A comment left on the post mentions in days of old you could detect viruses via drive sounds... I have a 2u server sitting in a closet running a lot of things,

A comment left on the post mentions in days of old you could detect viruses via drive sounds... I have a 2u server sitting in a closet running a lot of things, it sits over a pool of spinning rust, one day I happened to be in the closet and hear the disks getting hammered, no alerts about any network hijinks, no login alerts or high volume traffic coming or going so I log in and it turned out to be a friend I had given a shell to because he wanted to learn linux and he was messing around with dd... His account now has an alert on login so I don't have a stroke. Not exactly fun but did bring back memories.