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Removal instructions for MyComGuard

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#1
Metallica

Metallica

    Spyware Veteran

  • GeekU Moderator
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Content is republished with permission from Malwarebytes.

What is MyComGuard?

The Malwarebytes research team has determined that MyComGuard is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with MyComGuard?

This is how the main screen of the rogue application looks:

Posted Image

You will find this icon in your taskbar:

Posted Image

And see these warnings:

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How did MyComGuard get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was downloaded from their website.

How do I remove MyComGuard?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.
  • Please download Malwarebytes' Anti-Malware to your desktop.
  • Double-click mbam-setup.exe and follow the prompts to install the program.
  • At the end, be sure a check-mark is placed next to the following:

    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
  • If an update is found, it will download and install the latest version.
  • Once the program has loaded, select Perform quick scan, then click Scan.
  • When the scan is complete, click OK, then Show Results to view the results.
  • Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.
  • When completed, a log will open in Notepad. The rogue application should now be gone.

Is there anything else I need to do to get rid of MyComGuard?
  • No, Malwarebytes' Anti-Malware removes MyComGuard completely.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the MyComGuard rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

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Technical details for experts

Signs in a HijackThis log:
C:\Program Files\MyComGuard\MyComGuard.exe

O2 - BHO: MYCOMGUARD Class - {BFD47A2B-8F47-4eee-BA93-01ED4C4C8534} - C:\Program Files\MyComGuard\MyComGuardblk.dll
O4 - HKCU\..\Run: [MyComGuard] "C:\Program Files\MyComGuard\launcher.exe" "C:\Program Files\MyComGuard\MyComGuardup.exe"

Alterations made by the installer:
File System
  ===============
	Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\MyComGuard
	  Adds the file MyComGuard.lnk"="18:45 06/03/10 1680 bytes
	  Adds the file MyComGuard Ȩ������.url"="18:45 06/03/10 117 bytes
	  Adds the file MyComGuard ����.lnk"="18:45 06/03/10 1407 bytes
	Adds the folder C:\Program Files\MyComGuard
	  Adds the file uninstall.exe"="18:45 06/03/10 76191 bytes
	  Adds the file searced.log"="18:51 06/03/10 32 bytes
	  Adds the file MyComGuardup.exe"="01:58 23/02/10 204887 bytes
	  Adds the file MyComGuardres.dll"="01:58 23/02/10 565248 bytes
	  Adds the file MyComGuardFunc.dll"="01:58 23/02/10 57344 bytes
	  Adds the file MyComGuardblk.dll"="03:39 03/03/10 151552 bytes
	  Adds the file MyComGuard.exe"="12:43 25/02/10 512000 bytes
	  Adds the file launcher.exe"="08:42 21/12/09 43008 bytes
	Adds the folder C:\Program Files\MyComGuard\data
	  Adds the file Enc_MCGSiteBase.mc"="18:46 06/03/10 256 bytes
	  Adds the file Enc_MCGCode.ss"="18:49 06/03/10 1865216 bytes

