10-02-2012, 11:59 AM
zombie computers
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What are Bots
Bots are automated scripts that are designed to perform specific operations
Good bots are used for housekeeping functions in networks such as robotic helpers in instant-messaging systems.
Malicious bots, however, open up a victim's machine to remote access.
What is a Zombie Computer
A Zombie computer is a computer attached to the internet that has been compromised by a hacker,a computer virus or a trojan horse
Generally, a compromised machine is only one of many in a botnet, and will be used to perform malicious tasks of one sort or another under remote direction
Most owners of zombie computers are unaware that their system is being used in this way
Because the owner tends to be unaware, these computers are metaphorically compared to zombies.
Intrusion Prevention Systems
Network Intrusion-prevention systems (NIPS) are purpose-built hardware/software platforms that are designed to analyze, detect, and report on security related events.
NIPS are designed to inspect traffic and based on their configuration or security policy, they can drop malicious traffic
Intrusion-prevention system (IPS) could detect and block denial of service attacks;