Win32:malware-gen - system32 file

[annag]

Hi
I have a real issue with some type of malware. There are constant messages coming from avast saying malware detected. I have tried to copy and paste the message but it wont let me but it mentions
Win32:malware-gen and that it is a windows system32 file
object C:\windows\installer\...\8000000.@
(havent managed to get the rest)

Please help
Thanks
Anna

[Pondus]

follow this guide and attach (not copy and paste) logs from malwarebytes / OTL / aswMBR
http://forum.avast.com/index.php?topic=53253.0

[annag]

Hi
I have done the malware bytes and now doing the OTL - it is taking ages - about 15mins (I'm on a different computer) It seems to be going round in circles, creating restore point and then scanning newly created files and then doing same again. Is that right, am I just impatient?

Thanks

Anna

[annag]

Was me being impatient - got what you need. Please help!!!

MWB

Malwarebytes Anti-Malware 1.62.0.1300
www.malwarebytes.org

Database version: v2012.08.04.07

Windows 7 x64 NTFS
Internet Explorer 9.0.8112.16421
Peter :: PETER-PC [administrator]

Protection: Enabled

04/08/2012 20:58:10
mbam-log-2012-08-04 (20-58-10).txt

Scan type: Full scan (C:\|)
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 357938
Time elapsed: 51 minute(s), 59 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 5
C:\Users\Peter\AppData\Local\Temp\~!#1992.tmp (Trojan.Cridex) -> Quarantined and deleted successfully.
C:\Users\Peter\AppData\Local\Temp\~!#4AD1.tmp (Trojan.Lameshield) -> Quarantined and deleted successfully.
C:\Users\Peter\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\51\5af1cc33-7143934a (Exploit.Drop.COD) -> Quarantined and deleted successfully.
C:\Users\Peter\AppData\Roaming\scmog.dll (Trojan.Midhos) -> Quarantined and deleted successfully.
C:\Users\Peter\Dropbox\documents\FastDownload.exe (Affiliate.Downloader) -> Quarantined and deleted successfully.

(end)

[Pondus]

and aswMBR....

[annag]

swMBR version 0.9.9.1665 Copyright(c) 2011 AVAST Software
Run date: 2012-08-04 22:15:38
-----------------------------
22:15:38.315    OS Version: Windows x64 6.1.7600
22:15:38.315    Number of processors: 4 586 0x2505
22:15:38.331    ComputerName: PETER-PC  UserName: Peter
22:15:40.078    Initialize success
22:15:41.170    AVAST engine defs: 12080401
22:15:43.370    Disk 0 (boot) \Device\Harddisk0\DR0 -> \Device\Ide\IAAStorageDevice-1
22:15:43.370    Disk 0 Vendor: TOSHIBA_ GJ00 Size: 238475MB BusType: 3
22:15:43.385    Disk 0 MBR read successfully
22:15:43.401    Disk 0 MBR scan
22:15:43.401    Disk 0 Windows 7 default MBR code
22:15:43.432    Disk 0 Partition 1 00     27 Hidden NTFS WinRE NTFS        13312 MB offset 2048
22:15:43.463    Disk 0 Partition 2 80 (A) 07    HPFS/NTFS NTFS          100 MB offset 27265024
22:15:43.494    Disk 0 Partition 3 00     07    HPFS/NTFS NTFS       225061 MB offset 27469824
22:15:43.526    Disk 0 scanning C:\Windows\system32\drivers
22:15:50.671    Service scanning
22:16:13.682    Modules scanning
22:16:13.697    Disk 0 trace - called modules:
22:16:13.713    ntoskrnl.exe CLASSPNP.SYS disk.sys iaStor.sys hal.dll
22:16:13.728    1 nt!IofCallDriver -> \Device\Harddisk0\DR0[0xfffffa8006fe9060]
22:16:13.744    3 CLASSPNP.SYS[fffff88001a9843f] -> nt!IofCallDriver -> \Device\Ide\IAAStorageDevice-1[0xfffffa8004fec050]
22:16:14.306    AVAST engine scan C:\Windows
22:16:16.521    AVAST engine scan C:\Windows\system32
22:18:41.214    AVAST engine scan C:\Windows\system32\drivers
22:18:50.730    AVAST engine scan C:\Users\Peter
22:19:19.091    Disk 0 MBR has been saved successfully to "C:\Users\Peter\Documents\MBR.dat"
22:19:19.091    The log file has been saved successfully to "C:\Users\Peter\Documents\aswMBR.txt"

[essexboy]

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

• Under the Custom Scans/Fixes box at the bottom, paste in the following
  
  
  

  :OTL
  O3 - HKLM\..\Toolbar: (no name) - 10 - No CLSID value found.
  O3 - HKLM\..\Toolbar: (no name) - Locked - No CLSID value found.
  O3 - HKU\S-1-5-21-3684689662-3340981801-896951327-1001\..\Toolbar\WebBrowser: (no name) - {D4027C7F-154A-4066-A1AD-4243D8127440} - No CLSID value found.
  
