Sophos

Troj/PPdoor-Q

Aliases
  • Backdoor.Win32.PPdoor.bm
  • BackDoor-CHC
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Included in our products from February 2006 (4.02)
Protection available since 15 December 2005 23:12:20 (GMT)
Last updated 6 January 2006 11:35:44 (GMT)
Detected by All Sophos products

Action

More Information

Troj/PPdoor-Q is a backdoor Trojan for the Windows platform.

Troj/PPdoor-Q includes functionality to access the internet and communicate with a remote server via HTTP.

Troj/PPdoor-Q attempts to disable some security related processes.

When Troj/PPdoor-Q is installed some of the following files may be created:

<System>\dpnetmsg.exe
<System>\iueninet.dll
<System>\fsmgntfs.dll
<System>\ntmapast.dll
<System>\ir50psrv.exe
<System>\kbd1uery.dll
<System>\lfyockaa.dll
<System>\a15svcs.exe
<System>\dpnmdlib.exe
<System>\c_28usic.dll
<System>\atiysnpn.dll
<System>\treemqoa.dll
<System>\arptutdn.dll
<System>\eulapart.dll
<System>\smlo8thk.exe
<System>\odbcfwci.ime
<System>\hgakheg.dll
<System>\jkwbhew.dll
<System>\testtest.exe

These are data files which can be deleted.

The following registry entry is created to run code exported by the Trojan library on startup:

HKLM\SOFTWARE\Microsoft\Windows \CurrentVersion\ShellServiceObjectDelayLoad
Shedule WebControl
(371E1EE1-3C10-48BF-8C65-CEB88E8DBDA8)

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
Explorer.exe,dpnetmsg.exe

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Userinit
<System>\userinit.exe,<System>\dpnetmsg.exe

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