Hi, Rajendra Singh. Welcome to 2-Spyware.com forums.
Both
ICQ Bomber and
Internet Optimizer are malicious computer parasites. They must be immediately removed from the system!
ICQ Bomber affects ICQ users. It sends out loads of annoying instant messages to all your ICQ contacts or even those users you are not familiar with. In simple phrase, ICQ Bomber makes you a spammer.
Internet Optimizer is a browser hijacker, which changes default settings of Internet Explorer. From 2-Spyware.com
description of Internet Optimizer:
Internet Optimizer is a browser hijacker that changes Internet Explorer default error and search pages. The threat also displays unexpected pop-up advertisements, attempts to send advertising e-mail messages to all the contacts in the Microsoft Outlook address book and may track user Internet activity. Internet Optimizer can update itself via the Internet. It is installed by some other parasites. The threat runs on every Windows startup.
Needless to say that you have to remove this parasite too. To get rid of all these threats you need an advanced anti-spyware program. Most antivirus tools are unable to detect and eliminate them. Take a look on the 2-Spyware.com
list of reliable anti-spyware software and the
anti-spyware comparison table. Choose a remover (I suggest
Spyware Doctor,
Microsoft AntiSpyware or any other tool with a high rating), download it, scan your system with it and remove all the pests it will find. This will clean up your system.