Pop up ads are of three different categories namely pop-ups created by spyware and adware, messengers service advertisement and general browser pop-ups. Pop-ups ads occasionally appear on the screen and interfere with the user s ability to view the contents displayed on the screen. The user can easily avoid these advertisements by installing a pop-up blocker.
Messenger service advertisement:These types of pop-ups are applicable only for Windows XP and Windows 2000. They usually occur because someone is accessible to your computer network and is can transmit this message to your computer through TCP and UDP ports. It is the responsibility of the messenger service to transmit these messages. For controlling these pop-ups, the security has to be hardened by installing firewall software like zone alarm or by installing Windows XP which puts off messenger service by default and activates the windows firewall. The port which facilitates the transmission of these messages gets blocked.
For activating firewall in Windows XP, click the Start icon on the desktop, press Run and type the word Firewall.cpl, select the on button lick OK. It is recommended not to connect to the internet before activating the Firewall because there is a risk of computer getting infected.
Pop-ups created by adware and spyware:The function is same as the general browser but spyware is usually run by the browser assistant object which is the activeX controls that connects to the internet explorer and gets in touch with their server without the user knowing it. This can also be a cause of leaking the user s confidential information to the spies as well as wasting the internet bandwidth. In relation with this, any outgoing connection without the user s authorization should be taken as threat to the security of the user. For preventing pop-ups that are generated by adware and spyware, anti-spyware application such as spyware blaster, Ad-Aware, Spybot Search and destroyer should be installed in the computer. They are just the same like the anti-virus software. These applications work by employing the services of the folders of the hosts for preventing unnecessary ads servers and sites that are responsible for conveying these ads, they also increase the security settings of the browser.
Applications like Sygate and Zone Alarm will always signal the user every time when an outgoing traffic is detected. This will enable the user to block Trojans and dialers from reaching the internet. It will also give the user same attentions to the settings of the firewall, it can be assumed as the passage security and operates only with programs that are needed to be assessable to the internet. This point will make the user be able to investigate the performance of the firewall being employed to the websites. They will do a thorough checking of the system for accessible ports and weaknesses, therefore they will accordingly advise the user.
General Guidelines that should be followed:- The system should not be connected to the internet before activating Anti-virus and firewall.
– The security configurations should be amplified in the browser so that the Activex control is blocked from installing automatically.
– The system should be always updated by seeking latest information online or by subscribing to Microsoft Security Bulletin in order to be aware of the possible threat.
– The services of the HOSTS folder should be employed for preventing unwanted websites.