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Virus Profile: PWS-Zbot.gen.aow!F27D294FC7FE

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 11/5/2012
Date Added: 11/5/2012
Origin: Unknown
Length: 113664
Type: Trojan
Subtype: Password Stealer
DAT Required: 6886
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.aow
Length113664 bytes
MD5f27d294fc7fe024fdccb1e4b3ae831df
SHA11c2f9d72f41f494bb801d9b62a4b0e59c8065851


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:LockScreen-LY
AVG (GriSoft)Dropper.Generic6.CQFF
aviraTR/Buzus.IH.46
BitDefenderTrojan.Generic.KDV.775688
FortiNetW32/Dapato.MSG!tr.dldr
MicrosoftVirTool:Win32/CeeInject.gen!IH
SymantecTrojan.Gen.2
EsetWin32/Injector.YJH trojan (variant)
normanW32/Troj_Generic.FCFER
SophosTroj/Agent-YPJ
Trend MicroTROJ_SPNR.11K412

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


ActivitiesRisk Levels
Disables the Windows Task Manager.High
Adds or modifies system policies. Could be used to prevent the or detour the use of common system tools.High
Modifies winlogon configuration settings in registryMedium
Adds or modifies winlogon shell registry value. Could be used to launch a program on startup.Medium
Enumerates many system files and directories.Low
Modifies Windows control panel settings.Low
Process attempts to call itself recursivelyLow
No digital signature is presentInformational


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



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:

1c2f9d72f41f494bb801d9b62a4b0e59c8065851

The following files have been added to the system:

  • %TEMP%\17.tmp\img\bg2.jpg
  • %TEMP%\17.tmp\ps.hta
  • %TEMP%\17.tmp\img\b3.png
  • %TEMP%\17.tmp\img\mp.png
  • %TEMP%\17.tmp\index2.hta
  • %TEMP%\17.tmp\img\bg.jpg
  • %TEMP%\17.tmp\img\ps.png
  • %TEMP%\17.tmp\index.hta
  • %ALLUSERSPROFILE%\Application Data\_crraMcdw.exe
  • %TEMP%\17.tmp\img\button.png
  • %TEMP%\17.tmp\mp.hta
  • %USERPROFILE%\Local Settings\Application Data\_crraMcdw.exe

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

  • %TEMP%\7.tmp
  • %TEMP%\18.tmp
  • %TEMP%\17.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MULTIMEDIA\DRAWDIB\
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\

The following registry elements have been changed:

  • HKEY_CURRENT_USER\CONTROL PANEL\DESKTOP\WALLPAPER
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\POOL = [binary data]
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\COMMAND PROCESSOR\AUTORUN = "%USERPROFILE%\Local Settings\Application Data\_crraMcdw.exe"
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\MULTIMEDIA\DRAWDIB\VGA.DRV [private subnet](BGR 0) = 31,31,31,31
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM\DISABLETASKMGR = 1
  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\THEMEMANAGER\THEMEACTIVE = 48
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON\SHELL = Explorer.exe, %ALLUSERSPROFILE%\Application Data\_crraMcdw

   

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.

   

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