Solved

IDE driver changes name at every boot.  Virus ?

Posted on 2010-11-18
7
598 Views
Last Modified: 2012-06-22
Hello,

Having some problems with my XP SP3 system, I have started investigating in depth the boot process.
I have the /BOOTLOG enabled for years on my system.
This logs some boot details in the %windir%/ntbtlog.txt file.
I therefore started to look if I couldnt find any weird driver name in that file.
I actually found one :
            Loaded driver \SystemRoot\System32\Drivers\ausdht7g.SYS
I looked in my system32/drivers directory for the file but didn't find it.
I therefore looked more deeply and found that this driver changes name at every reboot, since December 2006, date at which it started appearing.
Running DriverView from Nirsoft shows that the driver is loaded and is listed as IDE/ATAPI Port Driver, 5.1.2600.5512 (xpsp.080413-2108), Microsoft Corporation, Microsoft® Windows® Operating System.

Here are the relevant lines from the ntbtlog.txt file, showing the names used for this driver :

+ egrep 'Service Pack|\\a.......\.SYS' ntbtlog3.txt
 Service Pack 1 9 21 2004 23:37:59.375
 Service Pack 1 9 21 2004 23:43:03.375
 Service Pack 1 9 21 2004 23:55:11.375
 Service Pack 1 9 22 2004 10:37:54.375
 Service Pack 1 9 22 2004 12:12:25.359
 Service Pack 1 9 22 2004 14:16:00.375
 Service Pack 1 9 22 2004 14:50:32.375
 Service Pack 1 9 22 2004 14:55:32.359
 Service Pack 1 9 22 2004 15:07:57.375
 Service Pack 1 9 22 2004 15:14:52.375
 Service Pack 1 9 22 2004 15:19:52.375
 Service Pack 1 9 22 2004 15:37:17.375
 Service Pack 1 9 22 2004 15:48:45.375
 Service Pack 1 9 23 2004 00:54:29.375
 Service Pack 1 9 23 2004 22:38:07.375
 Service Pack 1 9 27 2004 19:47:06.375
 Service Pack 1 9 30 2004 23:20:12.359
 Service Pack 110  4 2004 19:50:22.375
......... removed lines ...................
 Service Pack 111 30 2006 11:28:20.375
 Service Pack 112  2 2006 13:38:25.375
 Service Pack 112  2 2006 19:57:22.375
Loaded driver \SystemRoot\System32\Drivers\av8k5o1x.SYS
 Service Pack 112  5 2006 09:04:56.375
Loaded driver \SystemRoot\System32\Drivers\abn1c3w1.SYS
 Service Pack 112  8 2006 01:44:51.375
Loaded driver \SystemRoot\System32\Drivers\a3i8gtoc.SYS
 Service Pack 112  8 2006 09:56:31.375
Loaded driver \SystemRoot\System32\Drivers\ai2p9vf3.SYS
 Service Pack 112 10 2006 17:49:37.375
Loaded driver \SystemRoot\System32\Drivers\alk546a6.SYS
 Service Pack 112 11 2006 07:48:15.375
Loaded driver \SystemRoot\System32\Drivers\ad7z7kj2.SYS
 Service Pack 112 16 2006 14:19:10.375
Loaded driver \SystemRoot\System32\Drivers\appa9qnt.SYS
 Service Pack 112 16 2006 14:22:06.375
Loaded driver \SystemRoot\System32\Drivers\akrh9cbk.SYS
 Service Pack 112 16 2006 14:32:09.375
Loaded driver \SystemRoot\System32\Drivers\as4z7wv3.SYS
 Service Pack 112 16 2006 15:53:29.375
Loaded driver \SystemRoot\System32\Drivers\a4kd3tp5.SYS
 Service Pack 112 16 2006 16:19:45.375
Loaded driver \SystemRoot\System32\Drivers\aa093efi.SYS
 Service Pack 112 18 2006 00:35:58.375
Loaded driver \SystemRoot\System32\Drivers\ayr26ro8.SYS
..........  removed lines ...................
Loaded driver \SystemRoot\System32\Drivers\awbvgwq8.SYS
 Service Pack 311 16 2010 19:34:43.375
Loaded driver \SystemRoot\System32\Drivers\akuf1rvi.SYS
 Service Pack 311 16 2010 20:35:10.375
Loaded driver \SystemRoot\System32\Drivers\axkel46g.SYS
 Service Pack 311 18 2010 14:54:04.375
Loaded driver \SystemRoot\System32\Drivers\a6z2qu01.SYS
 Service Pack 311 19 2010 01:03:38.359
Loaded driver \SystemRoot\System32\Drivers\ausdht7g.SYS

Of course I ran a full scan of my C drive and no virus was found.
I tried to find any weird program which would have been installed at that date, but didn't see anything weird.

Any idea where this strange behaviour is coming from ?

Thanks in advance.

Michel
0
Comment
Question by:michelhans
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
7 Comments
 
LVL 48

Expert Comment

by:dbrunton
ID: 34169804
0
 

Author Comment

by:michelhans
ID: 34169955
Ran TDSSKiller, which only pointed to sptd.sys, which is the Alcohol 120% Virtual CD driver.  I removed it temporarily.
Note that in the report, TDSS did not list the questionnable driver, although it is listed in the registry.

Running Malware.
0
 

Author Comment

by:michelhans
ID: 34170053
Hitman pro and MalwareBytes done, with no significant discovery.  Will reboot anyway for the small changes.  Note that Combofix requires Antivirus to be uninstalled, which I do not want to do.  
Will keep posted.
0
PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

 
LVL 48

Expert Comment

by:dbrunton
ID: 34170081
What anti-virus are you running?

I'm just wondering if this is an anti-virus file.
0
 
LVL 48

Accepted Solution

by:
dbrunton earned 400 total points
ID: 34170101
You've actually fixed the problem.  

It is sptd.sys

Full details here http://www.bleepingcomputer.com/forums/topic203985.html

Looks like Daemon Tools or Alcohol.
0
 
LVL 27

Assisted Solution

by:Tolomir
Tolomir earned 100 total points
ID: 34170925
I guess this random name is used to fool some games music CDs that the "copyright breaker" is installed.
If it were sptd.sys all the time one could easily identify such a tool.
0
 

Author Comment

by:michelhans
ID: 34172305
Ok.  So, this is explained.  No threat there.    I downloaded the latest version of Alcohol and reinstalled.


@tolomir : I actually contacted Alcohol Soft and they confirmed it is to fool the copyright protections.

@dbrunton : The antivirus I'm running is McAfee Enterprise 8.5i.

I'm surprised that none of the 3 malware detectors noticed the 'hidden' driver.

Thanks all for your help.
0

Featured Post

Secure Your Active Directory - April 20, 2017

Active Directory plays a critical role in your company’s IT infrastructure and keeping it secure in today’s hacker-infested world is a must.
Microsoft published 300+ pages of guidance, but who has the time, money, and resources to implement? Register now to find an easier way.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Ransomware continues to be a growing problem for both personal and business users alike and Antivirus companies are still struggling to find a reliable way to protect you from this dangerous threat.
Did you know that more than 4 billion data records have been recorded as lost or stolen since 2013? It was a staggering number brought to our attention during last week’s ManageEngine webinar, where attendees received a comprehensive look at the ma…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question