Sophos

W32/Sohana-Y

Aliases
  • IM-Worm.Win32.Sohanad.am
  • WORM_SOHANAD.BO
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Removable storage devices
  • Network shares
  • Chat programs
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from September 2007 (4.21)
Protection available since 16 July 2007 22:57:07 (GMT)
Detected by All Sophos products

Action

More Information

W32/Sohana-Y is a worm for the Windows platform.

W32/Sohana-Y spreads through instant messaging applications, removable media and network shares.

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

W32/Sohana-Y is a worm for the Windows platform.

W32/Sohana-Y spreads through instant messaging applications, removable media and network shares.

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

When first run W32/Sohana-Y copies itself to:

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

and creates the following files:

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

The file autorun.ini is detected as Mal/AutoInf-A.

The following registry entry is created to run W32/Sohana-Y on startup:

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

The following registry entry is changed to run W32/Sohana-Y on startup:

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