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Black Screen Of Death Caused By Trojan:Win32/Daonol

I’ve seen a lot of reports that users are experiencing a black screen of death when some Windows updates are applied. Windows updates do NOT cause the black screen of death, however malware already present on the PC does, specifically Trojan:Win32/Daonol (which is an info stealer/redirector). The latest versions of Trojan:Win32/Daonol are very buggy and prevent Windows from starting or shutting down properly, thus a black screen is the only thing the user sees.

If you want to fix this infection a bootable anti-malware disc is needed.



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  • LoveSophos

    What does the ‘Black Screen of Death’ look like?

  • Dima

    Hi matt can you give me a site where i can download bootable rescue disk for free (if there is a site like this) Thanks.

    By the way i like your videos keep the good work man :)

    Dima.

  • Dima

    ^Sorry i meant Bootable anti-malware disk.

    Dima.

  • lemans
  • Dima

    Uhmm can you maybe give me the direct link where i can just click and download it my English not very good Im speaking with babylon still learning so i don’t know much if you can that would be great!

    Dima.

  • lemans
  • http://www.myhelpfulnerd.com Ken

    @Dima: UBCD4Win is basically a copy of Windows that runs entirely from a CD. However, due to the Windows license, it can’t be distributed as a pre-built ISO–doing that would be like distributing a free copy of Windows. Instead, you have to provide your own Windows CD and build an ISO yourself using the UBCD4Win Builder. All of it’s included in the download that Lemans linked to, though, and it’s fairly straightforward if you have a Windows CD laying around. See http://www.ubcd4win.com/howto.htm for detailed instructions. I think Matt has a video on building UBCD4Win, too.

  • AV-Guy
  • Buck

    Microsoft is investigating reports that its latest release of security updates is resulting in system issues for some customers,” the software maker said in a statement. “Once we complete our investigation, we will provide detailed guidance on how to prevent or address these issues. ”

    The issue was noted by British security firm Prevx on its blog on Friday, with that company also offering a suggested fix for the problem.

    “The symptoms are very distinctive and troublesome,” Prevx said. “After logging on there is no desktop, task bar, system tray or sidebar. Instead you are left with a totally black screen and a single My Computer Explorer window.”

    Prevx suggested that the black screen issue can occur on a wide range of Windows machines from Windows NT through Windows 7. In its blog, Prevx said there appear to be many causes of the black-screen issue, not all of which are related to the security update.

    “In researching this issue we have identified at least 10 different scenarios which will trigger the same black screen conditions,” Prevx said. “These appear to have been around for years now.” As for the latest security update, Prevx said changes to the way registry keys are handled appears to be the reason it is causing black screens.

    From CNN.com

  • Kinar

    looks like the Blue SOD is now “Black Screen Of Death”! :D

  • Thermalcake

    No, these are two different things.

  • Jimmy James

    The Black Screen Of Death is abbreviated to KSOD (blacK Screen Of Death)

  • Daniel G.

    well i think i have a variation of this problem i get this black screen but so fas i investigated there should be a window with my pc and stuff, well i dont, i just got my black screen and my mouse and nothing runs alt + ctrl + del cause the mouse to turn to “working” mouse but after 3 secs it come backs to normal mouse i just cant do anithing not even “run” function win key + R im goin crazy >_<


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