El DJ

WTH is this?
I get home from school and it tells me AVG has detected a threat and it's Bwk.exe.
Can anyone tell me what this is?

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Piez.
"When Im sad, she comes to me
With a thousand smiles, she gives to me free
Its alright she says its alright
Take anything you want from me, anything
Anything.

Fly on little wing,
Yeah yeah, yeah, little wing"