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Guarding against intrusion attempts

How Norton Personal Firewall protects against network attacks

Norton Personal Firewall monitors communications

When Norton Personal Firewall is active, it monitors communications among your computer and other computers on the Internet. It also protects your computer from such common security problems as:

Improper connection attempts

Trojan horses

Security and privacy incursions by malicious Web content

Port scans

Intrusions

Warns you of any connection attempts from other computers and attempts by programs on your computer to connect to other computers

Notifies you when your computer encounters destructive programs that are disguised as something useful

Monitors all Java applets and ActiveX controls and lets you choose whether to run or block the program

Cloaks inactive ports on your computer and detects port scans

Detects and blocks malicious traffic and attempts by outside users to attack your computer

See “Customize firewall protection” on page 72.

You can control the level of protection that Norton Personal Firewall provides by using the Security Level slider. You can also control how Norton Personal Firewall reacts to improper connection attempts, Trojan horses, and malicious Web content.

Intrusion Detection analyzes communications

Intrusion Detection scans each packet that enters and exits your computer for attack signatures, arrangements of information that identify an attacker’s attempt to exploit a known operating system or program vulnerability.

Norton Personal Firewall protects your computer against most common Internet attacks, including the following.

Bonk

RDS_Shell

WinNuke

An attack on the Microsoft TCP/IP stack that can crash the attacked computer

A method of exploiting the Remote Data Services component of the Microsoft Data Access Components that lets a remote attacker run commands with system privileges

An exploit that can use NetBIOS to crash older Windows computers

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HP Norton Personal Firewall 2003 manual Norton Personal Firewall monitors communications