uCertify Articles » SY0-101 http://www.ucertify.com/article Just another WordPress weblog Wed, 04 Nov 2009 00:00:00 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 What is Trojan horse? http://www.ucertify.com/article/what-is-trojan-horse-2.html http://www.ucertify.com/article/what-is-trojan-horse-2.html#comments Wed, 19 Aug 2009 00:00:00 +0000 uCertify 1301109

Trojan horse is a malicious software program code that masquerades itself as a normal program. When a Trojan horse program is run, its hidden code runs to destroy or scramble data on the hard disk. An example of a Trojan horse is a program that masquerades as a computer logon to retrieve user names and password information. The developer of a Trojan horse can use this information later to gain unauthorized access to computers. Trojan horses are normally spread by e-mail attachments. Unlike viruses, Trojan horses do not replicate themselves but only destroy information on hard disks.

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Dictionary attack is a type of password guessing attack. This type of attack uses a dictionary of common words to find out the password of a user. It can also use common words in either upper or lower case to find a password. There are many programs available on the Internet to automate and execute dictionary attacks.

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Wireless Transport Layer Security (WTLS) is a security layer of WAP, which is specifically designed for a wireless environment. It provides privacy, data integrity, and authentication for client-server communications over a wireless network. WTLS ensures that a client and server are authenticated so that wireless transactions remain secure and the connection is encrypted. WTLS is required because a wireless network does not provide end-to-end security.

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Active detection is a type of intruder detection in which a system takes automatic actions when it recognizes an attack. It can terminate unauthorized connections, processes, or sessions. Active detection can also launch a counterattack against an intruder.

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Wireless Transport Layer Security (WTLS) is a security layer of WAP, which is specifically designed for a wireless environment. It provides privacy, data integrity, and authentication for client-server communications over a wireless network. WTLS ensures that a client and server are authenticated so that wireless transactions remain secure and the connection is encrypted. WTLS is required because a wireless network does not provide end-to-end security.

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Active detection is a type of intruder detection in which a system takes automatic actions when it recognizes an attack. It can terminate unauthorized connections, processes, or sessions. Active detection can also launch a counterattack against an intruder.

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Trojan horse is a malicious software program code that masquerades itself as a normal program. When a Trojan horse program is run, its hidden code runs to destroy or scramble data on the hard disk. An example of a Trojan horse is a program that masquerades as a computer logon to retrieve user names and password information. The developer of a Trojan horse can use this information later to gain unauthorized access to computers. Trojan horses are normally spread by e-mail attachments. Unlike viruses, Trojan horses do not replicate themselves but only destroy information on hard disks.

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Dictionary attack is a type of password guessing attack. This type of attack uses a dictionary of common words to find out the password of a user. It can also use common words in either upper or lower case to find a password. There are many programs available on the Internet to automate and execute dictionary attacks.

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A password guessing attack occurs when an unauthorized user tries to log on repeatedly to a computer or network by guessing usernames and passwords. Many password guessing programs that attempt to break passwords are available on the Internet. Following are the types of password guessing attacks:

  • Brute force attack
  • Dictionary attack
Share/Bookmark]]> http://www.ucertify.com/article/what-is-password-guessing-attack.html/feed 0 What is passive detection? http://www.ucertify.com/article/what-is-passive-detection.html http://www.ucertify.com/article/what-is-passive-detection.html#comments Mon, 22 Jun 2009 00:00:00 +0000 uCertify 1301137

Passive detection is a type of intruder detection that involves logging network events to a file for an administrator to review later. The administrator analyzes the log to determine whether or not the attack is legitimate and then decides on how to respond to it.

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