  Registry
  ===============
	[HKEY_CLASSES_ROOT\MYCOMGUARD]
	  "(Default)"="'MYCOMGUARD Class'"
	[HKEY_CLASSES_ROOT\MYCOMGUARD\CLSID]
	  "(Default)"="'{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}'"
	[HKEY_CLASSES_ROOT\MYCOMGUARD.1]
	  "(Default)"="'MYCOMGUARD Class'"
	[HKEY_CLASSES_ROOT\MYCOMGUARD.1\CLSID]
	  "(Default)"="'{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}'"
	[HKEY_CLASSES_ROOT\ObCommunicationManager]
	  "(Default)"="'ObCommunicationManager Component'"
	[HKEY_CLASSES_ROOT\ObCommunicationManager\CurVer]
	  "(Default)"="'ObCommunicationManager.1'"
	[HKEY_CLASSES_ROOT\ObCommunicationManager\CLSID]
	  "(Default)"="'{B9B3DB12-BD64-11D2-9D65-00C04F7F8935}'"
	[HKEY_CLASSES_ROOT\ObCommunicationManager.1]
	  "(Default)"="'ObCommunicationManager Component'"
	[HKEY_CLASSES_ROOT\ObCommunicationManager.1\CLSID]
	  "(Default)"="'{B9B3DB12-BD64-11D2-9D65-00C04F7F8935}'"
	[HKEY_CLASSES_ROOT\ObShellMainPane]
	  "(Default)"="'ObShellMainPane Component'"
	[HKEY_CLASSES_ROOT\ObShellMainPane\CurVer]
	  "(Default)"="'ObShellMainPane.1'"
	[HKEY_CLASSES_ROOT\ObShellMainPane\CLSID]
	  "(Default)"="'{2DD760C4-BB27-11D2-9D62-00C04F7F8935}'"
	[HKEY_CLASSES_ROOT\ObShellMainPane.1]
	  "(Default)"="'ObShellMainPane Component'"
	[HKEY_CLASSES_ROOT\ObShellMainPane.1\CLSID]
	  "(Default)"="'{2DD760C4-BB27-11D2-9D62-00C04F7F8935}'"
	[HKEY_CLASSES_ROOT\ObWebBrowser]
	  "(Default)"="'ObWebBrowser Component'"
	[HKEY_CLASSES_ROOT\ObWebBrowser\CurVer]
	  "(Default)"="'ObWebBrowser.1'"
	[HKEY_CLASSES_ROOT\ObWebBrowser\CLSID]
	  "(Default)"="'{E87D5021-B8BC-11D2-9D5F-00C04F7F8935}'"
	[HKEY_CLASSES_ROOT\ObWebBrowser.1]
	  "(Default)"="'ObWebBrowser Component'"
	[HKEY_CLASSES_ROOT\ObWebBrowser.1\CLSID]
	  "(Default)"="'{E87D5021-B8BC-11D2-9D5F-00C04F7F8935}'"
	[HKEY_CLASSES_ROOT\CLSID\{2DD760C4-BB27-11D2-9D62-00C04F7F8935}]
	  "(Default)"="'ObShellMainPane Component'"
	[HKEY_CLASSES_ROOT\CLSID\{2DD760C4-BB27-11D2-9D62-00C04F7F8935}\VersionIndependentProgID]
	  "(Default)"="'ObShellMainPane'"
	[HKEY_CLASSES_ROOT\CLSID\{2DD760C4-BB27-11D2-9D62-00C04F7F8935}\ProgID]
	  "(Default)"="'ObShellMainPane.1'"
	[HKEY_CLASSES_ROOT\CLSID\{2DD760C4-BB27-11D2-9D62-00C04F7F8935}\InprocServer32]
	  "(Default)"="'C:\WINDOWS\system32\OOBE\MSOBSHEL.DLL'"
	[HKEY_CLASSES_ROOT\CLSID\{B9B3DB12-BD64-11D2-9D65-00C04F7F8935}]
	  "(Default)"="'ObCommunicationManager Component'"
	[HKEY_CLASSES_ROOT\CLSID\{B9B3DB12-BD64-11D2-9D65-00C04F7F8935}\VersionIndependentProgID]
	  "(Default)"="'ObCommunicationManager'"
	[HKEY_CLASSES_ROOT\CLSID\{B9B3DB12-BD64-11D2-9D65-00C04F7F8935}\ProgID]
	  "(Default)"="'ObCommunicationManager.1'"
	[HKEY_CLASSES_ROOT\CLSID\{B9B3DB12-BD64-11D2-9D65-00C04F7F8935}\InprocServer32]
	  "(Default)"="'C:\WINDOWS\system32\OOBE\MSOBCOMM.DLL'"
	[HKEY_CLASSES_ROOT\CLSID\{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}]
	  "(Default)"="'MYCOMGUARD Class'"
	[HKEY_CLASSES_ROOT\CLSID\{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}\VersionIndependentProgID]
	  "(Default)"="'MYCOMGUARD'"
	[HKEY_CLASSES_ROOT\CLSID\{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}\ProgID]
	  "(Default)"="'MYCOMGUARD.1'"
	[HKEY_CLASSES_ROOT\CLSID\{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}\InprocServer32]
	  "ThreadingModel"="'Apartment'"
	  "(Default)"="'C:\Program Files\MyComGuard\MyComGuardblk.dll'"
	[HKEY_CLASSES_ROOT\CLSID\{E87D5021-B8BC-11D2-9D5F-00C04F7F8935}]
	  "(Default)"="'ObWebBrowser Component'"
	[HKEY_CLASSES_ROOT\CLSID\{E87D5021-B8BC-11D2-9D5F-00C04F7F8935}\VersionIndependentProgID]
	  "(Default)"="'ObWebBrowser'"
	[HKEY_CLASSES_ROOT\CLSID\{E87D5021-B8BC-11D2-9D5F-00C04F7F8935}\ProgID]
	  "(Default)"="'ObWebBrowser.1'"
	[HKEY_CLASSES_ROOT\CLSID\{E87D5021-B8BC-11D2-9D5F-00C04F7F8935}\InprocServer32]
	  "(Default)"="'C:\WINDOWS\system32\OOBE\MSOBWEB.DLL'"
	[HKEY_CLASSES_ROOT\Interface\{67C9200E-E8BA-4B9E-877E-F74B7DB66D38}]
	  "(Default)"="'ISOSBHO'"
	[HKEY_CLASSES_ROOT\Interface\{67C9200E-E8BA-4B9E-877E-F74B7DB66D38}\TypeLib]
	  "Version"="'1.0'"
	  "(Default)"="'{45546889-0C99-49F3-9C86-CEC8588FD274}'"
	[HKEY_CLASSES_ROOT\Interface\{67C9200E-E8BA-4B9E-877E-F74B7DB66D38}\ProxyStubClsid32]
	  "(Default)"="'{00020424-0000-0000-C000-000000000046}'"
	[HKEY_CLASSES_ROOT\Interface\{67C9200E-E8BA-4B9E-877E-F74B7DB66D38}\ProxyStubClsid]
	  "(Default)"="'{00020424-0000-0000-C000-000000000046}'"
	[HKEY_CLASSES_ROOT\TypeLib\{45546889-0C99-49F3-9C86-CEC8588FD274}\1.0]
	  "(Default)"="'MyComGuardblk 1.0 Type Library'"
	[HKEY_CLASSES_ROOT\TypeLib\{45546889-0C99-49F3-9C86-CEC8588FD274}\1.0\HELPDIR]
	  "(Default)"="'C:\Program Files\MyComGuard\'"
	[HKEY_CLASSES_ROOT\TypeLib\{45546889-0C99-49F3-9C86-CEC8588FD274}\1.0\FLAGS]
	  "(Default)"="'0'"
	[HKEY_CLASSES_ROOT\TypeLib\{45546889-0C99-49F3-9C86-CEC8588FD274}\1.0\0\win32]
	  "(Default)"="'C:\Program Files\MyComGuard\MyComGuardblk.dll'"
	[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{BFD47A2B-8F47-4eee-BA93-01ED4C4C8534}]
	  "NoExplorer"="1"
	  "(Default)"="'MYCOMGUARD Class'"
	[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyComGuard]
	  "NoRepair"="1"
	  "NoModify"="1"
	  "UninstallString"="C:\Program Files\MyComGuard\uninstall.exe"
	  "DisplayName"="'MyComGuard'"
	[HKEY_CURRENT_USER\Software\MyComGuard]
	  "UPDATED_BADSITE"="'20100306'"
	  "UPDATED_BADCODE"="'20100306'"
	  "COUNTDATE"="'20100306'"
	  "INSTALL_DATE"="'2010-03-06'"
	  "COMPANY"="'MyComGuard'"
	  "DELAY"="'1'"
	  "PKLOG"=""
	  "COMPRESSEDVER"="'2005010100'"
	  "ACTIVEDBVER"="'2005010100'"
	  "BADSITEVER"="'2007032100'"
	  "BADCODEVER"="'2009102803'"
	  "HOMEPAGE"="'http://www.mycomguard.com'"
	  "AutoLogin"="'Y'"
	  "UPDATERVER"="'1.01'"
	  "APPVER"="'1.01'"
	  "Dir"="'C:\Program Files\MyComGuard'"
	[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
	  "MyComGuard"="C:\Program Files\MyComGuard\launcher.exe" "C:\Program Files\MyComGuard\MyComGuardup.exe"

Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware 1.44
Database version: 3829
Windows 5.1.2600 Service Pack 2
Internet Explorer 6.0.2900.2180

3/6/2010 6:58:42 PM
mbam-log-2010-03-06 (18-58-42).txt

Scan type: Quick Scan
Objects scanned: 103929
Time elapsed: 2 minute(s), 20 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 2
Registry Keys Infected: 8
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 3
Files Infected: 13

Memory Processes Infected:
C:\Program Files\MyComGuard\MyComGuard.exe (Rogue.MyComGuard) -> Unloaded process successfully.

Memory Modules Infected:
C:\Program Files\MyComGuard\MyComGuardFunc.dll (Rogue.MyComGuard) -> Delete on reboot.
C:\Program Files\MyComGuard\MyComGuardres.dll (Rogue.MyComGuard) -> Delete on reboot.

Registry Keys Infected:
HKEY_CLASSES_ROOT\mycomguard (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\TypeLib\{45546889-0c99-49f3-9c86-cec8588fd274} (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{67c9200e-e8ba-4b9e-877e-f74b7db66d38} (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{bfd47a2b-8f47-4eee-ba93-01ed4c4c8534} (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{bfd47a2b-8f47-4eee-ba93-01ed4c4c8534} (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\mycomguard.1 (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Software\MyComGuard (Rogue.MyComGuard) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyComGuard (Rogue.MyComGuard) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mycomguard (Rogue.MyComGuard) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
C:\Program Files\MyComGuard (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\data (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\MyComGuard (Rogue.MyComGuard) -> Quarantined and deleted successfully.

Files Infected:
C:\Program Files\MyComGuard\MyComGuardblk.dll (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\launcher.exe (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\MyComGuard.exe (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\MyComGuardFunc.dll (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\MyComGuardres.dll (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\MyComGuardup.exe (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\searced.log (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\uninstall.exe (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\data\Enc_MCGCode.ss (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Program Files\MyComGuard\data\Enc_MCGSiteBase.mc (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\MyComGuard\MyComGuard ����.lnk (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\MyComGuard\MyComGuard Ȩ������.url (Rogue.MyComGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\MyComGuard\MyComGuard.lnk (Rogue.MyComGuard) -> Quarantined and deleted successfully.

Note that some characters in the logs and the screenshots were not displayed properly, because I didn't have the Korean Language Pack installed.

As mentioned before the full version of Malwarebytes' Anti-Malware could have protected your computer against this threat.
We use different ways of protecting your computer(s):
  • Dynamically Blocks Malware Sites & Servers
  • Malware Execution Prevention
Save yourself the hassle and get protected.
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