VBS/LoveLetter@MM!E4A​0B7D999B7

This page shows details and results of our analysis on the malware VBS/LoveLetter@MM!E4A0B7D999B7

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

42496

Description Added

2013-06-17

Description Modified

2013-06-17

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionVBS/LoveLetter@MM
Length42496 bytes
MD5e4a0b7d999b7a0daf955225ffc8c02fa
SHA15de6b7e5644602006a09615bc2bd99eb8ff3b3f7


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWorm/Win32.Mixor
avastWin32:Malware-gen
AVG (GriSoft)I-Worm/Luder.A
aviraWORM/Zhelatin.Gen
KasperskyWorm.Win32.Luder.aadh
BitDefenderDeepScan:Generic.Malware.SIM!g.729086AF
clamavPUA.Win32.Packer.Pearmor-4
Dr.WebTrojan.Siggen5.31024
F-ProtW32/Mixor.A
FortiNetW32/LoveLetter.JK!tr
Microsoftvirus:win32/duel.a@mm
SymantecW32.Mixor
EsetWin32/LoveLetter
normanwinpe/Troj_Generic.LWSXT
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:

5DE6B7E5644602006A09615BC2BD99EB8FF3B3F7

The following files have been added to the system:

  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\qyjaaariz.arr
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\jayayarab.ria
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\qyrabrrar.arq
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\jrazyiyai.byq
  • %COMMONPROGRAMFILES%\Adobe\Updater6\izarrrzii.irr
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\qjjrrzqyj.aaa
  • %PROGRAMFILES%\MSN\MSNCoreFiles\abriazzza.ribbrrar.arq
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\byjzbyjay.aya
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\byqabijra.zyi
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\qjjrrzqyj.aaa
  • %PROGRAMFILES%\Windows NT\jjrrzqyja.aar
  • %PROGRAMFILES%\Messenger\qyrabrrar.arq
  • %PROGRAMFILES%\MSN\MSNCoreFiles\Setup\yqabijraz.yiyarq
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\aibyqyajq.iaq
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\yaibyqyaj.qia
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\qyrabrrar.arq
  • C:\zrjryayzq.yqa
  • C:\byqabijra.zyi
  • C:\qbbaiyyrj.bij
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\qqjyzbzby.qqj
  • %WINDIR%\ehome\rqqjzbqaj.qrz
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\byqabijra.zyi
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\zbyqqjbyj.zby
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\rrararqqj.yzb
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\aibyqyajq.iaq
  • %PROGRAMFILES%\MSN\MSNCoreFiles\qjyzbzbyq.qjbbrrar.arq
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\rqyrabrra.rar
  • %TEMP%\rjqyji.bry
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\yqabijraz.yiy
  • C:\qjjrrzqyj.aaa
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\yaibyqyaj.qia
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\abriazzza.rib
  • C:\yaibyqyaj.qia
  • %WINDIR%\Microsoft.NET\Framework\zzzaribyq.abi
  • %PROGRAMFILES%\MSN\MSNCoreFiles\aibyqyajq.iaqaz.yiyarq
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\zzzaribyq.abi
  • C:\ryjqqaybz.aai
  • C:\rqyrabrra.rar
  • %WINDIR%\xwrm.exe
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\rziiirrqy.rab
  • %PROGRAMFILES%\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-[private subnet]-A92000000001}\qaiyzbarz.yar
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\yajqiaqjj.rrz
  • C:\qqjyzbzby.qqj
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\yqabijraz.yiy
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\abriazzza.rib
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\rizarrrzi.iir
  • C:\byjzbyjay.aya
  • C:\rabriazzz.ari
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\jjrrzqyja.aar
  • %PROGRAMFILES%\MSN\MSNCoreFiles\yjzbyjaya.yarbrrar.arq
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\jjrrzqyja.aar
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\rizarrrzi.iir
  • C:\rizarrrzi.iir

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