Friday
2008-11-30, 14:32
The following instructions have been created to help you to get rid of "Stud.A" 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:
adware
Description:
Stud.A installs a library in the system directory and also an Browser Helper Object which is started on every Internet Explorer startup. It connects to advertising servers without user consent.
Removal Instructions:
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 "{095059B1-351D-4B64-8A6B-62677D3ED860}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry value "WebPrefix" at "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\".
Delete the registry key "{095059B1-351D-4B64-8A6B-62677D3ED860}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{095059B1-351D-4B64-8A6B-62677D3ED860}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{59E2E1C4-03C5-4C9D-85CD-66B194215017}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{59E2E1C4-03C5-4C9D-85CD-66B194215017}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{59E2E1C4-03C5-4C9D-85CD-66B194215017}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{B76703B0-39AE-4463-B957-5457375A2C95}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{B76703B0-39AE-4463-B957-5457375A2C95}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{B76703B0-39AE-4463-B957-5457375A2C95}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
If Stud.A 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.
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:
adware
Description:
Stud.A installs a library in the system directory and also an Browser Helper Object which is started on every Internet Explorer startup. It connects to advertising servers without user consent.
Removal Instructions:
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 "{095059B1-351D-4B64-8A6B-62677D3ED860}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry value "WebPrefix" at "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\".
Delete the registry key "{095059B1-351D-4B64-8A6B-62677D3ED860}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{095059B1-351D-4B64-8A6B-62677D3ED860}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{59E2E1C4-03C5-4C9D-85CD-66B194215017}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{59E2E1C4-03C5-4C9D-85CD-66B194215017}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{59E2E1C4-03C5-4C9D-85CD-66B194215017}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
Delete the registry key "{B76703B0-39AE-4463-B957-5457375A2C95}" at "HKEY_CLASSES_ROOT\CLSID\".
Delete the registry key "{B76703B0-39AE-4463-B957-5457375A2C95}" at "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\".
Delete the registry key "{B76703B0-39AE-4463-B957-5457375A2C95}" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\".
If Stud.A 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.