Sophos

W32/Rbot-APH

Aliases
  • Backdoor.Win32.Rbot.gen
  • W32/Sdbot.worm.gen.q
  • W32.Spybot.Worm
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from December 2005 (4.00)
Protection available since 28 September 2005 21:42:59 (GMT)
Last updated 17 October 2005 09:08:53 (GMT)
Detected by All Sophos products

Action

More Information

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

W32/Rbot-APH spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011) and PNP (MS05-039).

W32/Rbot-APH 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-APH copies itself to <System>\mame.exe.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Host Process
mame.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Host Process
mame.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Host Process
mame.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Host Process
mame.exe

Registry entries are set as follows:

HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Host Process
mame.exe

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Host Process
mame.exe

HKCU\Software\Microsoft\OLE
Host Process
mame.exe

HKLM\SOFTWARE\Microsoft\Ole
Host Process
mame.exe

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