VBS/LoveLetter@MM!285​D4C3D0B30

This page shows details and results of our analysis on the malware VBS/LoveLetter@MM!285D4C3D0B30

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 DAT

7110 (2013-06-18)

Updated DAT

7110 (2013-06-18)

Minimum Engine

5400.1158

File Length

41472

Description Added

2013-06-19

Description Modified

2013-06-19

Malware Proliferation

Characteristics

This is a Virus

File PropertiesProperty Values
McAfee DetectionVBS/LoveLetter@MM
Length41472 bytes
MD5285d4c3d0b30e40db06f3fe95286f2e2
SHA1a94a4e3d0b4f0d62729d6bd973ab08ae07c5ad59


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWorm/Win32.Mixor
AVG (GriSoft)I-Worm/Luder.A
aviraWORM/Zhelatin.Gen
BitDefenderDeepScan:Generic.Malware.SIM!g.4CA487BE
clamavPUA.Win32.Packer.Pearmor-4
F-ProtW32/Mixor.A
FortiNetW32/LoveLetter.JK!tr
Microsoftvirus:win32/duel.a@mm
SymantecW32.Mixor
EsetWin32/LoveLetter
SophosMal/EncPk-JK
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:

A94A4E3D0B4F0D62729D6BD973AB08AE07C5AD59

The following files have been added to the system:

  • %COMMONPROGRAMFILES%\Adobe\Updater6\yqyajqiaq.jjr
  • C:\bijrazyiy.aib
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\rrrziiirr.qyr
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\yqyajqiaq.jjr
  • C:\byjayayar.abr
  • C:\zbzbyqqjb.yjz
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\byjayayar.abr
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\rrrziiirr.qyr
  • %WINDIR%\microsoft.net\framework\zbzbyqqjb.yjz
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\bijrazyiy.aib
  • C:\abrrararq.qjy
  • %PROGRAMFILES%\MSN\MSNCoreFiles\abrrararq.qjyjaaar.iza
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\zbzbyqqjb.yjz
  • %TEMP%\rjajyy.ybr
  • %PROGRAMFILES%\MSN\MSNCoreFiles\Setup\byjayayar.abriza
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\abrrararq.qjy
  • %PROGRAMFILES%\MSN\MSNCoreFiles\zbzbyqqjb.yjzjaaar.iza
  • C:\rzqyjaaar.iza
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\bijrazyiy.aib
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\iazzzarib.yqa
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\rrrziiirr.qyr
  • %WINDIR%\xwrm.exe
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\rzqyjaaar.iza
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\bijrazyiy.aib
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\yqyajqiaq.jjr
  • %PROGRAMFILES%\MSN\MSNCoreFiles\iazzzarib.yqaar.abriza
  • %COMMONPROGRAMFILES%\Adobe\ARM\1.0\iazzzarib.yqa
  • %PROGRAMFILES%\Windows NT\bijrazyiy.aib
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\bijrazyiy.aib
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\zbzbyqqjb.yjz
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\rzqyjaaar.iza
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\zbzbyqqjb.yjz
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\byjayayar.abr
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\rzqyjaaar.iza
  • %WINDIR%\ehome\iazzzarib.yqa
  • C:\yqyajqiaq.jjr
  • C:\rrrziiirr.qyr
  • C:\iazzzarib.yqa
  • %PROGRAMFILES%\Messenger\rzqyjaaar.iza
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\rzqyjaaar.iza
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\byjayayar.abr
  • %ALLUSERSPROFILE%\Application Data\Adobe\Reader\9.2\ARM\ARM Update\yqyajqiaq.jjr
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\byjayayar.abr
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\rzqyjaaar.iza
  • %PROGRAMFILES%\MSN\MSNCoreFiles\rrrziiirr.qyrjaaar.iza
  • %PROGRAMFILES%\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-[private subnet]-A92000000001}\abrrararq.qjy
  • %PROGRAMFILES%\Microsoft Office\OFFICE11\iazzzarib.yqa
  • %WINDIR%\Installer\{901[private subnet]-11D3-8CFE-0150048383C9}\bijrazyiy.aib
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\abrrararq.qjy
  • %PROGRAMFILES%\Adobe\Reader 9.0\Reader\zbzbyqqjb.yjz

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