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Backdoor Trojan


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#1 distressed

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Posted 21 October 2008 - 10:14 AM

It started with Norton popups stating it prevented an attack from Backdoor.Trojan. When I went to the log on Norton's I noticed that it removed a lot (securityrisk.downldr, bloodhound.sonar.1, and backdoor trojans). Then my IE will just close without warning...and now I am getting Virtual memory low warnings. I am thinking Nortons did not get rid of my Trojan...again (sigh).

I've run VundoFix and nothing was found. I ran Nortons & adaware in regular mode & safe mode (nothing). I've ran spybot and it found 1 tracking cookie and Windows security disabled in the registry. I also ran ATF cleaner.

How do I find out what I have and remove it? I do have Hijack this, but I see I do not post logs here?

BC AdBot (Login to Remove)

 


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#2 quietman7

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Posted 21 October 2008 - 11:26 AM

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.

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#3 rigel

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Posted 21 October 2008 - 11:26 AM

Hi distressed and Welcome to BleepingComputer

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 distressed

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Posted 21 October 2008 - 12:23 PM

Wow it found a lot! However, Norton's is still popping up that Downloader has been detected by Auto-protect and was removed. It said that it virus scanner found Downloader and it was resolved as I was running the Mbam. All that I've visited was this website & outlook email since I ran it. The log file is:

Malwarebytes' Anti-Malware 1.29
Database version: 1302
Windows 5.1.2600 Service Pack 2

10/21/2008 1:11:14 PM
mbam-log-2008-10-21 (13-11-14).txt

Scan type: Quick Scan
Objects scanned: 70690
Time elapsed: 17 minute(s), 10 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 12
Registry Values Infected: 2
Registry Data Items Infected: 0
Folders Infected: 8
Files Infected: 31

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CLASSES_ROOT\popcaploader.popcaploaderctrl2 (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ModuleUsage\c:/windows/downloaded program files/popcaploader.dll (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\TypeLib\{c9c5deaf-0a1f-4660-8279-9edfad6fefe1} (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{e4e3e0f8-cd30-4380-8ce9-b96904bdefca} (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{fe8a736f-4124-4d9c-b4b1-3b12381efabe} (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{df780f87-ff2b-4df8-92d0-73db16a1543a} (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{df780f87-ff2b-4df8-92d0-73db16a1543a} (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\popcaploader.popcaploaderctrl2.1 (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\B-H-O (Trojan.BHO) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\xpre (Trojan.Downloader) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\jkwslist (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\FCOVM (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs\C:\WINDOWS\Downloaded Program Files\popcaploader.dll (Adware.PopCap) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellExecuteHooks\{e9bd0828-1fd9-410c-a50f-43ebe65d310f} (Trojan.Vundo) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
C:\Program Files\iWon (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonBar (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonBar\Cache (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonBar\History (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonBar\Settings (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\1.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache (Adware.iWon) -> Quarantined and deleted successfully.

Files Infected:
C:\WINDOWS\Downloaded Program Files\popcaploader.dll (Adware.PopCap) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonBar\History\search (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\PM3.ico (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Thumbs.db (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\1.bin\IWONSLOT.DLL (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\1.bin\PM3.ICO (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\1.bin\Thumbs.db (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\1.bin\UNINSTALL.INF (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A0179889 (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A01799F0.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A0179B77.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A0179D4C.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A0179E75.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A03A.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A134.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A23D.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A376.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A48F.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A5D7.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A6F1.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A839.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017A933.bin (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017AA3C.wav (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017B73C.wav (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017B8E2.wav (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\A017B9EC.wav (Adware.iWon) -> Quarantined and deleted successfully.
C:\Program Files\iWon\iWonSlot\Cache\files.ini (Adware.iWon) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\mcrh.tmp (Malware.Trace) -> Quarantined and deleted successfully.
C:\WINDOWS\cookies.ini (Malware.Trace) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\SrXGP5bk.exe.a_a (Trojan.Agent) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\t1H06a16.exe.a_a (Trojan.Agent) -> Quarantined and deleted successfully.

#5 FWT

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Posted 21 October 2008 - 12:27 PM

Try disabling system restore, reboot into safemode and try running malwarebytes again.

#6 quietman7

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Posted 21 October 2008 - 12:28 PM

Rescan again with MBAM (Quick Scan) in normal mode and check all items found for removal. Don't forgot to reboot afterwards. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. When done, click the Logs tab and copy/paste the contents of the new report in your next reply.

Please print out and follow these instructions: "How to use SDFix". <- for Windows 2000/XP ONLY.
When using this tool, you must use the Administrator's account or an account with "Administrative rights"
  • Disconnect from the Internet and temporarily disable your anti-virus, script blocking and any real time protection programs before performing a scan.
  • Please be patient as the scan may take up to 20 minutes to complete.
  • When the process is complete, the SDFix report log will open in Notepad and automatically be saved in the SDFix folder as Report.txt.
  • If SDFix is unable to run after rebooting from Safe Mode, run SDFix in either Mode, and type F, then press Enter for it to finish the final stage and produce the report.
  • The SDFix report log (Report.txt) will open in Notepad and automatically be saved in the SDFix folder.
  • Please copy and paste the contents of Report.txt in your next reply.
  • Be sure to re-enable you anti-virus and and other security programs before connecting to the Internet.

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#7 distressed

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Posted 21 October 2008 - 01:45 PM

Whew...finally finished. Here are my logs. I rebooted after mbam, then ran SDFix in safe mode after disconnecting from internet & disabling Nortons firewall & autoprotect...


