I cleaned all the files pointed out by Google webmaster tools and Google confirmed that it is clean now.
However, Bing Webmaster tools thinks it is still infected but does not tell me where the infection is.
I installed Comodo Virus scan for Ubuntu and it did not find any infection.
Can somebody recommend a good Malware scanner (online scanner or for installation) working with Ubuntu 14.04?
You may take a peak at www.zettlercontrols.com
, but be aware that this site might be infected. If you do so, it is at your own risk.
Thank you for helping.