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What is WinGuard?

The Malwarebytes research team has determined that WinGuard 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 WinGuard?

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

main.png

You will find these icons on your desktop and in your taskbar:

icons.png

And see these warnings:

warning1.png

warning2.png

How did WinGuard get on my computer?

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

How do I remove WinGuard?

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 WinGuard?

  • No, Malwarebytes' Anti-Malware removes WinGuard 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 WinGuard rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

protection1.png

protection.png

Technical details for experts

Signs in a HijackThis log:

C:\Program Files\winguard\winguard.exe

O2 - BHO: WGBLKBHO Class - {C1C47C65-10B1-4095-9116-B9B60B56362F} - C:\Program Files\winguard\wgblock.dll
O4 - HKCU\..\Run: [winguard] "C:\Program Files\winguard\launcher.exe" "C:\Program Files\winguard\winguardup.exe"

Alterations made by the installer:

  File System
===============
In the existing folder C:\Documents and Settings\{username}\Desktop
Adds the file ??????.lnk"="21:19 18/05/10 1638 bytes
Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\winguard
Adds the file ??????.lnk"="21:19 18/05/10 1650 bytes
Adds the file ?????? ???????.lnk"="21:19 18/05/10 682 bytes
Adds the file ?????? ????.lnk"="21:19 18/05/10 1389 bytes
Adds the folder C:\Program Files\winguard
Adds the file ??????.url"="21:19 18/05/10 51 bytes
Adds the file winguardup.exe"="04:50 11/09/09 200704 bytes
Adds the file winguardres.dll"="09:46 26/03/10 405504 bytes
Adds the file winguard.exe"="09:49 26/03/10 708681 bytes
Adds the file wgclean.dll"="02:04 05/06/09 57426 bytes
Adds the file wgblock.dll"="02:11 05/06/09 221184 bytes
Adds the file uninstall.exe"="21:19 18/05/10 79844 bytes
Adds the file searced.log"="21:21 18/05/10 117 bytes
Adds the file launcher.exe"="03:42 15/06/09 42496 bytes
Adds the folder C:\Program Files\winguard\data
Adds the file Enc_SiteBase.mc"="21:20 18/05/10 256 bytes
Adds the file Enc_Code.ss"="21:20 18/05/10 868608 bytes

