are pressed by a user. We need to deal with these things however, the big question is HOW? Well think of it these ways, what will you press on your keyboard to get the exclamation mark? Depending on the keyboard you use, however for the exclamation mark it is quite universal; Shift 1 will give you that.

We need to make a statement, which will recognize the state of the shift key and if the shift key is pressed and the value, which follows after, is the ASCII value of the number 1 on the keyboard, please don’t record 1, record “exclamation mark” instead.