There's nothing wrong with Prey or with the cron.exe file. In fact,
nothing has changed with the download link since we released 0.3.3.
The problem has to do with the cron.exe file in Windows, which we use
to keep Prey checking for the device's state (as Windows' Task
Scheduler proved not to be the best solution). The antivirus programs
detect the file cron.exe as "AutoHK.bi" (for "AutoHotKey Binary")
since it is written over AHK, but it certainly is not a trojan since
the only thing the program does is to run Prey between your defined
delay in minutes. In other words, cron.exe is an AHK binary but it
certainly does nothing strange or wrong.
The complete source code is available here:
http://github.com/tomas/prey/blob/master/distribution/windows/cron.ahk
I already contacted all the major antivirus software companies and
hopefully we'll get a response from them soon. If anyone wants to give
a hand, you can write to Mcaffee or Kasperksy and let them know that
you're a user of Prey and you're having trouble with the new virus
definitions as well.
Thanks!
Tomás