: Hidden backdoors that give remote access to your machine.

The user, tired of a sluggish system and the constant pop-ups of the free version, had gone looking for the "PRO" experience without the price tag. Official versions from the CCleaner site are distributed as .exe installers, but this file, found on a forgotten forum, promised the world in a compressed box. The Shadow of the Past

: Replacing one set of annoying pop-ups with a much more aggressive variety. Keyloggers : Silently recording passwords as you type them. The Safer Path