Sophos

W32/Rbot-AKM

Aliases
  • Backdoor.Win32.Rbot.yk
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)
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Action

More Information

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

W32/Rbot-AKM spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilities (including LSASS and PnP) and using backdoors opened by other worms or Trojans.

W32/Rbot-AKM can be controlled by a remote attacker over IRC channels. The backdoor component of W32/Rbot-AKM can be instructed by a remote user to perform the following functions:

start an FTP server
start a Proxy server
start a web server
take part in distributed denial of service (DDoS) attacks
log keypresses
capture screen/webcam images
packet sniffing
port scanning
download/execute arbitrary files
start a remote shell (RLOGIN)

The worm copies itself to a file named pnpsrv.exe in the Windows system folder and creates the following registry entries:

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Windows PNP Server
"pnpsrv.exe"

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
Windows PNP Server
"pnpsrv.exe"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Windows PNP Server
"pnpsrv.exe"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Windows PNP Server
"pnpsrv.exe"

Patches for the operating system vulnerabilities exploited by W32/Rbot-AKM can be obtained from Microsoft at:

MS04-011
MS05-039

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