The following instructions have been created to help you to get rid of "BackOrifice.B" manually.
Use this guide at your own risk; software should usually be better suited to remove malware, since it is able to look deeper.
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The trojan tries to open a backdoor on the computer and so the computer is very insecure and can be exploited by attackers from the internet.Removal Instructions:
Please use Windows Explorer or another file manager of your choice to locate and delete these files.
Make sure you set your file manager to display hidden and system files. If BackOrifice.B uses rootkit technologies, use our RootAlyzer or our Total Commander anti-rootkit plugins.
- A file with an unknown location named "Backdoor.BackOrifice.B.exe".
- The file at "<$SYSDIR>\UMGR32.EXE".
You will have to use a global search for files without a name specified. Be extra careful, because just the name might not be enough to identify files!
You can use regedit.exe (included in Windows) to locate and delete these registry entries.
If BackOrifice.B uses rootkit technologies, use our RegAlyzer, RootAlyzer or our Total Commander anti-rootkit plugins.
- Delete the registry key "WyrmSoft" at "HKEY_LOCAL_MACHINE\Software\".
- Delete the registry value "UMGR32.EXE" at "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunServices\".
The following .ini file entries may need corrections. You can open this files in Notepad or any other text editor.
- Please remove "CR-PDD30.EXE" from entry "NUL" from section "rename" in file "<$WINDIR>\wininit.ini".
If neither Spybot-S&D nor self help did resolve the issue or you would prefer one on one help,
- Please read these instructions before requesting assistance,
- Then start your own thread in the Malware Removal Forum where a volunteer analyst will advise you as soon as available.