Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Included in our products from | July 2008 (4.31) |
| Protection available since | 13 May 2008 06:15:02 (GMT) |
| Detected by | All Sophos products |
Action

Summary
Action
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Please follow the instructions for removing Trojans.
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W32/Sohana-AV is a worm for the Windows platform.
W32/Sohana-AV includes functionality to access the internet and communicate with a remote server via HTTP.
When first run W32/Sohana-AV 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
