This morning I checked and saw a new folder named "A" on my C:\ drive.
It's quite strange as I've just recently reformatted my computer and have zone alarm internet security (7.1.248) installed, as well as sunbelt's counterspy v2. I performed scans using those two programs as well as superantispyware, avg antispyware, b-i-t-defender online scan, panda active scan online, and checked my HiJack This! log and compared it to the day after I formatted (they look the same), I also ran F-secure's antirootkit and AVG's antirootkit. The scans were done in normal and safe mode with the most updated definitions for each.
All come up clean, and I'm sure stumped...
This "A" folder has come up about 9 months before, but I've reformatted since then.