Bios or mbr possible virus ?

[Salenai]

Hello, I would like to ask, is it possible to have mbr or bios virus?
I had a suspicion because my bios had fourth bootable device - network adapter turned o

I know I did not mess with it and after googling I found it is not usually turned on by default. my friend though installed windows first time on my pc 2 years ago and messed little bit with booting order in bios,but he said he did not touch that one. He may have, just not remember.

I reinstall my os from time to time, yesterday after finding that out I reinstalled it again, and tried scan with mbar,mbam,roguekiller,eset online scanner and aswbar.

mbar after update was not able to to start, it threw error with driver being encrypted or something, and aswbar afterwarda froze. I had to reboot.

after rebooting windows logged me with temp profile.

i tried mbar,it worked and also aswbar again, it worked as well,but I tried mbrfix in aswbar after its scan and it just threw me error. I was not able to do it for some reason.

i reinstalled windows again, just to be sure.

1. I found in RK log and aswbar log that I have unknown mbr code, is it normal?
2.Fact that I could not overwrite mbr in aswbar and windows recovery dvd command prompt indicate a virus? Or was it just normal thing.

I asked elsewhere, tried gmer, rk and eset online scanner and they said that from logs mt system is ok.
3. Would bios or mbr cirus show up if I had something like that?

thanks


 

[Curson]

Hi Salenai,

I've replied to your PM.
Could you please attach the MBR dump with your next reply ?

Regards.

[Salenai]

how do I make mbr dump please?

[Curson]

Hi Salenai,

Please check your PM inbox.
Regards.