What are this keyloggers? what should we do if your system got infected by keyloggers? Is it keyloggers are good things or bad things? How to remove keyloggers from your system? Is there any different kinds of keyloggers out there? why keyloggers invented? These are all questions in my mind about keyloggers i studied and did some research about keyloggers for a long time now iam going to share those things with you. so keep reading.
What are keyloggers?
Keylogger is a software program or hardware device that is used to monitor and log each of the keys a user types into a computer keyboard.
Whats wrong with them?
Keyloggers are extremely dangerous and can be used to steal personal information such as your social security number, credit card number, and passwords to just about everything. This may lead to identity theft. Keyloggers are especially dangerous to anyone who uses online banking or online cash sites such as PayPal for a large amount of money.
Good thing about keyloggers
Keyloggers, as a surveillance tool, are often used by employers to ensure employees use work computers for business purposes only.
How keylogger programs work?
A keylogger is a program that runs in the background, recording all the keystrokes. Once keystrokes are logged, they are hidden in the machine for later retrieval, or shipped raw to the attacker. The attacker then peruses them carefully in the hopes of either finding passwords, or possibly other useful information that could be used to compromise the system or be used in a social engineering attack. For example, a keylogger will reveal the contents of all e-mail composed by the user. Keylogger is commonly included in rootkits.
A keylogger normally consists of two files: a DLL which does all the work and an EXE which loads the DLL and sets the hook. Therefore when you deploy the hooker on a system, two such files must be present in the same directory.
There are other approaches to capturing info about what you are doing.Some keyloggers capture screens, rather than keystrokes. Other keyloggers will secretly turn on video or audio recorders, and transmit what they capture over your internet connection.
A keyloggers might be as simple as an exe and a dll that are placed on a machine and invoked at boot via an entry in the registry.
Hardware based keyloggers
Hardware-based keyloggers do not depend upon any software being installed as they exist at a hardware level in a computer system. we connect this device with keyboard in hardware panel that attached with key bored wire.
Software based keyloggers
These are programs work on target system. we don't need any physical interaction with target system.These are classified in 5 types.
1)Hypervisor-based
2)Kernel based
3)API-based
4)Form Grabber based
5)Packet analyzers
What to do if i got infected with keyloggers?
When you suspect that you are infected with a keylogger, do NOT type any personal information. Even if you are typing in a normal word document, the keylogger still keeps track of everything you type.
If you desperately need to login to your Email or somewhere secure and password protected, there is one way to get around the keylogger.
Click on Start -> Go to All Programs -> Click on Accessories -> Select Accessibility ->Click on On-Screen Keyboard
Executing the above steps opens a keyboard on your screen so that you can click whatever letter you would like to type. Since a keylogger does not track where and what you click, this helps you to get around it in times of urgency. Typing with the on-screen keylogger is a great hassle. The only alternative is to eradicate the keylogger program completely from the computer.
How to remove keyloggers from your system?
Detecting a keylogger is not simple. It can be installed in over a 100 places on your computer, usually located in one of the system files. However, there is a much easier way to detect if a keylogger is running or not. Right click on your desktop’s task bar and click on Task Manager. Alternatively you can press Ctrl + Alt + Del simultaneously to open the Task Manager. Task Manager displays a list of all the applications currently executing on the computer. Click the tab that says Processes. This gives you information about all the programs, hidden and visible that your computer is currently running. If you got any unwanted process is running then click on end process on that particular processor.
Most of the keyloggers programs can be detected my pressing Ctrl + Alt+shift and try all functions key for f1 to f12 along.
This information is only for study porous. don't misuse this information. If your have any comments please feel free to comment. Thank you.
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