Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Random system files in the root of my drive


  • Please log in to reply
4 replies to this topic

#1 maki2012

maki2012

  • Members
  • 171 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Local time:08:56 AM

Posted 11 August 2010 - 12:46 PM

I just noticed them now when I was cleaning up my computer for a backup and defrag.

There are 256 files, all marked as type "System File", each having exactly 200MB (204,800KB) and all created on 7/12, from 3:23PM to 3:55PM.

The total size is 50GB, and they were all hidden. They have no file extension, and the namings:

They are all 5 characters long,
The first 3 characters are ~00
The 4th characters are numbers 0 to 9, letters a to f,
The 5th characters are also numbers 0 to 9, letters a to f.

Any ideas on what they are?

BC AdBot (Login to Remove)

 


#2 Kalon Wiggins

Kalon Wiggins

  • Members
  • 102 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Portland, OR
  • Local time:01:56 PM

Posted 11 August 2010 - 12:55 PM

did you run a malwarebytes scan already?

I've seen malware generate files with the goal of filling your hard drive to take you down. 50gb with random names sounds malwarish to me.

Also you might want to google a couple of the filenames and see what kind of results you get.

Edited by Kalon Wiggins, 11 August 2010 - 12:56 PM.


#3 maki2012

maki2012
  • Topic Starter

  • Members
  • 171 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Local time:08:56 AM

Posted 11 August 2010 - 01:03 PM

No red flags on malware, but I might go through some sys logs to see if anything else happened at that same time.

#4 coxchris

coxchris

  • Members
  • 1,151 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Atwater
  • Local time:01:56 PM

Posted 11 August 2010 - 01:03 PM

could you copy the name of the files or file in question and post them. If there were hidden by the OS dont remove them they are probably associated with windows 7

AA in Computer Networking Technology

BS in Information Technology 

Comptia A+, Project+, L+

Renewable:  N+,S+

CIW Web Design Specialist, JavaScript Specialist,  Database Design Specialist 

LPIC-1, SUSE 


#5 maki2012

maki2012
  • Topic Starter

  • Members
  • 171 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Local time:08:56 AM

Posted 11 August 2010 - 01:35 PM

The description in my initial post is the best I can do. There are 256 files:

~00XY

Where X is the numbers 0 to 9 and the letters a to f
Where Y is the numbers 0 to 9 and the letters a to f

Go through all the combination, and that's the filenames.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users