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Suspicious Files


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11 replies to this topic

#1 brainlinq

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Posted 02 January 2009 - 02:43 PM

I helped a friend clean his computer of a bad virus (conhook) this weekend. We were able to clean it with help from these forums and by using combofix.

I decided to run combofix on my PC just to see what it found (as far as I knew it was uninfected, as I practice safe computing...). What concerns me is that it deleted the following files:

c:\documents and settings\All Users\Start Menu\Programs\Internet Explorer.lnk
c:\windows\system32\drivers\npf.sys
c:\windows\system32\MabryObj.dll
c:\windows\system32\packet.dll



It looks to me like these files were part of the WinPcap that was installed a while back.

I can post my combofix log and my hijackthis log if you think it is necessary.

I know I should have only run combofix when told to do so, but I wanted to show him what it looked like when run on a known clean PC.

Am I infected with anything I don't know about?

Thanks for the great site/forums and thanks in advance for any help you can provide.

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#2 SteelSlasher

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Posted 02 January 2009 - 03:11 PM

http://www.greatis.com/appdata/d/SysDir/m/mabryobj.dll.htm
for MabryObj.dll

http://www.threatexpert.com/files/packet.dll.html
packet.dll is rarely a threat by looking at this page but still

http://www.spywaredata.com/spyware/malware/npf.sys.php
by looking at the path it seems to be safe when comparing but i cant really promise anything

And personally I think that you shouldn't be using IE anyway let alone have a shortcut for it!!! GO FIREFOX!!!

#3 rigel

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Posted 02 January 2009 - 03:36 PM

Please note the message text in blue at the top of this forum.

ComboFix is an extremely powerful tool which should only be used when instructed to do so by someone who has been properly trained. ComboFix is intended by its creator to be "used under the guidance and supervision of an expert", NOT for private use. Please read Combofix's Disclaimer. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again.

To check for an infection, I recommend running Malwarebytes.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • 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.
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 you're using other security programs that detect registry changes (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#4 brainlinq

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Posted 03 January 2009 - 02:29 AM

Malwarebytes' Anti-Malware 1.31
Database version: 1599
Windows 5.1.2600 Service Pack 3

1/3/2009 1:28:39 AM
mbam-log-2009-01-03 (01-28-39).txt

Scan type: Quick Scan
Objects scanned: 70905
Time elapsed: 7 minute(s), 14 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
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:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#5 rigel

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Posted 03 January 2009 - 12:38 PM

Please download ATF Cleaner by Atribune & save it to your desktop.
alternate download link DO NOT use yet.

Please download and install SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the
    definitions before scanning by selecting "Check for Updates". (If you encounter
    any problems while downloading the updates, manually download them from
    here and
    unzip into the program's folder.
    )
  • Under the "Configuration and Preferences", click the Preferences... button.
  • Click the "General and Startup" tab, and under
    Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner
    Options
    , make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Double-click ATF-Cleaner.exe to run the program.
  • Under Main "Select Files to Delete" choose:
    Select All.
  • Click the Empty Selected button.
  • If you use Firefox browser click Firefox at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • If you use Opera browser click Opera at the top and choose: Select All
  • Click the Empty Selected button.
    If you would like to keep your saved passwords, please click No at the prompt.
  • Click Exit on the Main menu to close the program.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp"

ATF-Cleaner must be "Run as an Administrator".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#6 brainlinq

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Posted 03 January 2009 - 08:50 PM

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 01/03/2009 at 06:44 PM

Application Version : 4.24.1004

Core Rules Database Version : 3694
Trace Rules Database Version: 1670

Scan type : Complete Scan
Total Scan Time : 03:27:39

Memory items scanned : 178
Memory threats detected : 0
Registry items scanned : 8923
Registry threats detected : 0
File items scanned : 145875
File threats detected : 1

NotHarmful.Sysinternals Bluescreen Screen Saver
C:\WINDOWS\SYSTEM32\SYSINTERNALS BLUESCREEN.SCR

#7 rigel

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Posted 03 January 2009 - 08:54 PM

One more scan...

Please run the F-Secure Online Scanner
Note: This Scanner is for Internet Explorer Only!
Follow the Instruction here for installation.
Accept the License Agreement.
Once the ActiveX installs,Click Full System Scan
Once the download completes, the scan will begin automatically.
The scan will take some time to finish, so please be patient.
When the scan completes, click the Automatic cleaning (recommended) button.
Click the Show Report button and Copy&Paste the entire report in your next reply.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#8 brainlinq

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Posted 04 January 2009 - 10:14 AM

It says it found 2 (VNC and Radmin) But I use both of them for work.



