Sophos

W32/Cuebot-D

Aliases
  • Backdoor.Win32.IRCBot.ex
  • W32/Sdbot.worm.gen.by
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 19 August 2005 20:51:38 (GMT)
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Action

More Information

W32/Cuebot-D is a network worm with backdoor Trojan functionality for the Windows platform.

W32/Cuebot-D attempts to spread using a variety of techniques including the exploitation of the PnP vulnerability (MS05-039).

A patch for the PnP operating system vulnerability exploited by W32/Cuebot-D can be obtained from Microsoft at:

MS05-039 W32/Cuebot-D is a network worm with backdoor Trojan functionality for the Windows platform.

W32/Cuebot-D attempts to spread using a variety of techniques including the exploitation of the PnP vulnerability (MS05-039).

When first run W32/Cuebot-D copies itself to <System>\ssl.exe and creates the file <Windows>\Debug\dcpromo.log.

The file ssl.exe is registered as a new system driver service named "ssl", with a display name of "Microsoft SSL" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Services\ssl\

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
n

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

A patch for the PnP operating system vulnerability exploited by W32/Cuebot-D can be obtained from Microsoft at:

MS05-039

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