Sophos

W32/Rbot-AMP

Aliases
  • Backdoor.Win32.Rbot.aas
  • WORM_SDBOT.BYO
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 2 September 2005 13:10:56 (GMT)
Last updated 11 October 2005 19:50:10 (GMT)
Detected by All Sophos products
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Action

More Information

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

W32/Rbot-AMP spreads:

- to other network computers by exploiting common buffer overflow vulnerabilites, including: RPC-DCOM (MS04-012), PNP (MS05-039), ASN.1 (MS04-007)
- by copying itself to network shares protected by weak passwords

W32/Rbot-AMP 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-AMP copies itself to <System>\msdos.pif.

The following registry entries are created to run the worm on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MSDOS Security Service
msdos.pif

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
MSDOS Security Service
msdos.pif

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
MSDOS Security Service
msdos.pif

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
MSDOS Security Service
msdos.pif

The following registry entries are set:

HKLM\SOFTWARE\Microsoft\OLE
MSDOS Security Service
msdos.pif

HKLM\SYSTEM\CurrentControlSet\Control\Lsa
MSDOS Security Service
msdos.pif

HKCU\Software\Microsoft\OLE
MSDOS Security Service
msdos.pif

HKCU\SYSTEM\CurrentControlSet\Control\Lsa
MSDOS Security Service
msdos.pif

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