Sophos

W32/SillyFDC-BU

Aliases
  • WORM_SOHANAD.DS
  • Win32/Hakaglan.G
  • worm
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from April 2008 (4.28)
Protection available since 9 February 2008 20:00:04 (GMT)
Detected by All Sophos products

Action

More Information

W32/SillyFDC-BU is a worm for the Windows platform.

W32/SillyFDC-BU includes functionality to access the internet and communicate with a remote server via HTTP.

When first run W32/SillyFDC-BU copies itself to:

<Windows>\scvvhsot.exe
<System>\blastclnnn.exe
<System>\scvvhsot.exe

and creates the following files:

<System>\autorun.ini
<System>\setting.ini

The file autorun.ini is detected as W32/SillyFDC-AE.

The following registry entry is created to run scvvhsot.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Yahoo Messengger
<System>\SCVVHSOT.exe

The following registry entry is changed to run scvvhsot.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
Explorer.exe SCVVHSOT.exe

The following registry entries are set, disabling system software:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
1

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
1

The following registry entry is set:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NofolderOptions
1

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