Security has always been a pain and you’re right, open source gave script kiddies a new power.
I remember when Norton Antivirus actually shipped with a virus (I think a disgruntle employee). Which gave rise to the conspiracy theory that virus companies were generating viruses to increase profits.
On a different note, one of my favorite old time viruses was one that asked, “Have you ever dance with the devil in the pale moon light?” as it was formatting your hard drive in the background.
That's rotten. The one's that annoy me most are the ransomware viruses with continuous morphing viruses that easily evade the best AV software. The most damaging to hit my own machines came from Sweden. It burrowed a Window PE virus into the firmware of the keyboard controller on the motherboard. That machine is now Linux only. The virus goes active if a Windows OS boots.