miktex update flagged as containing malware - false positive or not?

Hi

Before approaching my companies IT people (not the most light hearted and easy going group) I'm seeking help on the following.

I have very recently installed Miktex on a win 7 system and now wish to perform an update on the installation, however it appears that the antivirus software running on all incoming downloads is flagging the update as containing a possible virus. I'm assuming that this is a false positive. Can any body through any light on this issue? Additional information could improve my case with the IT department to have the file download unblocked.

For what its worth, the scanner provide the following rather cryptic feed back
Virus/PUS: "PUS:Downloader.Win32.DownMan.hl" found!
URL: http://www.pirbot.com/mirrors/ctan/systems/win32/miktex/tm/packages/miktex-bin-2.9.tar.lzma

Dominic
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