Agent.A is a trojan-clicker that attempts to redirect infected machines to specified advertisement websites.

Generally, trojan-clickers redirect the user's machine to specified websites on the Internet. This is done to generate high hit counts on those specified websites as part of its advertising agenda. Trojan-clickers may also be used to cause Denial of Service attacks or may be used to link the user to infected or malicious websites.

Agent.A is a trojan-clicker that attempts to redirect infected machines to specified advertisement websites, which results in unwanted pop-up advertisements and banners displayed on the machine.

Generally, trojan-clickers redirect the user's machine to specified websites in the Internet. This is done to generate high hit counts on those specified websites as part of its advertising agenda.

Agent.A arrives on the system as an HTML script file in the Temporary Internet Files directory.

Upon execution, it will only display a blank web page to hide its actual content.

It attempts to bypass pop-up blockers such as the following:

Norton Internet Security popup blocker
Internet Explorer Popup blocker

It also adds the following cookie:

PayPopUpAds

This is used to track user's browsing habits.