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View Full Version : Manual Removal Guide for Win32.Autorun.bn



Friday
2011-04-13, 12:08
The following instructions have been created to help you to get rid of "Win32.Autorun.bn" 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.Autorun.bn copies an executable file into system directory and autorun.inf to the harddrives and starts itself in autorun (as "IEXPLORER") without giving the user a possibility to cancel that process.
Also changes file type association for Registry Editor and antivirus software in registry.
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 "<$ENV(WARBN1)>" and pointing to "<$SYSDIR>\<$ENV(WARBN1)>.exe".
Entries named "IEXPLORER" and pointing to "<$SYSDIR>\iexplorer.exe".

Files:

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

The file at "<$SYSDIR>\iexplorer.exe".
The file at "<$SYSDIR>\sysurl.dll".
The file at "<$SYSDIR>\wuauc1t.exe".
Make sure you set your file manager to display hidden and system files. If Win32.Autorun.bn 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 value "CheckedValue=W=1" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360rpt.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360safe.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ANTIARP.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Ast.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AutoRunKiller.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvMonitor.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AVP.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CCenter.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Frameworkservice.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\IceSword.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Iparmor.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KASARP.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KRegEx.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVMonxp.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVSrvXP.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVWSC.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Mmsk.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Navapsvc.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nod32kui.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QQDOCTOR.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Regedit.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\VPTRAY.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\WOPTILITIES.EXE\".
Remove "<$SYSDIR>\wuauc1t.exe" from registry value "Debugger" at "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Wuauclt.EXE\".
If Win32.Autorun.bn 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.

There are more files or system entries belonging to this product that <$SPYBOTSD> can remove, but that cannot be easily described in text. Please use <$SPYBOTSD> to make sure <$PRODUCTNAME> gets completely removed.