Troj/QQPass-N

Aliases	Trojan.PWS.QQPass
Category	Viruses and Spyware
Type	Trojan
What to do	If you've received an alert for a virus or spyware, then follow the instructions for removing the threat.
Prevalence	low high

Summary


Affected operating systems	Windows
Characteristics	Installs itself in the registry
Included in our products from	October 2005 (3.98)
Protection available since	17 August 2005 19:15:58 (GMT)
Detected by	All Sophos products

Troj/QQPass-N is a password stealing Trojan for the Windows platform.

When first run Troj/QQPass-N copies itself to:

<Temp>\temp~2
<System>\Updadv.exe

and creates the following files:

<System>\Updadv.dll
<System>\temp1.jpg

Updadv.dll and temp1.jpg are innocuous files and may be simply deleted.

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

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
winhelp
Updadv.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
expler
Updadv.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Runonce
Rundil32
Updadv.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServicesOnce
Regexit
Updadv.exe

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run
sdsr
Updadv.exe

Troj/QQPass-N may try to terminate security-related processes.

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