Logic bomb programmed Virus

A logic bomb is a piece of code intentionally inserted into a computer program that remains hidden until one or more pre-programmed conditions are met, at which point a malicious action is executed. For example, a programmer can hide a piece of code that starts deleting files when he is fired from the company (in a database trigger, that is, a trigger; that is fired when the programmer’s active worker status changes) .

Software that is inherently malicious, such as computer viruses or worms, often contains logic bombs that run a program at a predefined time or when a certain condition is met. This technique can be used by a virus or worm to gain momentum and to spread before being noticed. Many viruses attack their host systems on specific dates, such as certain dates such as Friday the 13th, New Years, Halloween, etc.

These types of viruses can affect your computer in several ways:

▸Use of the machine for computer terrorism as a DDOS (Distributed Denial Of Service).

▸Sneaky destruction of a file from time to time to remain invisible for as long as possible.

▸Turn off the monitor.

▸Send an e-mail.

▸Clear hard drive information.

How the logic bomb works

Logic bombs, in general, are small pieces of source code that are usually included within other applications that are sent to the victim, in such a way that the end user does not realize that they have been infected, since at being completely inactive can go unnoticed by some security systems.

Once saved on the victims computer, these pieces of code wait until the execution time is reached and, once this time has arrived, the task for which the logic bomb is intended is executed, leaving the user practically defenseless against the attack. logical that takes place on your PC.

Most of the time, logic bombs are created by internal personnel of a company who, due to some discontent, leave this type of destructive software. As a warning and general rule to avoid these types of risks, write permissions on computer hard drives should be restricted in the case of having Linux.

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