Scanning Report
Sunday, January 04, 2009 01:23:34 - 09:00:25
Computer name: BLACJAKP670
Scanning type: Scan system for malware, rootkits
Target: C:\


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

Result: 2 malware found
RemoteAdmin.Win32.RAdmin (spyware)
System
RemoteAdmin.Win32.WinVNC-based (spyware)
System

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

Statistics
Scanned:
Files: 61169
System: 5302
Not scanned: 9
Actions:
Disinfected: 0
Renamed: 0
Deleted: 0
None: 2
Submitted: 0
Files not scanned:
C:\PAGEFILE.SYS
C:\WINDOWS\SYSTEM32\CONFIG\DEFAULT
C:\WINDOWS\SYSTEM32\CONFIG\SAM
C:\WINDOWS\SYSTEM32\CONFIG\SECURITY
C:\WINDOWS\SYSTEM32\CONFIG\SOFTWARE
C:\WINDOWS\SYSTEM32\CONFIG\SYSTEM
C:\DOCUMENTS AND SETTINGS\ALL USERS\APPLICATION DATA\MICROSOFT\VIRTUAL MACHINE HELPER\NETWORK SERVICE
C:\DOCUMENTS AND SETTINGS\ALL USERS\APPLICATION DATA\MICROSOFT\CRYPTO\RSA\MACHINEKEYS\34217015C0C78BC2A96D80E42F1B0FD7_3F70979E-183F-491E-92C8-AED90CEE4B7E
C:\DOCUMENTS AND SETTINGS\ALL USERS\APPLICATION DATA\MICROSOFT\CRYPTO\RSA\MACHINEKEYS\B63001987B8C40DF136B220AC23ECB19_3F70979E-183F-491E-92C8-AED90CEE4B7E

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

Options
Scanning engines:
F-Secure USS: 2.40.0
F-Secure Blacklight: 0.0.0
F-Secure Hydra: 2.8.8110, 2009-01-03
F-Secure Pegasus: 1.20.0, 2008-11-17
F-Secure AVP: 7.0.171, 2009-01-02
Scanning options:
Scan defined files: COM EXE SYS OV? BIN SCR DLL SHS HTM HTML HTT VBS JS INF VXD DO? XL? RTF CPL WIZ HTA PP? PWZ P?T MSO PIF . ACM ASP AX CNV CSC DRV INI MDB MPD MPP MPT OBD OBT OCX PCI TLB TSP WBK WBT WPC WSH VWP WML BOO HLP TD0 TT6 MSG ASD JSE VBE WSC CHM EML PRC SHB LNK WSF {* PDF ZL? XML ZIP XXX ANI AVB BAT CMD JPG LSP MAP MHT MIF PHP POT SWF WMF NWS TAR
Use Advanced heuristics

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

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F-Secure assumes no responsibility for material created or published by third parties that F-Secure World Wide Web pages have a link to. Unless you have clearly stated otherwise, by submitting material to any of our servers, for example by E-mail or via our F-Secure's CGI E-mail, you agree that the material you make available may be published in the F-Secure World Wide Pages or hard-copy publications. You will reach F-Secure public web site by clicking on underlined links. While doing this, your access will be logged to our private access statistics with your domain name.This information will not be given to any third party. You agree not to take action against us in relation to material that you submit. Unless you have clearly stated otherwise, by submitting material you warrant that F-Secure may incorporate any concepts described in it in the F-Secure products/publications without liability.

#9 DaChew

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Posted 04 January 2009 - 11:13 AM

Description
Winpcap is a library that listens to network traffic. It can be used for good purposes but is also used by many Spy Software applications. If the user is unaware that Winpcap is installed on their PC then they should know that their network usage is being tracked and it is recommended that they remove it. If the user is aware of the presence of Winpcap and appreciates its functionality then the user should not remove it.


here's the problem, there's a grey area between legitimate uses and illegitimate ones, you have to be the judge
Chewy

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

#10 rigel

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Posted 04 January 2009 - 01:34 PM

I agree... your computer appears clean. How is it running?

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#11 brainlinq

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Posted 04 January 2009 - 02:02 PM

Everything is working great, Thanks so much for your help! :thumbsup: :flowers:

I do have one problem with a laptop. I posted it here yesterday:

http://www.bleepingcomputer.com/forums/t/191766/antivirus-2009-vundo/


I know you guys are busy so I'll patiently wait my turn.

Thanks for this great service!

#12 rigel

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Posted 04 January 2009 - 02:06 PM

You are very welcome. I wish I could help you with the laptop, but that area is reserved for the HJT team only. You are in good hands there, it is just busy in the HJT forum. Be patient and the help you receive will be worth it in the end :thumbsup:

If there are no more problems or signs of infection, you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok"
  • Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" Tab.
  • Click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Safe surfing!

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith





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