Photos on my site detected as virus

Some photos on my site are not opening for my users cause they are detected as viruses with Avast!
Here goes sample link:
hxxp://s4.depic.me/00174/9utd6dzpgcb4.jpg

Please check what could be wrong there. We host photos only, no archives or exe files.

hello,

will unblock the url in the next vps update, please make the image link not clickable by changing http into hxxp.

Regards
Jiri Sejtko