Ransomeware.
Viscious.
Pernicious.
My computer geek friend has been trying to get rid of it on the other box o' wires since Friday morning.
So far: computer geek friend - 0
Green Dot FBI virus - refuses to die
On Saturday afternoon I asked him to nuke the HD after recovering as many of my files as could be verified as not infected. He said "No" because he expects that he will be seeing more of this and wants t know how to kill it. So far the usual and mid-range esoteric virus killers have been no help. The thing apparently mutates (or is mutated) fairly frequently.
AVG, Semantyc, Norton, Windows Security all are unaware of the little bugger. There are probably a lot of other anti-virus programs that also do not protect against it.
When you go venturing into the intartubes, remember that some of the dragons are quite nasty and your shield is made of tissue paper.
stay safe.