The attack
is geared to impede the availability of the resource to the authorized user by crashing the system or
slowing it down to the point where it is unusable. Common examples of DoS attacks include TCP SYN
floods, ICMP ping floods, and buffer overflow, to name a few.
A typical attack pattern consists of gaining access to a user account, escalating privilege, exploiting the victim's
system, or using it as a launch platform for attacks on other systems or sites.
Attack Vectors
Attack vectors are routes or methods used to get into computer and network systems to leverage unexpected
openings for misuse. Attack vectors can be generally classified as follows:
Viruses: A virus is a malicious software program or piece of code that causes an unanticipated negative
event and usually is capable of causing damage to data or other programs on the infected system.
Worms: A computer worm is a self-replicating malicious software program, similar to a computer virus.
Worms are viruses that can reside in the active memory of a system and are capable of self-duplicating
and self-propagating from one computer system to the next over a network. Worms are often designed to
exploit the file transmission capabilities, such as e-mail found on many computer systems.
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