Some pages on the Project Euler site are trying to deliver a file "adobe_flashplayer_7.exe" which is is infected with the virus "MSIL/Injector.KRB!tr".<p>For instance look carefully at https://projecteuler.net/news or https://projecteuler.net/thread=341
In fact, better take a look at <a href="https://www.virustotal.com/en/url/48ef50be619c0c298a7af51c67208bf96ecdac79f40ccf3692aa9f05ad5444ac/analysis/1438471101/" rel="nofollow">https://www.virustotal.com/en/url/48ef50be619c0c298a7af51c67...</a><p>That's the file that the PE try to open <a href="http://www.rcmodelcentre.co.uk/cache/adobe_flashplayer_7.exe" rel="nofollow">http://www.rcmodelcentre.co.uk/cache/adobe_flashplayer_7.exe</a>