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View Full Version : Manual Removal Guide for Win32.Agent.azk



Friday
2008-11-29, 22:45
The following instructions have been created to help you to get rid of "Win32.Agent.azk" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.

If this guide was helpful to you, please consider donating towards this site (http://www.safer-networking.org/index.php?page=donate).

Threat Details:

Categories:
trojan

Description:
Win32.Agent.azk installs library and executable files into system folder, disguises as "CTDrive","DllRunning", "syswin" to run at system start and eats up system resources.
Also downloads KeyGenGuru, SearchToolbarCorp.ToolbarVision, Smitfraud-C., Smitfraud-C.Toolbar888

Removal Instructions:

Autorun:

Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd), RunAlyzer (http://www.safer-networking.org/index.php?page=runalyzer) or msconfig.exe to remove the following autorun entries.

Entries named "CTDrive" and pointing to "rundll32.exe <$SYSDIR>\*.dll,startup".
Entries named "DllRunning" and pointing to "rundll32.exe <$SYSDIR>\*.dll,startup".
Entries named "syswin" and pointing to "<$SYSDIR>\*.exe".

Important: There are more autorun entries that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.

Files:

Please use Windows Explorer or another file manager of your choice to locate and delete these files.

The file at "<$SYSDIR>\svchosts.exe".
Make sure you set your file manager to display hidden and system files. If Win32.Agent.azk uses rootkit technologies, use our RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!

Important: There are more files that cannot be safely described in simple words. Please use Spybot-S&D (http://www.safer-networking.org/index.php?page=spybotsd) to remove them.

Registry:

You can use regedit.exe (included in Windows) to locate and delete these registry entries.

Delete the registry key "winyvo32" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\".
Delete the registry value "f" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\".
Delete the registry key "COM Messages" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry value "<$LOCALSETTINGS>\Temp\win17.tmp.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry key "COM Messages" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry value "<$LOCALSETTINGS>\Temp\win17.tmp.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
Delete the registry key "COM Messages" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry value "<$LOCALSETTINGS>\Temp\win17.tmp.exe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\".
If Win32.Agent.azk uses rootkit technologies, use our RegAlyzer (http://www.safer-networking.org/index.php?page=regalyzer), RootAlyzer (http://forums.spybot.info/downloads.php?id=8) or our Total Commander anti-rootkit plugins (http://forums.spybot.info/downloads.php?id=3).

Final Words:

If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
Please read these instructions (http://forums.spybot.info/showthread.php?t=288) before requesting assistance,
Then start your own thread in the Malware Removal Forum (http://forums.spybot.info/forumdisplay.php?f=22) where a volunteer analyst will advise you as soon as available.