I have problems with some web page and AVAST was sylent.

I opened some page and one more page opened: nga.artopas.ru via uragin.ru. the more times I wanted to close the page the more time new page opened with the same adress and the page said that I should follow the link and install new updates for chrome otherwise I can not use chrome browser. I couldnt use chrome at all. I swiched off the chrome via ctrl alt del and restarted it without those pages. I believe that some viruses were on those pages. and avast said nothing((((((((

I believe that some viruses were on those pages. and avast said nothing((((((((
No security program have 100% detection

Sucuri sitecheck detect nothing on the url given above
sitecheck.sucuri.net/results/nga.artopas.ru
sitecheck.sucuri.net/results/uragin.ru