  :Files
  ipconfig /flushdns /c
  C:\Windows\Installer\{39f48725-0431-6879-f8f9-f3d6f8f8cc0b}
  C:\Users\Peter\AppData\Local\{39f48725-0431-6879-f8f9-f3d6f8f8cc0b}
  
  :Commands
  [purity]
  [resethosts]
  [emptytemp]
  [CREATERESTOREPOINT]
  [Reboot]
• Then click the Run Fix button at the top
  
• Let the program run unhindered, reboot the PC when it is done
• Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

THEN

Download and Install Combofix
 
Download ComboFix from one of the following locations:
Link 1
Link 2
 
VERY IMPORTANT !!! Save ComboFix.exe to your Desktop
 
* IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

• Double click on ComboFix.exe & follow the prompts.
  
• Accept the disclaimer and allow to update if it asks

• When finished, it shall produce a log for you.
• Please include the C:\ComboFix.txt in your next reply.[/b]
  

Notes:
1. Do not mouse-click Combofix's window while it is running. That may cause it to stall.
2. Do not "re-run" Combofix. If you have a problem, reply back for further instructions.
3.  If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.


Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

FINALLY

run farbar service scanner



Tick "All" options.
Press "Scan".
It will create a log (FSS.txt) in the same directory the tool is run.

Please copy and paste the log to your reply.

[annag]

Farbar Service Scanner Version: 04-08-2012 01
Ran by Peter (administrator) on 04-08-2012 at 22:59:29
Running from "C:\Users\Peter\Downloads"
Microsoft Windows 7 Professional   (X64)
Boot Mode: Normal
****************************************************************

Internet Services:
============

Connection Status:
==============
Localhost is accessible.
LAN connected.
Google IP is accessible.
Google.com is accessible.
Yahoo IP is accessible.
Yahoo.com is accessible.


Windows Firewall:
=============
mpsdrv Service is not running. Checking service configuration:
The start type of mpsdrv service is OK.
The ImagePath of mpsdrv service is OK.

MpsSvc Service is not running. Checking service configuration:
Checking Start type: ATTENTION!=====> Unable to open MpsSvc registry key. The service key does not exist.
Checking ImagePath: ATTENTION!=====> Unable to open MpsSvc registry key. The service key does not exist.
Checking ServiceDll: ATTENTION!=====> Unable to open MpsSvc registry key. The service key does not exist.


Firewall Disabled Policy:
==================


System Restore:
============

System Restore Disabled Policy:
========================


Action Center:
============

Windows Update:
============

Windows Autoupdate Disabled Policy:
============================


Windows Defender:
==============

Other Services:
==============

sharedaccess Service is not running. Checking service configuration:
Checking Start type: ATTENTION!=====> Unable to retrieve start type of sharedaccess. The value does not exist.
Checking ImagePath: ATTENTION!=====> Unable to retrieve ImagePath of sharedaccess. The value does not exist.
Unable to retrieve ServiceDll of sharedaccess. The value does not exist.


File Check:
========
C:\Windows\System32\nsisvc.dll => MD5 is legit
C:\Windows\System32\drivers\nsiproxy.sys => MD5 is legit
C:\Windows\System32\dhcpcore.dll => MD5 is legit
C:\Windows\System32\drivers\afd.sys
[2012-07-25 20:41] - [2011-12-28 04:59] - 0499200 ____A (Microsoft Corporation) DB9D6C6B2CD95A9CA414D045B627422E

C:\Windows\System32\drivers\tdx.sys => MD5 is legit
C:\Windows\System32\Drivers\tcpip.sys
[2012-07-25 20:43] - [2012-03-30 12:09] - 1895280 ____A (Microsoft Corporation) 624C5B3AA4C99B3184BB922D9ECE3FF0

C:\Windows\System32\dnsrslvr.dll => MD5 is legit
C:\Windows\System32\mpssvc.dll
[2009-07-14 01:09] - [2009-07-14 02:41] - 0824832 ____A (Microsoft Corporation) AECAB449567D1846DAD63ECE49E893E3

