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Malware or Trojan ?


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6 replies to this topic

#1 deviated_hermit

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Posted 01 November 2009 - 11:39 PM

My computer seems to be under siege. It started off with 'Task Manager' & 'Regedit' being disabled. I get the message "Disabled by Administrator". I couldn't visit any antivirus websites to run an online scan etc. I couldn't update my antivirus or run any standalone antivirus. I tried to boot in safe mode and now I just see the boot screen and the computer restarts. I am now stuck with a computer that starts up, reaches the windows logo screen and it reboots. Is a format my only option ? Please help :thumbsup:

I'd like to add something here, I tried to repair the OS using the recovery CD and was able to do a "bootcfg /rebuild" and can now boot up the system, however it's still infected. Can anyone help ? I can provide Hijack this logs etc.

Edited by deviated_hermit, 02 November 2009 - 06:09 PM.


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#2 garmanma

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Posted 03 November 2009 - 09:54 PM

We Need to check for Rootkits with RootRepeal
  • Download RootRepeal from the following location and save it to your desktop.
  • Extract RootRepeal.exe from the archive (If you did not use the "Direct Download" mirror).
  • Open Posted Image on your desktop.
  • Click the Posted Image tab.
  • Click the Posted Image button.
  • Check all seven boxes: Posted Image
  • Push Ok
  • Check the box for your main system drive (Usually C:), and press Ok.
  • Allow RootRepeal to run a scan of your system. This may take some time.
  • Once the scan completes, push the Posted Image button. Save the log to your desktop, using a distinctive name, such as RootRepeal.txt. Include this report in your next reply, please.

----------------------------------

Please note: If Rootrepeal fails to run, try this step: Click Settings - Options. Set the Disk Access slider to High

Also try: right-click on rootrepeal.exe and rename it to tatertot.scr
Mark
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why won't my laptop work?

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#3 deviated_hermit

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Posted 05 November 2009 - 06:30 AM

I ran the RootRepeal Tool as advised and I got the message that the Boot sector could not be read. I formatted C: drive but when i accessed the other volume, D:, I got the infection again. AVG free detected 'Tanatos.P.Dropper' in almost all the .exe files on D:.So, I again formatted the C: partition and this time I did not access the other volume, below is the report. I hope there is a way I can save my other volume as I back up all my data on that volume. I need to clean and save volume D:
HELP NEEDED or I am hosed.

ROOTREPEAL AD, 2007-2009
==================================================
Scan Start Time: 2009/11/05 16:58
Program Version: Version 1.3.5.0
Windows Version: Windows XP SP2
==================================================

Drivers
-------------------
Name: dump_atapi.sys
Image Path: C:\WINDOWS\System32\Drivers\dump_atapi.sys
Address: 0xBA103000 Size: 98304 File Visible: No Signed: -
Status: -

Name: dump_WMILIB.SYS
Image Path: C:\WINDOWS\System32\Drivers\dump_WMILIB.SYS
Address: 0xBADCE000 Size: 8192 File Visible: No Signed: -
Status: -

Name: rootrepeal.sys
Image Path: C:\WINDOWS\system32\drivers\rootrepeal.sys
Address: 0xB9E3B000 Size: 49152 File Visible: No Signed: -
Status: -

Hidden/Locked Files
-------------------
Path: c:\windows\modemlog_zte usb modem fff1.txt
Status: Size mismatch (API: 7094, Raw: 6888)

Path: c:\documents and settings\amarpreet\local settings\temp\avgdownloadmanager\packages\avgdm90_free_0698_041.pack
Status: Size mismatch (API: 871356, Raw: 837776)

==EOF==

Edited by deviated_hermit, 05 November 2009 - 06:32 AM.


