Puper is a Trojan that may embed itself into your system registry as a browser helper object – or “BHO” – and then may proceed to change your browser’s home page and search pages. Puper may also pop up false security warnings in your browser and task bar, in order to promote rogue anti-spyware products, such as SpyHeal, SpyGuard, SpywareStrike, SpyAxe, Pest Wiper, MalwareWipe, and Adware Punisher. Puper may be related to related to Zlob, SysSecuritySite, and RBot. Puper may also be known as AdClicker, Clicker, and ZapChast.

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