What is Dr. Guard?
The Malwarebytes research team has determined that Dr. Guard 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 Dr. Guard?
This is how the main screen of the rogue application looks:
You will find these icons on your desktop and in your taskbar:
And see these warnings:
How did Dr. Guard get on my computer?
Rogue programs use different methods for spreading themselves. This particular one was installed by a trojan.
Extra warning: this rogue tries to remove our program by triggering the uninstaller.
It does not matter what you do with this warning, it will trigger the uninstaller anyway.
Do not click OK in the prompt the uninstaller will display when it is run. Click "No" to stop the uninstall.
How do I remove Dr. Guard?
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 Dr. Guard?
- No, Malwarebytes' Anti-Malware removes Dr. Guard 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 Dr. Guard rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.
Technical details for experts
Signs in a HijackThis log:
C:\DOCUME~1\{username}\LOCALS~1\Temp\asr64_ldm.exe
C:\Program Files\Dr. Guard\drguard.exe
O4 - HKCU\..\Run: [asr64_ldm.exe] C:\DOCUME~1\{username}\LOCALS~1\Temp\asr64_ldm.exe
O4 - HKCU\..\Run: [Dr. Guard] "C:\Program Files\Dr. Guard\drguard.exe" -noscanAlterations made by the installer:
File System
===============
In the existing folder C:\Documents and Settings\All Users\Application Data
Adds the file fiosejgfse.dll"="20:13 02/03/10 524 bytes
In the existing folder C:\Documents and Settings\All Users\Desktop
Adds the file nudetube.com.lnk"="20:12 02/03/10 1597 bytes
Adds the file pornotube.com.lnk"="20:12 02/03/10 1601 bytes
Adds the file youporn.com.lnk"="20:12 02/03/10 1593 bytes
In the existing folder C:\Documents and Settings\{username}\Application Data\Microsoft\Internet Explorer\Quick Launch
Adds the file Dr. Guard.lnk"="20:05 02/03/10 670 bytes
In the existing folder C:\Documents and Settings\{username}\Desktop
Adds the file Dr. Guard Support.lnk"="20:05 02/03/10 1546 bytes
Adds the file Dr. Guard.lnk"="20:05 02/03/10 652 bytes
In the existing folder C:\Documents and Settings\{username}\Local Settings\Temp
Adds the file _iu14D2N.tmp"="08:27 16/02/10 702288 bytes
Adds the file 1.ico"="20:12 02/03/10 15086 bytes
Adds the file 2.ico"="20:12 02/03/10 15086 bytes
Adds the file 3.ico"="20:12 02/03/10 15086 bytes
Adds the file 4otjesjty.mof"="20:06 02/03/10 443 bytes
Adds the file asdEF.tmp"="20:05 02/03/10 0 bytes
Adds the file asr64_ldm.exe"="18:37 01/03/10 680448 bytes
Adds the file dhdhtrdhdrtr5y"="18:37 01/03/10 680448 bytes
Adds the file drg.dat"="20:07 02/03/10 136 bytes
Adds the file drgr.dat"="20:07 02/03/10 112 bytes
Adds the file uac2614.tmp"="20:05 02/03/10 5320056 bytes
Adds the file uac53a6.tmp"="20:05 02/03/10 36792 bytes
Adds the file uac5433.tmp"="20:05 02/03/10 15728 bytes
Adds the file uac5497.tmp"="20:05 02/03/10 30000 bytes
Adds the file uac54fb.tmp"="20:05 02/03/10 2596488 bytes
In the existing folder C:\Documents and Settings\{username}\Start Menu\Programs
Alters the file Remote Assistance.lnk
05:31 16/02/10 1599 bytes ==> 20:03 02/03/10 1599 bytes
Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard
Adds the file Update.lnk"="20:05 02/03/10 1538 bytes
Adds the file Settings.lnk"="20:05 02/03/10 1550 bytes
Adds the file Scan.lnk"="20:05 02/03/10 1526 bytes
Adds the file Dr. Guard.lnk"="20:05 02/03/10 664 bytes
Adds the file Dr. Guard Support.lnk"="20:05 02/03/10 1558 bytes
Adds the file Buy.lnk"="20:05 02/03/10 1520 bytes
Adds the file Activate.lnk"="20:05 02/03/10 1550 bytes
Adds the file About.lnk"="20:05 02/03/10 1532 bytes
Adds the folder C:\Program Files\Dr. Guard
Adds the file virus.mp3"="20:06 02/03/10 29256 bytes
Adds the file update.ico"="20:05 02/03/10 17542 bytes
Adds the file uninstall.exe"="20:05 02/03/10 53248 bytes
Adds the file splash.mp3"="20:06 02/03/10 75738 bytes
Adds the file settings.ico"="20:05 02/03/10 17542 bytes
Adds the file scan.ico"="20:05 02/03/10 17542 bytes
Adds the file help.ico"="20:05 02/03/10 15086 bytes
Adds the file drguard.exe"="20:05 02/03/10 2347008 bytes
Adds the file drghook.dll"="20:05 02/03/10 19968 bytes
Adds the file drgext.dll"="20:05 02/03/10 39424 bytes
Adds the file drg.db"="20:05 02/03/10 5320056 bytes
Adds the file buy.ico"="20:05 02/03/10 17542 bytes
Adds the file activate.ico"="20:05 02/03/10 17542 bytes
Adds the file about.ico"="20:05 02/03/10 17542 bytes
Registry
===============
[HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers\SimpleShlExt]
"(Default)"="'{5E2121EE-0300-11D4-8D3B-444553540000}'"
[HKEY_CLASSES_ROOT\CLSID\{5E2121EE-0300-11D4-8D3B-444553540000}]
"(Default)"="'SimpleShlExt Class'"
[HKEY_CLASSES_ROOT\CLSID\{5E2121EE-0300-11D4-8D3B-444553540000}\InprocServer32]
"ThreadingModel"="'Apartment'"
"(Default)"="'C:\PROGRA~1\DR1A09~1.GUA\drgext.dll'"
[HKEY_CLASSES_ROOT\Folder\shellex\ContextMenuHandlers\SimpleShlExt]
"(Default)"="'{5E2121EE-0300-11D4-8D3B-444553540000}'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Dr. Guard]
"Infected"="12"
"LastScan"="1267557077"
"InfectedFiles"="'C:\WINDOWS\System32\wmphoto.dll,C:\WINDOWS\System32\Drivers\bthport.sys,
C:\WINDOWS\System32\Drivers\raspptp.sys,C:\WINDOWS\System32\Wbem\CmdEvTgProv.dll,
