Virus? Worm? Hard Drive Full

August 16, 2007 at 13:01:50
Specs: Win XP, Several
Okay, I've already fixed the computers, but I've had this happen twice now and I'm curious if anyone has see this:
Two of the computers on the small network that I help administrate have suddenly (as in, overnight) come up with a "hard drive full error". As in, 40G completely full on comps that run only a handful of programs related to my work.
When I checked the sub-folders, I found that most of this was the Windows folder (35G), which obviously isn't supposed to be. After un-hiding the system folders, we found a folder called (I think) /CSS (or CSC, CSS.. something). It was 30+G. it deleted easily and then the computer went merrily on it's way.
The first computer (last week) was just reformatted and I hadn't yet installed the antivirus (yup - stupid). The second computer (yesterday), the antivirus (NOD2)suddenly popped up a "can't write to file" error, and was therefore not working.
After removing the file, neither NOD nor EWIDO/AVG are able to find anything, and the computers are working swimmingly.

I'm wondering if anyone has seen this problem. I'm concerned that whatever flooded the HD may also have corrupted NOD.

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August 22, 2007 at 18:20:55
I have seen this before as well. However, in the case I saw, it was the System32 folder that was ballooning like mad!

Lian-Li PC61
AMD Athlon 3700+ San Diego @ 2.6 gHz stock cooling
eVGA 7800GT
WD Carviar 300gb SATA 3.0gb/s
Samsung 17" 740N Monitor
Dr. Peppe

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