I received a file which i thought was suspicious and looked like the same as the files with W32.Downadup.B.
Here are virus total reports
1.The original report showed that it was being detected by Avira and AVG....(I don't have the link....I lost it)
2.Here is the second one ...........3 more Av's added the detection including Mcafee
http://www.virustotal.com/analisis/d7e256e767295caf67b00f826b7d87ae
It could be/could not be a Virus but it is something that should be looked at
Here is the tracking no: #10293911