Internet Optimizer Spyware – WSEM303.DLL

Wsem303.dll is a browser helper object that installs with a spyware program called Internet Optimizer (also referred to as DyFuCa). This Internet Optimizer variant hijacks both searches and error pages to it's controlling server. It also generates popup ads from it's controlling server.

We'd recommend removing this file. You can do so using WinPatrol or you can go to Control Panel > Add/Remove Programs and uninstall "Internet Optimizer" or "DyFuCa Active Alert".

Spyware

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