Registry
===============
[HKEY_CLASSES_ROOT\WGBLKBHO]
"(Default)"="'WGBLKBHO Class'"
[HKEY_CLASSES_ROOT\WGBLKBHO\CLSID]
"(Default)"="'{C1C47C65-10B1-4095-9116-B9B60B56362F}'"
[HKEY_CLASSES_ROOT\WGBLKBHO.1]
"(Default)"="'WGBLKBHO Class'"
[HKEY_CLASSES_ROOT\WGBLKBHO.1\CLSID]
"(Default)"="'{C1C47C65-10B1-4095-9116-B9B60B56362F}'"
[HKEY_CLASSES_ROOT\CLSID\{C1C47C65-10B1-4095-9116-B9B60B56362F}]
"(Default)"="'WGBLKBHO Class'"
[HKEY_CLASSES_ROOT\CLSID\{C1C47C65-10B1-4095-9116-B9B60B56362F}\VersionIndependentProgID]
"(Default)"="'WGBLKBHO'"
[HKEY_CLASSES_ROOT\CLSID\{C1C47C65-10B1-4095-9116-B9B60B56362F}\ProgID]
"(Default)"="'WGBLKBHO.1'"
[HKEY_CLASSES_ROOT\CLSID\{C1C47C65-10B1-4095-9116-B9B60B56362F}\InprocServer32]
"ThreadingModel"="'Apartment'"
"(Default)"="'C:\Program Files\winguard\wgblock.dll'"
[HKEY_CLASSES_ROOT\Interface\{1F0D5A8D-81B0-4416-9DDF-72B97AE52196}]
"(Default)"="'ISOSBHO'"
[HKEY_CLASSES_ROOT\Interface\{1F0D5A8D-81B0-4416-9DDF-72B97AE52196}\TypeLib]
"Version"="'1.0'"
"(Default)"="'{8A112DD9-1812-43F7-B6D4-C342C780AB18}'"
[HKEY_CLASSES_ROOT\Interface\{1F0D5A8D-81B0-4416-9DDF-72B97AE52196}\ProxyStubClsid32]
"(Default)"="'{00020424-0000-0000-C000-000000000046}'"
[HKEY_CLASSES_ROOT\Interface\{1F0D5A8D-81B0-4416-9DDF-72B97AE52196}\ProxyStubClsid]
"(Default)"="'{00020424-0000-0000-C000-000000000046}'"
[HKEY_CLASSES_ROOT\TypeLib\{8A112DD9-1812-43F7-B6D4-C342C780AB18}\1.0]
"(Default)"="'SSBHO 1.0 Type Library'"
[HKEY_CLASSES_ROOT\TypeLib\{8A112DD9-1812-43F7-B6D4-C342C780AB18}\1.0\HELPDIR]
"(Default)"="'C:\Program Files\winguard\'"
[HKEY_CLASSES_ROOT\TypeLib\{8A112DD9-1812-43F7-B6D4-C342C780AB18}\1.0\FLAGS]
"(Default)"="'0'"
[HKEY_CLASSES_ROOT\TypeLib\{8A112DD9-1812-43F7-B6D4-C342C780AB18}\1.0\0\win32]
"(Default)"="'C:\Program Files\winguard\wgblock.dll'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{C1C47C65-10B1-4095-9116-B9B60B56362F}]
"NoExplorer"="1"
"(Default)"="'WGBLKBHO Class'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\winguard]
"NoRepair"="1"
"NoModify"="1"
"UninstallString"="'"C:\Program Files\winguard\uninstall.exe"'"
"DisplayName"="'??????'"
[HKEY_CURRENT_USER\Software\winguard]
"UPDATED_BADSITE"="'20100518'"
"UPDATED_BADCODE"="'20100518'"
"COUNTDATE"="'20100518'"
"INSTALL_DATE"="'2010-05-18'"
"COMPANY"="'default'"
"DELAY"="'1'"
"PKLOG"=""
"COMPRESSEDVER"="'2005010100'"
"ACTIVEDBVER"="'2005010100'"
"BADSITEVER"="'2007032100'"
"BADCODEVER"="'2010042201'"
"HOMEPAGE"="'http://www.winguard.co.kr'"
"AutoLogin"="'Y'"
"UPDATERVER"="'1.02'"
"APPVER"="'1.04'"
"Dir"="'C:\Program Files\winguard'"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
"winguard"="'"C:\Program Files\winguard\launcher.exe" "C:\Program Files\winguard\winguardup.exe"'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4113

Windows 5.1.2600 Service Pack 2
Internet Explorer 6.0.2900.2180

5/18/2010 9:35:19 PM
mbam-log-2010-05-18 (21-35-19).txt

Scan type: Quick scan
Objects scanned: 106267
Time elapsed: 3 minute(s), 16 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 2
Registry Keys Infected: 9
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 3
Files Infected: 15

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

Memory Modules Infected:
C:\Program Files\winguard\wgclean.dll (Rogue.WinGuard) -> Delete on reboot.
C:\Program Files\winguard\winguardres.dll (Rogue.WinGuard) -> Delete on reboot.

Registry Keys Infected:
HKEY_CLASSES_ROOT\wgblkbho (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\TypeLib\{8a112dd9-1812-43f7-b6d4-c342c780ab18} (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{1f0d5a8d-81b0-4416-9ddf-72b97ae52196} (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{c1c47c65-10b1-4095-9116-b9b60b56362f} (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{c1c47c65-10b1-4095-9116-b9b60b56362f} (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{c1c47c65-10b1-4095-9116-b9b60b56362f} (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\wgblkbho.1 (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\winguard (Rogue.WinGuard) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\winguard (Rogue.WinGuard) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

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

Files Infected:
C:\Program Files\winguard\wgblock.dll (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\winguard\?????? ????.lnk (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\winguard\?????? ???????.lnk (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\winguard\??????.lnk (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\launcher.exe (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\searced.log (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\uninstall.exe (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\wgclean.dll (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\winguard.exe (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\winguardres.dll (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\winguardup.exe (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\??????.url (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\data\Enc_Code.ss (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Program Files\winguard\data\Enc_SiteBase.mc (Rogue.WinGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\??????.lnk (Rogue.WinGuard) -> Quarantined and deleted successfully.

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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