Sophos

W32/Rbot-AMW

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 6 September 2005 00:39:09 (GMT)
Last updated 7 October 2005 12:16:06 (GMT)
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Action

More Information

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

W32/Rbot-AMW spreads to other network computers by exploiting common buffer overflow vulnerabilites, including WKS (MS03-049), PNP (MS05-039) and ASN.1 (MS04-007) and by copying itself to network shares protected by weak passwords.

W32/Rbot-AMW 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-AMW copies itself to <System>\google.exe.

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

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
google
google.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
google
google.exe

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
restrictanonymous
1

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