So at work we have a machine employees use that has been getting viruses like clockwork during a specific shift. I would like to get a better idea of exactly when it is happening, so I can track down which user is the cause. Does anyone have any recommendations for software capable of logging web traffic on the machine? I've got a pretty good idea what the employee(s) is(are) doing, but I'd like to prove it.
I tried a bit of searching, but most result sets are clogged with noise from either enterprise security software, or parental control filters.