Malwarebytes' Anti-Malware 1.29
Database version: 1302
Windows 5.1.2600 Service Pack 2

10/21/2008 1:57:05 PM
mbam-log-2008-10-21 (13-57-05).txt

Scan type: Quick Scan
Objects scanned: 70610
Time elapsed: 16 minute(s), 36 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)


SDFIX


SDFix: Version 1.236
Run by Administrator on Tue 10/21/2008 at 02:19 PM

Microsoft Windows XP [Version 5.1.2600]
Running From: C:\SDFix

Checking Services :


Restoring Default Security Values
Restoring Default Hosts File

Rebooting


Checking Files :

No Trojan Files Found






Removing Temp Files

ADS Check :



Final Check :

catchme 0.3.1361.2 W2K/XP/Vista - rootkit/stealth malware detector by Gmer, http://www.gmer.net
Rootkit scan 2008-10-21 14:32:19
Windows 5.1.2600 Service Pack 2 NTFS

scanning hidden processes ...

scanning hidden services & system hive ...

scanning hidden registry entries ...

scanning hidden files ...

scan completed successfully
hidden processes: 0
hidden services: 0
hidden files: 0


Remaining Services :




Authorized Application Key Export:

[HKEY_LOCAL_MACHINE\system\currentcontrolset\services\sharedaccess\parameters\firewallpolicy\standardprofile\authorizedapplications\list]

[HKEY_LOCAL_MACHINE\system\currentcontrolset\services\sharedaccess\parameters\firewallpolicy\domainprofile\authorizedapplications\list]

Remaining Files :



Files with Hidden Attributes :

Sun 17 Apr 2005 213 A.SHR --- "C:\BOOT.BAK"
Wed 8 May 2002 188 ...H. --- "C:\WINDOWS\Mmob864g5s3d6p.dll"
Thu 11 Oct 2007 5,903,928 A..H. --- "C:\Program Files\Picasa2\setup.exe"
Mon 5 Sep 2005 0 A.SH. --- "C:\WINDOWS\SMINST\HPCD.sys"
Mon 6 Aug 2007 6,447 ..SH. --- "C:\WINDOWS\system32\fhkmp.tmp"
Sun 29 Jul 2007 4,348 A.SH. --- "C:\Documents and Settings\All Users\DRM\DRMv1.bak"
Mon 25 Aug 2008 0 A.SH. --- "C:\Documents and Settings\All Users\DRM\Cache\Indiv01.tmp"
Tue 26 Aug 2008 0 A.SH. --- "C:\Documents and Settings\All Users\DRM\Cache\Indiv02.tmp"
Wed 8 Aug 2007 400 A..H. --- "C:\Program Files\Common Files\Symantec Shared\COH\COH32LU.reg"
Wed 8 Aug 2007 403 A..H. --- "C:\Program Files\Common Files\Symantec Shared\COH\COHDLU.reg"
Thu 7 Dec 2006 3,096,576 A..H. --- "C:\Documents and Settings\Compaq_Owner\Application Data\U3\temp\Launchpad Removal.exe"

Finished!

#8 quietman7

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Posted 21 October 2008 - 01:51 PM

How is your computer running now? Any more reports/signs of infection?
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#9 distressed

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Posted 21 October 2008 - 02:29 PM

So far so good!!! Thank you!!

#10 quietman7

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Posted 21 October 2008 - 02:43 PM

You're welcome.

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, then 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.

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#11 distressed

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Posted 21 October 2008 - 05:21 PM

This site is wonderful! I've created a new restore point and deleted the rest. Thanks so much again!

#12 quietman7

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Posted 21 October 2008 - 08:29 PM

You're welcome.

Tips to protect yourself against malware and reduce the potential for re-infection:
• "Simple and easy ways to keep your computer safe".
• "How did I get infected?, With steps so it does not happen again!".
• "Hardening Windows Security - Part 1 & Part 2".
• "IE Recommended Minimal Security Settings" - "How to Secure Your Web Browser".
• "Use Task Manager to close pop-up messages to safely exit malware attacks"

• Avoid gaming sites, underground web pages, pirated software sites, and peer-to-peer (P2P) file sharing programs. They are a security risk which can make your computer susceptible to a smörgåsbord of malware infections, remote attacks, exposure of personal information, and identity theft. Many malicious worms and Trojans spread across P2P file sharing networks, gaming and underground sites. Users visiting such pages may see innocuous-looking banner ads containing code which can trigger pop-up ads and Flash ads that install viruses, Trojans and spyware. Ads are a target for hackers because they offer a stealthy way to distribute malware to a wide range of Internet users. The best way to reduce the risk of infection is to avoid these types of web sites and not use any P2P applications. Read P2P Software User Advisories and Risks of File-Sharing Technology.
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#13 distressed

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Posted 22 October 2008 - 04:53 AM

I am still having problems. Norton's is popping up security issues regarding Sonar Bloodhound 1. Windows is popping up Virtual Memory low warnings. Is there anything else I can do?

#14 quietman7

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Posted 22 October 2008 - 08:54 AM

Did Norton provide a specific file name associated with this malware threat(s) and if so, where is it located (full file path) at on your system? Each security vendor uses their own naming conventions to identify various types of malware so it's difficult to determine exactly what has been detected or the nature of the infection without knowing more information about the file(s) involved.

"Your System is running low on virtual memory" error message
How can I fix "too little virtual memory" in Windows?
Virtual Memory in Windows XP Guide
What is "virtual memory?
How Virtual Memory Works
Tweaking your System Memory
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#15 distressed

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Posted 22 October 2008 - 09:15 AM

it is Bloodhound.Sonar.1 -- Norton says the affected areas are 1 file located at c:\documents and settings\compaq_owner\local settings\temp\ch06g4bk.exe and 2 processes with the same location

I have my virtual memory set properly (minimum @ 1.5 times and max @ 3 times). I did not have any problems until the trojan popups came about.

BTW...I ran Mbam again and came up with no affected areas.




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