Sophos

W32/Rbot-AKE

Aliases
  • Backdoor.Win32.Rbot.xs
  • WORM_RBOT.BZW
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 14 August 2005 15:53:19 (GMT)
Detected by All Sophos products
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Action

More Information

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

W32/Rbot-AKE 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-AKE copies itself to <System>\defrag.exe and creates the file <System>\svkp.sys.

<system>\svkp.sys is a device driver used by the commercial packing/encryption program SVKProtect and is not malware. W32/Rbot-AKE uses SVKProtect.

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

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Automatic Defrag Manager
defrag.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Automatic Defrag Manager
defrag.exe

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

HKLM\SYSTEM\CurrentControlSet\Services\SVKP\

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

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