Werbung http://cdn.mobiandro.com/

[Hagen]

Werbug von http://cdn.mobiandro.com/ nicht wegzubekommen trotz AdBlock.

[intense]

it could be malware:

scan your system for malware / adware
use malwarebytes antimalware (free version) ==> https://www.malwarebytes.org/
and adwcleaner http://www.bleepingcomputer.com/download/adwcleaner/