Sophos

W32/Rbot-DDJ

Aliases
  • Backdoor.Win32.Rbot.aym
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 1 May 2006 05:22:23 (GMT)
Last updated 2 May 2006 09:47:38 (GMT)
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Action

More Information

W32/Rbot-DDJ is a worm and IRC backdoor Trojan for the Windows platform.

W32/Rbot-DDJ runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.

When first run W32/Rbot-DDJ copies itself to <System>\runjava.exe and creates the file \<current folder>\aspr_keys.ini. The file aspr_keys.ini can be deleted.

The following registry entries are created to run runjava.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Java Runtime Value
runjava.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Java Runtime Value
runjava.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Java Runtime Value
runjava.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Java Runtime Value
runjava.exe

Registry entries are set as follows:

HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Java Runtime Value
runjava.exe

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Java Runtime Value
runjava.exe

HKCU\Software\Microsoft\OLE
Java Runtime Value
runjava.exe

HKLM\SOFTWARE\Microsoft\Ole
Java Runtime Value
runjava.exe

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