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Black Screen with Flashing White Line


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2 replies to this topic

#1 FrancisM89

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Posted 17 August 2011 - 05:39 PM

I'm sorry for the lack of any technical terms used to describe this but I'm a complete novice with computers.

I was watching a video when some warning messages popped up saying something like harmful stuffs trying to access your computer, then it restarted. Now it starts up, goes to the motherboard thing, goes past that then hits a black screen with a little white line flashing in the top left corner.

I've tried to use F8 to enter the safe mode start up but when I press F8 it comes up with

'PLEASE SELECT BOOT DEVICE

SATA:3M-STM3250318AS
CDROM:3S-TSSTcorp CDDVDW SH-S22'

I tried the SATA option twice, first time the white line vanished so it was just a black screen and then it restarted. Second time it just went back to the screen with the white flashing line.

Any help in sorting this out would be greatly appreciated.

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#2 Elise

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Posted 19 August 2011 - 03:25 AM

Hello, I'll move this topic to the malware removal forum.

Try this please. You will need a USB drive.

Download GETxPUD.exe to the desktop of your clean computer
  • Run GETxPUD.exe
  • A new folder will appear on the desktop.
  • Open the GETxPUD folder and click on the get&burn.bat
  • The program will download xpud_0.9.2.iso, and upon finished will open BurnCDCC ready to burn the image.
  • Click on Start and follow the prompts to burn the image to a CD.
  • Remove the USB & CD and insert it in the sick computer
  • Boot the Sick computer with the CD you just burned
  • The computer must be set to boot from the CD
  • Gently tap F12 and choose to boot from the CD
  • Follow the prompts
  • A Welcome to xPUD screen will appear
  • Press File
  • Expand mnt
  • sda1,2...usually corresponds to your HDD
  • sdb1 is likely your USB
  • Click on the folder that represents your USB drive (sdb1 ?)
  • Press Tool at the top
  • Choose Open Terminal
  • Type the following and press enter:

    dd if=/dev/sda of=mbr.bin bs=512 count=1

  • Press Enter
  • After it has finished a file will be located on your USB drive named mbr.bin
  • Remove the USB drive and insert it back in your working computer and navigate to mbr.bin, zip it up and attach it to your next reply.

This will allow me to have a look at the MasterBootRecord of your drive and see if it is infected.

regards, Elise


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#3 Elise

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Posted 28 August 2011 - 04:25 AM

Due to the lack of feedback, this topic is now closed.In the event you still have problems, please send me or any Moderator a Private Message and ask them to reopen this topic within the next 5 days. Please include a link to your topic in the Private Message. Thank you.

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

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Malware analyst @ Emsisoft





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