Files corrupt on distribution point

Currently running SCCM 2012.  It's been running successfully for about a year.

No recent changes.

Sometime over the last month, all packages are becoming corrupt when getting transferred to the distribution points.  17mb files are becoming 200kb, batch files are being stripped and replaced with a line of gibberish.  This is happening on both distribution points that we have.  

I've rebooted, completed all updates, tested with different types of packages.  Nothing has successfully published to the DP without becoming corrupt.

Any direction or ideas would be greatly appreciated.
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Nagendra Pratap SinghDesktop Applications SpecialistCommented:
It seems to be your Antivirus. Do you have mcafee?

Please exclude SCCM content folders from scanning.
Nagendra Pratap SinghDesktop Applications SpecialistCommented:
On second thoughts, SCCM 2012 has a different system. It does not store files like SCCM 2007 does.

The files you are seeing seem to be link files. They point to existing files.

Are you having problem with packages due to this?

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