Problem with updating YTD Video Downloader

Viruses and worms
1

Helo, so i update YTD Video Downloader (in-product updater). After download, Avast Internet Security first block with:

1)web shield:

10.11.2014. 20:17:28	http://d1heusqnwyr2ll.cloudfront.net/release/rt-installer.exe [L] FileRepMetagen [Malware] (0)

and few sec after with 2)file system shield:

10.11.2014. 20:17:32	C:\Users\JuJu\AppData\Local\Temp\nsu9FEA.tmp\rt-installer-gg.exe [L] Win32:Evo-gen [Susp] (0)

So i restore that file from virus chest and scan it with Avast and NO THREAT was found.
Is it malware or what? Web and file system shields detect it as malware but when i scan it on demand its clean??
Also in virustotal that file is not detected by Avast.

Here is virustotal scans:

https://www.virustotal.com/hr/file/e696846d05eabe452feeaf0459d41b17d19910835ee26b6ef5ed231c96e83578/analysis/1415647610/

https://www.virustotal.com/hr/url/babd9e7cbc9086a47b7cd3f1b1c5c94e9ec79bf9c105d5b036f7cc8066b408de/analysis/1415647796/
2

In virus chest says that its clean file, but not on https://my.avast.com/