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W32/AutoIt-EV

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Removable storage devices
  • Network shares
Affected operating systems Windows
Protection available since 5 July 2009 05:53:58 (GMT)
Detected by All Sophos products
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Action

More Information

W32/AutoIt-EV is a worm for the Windows platform.

When W32/AutoIt-EV is installed the following files are created:

<System>\logoneui.exe
<System>\autorun.ini
<Windows>\Tasks\At1.job
<Root>\info.bat
<Root>\Jojo.exe
<Root>\logoneui.exe
<Root>\autorun.inf

The autorun.inf is detected as W32/AutoInf-W.

W32/AutoIt-EV also moves <Root>\boot.ini to <System>\boote\boot.ini.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
firewall 2008
<System>\logoneui.exe

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

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

W32/AutoIt-EV changes settings for Microsoft Internet Explorer by modifying values under:

HKCU\Software\Microsoft\Internet Explorer\Main\Start Page

The following registry entries are set, disabling system software:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
0x00000001

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
0x00000001

Registry entries are set as follows:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NofolderOptions
0x00000001

HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
Hidden
0x00000001

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