Backdoor.Futh

Risk Level 1: Very Low

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Discovered:: July 28, 2004
Updated:: February 13, 2007 12:25:54 PM
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 98, Windows Me, Windows NT, Windows XP

Backdoor.Futh is a backdoor Trojan horse that allows unauthorized remote access. By default, Backdoor.Futh listens on TCP ports 7896 and 7897.

Re-enabling registry access

If registry access has been disabled, do the following:

Click Start > Run.
Type:

Notepad

and then click OK.
Type, or copy and paste, the following text into the text file:

REGEDIT4 [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System] "DisableRegistryTools"=dword:00000000 [HKEY_CURRENT_USER\Software\Microsoft\WindowsNT\CurrentVersion\Policies\System] "DisableRegistryTools"=dword:00000000
Save the file as C:\Repair.reg.
Click Start > Run.
Type:

regedit -s C:\repair.reg

and then click OK.
Follow the steps in Section 4, "To delete the value from the registry."

Antivirus Protection Dates

Initial Rapid Release version July 29, 2004
Latest Rapid Release version September 28, 2010 revision 054
Initial Daily Certified version July 29, 2004
Latest Daily Certified version September 28, 2010 revision 036
Initial Weekly Certified release date August 4, 2004

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

Wild Level: Low
Number of Infections: 0 - 49
Number of Sites: 0 - 2
Geographical Distribution: Low
Threat Containment: Easy
Removal: Easy

Damage

Damage Level: Low

Distribution

Distribution Level: Low

Writeup By: John Park

Technical Details

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Internet Security Threat Report, Volume 16