The iWorld

a64sddd.exe is file that's part of the Network1 advertising program. This process file behaves as a spyware and an adware. It collects internet browsing data from your computer and sends the same to the owner's server. a64sddd.exe also opens popup ads on your computer when connected to internet.

If you find a64sddd.exe on your computer, then the first thing you should do is to remove this file at the earliest from your computer. Run a registry scan, a virus scan, an online spyware and trojan scan and scan for any other suspicious program or file on your computer that might be collecting data on your pc and sending it to the intended receiver.