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Virus Profile: PWS-Zbot.gen.dn!C25F38D4A38A

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 1/23/2013
Date Added: 1/23/2013
Origin: Unknown
Length: 60045
Type: Trojan
Subtype: Password Stealer
DAT Required: 6964
Removal Instructions
   
 
 
   

Description

This is a Trojan detection. Unlike viruses, Trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include e-mail, malicious or hacked Web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.

Indication of Infection

This symptoms of this detection are the files, registry, and network communication referenced in the characteristics section.

Methods of Infection

Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, e-mail, etc.

   

Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionPWS-Zbot.gen.dn
Length60045 bytes
MD5c25f38d4a38a94bbf0ad0c49f391c3a9
SHA191590defbc61113b17bd581bf218f2faa327bfb1


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Malware-gen
KasperskyTrojan-Spy.Win32.SpyEyes.acrx
Dr.WebTrojan.Siggen2.6792
F-ProtW32/Trojan2.NLRB
FortiNetW32/Zbot.DNN!tr
MicrosoftWorm:Win32/Ramnit.A
SymantecBackdoor.Trojan
normanW32/Troj_Generic.GMETI
pandaTrj/Downloader.MDW
SophosTroj/Agent-OXR
Trend MicroTROJ_SPNR.07L412
vba32Backdoor.IRCNite.ase

Other brands and names may be claimed as the property of others.


ActivitiesRisk Levels
Attempts to launch an instance of Internet Explorer.Low
Enumerates many system files and directories.Low
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaPWS-Zbot.gen.dn
McAfee SupportedPWS-Zbot.gen.dn



System Changes

Some path values have been replaced with environment variables as the exact location may vary with different configurations.
e.g.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files


The following files were analyzed:

91590DEFBC61113B17BD581BF218F2FAA327BFB1

The following files have been added to the system:

  • %PROGRAMFILES%\Microsoft\DesktopLayer.exe
  • %PROGRAMFILES%\Internet Explorer\dmlconf.dat

The following files have been changed:

  • %COMMONPROGRAMFILES%\microsoft shared\proof\mslid.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\authplay.dll
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\BIDI32.DLL
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\ivy.htm
  • %PROGRAMFILES%\msn\msncorefiles\custdial.dll
  • %COMMONPROGRAMFILES%\microsoft shared\vba\vba6\vbe6.dll
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\ADDINS\MSVCR71.DLL
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\MSXML5.DLL
  • %PROGRAMFILES%\msn\msncorefiles\migrate.dll
  • %USERPROFILE%\My Documents\Users html Document.html
  • %PROGRAMFILES%\msn\msncorefiles\update.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\VC\msdia80.dll
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\nature.htm
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\1033\nortbots.htm
  • %COMMONPROGRAMFILES%\system\ole db\sqloledb.dll
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\blank.htm
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\citrus punch.htm
  • %PROGRAMFILES%\winrar\winrar.exe
  • %COMMONPROGRAMFILES%\microsoft shared\proof\chapi3t1.dll
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\DRIVERS\MDIUI.DLL
  • %USERPROFILE%\Desktop\Users html Document.htm
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\MSPCORE.DLL
  • %PROGRAMFILES%\msn\msncorefiles\msnspell.dll
  • %COMMONPROGRAMFILES%\microsoft shared\proof\msspell3.dll
  • %COMMONPROGRAMFILES%\system\ado\mdacreadme.htm
  • %PROGRAMFILES%\msn\msncorefiles\msn6.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\RICHED20.DLL
  • %PROGRAMFILES%\msn\msncorefiles\msmom.dll
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\pie charts.htm
  • %PROGRAMFILES%\winrar\rar.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\MULTIQ.DLL
  • C:\Users html Document.html
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\glacier.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AdobeXMP.dll
  • %COMMONPROGRAMFILES%\microsoft shared\reference titles\msreftl.dll
  • %COMMONPROGRAMFILES%\microsoft shared\proof\msthes3.dll
  • %PROGRAMFILES%\winrar\rarext.dll
  • %PROGRAMFILES%\msn\msncorefiles\setup\migrate.dll
  • %USERPROFILE%\Desktop\Users html Document.html
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\MDIVWCTL.DLL
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\sweets.htm
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\fiesta.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\GDIPLUS.DLL
  • %USERPROFILE%\My Documents\Users html Document.htm
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\network blitz.htm
  • C:\Users html Document.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\XLREADME.HTM
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\PPREADME.HTM
  • %PROGRAMFILES%\msn\msncorefiles\msnmetal.dll
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\INTLBAND.HTM
  • %COMMONPROGRAMFILES%\system\ole db\msmdcube.dll
  • %COMMONPROGRAMFILES%\system\ole db\msmdgdrv.dll
  • %PROGRAMFILES%\winrar\uninstall.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\OFREADME.HTM
  • %COMMONPROGRAMFILES%\Microsoft Shared\PROOF\1033\MSGR3EN.DLL
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\WDREADME.HTM
  • c:\Users exe File.exe
  • %PROGRAMFILES%\netmeeting\netmeet.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\PVREADME.HTM
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\MSPGIMME.DLL
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\technical.htm
  • %PROGRAMFILES%\msn\msncorefiles\logonmgr.dll
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\REFEDIT.DLL
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\leaves.htm
  • %PROGRAMFILES%\msn\msncorefiles\msnread.htm
  • %PROGRAMFILES%\msn\msncorefiles\popc.dll
  • %PROGRAMFILES%\msn\msncorefiles\setup\msnunin.exe
  • %PROGRAMFILES%\msn\msncorefiles\copymar.exe
  • %PROGRAMFILES%\msn\msncorefiles\msdbx.dll
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\sqlite.dll
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\clear day.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Acrofx32.dll
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\DRIVERS\MDIGRAPH.DLL
  • %COMMONPROGRAMFILES%\system\ole db\msolap.dll
  • %COMMONPROGRAMFILES%\designer\msaddndr.dll
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\MDIINK.DLL
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\maize.htm
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\postinfo.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\ACE.dll
  • %PROGRAMFILES%\winrar\unrar.exe
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\_vti_inf.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\HLP95EN.DLL
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\sunflower.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AGM.dll

The following files were temporarily written to disk then later removed:

  • %PROGRAMFILES%\Microsoft\pxC.tmp

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\USERINIT = %WINDIR%\SYSTEM32\userinit.exe,,%PROGRAMFILES%\microsoft\desktoplayer.exe

The applications attempted the following network connection(s):

  • 173.194.33.*:80
  • 106.187.94.***:443

   

All Users:

Please use the following instructions for all supported versions of Windows to remove threats and other potential risks:

1.Disable System Restore .

2.Update to current engine and DAT files for detection and removal.

3.Run a complete system scan.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

1. Please go to the Microsoft Recovery Console and restore a clean MBR.

On windows XP:

Insert the Windows XP CD into the CD-ROM drive and restart the computer.
When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
Select the Windows installation that is compromised and provide the administrator password
Issue 'fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

Insert the Windows CD into the CD-ROM drive and restart the computer.
Click on "Repair Your Computer"
When the System Recovery Options dialog comes up, choose the Command Prompt.
Issue 'bootrec /fixmbr' command to restore the Master Boot Record
Follow onscreen instructions
Reset and remove the CD from CD-ROM drive.