Computer bug still attacking Vic hospital

A virus that infected computer systems at Royal Melbourne Hospital two weeks ago still hasn't been fixed and continues to "mutate".

The Qbot virus, which typically attacks banking systems and can steal passwords, was first noticed on January 22 and is still affecting some systems.

After it "harvests" login details, the virus trawls the internet looking for sites from which it can steal money, including banks, iTunes and Myki.

It had stopped hospital staff from accessing patient pathology results, with lab staff forced to process everything by hand.

Most programs are back up and running, including pathology and imaging, and Melbourne Health says it nearly has the virus and mutations contained.

"We had one day in the last week where the virus mutated six times," Melbourne Health chair Robert Doyle told 3AW on Tuesday.

"We are down to quite small outbreaks now but we are trying to stop it talking across computers."