Virus:TR/Fakealert.QE
Date discovered:16/10/2008
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:No
IVDF version:7.00.07.46 - Thursday, October 16, 2008

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Symantec: AntiVirus2009
   •  Kaspersky: not-a-virus:FraudTool.Win32.XPSecurityCenter.az
   •  F-Secure: not-a-virus:FraudTool.Win32.XPSecurityCenter.az
   •  Panda: Adware/XPAntiSpyware2009
   •  Grisoft: Downloader.Small.ELY


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Downloads files
   • Downloads malicious files


Right after execution the following information is displayed:


 Files The following files are created:

– Non malicious files:
   • %PROGRAM FILES%\XP_AntiSpyware\Uninstall.exe; %PROGRAM
      FILES%\XP_AntiSpyware\htmlayout.dll; %PROGRAM
      FILES%\XP_AntiSpyware\pthreadVC2.dll; %PROGRAM
      FILES%\XP_AntiSpyware\Microsoft.VC80.CRT\msvcp80.dll; %PROGRAM
      FILES%\XP_AntiSpyware\Microsoft.VC80.CRT\msvcm80.dll; %PROGRAM
      FILES%\XP_AntiSpyware\Microsoft.VC80.CRT\msvcr80.dll; %PROGRAM
      FILES%\XP_AntiSpyware\data\daily.cvd; %HOME%\Start
      Menu\Programs\XP_AntiSpyware\XP_AntiSpyware.lnk;
      %HOME%\Desktop\XP_AntiSpyware.lnk; %HOME%\Start
      Menu\Programs\XP_AntiSpyware\XP_AntiSpyware.lnk; %HOME%\Start
      Menu\Programs\XP_AntiSpyware\Uninstall.lnk

– Temporary files that might be deleted afterwards:
   • %TEMPDIR%\prm2
   • %TEMPDIR%\prm3

– %PROGRAM FILES%\XP_AntiSpyware\AVEngn.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Fakealert.QF

– %TEMPDIR%\Binaries1.cab2
– %TEMPDIR%\Binaries2.cab3
– %TEMPDIR%\Binaries3.cab4



It tries to download some files:

– The location is the following:
   • http://www.xpas2009.com/**********/Binaries1.cab
It is saved on the local hard drive under: %temporary internet files%\Content.IE5\%eight-digit random character string%\Binaries1[1].cab

– The location is the following:
   • http://www.xpas2009.com/**********/Binaries2.cab
It is saved on the local hard drive under: %temporary internet files%\Content.IE5\%eight-digit random character string%\Binaries2[1].cab

– The location is the following:
   • http://www.xpas2009.com/**********/Binaries3.cab
It is saved on the local hard drive under: %temporary internet files%\Content.IE5\%eight-digit random character string%\Binaries3[1].cab



It tries to executes the following files:

– Filename:
   • %PROGRAM FILES%\XP_AntiSpyware\XP_AntiSpyware.exe
Furthermore it contains malicious code. Detected as: TR/Drop.Delf.Crypt.G.24


– Filename:
   • %PROGRAM FILES%\XP_AntiSpyware\wscui.cpl
Furthermore it contains malicious code. Detected as: TR/Fakealert.QE

 File details Programming language:
 The malware program was written in MS Visual C++.


Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description inserted by Andreas Feuerstein on Tuesday, October 21, 2008
Description updated by Andreas Feuerstein on Tuesday, October 21, 2008

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