Posted 05 September 2011 - 04:31 PM
In summary, around 55Gb of hard disk space has "disappeared" and I am getting "out of resources" messages pop up....
My system is a PC running XP - my system automatically looks to download and install any new urgent patches at least weekly. My firewall and virus protection is via Bullguard v8.7.
Leading up to my problems, I know I had around 50-55Gb of disk space. A number of months ago I run out of disk space but freed up short of 100Gb by moving all my .mp3s, .wmv etc to my 1Tb external hard drive. A few weeks ago I finally got around to downloading via Steam the game Half Life 2 (which I paid for about a year ago with TF2) and after downloading the last additional missions it estimated I would have circa 50-55Gb left.
Yesterday (Sunday 4th) my firewall reported an attempted attempt on my PC while I was running a full virus scan (I tend to run it in the back ground most days I am on). If I am running a scan but not at my PC, I often hit the panic button since we have a couple of PCs and a laptop using the router and don't wish to cut the other user's access. I have a suspicion that the 'attack' might have happened when the panic button was on, and the IP of 255.2xx.xxx.xxx was recorded - I'm not sure as I thought the 255.2xx etc was maybe a router IP entry or something like that but then dismissed it. The IP cited is merely my vague memory and might not be correct. On the other hand, I mention it just in case it might be important.
I didn't think much about it until later today (Monday) when my PC reported a lack of HD resources. I right clicked on my C: drive and looked at the properties to be told I had 0kb left. I did a hard shut down of my PC and rebooted. This time it was showing up 32kb. I moved over about 10Gb of documents I'd want to keep onto my external drive. I then ran both Bullguard anti-virus and Malwarebytes anti-Malware (both full scans) and got a clean bill of health on the former but a blank notepad for the later.
I then checked my C: resources again and found the 10Gb was now zero. I then rebooted and found myself with only 5.72Mb of free disk space. A quick scan via Malwarebytes (quick scan) returns a clean bill of health.
Right now, Bullguard has the panic button on to block the internet although this is redundant as I have also pulled the network cable out of the router. I am currently typing this on our second home PC and have no idea if the issue could spread via the router and the fact the three computers we own can spot when the others are switched on.