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Found an ADS attatched to Windows directory


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#1 Dewd

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Posted 03 April 2009 - 01:03 AM

Hello, as stated in the title, I seem to have found an ADS attached to my C:\Windows directory (Vista SP1). I fisrt became aware of it while running adsspy in HJT so I then used LADS and it returned the same results. Kaspersky AV shows noting on full system scan.

ADS Spy returns - C:\Windows:3F63B532AD5207F4
-
LADs returns - Scanning directory C:\

size ADS in file
---------- ---------------------------------
Error 32 opening C:\pagefile.sys: The process cannot access the file because it is being u
sed by another process
24 C:\Windows\:3F63B532AD5207F4
-

My system seems to be running ok aside from being extremely slow when installing/uninstalling some programs and occasionally it seems to temporarily lag while displaying tooltips from hovering my mouse over files and text.

I'm posting here looking for insight on what this ADS could actually be, not just a quick fix if in fact, it happens to be malicious. Google returns no results for "3F63B532AD5207F4". Any help would be appreciated.

Thanks in advance
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#2 Guest_Jay-P VIP_*

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Posted 03 April 2009 - 01:11 AM

I will answer to you about what an ADS is. I will let someone else help you with the infection side of it.

An ADS is considered to be an alternate data stream.

Hackers use ADS's to plant an executable file maliciously in to another file without it being detected. Root kits are usually used by hackers as the main threat.

ADS is an original function of the NTFS file system.

#3 Dewd

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Posted 03 April 2009 - 01:16 AM

Thanks, for replying, I know what ADS stands for...Just looking for help on finding out what this ADS actually contains (3F63B532AD5207F4 doesn't really tell me much) and whether or not it should be there.

EDIT: I've been researching for three days as time permits and the most promising find so far is using strmext.dll to create a streams tab on the folders properties here: http://msdn.microsoft.com/en-us/library/ms810604.aspx

However I am not familiar with C++ and haven't been successful in my attempts at getting it to work.

Edited by Dewd, 03 April 2009 - 02:14 AM.

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#4 Dewd

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Posted 03 April 2009 - 03:17 AM

Update: Running a full scan in Ads Spy (unchecking quick scan) returns approximately 80-100 files with ADS most look like this
C:\Users\IllOne0One\AppData\Local\Microsoft\Windows Mail\0159066E-23002CBC.eml : OECustomProperty (797 bytes)
C:\Users\IllOne0One\AppData\Local\Microsoft\Windows Mail\02237DDE-C55774C3.eml : OECustomProperty (713 bytes)
C:\Users\IllOne0One\AppData\Local\Microsoft\Windows Mail\052C0A68-59980BDD.eml : OECustomProperty (653 bytes)
C:\Users\IllOne0One\AppData\Local\Microsoft\Windows Mail\06096784-7C67DE37.eml : OECustomProperty (596 bytes)
C:\Users\IllOne0One\AppData\Local\Microsoft\Windows Mail\06461AEF-AE96D1A5.eml : OECustomProperty (713 bytes)
C:\Users\IllOne0One\AppData\Local\Microsoft\Windows Mail\064B25E4-AE8DF67F.eml : OECustomProperty (632 bytes
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#5 DaChew

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Posted 03 April 2009 - 05:34 AM

Outlook Express email files also have a legit other data stream named OEStandardProperty


I've added OECustomProperty to the whitelist


author of rootanalyzer

Kasp is a good choice for your OS, HJT is not.

Please download Malwarebytes Anti-Malware (v1.35) and save it to your desktop.
alternate download link 1
alternate download link 2
If you have a previous version of MBAM, remove it via Add/Remove Programs and download a fresh copy.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself.
  • Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install. Alternatively, you can update through MBAM's interface from a clean computer, copy the definitions (rules.ref) located in C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware from that system to a usb stick or CD and then copy it to the infected machine.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you after scanning with MBAM. Please temporarily disable such programs or permit them to allow the changes.

http://www.bleepingcomputer.com/forums/t/114351/how-to-temporarily-disable-your-anti-virus-firewall-and-anti-malware-programs/
Chewy

No. Try not. Do... or do not. There is no try.

#6 Dewd

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Posted 03 April 2009 - 05:48 AM

Malwarebytes' Anti-Malware 1.35
Database version: 1936
Windows 6.0.6001 Service Pack 1

4/3/2009 5:47:22 AM
mbam-log-2009-04-03 (05-47-22).txt

Scan type: Quick Scan
Objects scanned: 55302
Time elapsed: 1 minute(s), 28 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

Followed instructions and rebooted. The strange thing here is that I never use windows mail, only browser-based web mail, yet theres a bunch of email messages some with picture attachments.

Edited by Dewd, 03 April 2009 - 05:53 AM.

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#7 DaChew

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Posted 03 April 2009 - 05:57 AM

only browser-based web mail


no live mail?
Just plain web mail?
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#8 Dewd

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Posted 03 April 2009 - 05:58 AM

Just GMail and Hotmail........
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#9 DaChew

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Posted 03 April 2009 - 06:00 AM

You didn't save and transfer anything from another computer when you built that beast?
Chewy

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#10 Dewd

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Posted 03 April 2009 - 06:03 AM

I hooked up my HD to my previous system about a year ago to troubleshoot a clicking sound, other than that everything has been new and attached to this system only.

EDIT: Make that almost two years ago

Edited by Dewd, 03 April 2009 - 06:06 AM.

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#11 DaChew

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Posted 03 April 2009 - 06:15 AM

IllOne0One


old computer or new computer or both?
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#12 Dewd

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Posted 03 April 2009 - 06:16 AM

new
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#13 DaChew

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Posted 03 April 2009 - 06:40 AM

Very mysterious, I don't have one eml file on my computer

If yours were infected I would have expected Kasp to find them?

http://filext.com/file-extension/EML

http://filext.com/faq/decode_eml_files.php
Chewy

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#14 Dewd

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Posted 03 April 2009 - 06:48 AM

There are 112 eml files alot of duplicates from four different names, all four are @mail.me, examples range from test, merry xmas, white paper, shopping, links, and various other subjests some have pictures attached to them such as a paintshopped map, and contain small talk some of which is about widgets..... I'm really not sure what to make of it other than some sort of cryptic conversation between people using my system as a medium.
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#15 DaChew

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Posted 03 April 2009 - 06:51 AM

Sounds like a broken set of mail infectors, do the dates correspond to when you had the hard drive slaved into the old computer or something newer?
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