C:\Windows\System32\bfe.dll => MD5 is legit
C:\Windows\System32\drivers\mpsdrv.sys => MD5 is legit
C:\Windows\System32\SDRSVC.dll
[2009-07-14 00:36] - [2009-07-14 02:41] - 0170496 ____A (Microsoft Corporation) 765A27C3279CE11D14CB9E4F5869FCA5

C:\Windows\System32\vssvc.exe => MD5 is legit
C:\Windows\System32\wscsvc.dll => MD5 is legit
C:\Windows\System32\wbem\WMIsvc.dll => MD5 is legit
C:\Windows\System32\wuaueng.dll => MD5 is legit
C:\Windows\System32\qmgr.dll => MD5 is legit
C:\Windows\System32\es.dll => MD5 is legit
C:\Windows\System32\cryptsvc.dll
[2012-07-25 20:44] - [2012-04-24 06:59] - 0182272 ____A (Microsoft Corporation) F02786B66375292E58C8777082D4396D

C:\Program Files\Windows Defender\MpSvc.dll => MD5 is legit
C:\Windows\System32\ipnathlp.dll => MD5 is legit
C:\Windows\System32\svchost.exe => MD5 is legit
C:\Windows\System32\rpcss.dll => MD5 is legit


**** End of log ****

Think it has worked - seems to be working fine
Thank you very much for your help.

[essexboy]

A few repairs to do now I feel

Could you attach the combofix log please

Download the following files by right clicking the link and selecting "Save Target As ..."  Save to your desktop

https://dl.dropbox.com/u/73555776/mpssvc7.reg
https://dl.dropbox.com/u/73555776/SharedAccess7.reg

Once on the desktop right click each in turn and select merge
Accept the warning
Reboot

Any outstanding problems ?

[annag]

All seems fine - thank you so much

Have done that but dont think I saved the combofix log - can't find it, is it essential. This is my first time doing "proper computer" stuff - even if I am only doing what I'm told I feel very proud of myself!

[Pondus]

you should find it here  C:\ComboFix.txt

[annag]

No, no there and searched as well - sorry

[essexboy]

Could you re-run Combofix please and attach the log... Also how is the computer at the moment ?

[annag]

Computer is great - all good. Thanks

[essexboy]

Subject to no further problems   

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems 

Now the best part of the day ----- Your log now appears clean  :thumbsup:

A good workman always cleans up after himself so..The following will implement some cleanup procedures as well as reset  System Restore points:

Run OTL

• Under the Custom Scans/Fixes box at the bottom, paste in the following
  

  :Commands
  [resethosts]
  [emptytemp]
  [Reboot]

• Then click the Run Fix button at the top
  
• Let the program run unhindered, reboot the PC when it is done

Remove ComboFix

• Hold down the Windows key + R on your keyboard. This will display the Run dialogue box
  
• In the Run box, type in ComboFix /Uninstall (Notice the space between the "x" and "/") then click OK
  
  
  
  
• Follow the prompts on the screen
• A message should appear confirming that ComboFix was uninstalled

Run OTL and hit the cleanup button.  It will remove all the programmes we have used plus itself. 

We will now confirm that your hidden files are set to that, as some of the tools I use will change that

• Go to control panel
• Select folder options (Appearance > Folder options in category view)
• Select the View Tab.
• Under the Hidden files and folders heading select Do not show hidden files and folders.
  
• Click Yes to confirm.
• Click OK.

Your Java is out of date. Older versions have vulnerabilities that malware can use to infect your system.
Please follow these steps to remove older version of Java components and upgrade the application.

 Upgrading Java:

• Go to this site  and click Do I have Java
  
• It will check your current version and then offer to update to the latest version

SPRING CLEAN

To manually create a new Restore Point
 

• Go to Control Panel and select System
  
• Select System
  
• On the left select System Protection and accept the warning if you get one
  
• Select System Protection Tab
  
• Select Create at the bottom
  
• Type in a name i.e. Clean
• Select Create
  

Now we can purge the infected ones

• GoStart > All programs > Accessories > system tools
  
• Right click Disc cleanup and select run as administrator
  
• Select Your main drive and accept the warning if you get one
  
• For a few moments the system will make some calculations
• Select the More Options tab
  
• In the System Restore and Shadow Backups select Clean up
  
• Select Delete on the pop up
  
• Select OK
• Select Delete

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

Malwarebytes.  Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit

• Microsoft Windows Update

To learn more about how to protect yourself while on the internet read our little guide  How did I get infected in the first place ?

Keep safe  :wave: