Zeus - Cleanup Possible?

One of our computers got hit by a Zeus variant today, thankfully our WildFire caught it.

A colleague takes the view that it can be cleaned up.

I take view of nuke it because it's the only way to be sure i.e. you can run any number of tools that say it's clean but would you really use it to do your online banking?

Who's right here?

 

Well, it can be cleaned, but I would more concerned, how did the PC get infected in the first place.
Sure, you can format it and install everything again, but with the same config, it can happen again.

 

You are right.
A clean install is the only guaranteed way of getting rid of everything.

All anti-virus tools are dependent on definitions which are always behind the curve.
Heuristics can catch some things that definitions miss, but not all.
Malware can be left behind undetected and downloading newer malware that has not yet been detected yet.

 

Agreed, but when you have 700 machines something will get through from time to time - not good but it happens sadly.