Despite that, I'm having a problem. Several sites that I work on were victimized by the .htaccess exploit.
Given that the sites have one person in common, namely, me, the first thing I did was to run a virus scan. I also ran the latest update of Malwarebytes. Even ran an old copy of Hijack This just to see what came up.
After talking to my host, ran combofix. The log looks good to me--it quarantined a couple of files that are definitely not viruses (my putty log, for example, and isRS-000.tmp, which, I believe, is from malwarebytes, and a Citrix go-to-meeting file), but I would appreciate having a more experienced person take a look at it too.
I have made sure I have no shared folders on my network (although that's kind of moot because the only other computer on the network is a chromebook and the network is password protected), I have used the master password protection on Firefox, and as I reset ftp passwords I'm storing them in a password protected excel file and not saving them on the ftp program.
Any additional advice that you can give me for hardening my computer would be very useful, although my tech support person did say that if combofix came up clean as well, the odds were vanishingly small that the problem originated with me.
Thank you in advance for your time.
Edit: The combofix I ran was NOT infected by a virus and hash didn't match known infected version hashes
Edited by MsZola, 30 January 2013 - 11:04 AM.