I got revenge couple of months later with a "screensaver" that I've made in Delphi. In reality it would just "crash" with some random error, but actually copy itself on multiple places on the hard drive with windows sounding names, run both as a service and some innocent sounding files etc. It wouldn't show up in task manager. I could send and execute whatever commands I liked. I've deleted his Diablo saves a week later or so, and man he was livid as he wasted months playing. He had no idea what happened as he had two AV programs installed and he was confident it would detect a trojan.
Windows security at that period of time really was a contradiction in terms.
> “ However, use of NetBus has had serious consequences. In 1999, NetBus was used to plant child pornography on the work computer of a law scholar at Lund University. The 3,500 images were discovered by system administrators, and the law scholar was assumed to have downloaded them knowingly. He lost his research position at the faculty, and following the publication of his name fled the country and had to seek professional medical care to cope with the stress. He was acquitted from criminal charges in late 2004, as a court found that NetBus had been used to control his computer.”