Virus Profile: W32/Chir.b@MM!B979B079058E

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 9/30/2012
Date Added: 9/30/2012
Origin: Unknown
Length: 10748
Type: Virus
Subtype: Win32
DAT Required: 6851
Removal Instructions
   
 
 
   

Description

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

Indication of Infection

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

Methods of Infection

Viruses are self-replicating. They are often spread by a network or by transmission to a removable medium such as a removable disk, writable CD, or USB drive. Viruses may also spread by infecting files on a network file system or a file system that is shared by another computer.

   

Virus Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionW32/Chir.b@MM
Length10748 bytes
MD5b979b079058e67af8c0959dc566bc2ad
SHA12114b93e0c9da7396e486d498f45270c8b50163f


Other Common Detection Aliases

Company NamesDetection Names
avastWin32:Runonce
AVG (GriSoft)Win32/Chir.B@mm
aviraW32/Chir.B
KasperskyEmail-Worm.Win32.Runouce.b
BitDefenderWin32.Runouce.B@mm
clamavWIN.Worm.Brontok
Dr.WebWin32.Runonce.6652
F-ProtW32/Thecid.B@mm
FortiNetW32/Chir.b@MM
Microsoftvirus:win32/chir.b@mm
SymantecW32.Chir.B@mm
EsetWin32/Chir.B virus
normanw32/agent.vafm
pandaW32/Chir.B
risingWorm.Runouce
SophosW32/Chir-B
Trend MicroPE_Chir.B-O
vba32Virus.Win32.Chur.A
V-BusterI-Worm.Chir.B
Vet (Computer Associates)Win32/Chir.B

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


ActivitiesRisk Levels
Attempts to load and execute remote code in explorer processHigh
Attempts to write to a memory location of a protected process.High
Attempts to write to a memory location of a Windows system processHigh
Attempts to load and execute remote code in a previously loaded processMedium
Attempts to write file to shared locations.Low
Enumerates many system files and directories.Low
Process attempts to call itself recursivelyLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Chir.b@MM
McAfee SupportedW32/Chir.b@MM



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:

2114b93e0c9da7396e486d498f45270c8b50163f

The following files have been added to the system:

  • %COMMONPROGRAMFILES%\system\ado\readme.eml
  • %USERPROFILE%\My Documents\readme.eml
  • %PROGRAMFILES%\Adobe\Reader 9.0\readme.eml
  • %USERPROFILE%\Desktop\readme.eml
  • C:\readme.eml
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\readme.eml
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\readme.eml
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\1033\readme.eml
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\readme.eml
  • %PROGRAMFILES%\msn\msncorefiles\readme.eml
  • %PROGRAMFILES%\netmeeting\readme.eml
  • %WINDIR%\SYSTEM32\runouce.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\readme.eml
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Legal\ENU\readme.eml

The following files have been changed:

