Sophos

W32/Rbot-AHT

Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Network shares
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Included in our products from September 2005 (3.97)
Protection available since 10 July 2005 14:31:15 (GMT)
Detected by All Sophos products

Action

More Information

W32/Rbot-AHT is a worm with backdoor functionality that spreads over security vulnerabilities and weak passwords.

W32/Rbot-AHT exploits the following Microsoft vulnerabilites:

MS02-039
MS03-049
MS04-011
MS04-012 W32/Rbot-AHT is a worm with backdoor functionality that spreads over security vulnerabilities and weak passwords.

W32/Rbot-AHT exploits the following Microsoft vulnerabilites:

MS02-039
MS03-049
MS04-011
MS04-012

W32/Rbot-AHT moves itself to the Windows system folder as service.exe, and creates the following registry entries to ensure it runs at system startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\
Registry Value Name =
service.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\
Registry Value Name =
service.exe

HKCU\Software\Microsoft\OLE\
Registry Value Name =
service.exe

The following registry entries are also set, to affect system security:

HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\
Start =
4

HKLM\SYSTEM\CurrentControlSet\Services\wuauserv\
Start =
4

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
MaxConnectionsPer1_0Server =
50

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\
MaxConnectionsPerServer =
50

HKLM\SOFTWARE\Microsoft\Ole\
EnableRemoteConnect =
N

HKLM\SOFTWARE\Microsoft\Ole\
EnableDCOM =
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa\
restrictanonymous =
1

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