Files Encrypted by Trojan/Virtus, Looking for ways to decrypt files

Hey Everyone,

I am having a huge issue at the moment where our shared files are being encrypted by a virus/trojan. This incident started this morning and was discovered in the afternoon but unfortunately most of the files (around 20-40 GB) were encrypted by this virus. The infected files are Pictures, Excels, Words and PDFs and the processes that likely were responsible for the encryption were shutdown and moved to a temporary folder.

The suspicious processes that were running were:
hovynqoruhup.exe
ynecyc.exe
heap.exe
Heogbawcyhobbb.exe

Using ESET Anti-Virus, they are identified as:
Kryptik.BORN
Kryptik.UDL
Kryptik.BOSI

My question is - how can get my files back?? (I do have some copies of the original files before encryption)
- Are there decrypters out there for these viruses?

I believe this is something that many of you guys here have seen and experienced, if you could share your solutions I would very much appreciated.

Thanks!

-T