Why isn't this being detected?

Viruses and worms
1

So, as we’ve all seen the ?Virus Analitics" Threads on the V&W Section here. I went on a head hunting mission for these PUP’s.

https://www.virustotal.com/en/file/5d2eb41f8fc3ca2aa75987e3f36b42d94a3a3e96c03b3526c25a77c4f01044f4/analysis/1421865670/
https://www.virustotal.com/en/file/c9aef23f5d3973bfed252a8eabfb880b56e8c88f6cb47987d309e15f1ef6432b/analysis/1421865853/

So, what gives? Even Malwarebytes won’t Detect them!!

(Both sent to Avast! Lab for Testing)
Edit: Reported to MBAM as well!

2

MetaScan: (YAC!) https://www.metascan-online.com/en/scanresult/file/2ff3a514ff924e4c8832b0508b46eb3c
WinZipper: https://www.metascan-online.com/en/scanresult/file/594b4994f49841a8b21cf4f179e40f3f

3

Thank you, Michael, for reporting to us all about this with this thread! 8)

Yac is a mal-proggie: http://www.elektroda.pl/rtvforum/topic2971493.html (Sorry that the txt is in Polish).
It is in the first place a behavioral detection. Flagged (IDS) here: http://webcache.googleusercontent.com/search?q=cache:gtslpJJy_bUJ:https://urlquery.net/report.php%3Fid%3D1421536747184+&cd=2&hl=nl&ct=clnk&gl=nl
WOT is upfront about the site’s webrep with a double red:
https://www.mywot.com/en/scorecard/yac.mx?utm_source=addon&utm_content=popup

They created and new website which redirects users from virus-delete.com which was previously blocked by hpHosts for distributing rogue security products.
Quote from Ginger1205

As we can also read from here: http://malwaretips.com/threads/yac-virus-removal-tool-and-cleaner.19058/

polonus