Sophos

W32/Myfip-H

Aliases
  • Worm.Win32.Myfip.i
  • W32/Myfip.worm.q
  • WORM_MYFIP.G
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 3 March 2005 14:07:45 (GMT)
Detected by All Sophos products
  • Free virus, spyware, and adware scan
  • Test your existing anti-virus protection
  • Find threats your anti-virus missed

Action

Please follow the instructions for removing worms.

Windows NT/2000/XP/2003

In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Distributed File System
kernel32dll.exe

and delete it if it exists.

Close the registry editor.

More Information

W32/Myfip-H is a worm that spreads using network shares that are either unprotected or protected only by weak passwords.

W32/Myfip-H builds a list of all filenames whose extension is one of PDF, DOC, DWG, SCH, PCB, DWT, DWF and MAX and whose path does not contain any of the following strings:

Winnt
Windows
I386
Program Files
All Users
Recycler
System Volume Information
Inetpub
Documents and Settings
Wutemp
My Music

The worm then sends the contents of each file to a preconfigured IP address. W32/Myfip-H is a worm that spreads using network shares that are either unprotected or protected only by weak passwords.

The worm copies itself to the file kernel32dll.exe in the Windows system folder.

The worm attempts to register itself as a service process with the ServiceName and DisplayName "Distributed Link Tracking Extensions".

W32/Myfip-H creates the following registry entry:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Distributed File System
kernel32dll.exe

W32/Myfip-H builds a list of all filenames whose extension is one of PDF, DOC, DWG, SCH, PCB, DWT, DWF and MAX and whose path does not contain any of the following strings:

Winnt
Windows
I386
Program Files
All Users
Recycler
System Volume Information
Inetpub
Documents and Settings
Wutemp
My Music

The worm then sends the contents of each file to a preconfigured IP address.

RSS|Atom
Get reports about the latest virus and spyware threats delivered to your computer