As what the victim posted on the forum, systweak.com comes from a rogueware - Regclean Pro. This, again, proves the fact that any infiltration will introduce in additional infections or incur additional infections in another way.
Systweak.com has recently plagued many PC users who haven’t found an efficacious solution yet where system restore, browser reset and scan by anti-virus programs fail to remove systweak.com pop-ups that have been reported to arouse .dll/.exe problems and chaos on the target computer:
