what do you think?

[Psymon]

I only noticed this tonight, this is the file path
C:\b0577ae2c47ee92518\update
and in there is update.exe
been there since may, apparently
the timestamp on the digital signiture is last night however.
looks like a virus to me.
It's got stuff all over it in properties saying its by microsoft, digital certificates and all. When I scan it with AVG it says its clean but I still don't want to run it.
is it safe? anyone even seen something like this before?

[PCguy]

[Psymon]

thanks