C:\WINDOWS\System32\Wbem\wmipicmp.dll,C:\WINDOWS\KB977914.log,C:\WINDOWS\Fonts\8514sys.fon,
C:\WINDOWS\Fonts\smaller.fon,C:\WINDOWS\Help\charmap.hlp,C:\WINDOWS\Help\langbar.chm,
C:\WINDOWS\Help\sce.chm,'"
"dbsignsf"="'62577'"
"dbverf"="'1.1'"
"dbsigns"="'62577'"
"dbver"="'1.1'"
"swver"="'3.0'"
"Data"="':1920:2040:2160:2280:2400:2520:2640:2760:2880:3000:3120:'"
"GUID"="'845650458456491384564781'"
"FD"="0"
"SecStatus_5"="1"
"SecStatus_4"="1"
"SecStatus_3"="1"
"Settings_0"="1"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system]
"DisableTaskMgr"="1"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions\Approved]
"{5E2121EE-0300-11D4-8D3B-444553540000}"="'Dr. Guard extension'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Dr. Guard]
"URLInfoAbout"="'http://support.activesecuritys.org'"
"UninstallString"="'C:\Program Files\Dr. Guard\Uninstall.exe'"
"Publisher"="'Dr. Guard Software'"
"DisplayVersion"="'1.0'"
"DisplayName"="'Dr. Guard'"
"DisplayIcon"="'C:\Program Files\Dr. Guard\drguard.exe'"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableTaskMgr"="1"
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
"asr64_ldm.exe"="'C:\DOCUME~1\METALL~1\LOCALS~1\Temp\asr64_ldm.exe'"
"Dr. Guard"="'"C:\Program Files\Dr. Guard\drguard.exe" -noscan'"Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware 1.44
Database version: 3815
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702
3/2/2010 8:20:27 PM
mbam-log-2010-03-02 (20-20-27).txt
Scan type: Quick Scan
Objects scanned: 106712
Time elapsed: 3 minute(s), 20 second(s)
Memory Processes Infected: 2
Memory Modules Infected: 1
Registry Keys Infected: 2
Registry Values Infected: 2
Registry Data Items Infected: 2
Folders Infected: 2
Files Infected: 30
Memory Processes Infected:
C:\Documents and Settings\{username}\Local Settings\Temp\asr64_ldm.exe (Trojan.FakeAlert) -> Unloaded process successfully.
C:\Program Files\Dr. Guard\drguard.exe (Malware.Packer.Gen) -> Unloaded process successfully.
Memory Modules Infected:
C:\Program Files\Dr. Guard\drghook.dll (Malware.Packer.Gen) -> Delete on reboot.
Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\dr. guard (Rogue.DrGuard) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Dr. Guard (Rogue.DrGuard) -> Quarantined and deleted successfully.
Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dr. guard (Malware.Packer.Gen) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\asr64_ldm.exe (Trojan.FakeAlert) -> Quarantined and deleted successfully.
Registry Data Items Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr (Hijack.TaskManager) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr (Hijack.TaskManager) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
Folders Infected:
C:\Program Files\Dr. Guard (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard (Rogue.DrGuard) -> Quarantined and deleted successfully.
Files Infected:
C:\Documents and Settings\{username}\Local Settings\Temp\asr64_ldm.exe (Trojan.FakeAlert) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\drguard.exe (Malware.Packer.Gen) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\drghook.dll (Malware.Packer.Gen) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temp\dhdhtrdhdrtr5y (Trojan.FakeAlert) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\about.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\activate.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\buy.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\drg.db (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\drgext.dll (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\help.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\scan.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\settings.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\splash.mp3 (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\uninstall.exe (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\update.ico (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Program Files\Dr. Guard\virus.mp3 (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\About.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Activate.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Buy.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Dr. Guard Support.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Dr. Guard.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Scan.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Settings.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\Dr. Guard\Update.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Desktop\nudetube.com.lnk (Rogue.Link) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Desktop\pornotube.com.lnk (Rogue.Link) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Desktop\youporn.com.lnk (Rogue.Link) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\Dr. Guard Support.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\Dr. Guard.lnk (Rogue.DrGuard) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Application Data\Microsoft\Internet Explorer\Quick Launch\Dr. Guard.lnk (Rogue.DrGuard) -> 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
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