Sophos

W32/Rbot-APJ

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 28 September 2005 21:42:59 (GMT)
Last updated 17 October 2005 09:08:53 (GMT)
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Action

More Information

W32/Rbot-APJ is a network worm with backdoor Trojan functionality for the Windows platform.

W32/Rbot-APJ spreads using a variety of techniques including exploiting weak passwords on computers and SQL servers, exploiting operating system vulnerabilities (including DCOM-RPC, LSASS, WebDAV and UPNP) and using backdoors opened by other worms or Trojans. W32/Rbot-APJ is a network worm with backdoor Trojan functionality for the Windows platform.

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

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

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

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

HKCU\Software\Microsoft\OLE
MS Sys Security
"mswin.pif"

HKCU\SYSTEM\CUrrentControlSet\Control\Lsa
MS Sys Security
"mswin.pif"

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
MS Sys Security
"mswin.pif"

HKCU\Software\Microsoft\Windows\CurrentVersion\RunServices
MS Sys Security
"mswin.pif"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
MS Sys Security
"mswin.pif"

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
MS Sys Security
"mswin.pif"

HKLM\SOFTWARE\Microsoft\OLE
MS Sys Security
"mswin.pif"

HKLM\SYSTEM\CUrrentControlSet\Control\Lsa
MS Sys Security
"mswin.pif"

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

MS01-059
MS03-007
MS04-011
MS04-012
MS05-039

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