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View Full Version : Manual Removal Guide for Win32.Delf.rtk



Friday
2008-11-29, 21:51
The following instructions have been created to help you to get rid of "Win32.Delf.rtk" 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:
This trojan horse installs itself in background. It uses rootkit functions and multiple services to start itself and stay persistent on the users computer.
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 "dmuzq.exe".

Files:

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

The file at "<$SYSDIR>\comsa32.sys".
The file at "<$SYSDIR>\comsa32.sys".
The file at "<$SYSDIR>\dmuzq.exe".
The file at "<$SYSDIR>\dmuzq.exe".
The file at "<$SYSDIR>\afisicx.exe".
The file at "<$SYSDIR>\afisicx.exe".
The file at "<$SYSDIR>\noytcyr.exe".
The file at "<$SYSDIR>\noytcyr.exe".
The file at "<$SYSDIR>\roxtctm.exe".
The file at "<$SYSDIR>\roxtctm.exe".
The file at "<$SYSDIR>\roytctm.exe".
The file at "<$SYSDIR>\roytctm.exe".
The file at "<$SYSDIR>\sobicyt.exe".
The file at "<$SYSDIR>\sobicyt.exe".
The file at "<$SYSDIR>\sotpeca.exe".
The file at "<$SYSDIR>\sotpeca.exe".
The file at "<$SYSDIR>\soxpeca.exe".
The file at "<$SYSDIR>\soxpeca.exe".
The file at "<$SYSDIR>\tdydowkc.exe".
The file at "<$SYSDIR>\tdydowkc.exe".
The file at "<$SYSDIR>\wsldoekd.exe".
The file at "<$SYSDIR>\wsldoekd.exe".
The file at "<$SYSDIR>\tpszxyd.sys".
The file at "<$SYSDIR>\tpszxyd.sys".
The file at "<$SYSDIR>\wsldoekd.exe".
The file at "<$SYSDIR>\afisicx.exe".
The file at "<$SYSDIR>\afisicx.exe".
The file at "<$SYSDIR>\mabidwe.exe".
The file at "<$SYSDIR>\mabidwe.exe".
The file at "<$SYSDIR>\proxy.exe".
The file at "<$SYSDIR>\proxy.exe".
The file at "<$SYSDIR>\noytcyr.exe".
The file at "<$SYSDIR>\noytcyr.exe".
The file at "<$SYSDIR>\roytctm.exe".
The file at "<$SYSDIR>\roytctm.exe".
The file at "<$SYSDIR>\sotpeca.exe".
The file at "<$SYSDIR>\sotpeca.exe".
The file at "<$SYSDIR>\soxpeca.exe".
The file at "<$SYSDIR>\soxpeca.exe".
The file at "<$SYSDIR>\tdydowkc.exe".
The file at "<$SYSDIR>\tdydowkc.exe".
The file at "<$SYSDIR>\dbi102.dll".
The file at "<$SYSDIR>\dbi102.dll".
The file at "<$SYSDIR>\sobicyt.exe".
The file at "<$SYSDIR>\sobicyt.exe".
The file at "C:\WINDOWS\system32\atsxyzd.sys".
The file at "C:\WINDOWS\system32\atsxyzd.sys".
The file at "<$SYSDIR>\afisicx.exe".
The file at "<$SYSDIR>\AFinding.exe".
The file at "<$SYSDIR>\afisicx.exe".
The file at "<$SYSDIR>\AFinding.exe".
The file at "<$SYSDIR>\roxtctm.exe".
The file at "<$SYSDIR>\roxtctm.exe".
The file at "<$SYSDIR>\noxtcyr.exe".
The file at "<$SYSDIR>\noxtcyr.exe".
The file at "<$SYSDIR>\wsldoekd.exe".
The file at "<$SYSDIR>\wsldoekd.exe".
The file at "<$SYSDIR>\macidwe.exe".
The file at "<$SYSDIR>\macidwe.exe".
The file at "<$SYSDIR>\sobicyt.exe".
The file at "<$SYSDIR>\tdxdowkc.exe".
The file at "<$SYSDIR>\tdxdowkc.exe".
The file at "<$SYSDIR>\Nobicyt.exe".
The file at "<$SYSDIR>\Nobicyt.exe".
The file at "<$SYSDIR>\routing.exe".
The file at "<$SYSDIR>\routing.exe".
The file at "<$SYSDIR>\WServing.exe".
The file at "<$SYSDIR>\WServing.exe".
The file at "<$SYSDIR>\oduxftw.sys".
The file at "<$SYSDIR>\oduxftw.sys".
The file at "<$SYSDIR>\proxy.exe".
The file at "<$SYSDIR>\proxy.exe".
The file at "<$SYSDIR>\perfs.exe".
The file at "<$LOCALSETTINGS>\Temp\mta39575.dll".
The file at "<$LOCALSETTINGS>\Temp\mta93330.dll".
The file at "<$SYSDIR>\comsa32.sys".
The file at "<$SYSDIR>\rouming.exe".
Make sure you set your file manager to display hidden and system files. If Win32.Delf.rtk 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 "mabidwe" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "mabidwe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "mabidwe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "mabidwe" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "MsService" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "MsService" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "MsService" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "MsService" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "noytcyr" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "noytcyr" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "noytcyr" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "noytcyr" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "roytctm" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "roytctm" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "roytctm" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "roytctm" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "sotpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "sotpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "sotpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "sotpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "soxpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "soxpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "soxpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "soxpeca" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "tdydowkc" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "tdydowkc" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "tdydowkc" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "tdydowkc" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "seictrl" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "seictrl" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "seictrl" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "seictrl" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "sobicyt" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "sobicyt" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "sobicyt" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "sobicyt" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "afinding" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afinding" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afinding" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afinding" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "macidwe" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "nobicyt" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "noxtcyr" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "routing" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "roxtctm" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "tdxdowkc" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "wserving" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "wsldoekd" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "afisicx" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
Delete the registry key "perfs" at "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\".
Delete the registry key "perfs" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\".
Delete the registry key "perfs" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\".
Delete the registry key "perfs" at "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\".
If Win32.Delf.rtk 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.