Hi guys, wow.. thank you all for your replies and information, I appreciate your times and efforts! I probably a little confuse of who said what so.. my apologize if I did.
@Layback Bear: I agree, being paranoid is another layer of security protection. While I think I am OK from random attack / virus but after reading / hearing a lot about security.. well, there are always something to be afraid of. Every time we can hear about new malwares, zero days vulnerabilities, new way to exploit etc etc. Can't help but thinking (and agree) that (online) security is just illusion. Thanks for the scanners, just spent a lot of times with Eset's.
@UserNameIssues: No need to apologize, I'm glad you did and I like your methodologies. I am not trying them (definitely beyond my capability) but I think there is something we (I) can learn from them. I know a little programming and I'm a little surprised that it is not case sensitive.
@AddRam: Yes, I only have 1 System32 folder in C ("Show hidden file and folder" option is checked)
Well, glad that it was nothing to be aware of.