  • %COMMONPROGRAMFILES%\Microsoft Shared\Smart Tag\SmartTagInstall.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\DSSM.EXE
  • C:\Users html Document.htm
  • %PROGRAMFILES%\outlook express\wab.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AcroTextExtractor.exe
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\technical.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\OFREADME.HTM
  • %PROGRAMFILES%\microsoft frontpage\version3.0\bin\fpsrvadm.exe
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\imagemap.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AdobeCollabSync.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AcroRd32.exe
  • %COMMONPROGRAMFILES%\microsoft shared\dw\dw20.exe
  • %PROGRAMFILES%\winrar\rar.exe
  • %PROGRAMFILES%\Outlook Express\OLD31.tmp
  • %PROGRAMFILES%\msn\msncorefiles\setup\msnunin.exe
  • c:\Users exe File.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\MSTORE.EXE
  • %USERPROFILE%\Desktop\Users html Document.htm
  • C:\Users html Document.html
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\OIS.EXE
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\MSPVIEW.EXE
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\POWERPNT.EXE
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\MSOXMLED.EXE
  • c:\Users exe File.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Reader_sl.exe
  • %PROGRAMFILES%\netmeeting\netmeet.htm
  • %PROGRAMFILES%\microsoft frontpage\version3.0\bin\OLD25.tmp
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\WAVTOASF.EXE
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AcroRd32Info.exe
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\leaves.htm
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\htimage.exe
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\_vti_inf.htm
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\ivy.htm
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\sunflower.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\PPREADME.HTM
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\sweets.htm
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bin\OLD19.tmp
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\blank.htm
  • %PROGRAMFILES%\internet explorer\connection wizard\icwconn2.exe
  • %USERPROFILE%\My Documents\Users html Document.htm
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\MSOICONS.EXE
  • %PROGRAMFILES%\msn\msncorefiles\dw.exe
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\fiesta.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\XLREADME.HTM
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\OSE.EXE
  • %PROGRAMFILES%\msn\msncorefiles\copymar.exe
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\ReaderUpdater.exe
  • %PROGRAMFILES%\Movie Maker\OLD2B.tmp
  • %PROGRAMFILES%\outlook express\wabmig.exe
  • %COMMONPROGRAMFILES%\microsoft shared\speech\sapisvr.exe
  • %PROGRAMFILES%\internet explorer\connection wizard\icwrmind.exe
  • %USERPROFILE%\Desktop\Users html Document.html
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\citrus punch.htm
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\OLD1B.tmp
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\_vti_aut\OLD21.tmp
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\postinfo.htm
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\LogTransport2.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\ReadMe.htm
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\pie charts.htm
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\fpserver.exe
  • %PROGRAMFILES%\microsoft frontpage\version3.0\bin\fpsrvwin.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\AcroBroker.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\PDFPrevHndlrShim.exe
  • %COMMONPROGRAMFILES%\system\ado\mdacreadme.htm
  • %PROGRAMFILES%\msn\msncorefiles\update.exe
  • %PROGRAMFILES%\NetMeeting\OLD2D.tmp
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bin\OLD15.tmp
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\AcrobatUpdater.exe
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\isapi\fpcount.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\EXCEL.EXE
  • %COMMONPROGRAMFILES%\Microsoft Shared\MSInfo\OINFOP11.EXE
  • %PROGRAMFILES%\msn\msncorefiles\msn6.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-[private subnet]-A92000000001}\Setup.exe
  • %PROGRAMFILES%\Internet Explorer\OLD29.tmp
  • %PROGRAMFILES%\messenger\msmsgsin.exe
  • %COMMONPROGRAMFILES%\microsoft shared\dw\dwtrig20.exe
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\glacier.htm
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\OLD1D.tmp
  • %PROGRAMFILES%\Internet Explorer\Connection Wizard\OLD27.tmp
  • %PROGRAMFILES%\outlook express\oemig50.exe
  • %PROGRAMFILES%\internet explorer\connection wizard\inetwiz.exe
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\nature.htm
  • %PROGRAMFILES%\msn\msncorefiles\msnread.htm
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\MSOHELP.EXE
  • %USERPROFILE%\My Documents\Users html Document.html
  • %PROGRAMFILES%\Outlook Express\OLD2F.tmp
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\INTLBAND.HTM
  • %PROGRAMFILES%\internet explorer\connection wizard\isignup.exe
  • %PROGRAMFILES%\winrar\unrar.exe
  • %COMMONPROGRAMFILES%\Adobe\Updater6\AdobeUpdaterInstallMgr.exe
  • %COMMONPROGRAMFILES%\Adobe\Updater6\Adobe_Updater.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\_vti_adm\OLD1F.tmp
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\MSOHTMED.EXE
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Eula.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\PPTVIEW.EXE
  • %PROGRAMFILES%\internet explorer\connection wizard\icwtutor.exe
  • c:\Users exe File.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\GRAPH.EXE
  • %PROGRAMFILES%\microsoft frontpage\version3.0\bin\OLD23.tmp
  • %PROGRAMFILES%\netmeeting\wb32.exe
  • %PROGRAMFILES%\netmeeting\cb32.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\MSTORDB.EXE
  • %PROGRAMFILES%\winrar\uninstall.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\PVREADME.HTM
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\PROFLWIZ.EXE
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\AdobeARM.exe
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\A3DUtility.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Web Components\11\DFUICOM.EXE
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\Legal\ENU\license.html
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\clear day.htm
  • %PROGRAMFILES%\winrar\winrar.exe
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\1033\nortbots.htm
  • %COMMONPROGRAMFILES%\microsoft shared\web server extensions\40\bin\fpsrvadm.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\WINWORD.EXE
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\network blitz.htm
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bin\OLD17.tmp
  • %COMMONPROGRAMFILES%\microsoft shared\msinfo\msinfo32.exe
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\1033\WDREADME.HTM
  • %COMMONPROGRAMFILES%\microsoft shared\stationery\maize.htm

The following registry elements have been changed:

  • HKEY_CURRENT_USER\SESSIONINFORMATION\PROGRAMCOUNT = 2
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\RUNONCE = [binary data]

   

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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