W32/Rbot-BDT

Aliases	Backdoor.Win32.Rbot.akf
Category	Viruses and Spyware
Type	Worm
What to do	If you've received an alert for a virus or spyware, then follow the instructions for removing the threat.
Prevalence	low high

Summary


How it spreads	Network shares
Affected operating systems	Windows
Characteristics	Installs itself in the registry
Included in our products from	February 2006 (4.02)
Protection available since	26 December 2005 02:25:58 (GMT)
Detected by	All Sophos products

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

When first run W32/Rbot-BDT copies itself to <System>\alg2.exe and creates the
file \%CurrentFolder%\aspr_keys.ini.

The following registry entries are created to run alg2.exe on startup:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Networking Service
alg2.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Networking Service
alg2.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Networking Service
alg2.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Networking Service
alg2.exe

Registry entries are set as follows:

HKCU\SYSTEM\CurrentControlSet\Control\Lsa
Networking Service
alg2.exe

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
Networking Service
alg2.exe

HKCU\Software\Microsoft\OLE
Networking Service
alg2.exe

HKLM\SOFTWARE\Microsoft\Ole
Networking Service
alg2.exe

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