The Malware Threat On Computer Network Security

Are you worried about attacks on your computer or network? Have you been infiltrated? Here is how some of these unwanted visitors get into your network.

Intruders often use other computers to launch attacks, and even disguise themselves as the intruded computer. Custom Malware is a pressing problem as far as network security problems are concerned. Targeted attacks, designed to be used against a single target, can avoid signature detection. Since the malware is custom designed to avoid any known signatures and has never been widely released, a signature for it will not exist and no signature detection mechanism will find it, whether in anti-virus software, intrusion detection software, or any other form. Malware can also be disguised from signature detection by using polymorphic tools that change the code constantly, creating a unique version with a unique signature each time the program is created. Polymorphic toolkits such as:ADMutate, PHATBOT, Jujuskins, TAPioN and CLET put this kind of functionality within the reach of the average skilled malware creator, if not the novice In another separate, but real-life example of stealthy malware, the Gozi trojan existed in the wild for over fifty days in the beginning of 2007, and it has been estimated that the first variant of it infected more than 5,000 hosts and stole account information for over 10,000 users. Gozi’s primary function was to steal credentials being sent over SSL connections before they were encrypted and add them to a database server that would dispense them on demand in exchange for payment. Had the malware author made a better choice of the packing utility used, the trojan may have gone much longer before being detected.

To ensure that your network is safe from intruders, have it checked by a competent computer network security services provider. For computer network security services in Sydney Australia, visit bsecure.com.au.

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