Can A Virus Survive Fdisk+format?
Malware can and does survive formatting a hard drive e.g. Yes. I recommend a nice big buffer of DOD standard 7 writes of alternating 1&0s across the drive. (If you have the tools that can do this, or the time. Thank you all for sharing your knowledge and experience, tips and tricks. navigate here
by what_now3 / December 10, 2004 12:27 AM PST In reply to: Re: What is a "low level" reformat? A currently unimplemented virus attack I will not describe in detail here. Preview post Submit post Cancel post You are reporting the following post: Can any virus survive reformatting the hard drive? See here. –Jon Bentley Apr 28 '15 at 16:59 add a comment| up vote 1 down vote I'm adding this answer to provide an alternative to some of the misleading (and https://www.cnet.com/forums/discussions/can-any-virus-survive-reformatting-the-hard-drive-49909/
by R. We now know that sophisticated techniques exist and are actively used, for malware to survive a reformatting, and that this is not just limited to the MBR, or even the hard Therefore, no amount of formatting can make them go away. foler59, Jun 25, 2008 #12 lotuseclat79 Joined: Sep 12, 2003 Messages: 20,583 Also, in Video BIOS - if the video chip has a separate bios.
How big a buffer we put on the HD depends on 1. BIOS viruses would ruin the computer. I still wonder whether it matters, like LowWaterMark suggested, if a pattern or signature still exists but is not able to execute. Another was a logger type application.If you went out to school in my Avatar and timed it either just before or after their Software Engineering tests...you would see some mighty strange
Back in the day, MBR viruses spread via floppy disks. I've since installed a new disk drive and upgraded the memory and it works like a dream. I recently inherited a computer running Windows 2000 that was badly infected with over 1000 viruses. https://forums.techguy.org/threads/can-a-virus-survive-fdisk-format.702622/ can survive fdisk/format.
so what im trying to say is tha my hard disk is seein in all the programes i can even make partitions and create folders on them..butt i cant boot…so i I myself use the XP or 2k setup disk quite often for a fresh install...and skip the entire overwrite of the HD.Yes FDISK and Format do create a weak buffer, and This I have to admit is the first time I've heard the term "mid-level format". The system is not the hard drive's firmware. –Josh K Apr 29 '15 at 0:33 I'm not sure I understand you.
I never knew this kinds of virus exist –Wern Ancheta Apr 20 '10 at 6:24 In light of information we now have due to the Snowden leaks, this answer http://www.pcadvisor.co.uk/forum/helproom-1/does-format-kill-virus-80604/ This thread is now locked and can not be replied to. As removable media has advanced, so have viruses, trojans, worms, and other malware. Or if any part of the computer other than the hard disk is infected - you could flash something to the video card BIOS for example.
I'll note this doesn't take into account a firmware hack which would be invisible from the OS level and likely not removable through ordinary means. It takes a while, and I'm pretty sure it writes zeros the boot sectors also. This is the clean state you try to return the drive to with the Mid-Level Tools.Step 2. Either way, your answer implies in extremely strong terms (due to the bolding) that a user can be satisfied he has erased a virus merely by reformatting a hard drive. –Jon
- The tools restore the drive to a clean out of the box state.After a quick read, it sounds to me like you're describing something that Eraser from »www.heidi.ie/eraser/ (for example) can
- In reality about 2 passes and it is relatively clean, again for the Home user.) If it is only step 2.
- I have a Quantum HD that developed alot of bad sectors which I then low-level formatted.
- The drives of Today however are much more complex, and although a real geek could probably sit down and do this sort of thing the manufacturers decided to keep it for
I understand that FDISK & format creates a weak buffer and writing zeros to sectors creates a stronger buffer but I don't care how weak the buffer is. CIH only affects Win95/98 machines. Finally, maybe some undelete software might be able to read the disk structure at the lowest level. his comment is here Users do not verify downloads.
Most people would interpret "the system" as meaning every item which combines to make up your computer. Please do not further use the material without obtaining your own permission to use it.
And they are severely limited in restoring bad sectors..once the drive acquires more bad sectors it really needs to have a Low Level Format done on it so that the Disk
As a practical alternative, Steve Gibson's Spinrite left running overnight on highest level deep pattern testing will vaporize low-level magnetic remnant patterns if done after the ones and zeroes overwrite mentioned by westerntony / December 11, 2004 7:23 AM PST In reply to: Re: Can any virus survive reformatting the hard drive? Mid-Level Format- performed by the end user to return the drive to a clean state, ensure the delivery of the drive did not damage it, or put a buffer between the I don't think a virus will srvive it ..
Read the readme_sysclean.txt on how to use it.StingerUse those tools to scan the system for malware or infection.Do not turn off System Restore (if enabled and if you are using an share|improve this answer answered Apr 20 '10 at 0:33 Earlz 2,192124472 add a comment| up vote 2 down vote Malware in general is only a problem when it is run. Flag Permalink This was helpful (0) Collapse - Re: What is a "low level" reformat? http://everfreetech.com/can-a/can-a-virus-hide-in-the-fat32-partition-of-xp.html or just do a low level format if you are really worried about it.Click to expand...
How can a spware survive a high-level format while a virus which is way stronger can't survive? Even discarding the hard drive and replacing it with a new one is not a sure way to remove malware. current community blog chat Super User Meta Super User your communities Sign up or log in to customize your list. The M$ Tools are not really designed to handle this, although as I said earlier one can use them but then success is not guaranteed.
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