Sophos

W32/Sdbot-DEE

Aliases
  • W32/Sdbot.worm.gen.ax
  • Backdoor.Win32.Rizo.a
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from July 2007 (4.19)
Protection available since 11 May 2007 19:07:10 (GMT)
Detected by All Sophos products

Action

More Information

W32/Sdbot-DEE is a worm for the Windows platform with IRC backdoor capabilities.

W32/Sdbot-DEE is a worm for the Windows platform with IRC backdoor capabilities.

When run W32/Sdbot-DEE copies itself to the system folder as u.exe. The following Registry entries are added to hook system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Office Monitor Word Exel R
<system>\u.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Office Monitor Word Exel R
<system>\u.exe

Once running W32/Sdbot-DEE will attempt to connect to a remote server and download additional malware. It also connects to a remote IRC server in order to receive commands from the intruder.

W32/Sdbot-DEE also sets the following Registry entries:

HKLM\SOFTWARE\Microsoft\Ole\EnableDCOM
N

HKLM\SYSTEM\ControlSet001\Control\Lsa\restrictanonymous
1

HKLM\SYSTEM\CurrentControlSet\Control\Lsa\restrictanonymous
1

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