VBS/LoveLetter@MM!8AB​5F9FE766E

This page shows details and results of our analysis on the malware VBS/LoveLetter@MM!8AB5F9FE766E

Overview

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.


Minimum Engine

5600.1067

File Length

41984

Description Added

2013-06-24

Description Modified

2013-06-24

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionVBS/LoveLetter@MM
Length41984 bytes
MD58ab5f9fe766e8be9d6c9fa85ba1c9553
SHA1c8a03fb341a02329aaf8d6a8b76f30628e3dcb63


Other Common Detection Aliases

Company NamesDetection Names
EMSI SoftwareDeepScan:Generic.Malware.SIM!g.4F7BD3F9 (B)
ahnlabWorm/Win32.Mixor
avastWin32:Malware-gen
AVG (GriSoft)I-Worm/Luder.A
aviraWORM/Zhelatin.Gen
BitDefenderDeepScan:Generic.Malware.SIM!g.4F7BD3F9
clamavPUA.Win32.Packer.Pearmor-4
Dr.WebWin32.XWorm.1
F-ProtW32/Mixor.A
FortiNetW32/LoveLetter.CR@mm
Microsoftvirus:win32/duel.a@mm
SymantecW32.Mixor
EsetWin32/LoveLetter worm (variant)
normanXWorm.A
pandaTrj/CI.A
SophosMal/EncPk-GT
Trend MicroMal_Xed-3
vba32Virus.Win32.Luder.A
V-BusterWorm.Loveletter.Gen (mutant)

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


ActivitiesRisk Levels
Attempts to write file to shared locations.Low
Enumerates many system files and directories.Low
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaVBS/LoveLetter@MM
McAfee SupportedVBS/LoveLetter@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:

C8A03FB341A02329AAF8D6A8B76F30628E3DCB63

The following files have been added to the system:

  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\jbyjzbyja.yay
  • %WINDIR%\ehome\ibyqabijr.azy
  • C:\rrqyrabrr.ara
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\rqqjyzbzb.yqq
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\arizarrrz.iii
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\arizarrrz.iii
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\rrqyrabrr.ara
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\ibyqabijr.azy
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\arabriazz.zar
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\rqqjyzbzb.yqq
  • %PROGRAMFILES%\MSN\MSNCoreFiles\jbyjzbyja.yayarrrz.iii
  • C:\arabriazz.zar
  • %PROGRAMFILES%\Windows NT\iyaibyqya.jqi
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\arizarrrz.iii
  • %TEMP%\rzqyja.aar
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\jbyjzbyja.yay
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\rrqyrabrr.ara
  • %PROGRAMFILES%\MSN\MSNCoreFiles\rrqyrabrr.araarrrz.iii
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\ibyqabijr.azy
  • %WINDIR%\Microsoft.NET\Framework\jbyjzbyja.yay
  • C:\ibyqabijr.azy
  • %COMMONPROGRAMFILES%\Adobe\Updater6\aqjjrrzqy.jaa
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\arizarrrz.iii
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\arabriazz.zar
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\arizarrrz.iii
  • C:\aqjjrrzqy.jaa
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\ybarijjaq.yqi
  • %PROGRAMFILES%\MSN\MSNCoreFiles\Setup\arabriazz.zariii
  • C:\arizarrrz.iii
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\iyaibyqya.jqi
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\aqjjrrzqy.jaa
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\aqjjrrzqy.jaa
  • C:\jbyjzbyja.yay
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\ibyqabijr.azy
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\arabriazz.zar
  • %PROGRAMFILES%\MSN\MSNCoreFiles\ibyqabijr.azyzz.zariii
  • C:\zziibiiqj.rqj
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\aqjjrrzqy.jaa
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\jbyjzbyja.yay
  • %PROGRAMFILES%\Messenger\arizarrrz.iii
  • C:\rqqjyzbzb.yqq
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\jbyjzbyja.yay
  • %WINDIR%\xwrm.exe
  • %PROGRAMFILES%\MSN\MSNCoreFiles\rqqjyzbzb.yqqarrrz.iii
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\rrqyrabrr.ara
  • C:\iyaibyqya.jqi
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\iyaibyqya.jqi
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\iyaibyqya.jqi
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\arabriazz.zar
  • %PROGRAMFILES%\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-[private subnet]-A92000000001}\rqqjyzbzb.yqq
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\iyaibyqya.jqi

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\X32X = %WINDIR%\xwrm.exe

Symptoms

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

Method 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.

Removal

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.

Variants