Troj/Dloader-IR is a downloader Trojan.
Troj/Dloader-IR will periodically download configuration data from a remote website. The Trojan will then attempt to download and run executable files listed in the downloaded configuration data.
In order to run automatically each time a user logs in, Troj/Dloader-IR will set the following registry entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
bluestart
<path to Trojan>
At the time of writing, the downloaded file is detected as Troj/Blesh-A.