Abstract

In this paper, we have experimented different types of penetration techniques that are used to compromise computer networks. It also discussed different cases of attacking scenarios along with their behavior, severity, and countermeasures. The paper focuses on how insiders are being targeted by the attacker or involved in the malicious activity. The DoS, Probe, U2R, and R2L attacking tools are used in this experiment. As per recent studies, the insiders are the major source of a threat as compared to outsiders of a corporate network. The objective of this work is to create awareness related to information security among the employees of an organization to protect digital assets from intruders.