#4 garmanma

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Posted 05 November 2009 - 06:56 PM

I back up all my data on that volume

If this is a rootkit, it is recommended not to save anything

Try these other two scan


:flowers:
Please download Win32kDiag.exe by AD and save it to your desktop.
alternate download 1
alternate download 2
  • This tool will create a diagnostic report
  • Double-click on Win32kDiag.exe to run and let it finish.
  • When it states Finished! Press any key to exit..., press any key on your keyboard to close the program.
  • A file called Win32kDiag.txt should be created on your Desktop.
  • Open that file in Notepad and copy/paste the entire contents (from Starting up... to Finished! Press any key to exit...) in your next reply.
--------------------------------------


:thumbsup: Go to Posted Image > Run..., then copy and paste this command into the open box: cmd
Click OK.
At the command prompt C:\>, copy and paste the following command and press Enter:
DIR /a/s %windir%\scecli.dll %windir%\netlogon.dll %windir%\eventlog.dll >Log.txt & START notepad Log.txt
A file called log.txt should be created on your Desktop.
Open that file and copy/paste the contents in your next reply.
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
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#5 deviated_hermit

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Posted 06 November 2009 - 08:15 AM

I did as advised and got two notices or alerts. The latter must be the report you wanted.

The first one was :

Running from: C:\Documents and Settings\User\My Documents\Downloads\Win32kDiag.exe

Log file at : C:\Documents and Settings\User\Desktop\Win32kDiag.txt

WARNING: Could not get backup privileges!

Searching 'C:\WINDOWS'...

Finished!

And the second was:

Volume in drive C has no label.
Volume Serial Number is D0F5-BD87

Directory of C:\WINDOWS\SoftwareDistribution\Download\2d8407673ea9865ef7cd775540e3a36b\backup

08/04/2004 03:56 PM 180,224 scecli.dll

Directory of C:\WINDOWS\SoftwareDistribution\Download\2d8407673ea9865ef7cd775540e3a36b\backup

08/04/2004 03:56 PM 407,040 netlogon.dll

Directory of C:\WINDOWS\SoftwareDistribution\Download\2d8407673ea9865ef7cd775540e3a36b\backup

08/04/2004 03:56 PM 55,808 eventlog.dll
3 File(s) 643,072 bytes

Directory of C:\WINDOWS\system32

08/04/2004 03:56 PM 180,224 scecli.dll

Directory of C:\WINDOWS\system32

08/04/2004 03:56 PM 407,040 netlogon.dll

Directory of C:\WINDOWS\system32

08/04/2004 03:56 PM 55,808 eventlog.dll
3 File(s) 643,072 bytes

Directory of C:\WINDOWS\system32\dllcache

08/04/2004 03:56 PM 180,224 scecli.dll

Directory of C:\WINDOWS\system32\dllcache

08/04/2004 03:56 PM 407,040 netlogon.dll

Directory of C:\WINDOWS\system32\dllcache

08/04/2004 03:56 PM 55,808 eventlog.dll
3 File(s) 643,072 bytes

Total Files Listed:
9 File(s) 1,929,216 bytes
0 Dir(s) 15,070,969,856 bytes free

#6 garmanma

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Posted 06 November 2009 - 07:34 PM

I recommend following these instructions and submit a DDS / HJT log



Please read the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log". If you cannot complete a step, then skip it and continue with the next. In Step 6 there are instructions for downloading and running DDS which will create a Pseudo HJT Report as part of its log.

There will also be instructions to create a Root Repeal Log

When you have done that, post your log in the HijackThis Logs and Malware Removal forum, NOT here, for assistance by the HJT Team Experts. A member of the Team will walk you through, step by step, on how to clean your computer. If you post your log back in this thread, the response from the HJT Team will be delayed because your post will have to be moved. This means it will fall in line behind any others posted that same day.

The HJT team is very busy and it will take awhile to get to your post
Please be patient and good luck
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter

#7 Orange Blossom

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Posted 07 November 2009 - 07:29 PM

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/t/269748/infected-with-worm-identified-by-avg-as-tanatospdropper/ you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

Please be patient. It may take several days, up to two weeks perhaps less, to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :thumbsup:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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