Step 5: Uninstall MBR.PHYSICALDRIVE0 Virus and Its Associated Annoying Programs. Click on “Start” button in order to open Start Menu. When the Start Menu opens, tap on the “Control Panel” option. Right after, click on “Uninstall a Program” option under the “Programs” category.
Consider using a tool that can clean your MBR, like. Make sure to wipe the MBR, and not repair it, as generally you can't know if the malware would be removed by repairing.I guess it is fair to assume that if you have a writable MBR, it could be infected. Thus, yes, an attacker could infect MicroSD cards.
DVD/CD (optical drives) function differently (see and ), they do not use a MBR.For the creation of a Live CD, it's best to use as it takes care of different variations, be it hardware/firmware or configuration, such as OS or partitioning.So, if you need to make sure you have removed any possible malware on the drive:. Create a clean MBR, practically redoing the partitioning of the drive. Format your new partition(s).Both steps are necessary, because these are two logically different steps and generally doing one does not affect the other.
![Removal Removal](/uploads/1/2/5/6/125614317/395426721.jpg)
I thought dvd cd wouldn't be possible, as i was thinking no mbr, poster below said it's possible to put it on cd dvd, getting confused now, yeah good tip i already have live usbs ect that software looks good tho, writting iso to microsd cards, i'm thinking if formatting due to virus infections smart idea would be to always fix repair the mbr before reinstalling the os. Assuming you just wanted to remove the mbr create a new one and not repair is formatting the drive the best course of action?–Jul 18 '18 at 10:30. All you'll need to do is boot up a LiveCD or Windows installation or whatever OS you prefer and format both USB and HDD that will resolve a typical rootkit.Rootkit is just for hiding particular malware but yes it can infect any form media such as MicroSD, USB, CD, DVD, BIOS and so on. It can get more complex by infecting routers by re-writing the firmware on there. Ofcourse, extremely rare and would have to be programmed for that particularly version of the router.
BIOS is also another rare rootkit.Some good reading articles for you. I found this out, The following command from the Linux terminal window as root will erase the mbrsudo dd if=/dev/zero of=/dev/sda bs=512 count=1This will erase the first sector (512 bytes) of the hard drive /dev/sda.Be sure that this is the right drive to erase!
![Mbr Mbr](/uploads/1/2/5/6/125614317/363821412.jpg)
So, keep your external backup drive disconnected, to avoid any bad error.To erase anything before the (former) first partition of the drive, located at the 1st MiB, you can erase 2048 sectors:This is for the case a virus used that area to store any info.sudo dd if=/dev/zero of=/dev/sda bs=512 count=2048So only the second command is necessary.The only GUI way to delete the mbr would be to make a new partition table. This affects the master boot sector only. However, because there was such a virus history, it is safer to clean a few more, not just the mbr.Still doesn't delete the Volume Boot Record, which can also be infected.
I should explain that I am trying to remove a nasty virus/rootkit from from my friends laptop (HP dv2000), however the screen of his laptop is broken so he uses an external monitor. Of course, the screen output does not go to the external monitor until Windows is up and running, and then it fortunately automatically switches. Unfortunately, this makes it very difficult to do any malware removal because I can not see the screen if I try to boot into Safe Mode or run the Windows Recovery Console or open the BIOS settings, etc.What I've done is remove his internal hard drive and put it in an external enclosure so I can scan it from my PC. I've killed and removed numerous viruses (virii?), but Root Repeal keeps telling me I have an MBR Rootkit in that drive. Although no other scanners have found a rootkit I am inclined to believe Root Repeal because none of the scanners have found any rootkits, just trojans.It is my understanding that if I just repair or replace the MBR it should kill the rootkit, but I am leary of doing this because the disk has an HP recovery partition and I am worried that fixing the MBR will mess up the whole drive. I need to fix the MBR before I put his drive back in his laptop, because I am worried that if I can't see the Windows Recovery Console I won't be able to fix it. And if I mess up and it doesn't boot I won't even be able to use the HP Recovery CD's (because I won't be able to see the interrface).His laptop is an HP dv2315nr (dv2000) running Vista Ultimate (32-bit).
The PC I am using to scan his drive is also running Vista 32-bit. By the way, when I run Root Repeal I always get an 'RootRepeal Error - Invalid PE image found!' Error but the scans seem to run find.
Besides the 'MBR Rootkit Detected!' I also get a lot of 'Sector mismatch' in both of the partitions, however Root Repeal does not find any.sys files.So anyway, my question is: how can I repair the MBR or remove the rootkit from it if it's an external drive?