Question

Write short note on Logic Bombs.

Answer 1

A logic bomb is a piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met. For example, a programmer may hide a piece of code that starts deleting files (such as a salarydatabase trigger), should they ever be terminated from the company.

Software that is inherently malicious, such as viruses and worms, often contain logic bombs that execute a certain payload at a pre-defined time or when some other condition is met. This technique can be used by a virus or worm to gain momentum and spread before being noticed. Some viruses attack their host systems on specific dates, such as Friday the 13th or April Fools' Day. Trojans that activate on certain dates are often called "time bombs".

To be considered a logic bomb, the payload should be unwanted and unknown to the user of the software. As an example, trial programs with code that disables certain functionality after a set time are not normally regarded as logic bombs.


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Answer 2

Short note on Logic Bombs is as follows:

• A malicious piece of code that is inserted into an Operating System or a simple Software Application can be called a Logic Bomb.
• It gets activated after a certain amount of time, or when specific conditions are met.
• Use of Logic Bombs are common with worms, Trojan horses and viruses. These are generally created by hackers and criminals to perform acts to threaten network security.
• It's a really tricky thing and generally hard to detect. However, once detected, proper security measures need to be taken as soon as possible.