Re: File dates
timestamps (mtime/ctime) are trivial to manipulate. Easier even than manipulating the file length. On a *nix box, run `man touch` for a start (I know it sounds like a googlewhack, but it definitely isn't!)
Even without things like the touch utility, someone with enough access to sign their own executable with the legit certificate and host it on the genuine server could probably adjust the system time of the target before planting the file and change it back after.
Basically, do not trust timestamps.
Biting the hand that feeds IT
