I recently caught in a virus or something. Before, I use another Anti-Virus. But the anti-virus is disabled by the virus. And it even cannot recgonize the virus.
3 problems. Anti-virus disabled and cannot be started (even from msconfig), cannot connect to the internet, and cannot start in safe mode. plus,all usb drive will be infected if I insert it into the computer.
I tried googling for the virus name in another computer. Found that mcafee has data about it. So I've uninstall the old anti-virus and install mcAfee full 2009. Installation completed successfully, but mcafee didn't appear. I tried starting it from the start menu, and from the program files, only mcAfee label pop for seconds, and closed again.
I'm not sure what is the root, but I tried scanning my computer with anti-malware. it detects 6to4.dll as a malware. tried forrce delete, and delete after reboot. Came back after booted.
What should I do to make my computer normal again? please do not suggest me to safe mode, or online scanning. because I can't.
If you have access to another computer, where you'd be able to create a bootable CD, try this tool:
It seems like you've got a rootkit infection that prevented mcafee from running properly.
Please have a look at the instructions in that link above. This bootable CD should allow you to run McAfee VirusScan, and also some network access.
If that .dll you've mentioned is still around on your disk, you can send it to McAfee, as described here: https://www.webimmune.net/default.asp
Hope that helps.