W32/Mydoom.n@MM!84D7F​3DD2654

This page shows details and results of our analysis on the malware W32/Mydoom.n@MM!84D7F3DD2654

Overview

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.


Minimum Engine

5600.1067

File Length

29568

Description Added

2013-04-04

Description Modified

2013-04-04

Malware Proliferation

Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionW32/Mydoom.n@MM
Length29568 bytes
MD584d7f3dd2654eb34df0d4ed53ae08a0c
SHA12c70c416cce6ea27c7e6e04f628093aa5ae3b4cd


Other Common Detection Aliases

Company NamesDetection Names
ahnlabWin32/MyDoom.worm.21008
avastWin32:Mydoom-L
AVG (GriSoft)I-Worm/Mydoom.N
aviraWorm/Mydoom.L.1
KasperskyEmail-Worm.Win32.Mydoom.l
Dr.WebWin32.HLLM.MyDoom.33808
FortiNetW32/MyDoom.M@mm
Microsoftworm:win32/mydoom.l@mm
SymantecW32.Mydoom.L@mm
EsetWin32/Mydoom.Q
normanmydoom.i@mm
SophosW32/MyDoom-N
vba32Worm.Mydoom.L

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


ActivitiesRisk Levels
Attempts to send email messagesMedium
Attempts to write file to shared locations.Low
Enumerates many system files and directories.Low
Adds or modifies Internet Explorer cookiesLow
No digital signature is presentInformational


McAfee ScansScan Detections
McAfee BetaW32/Mydoom.n@MM
McAfee SupportedW32/Mydoom.n@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:

2C70C416CCE6EA27C7E6E04F628093AA5AE3B4CD

The following files have been added to the system:

  • C:\Archivos de programa\Gnucleus\Downloads\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\EXPEDITN\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Reference Titles\Winamp 5.0 (en) Crack.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\EDGE\WinRAR.v.3.2.and.key.ShareReactor.com
  • %PROGRAMFILES%\Morpheus\My Shared Folder\Winamp 5.0 (en).com
  • C:\Archivos de programa\Shareaza\Downloads\Incoming\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\60\WinRAR.v.3.2.and.key.exe
  • C:\Archivos de programa\Edonkey2000\Incoming\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\TextConv\Harry Potter.com
  • C:\Archivos de programa\KMD\My Shared Folder\WinRAR.v.3.2.and.key.exe
  • %PROGRAMFILES%\Shareaza\Downloads\Incoming\Kazaa Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\admisapi\scripts\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Portal\Kazaa Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\RIPPLE\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bin\Winamp 5.0 (en) Crack.com
  • %PROGRAMFILES%\Edonkey2000\Incoming\Kazaa Lite.com
  • C:\Archivos de programa\Bearshare\Shared\WinRAR.v.3.2.and.key.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Speech\WinRAR.v.3.2.and.key.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Speech\1033\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\DEEPBLUE\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Smart Tag\1033\ICQ 4 Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\60\BIN\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\admcgi\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\isapi\WinRAR.v.3.2.and.key.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\Kazaa Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Smart Tag\WinRAR.v.3.2.and.key.exe
  • %TEMP%\K7dfbcjUR.txt
  • %COMMONPROGRAMFILES%\Microsoft Shared\GRPHFLT\WinRAR.v.3.2.and.key.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\ICQ 4 Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\DRIVERS\WinRAR.v.3.2.and.key.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\ARCTIC\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\WinRAR.v.3.2.and.key.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Smart Tag\LISTS\1033\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\_vti_adm\index.exe
  • %PROGRAMFILES%\imesh\my shared folder\Winamp 5.0 (en) Crack.exe
  • C:\Archivos de programa\imesh\my shared folder\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bin\1033\index.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\REFINED\Kazaa Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1028\Winamp 5.0 (en) Crack.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\_vti_aut\WinRAR.v.3.2.and.key.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1040\Winamp 5.0 (en) Crack.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\SLATE\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\MSORUN\Kazaa Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\BLUECALM\Kazaa Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\isapi\_vti_aut\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\JOURNAL\WinRAR.v.3.2.and.key.com
  • %PROGRAMFILES%\KaZaA Lite\My Shared Folder\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Source Engine\Kazaa Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\PROFILE\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1036\Winamp 5.0 (en).exe
  • C:\Archivos de programa\KaZaA Lite\My Shared Folder\ICQ 4 Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\VGX\index.exe
  • %PROGRAMFILES%\KMD\My Shared Folder\Harry Potter.exe
  • C:\Archivos de programa\kazaa\my shared folder\WinRAR.v.3.2.and.key.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\VBA\VBA6\1033\Harry Potter.com
  • C:\Archivos de programa\limewire\Shared\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\SONORA\Winamp 5.0 (en).com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\SPRING\index.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1033\index.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\SATIN\ICQ 4 Lite.exe
  • %PROGRAMFILES%\Shareaza\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\BREEZE\Kazaa Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\NETWORK\Kazaa Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Web Folders\1033\Kazaa Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\Web Components\11\1033\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Web Folders\Kazaa Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\EURO\ICQ 4 Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\servsupp\Harry Potter.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\VC\WinRAR.v.3.2.and.key.com
  • %PROGRAMFILES%\limewire\Shared\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\_vti_bin\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1042\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\IRIS\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\isapi\_vti_adm\Kazaa Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\2052\Winamp 5.0 (en) Crack.exe
  • %PROGRAMFILES%\Bearshare\WinRAR.v.3.2.and.key.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\1033\index.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\CAPSULES\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Web Components\WinRAR.v.3.2.and.key.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\COMPASS\ICQ 4 Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\CONCRETE\ICQ 4 Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\PAPYRUS\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Harry Potter.ShareReactor.com
  • C:\Archivos de programa\Shareaza\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\admcgi\scripts\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\CASCADE\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\admisapi\index.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bots\vinavbar\ICQ 4 Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\OFFICE11\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\BLENDS\WinRAR.v.3.2.and.key.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\11.0\1033\Kazaa Lite.exe
  • %ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\index.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Web Components\11\index.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Stationery\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\INK\Winamp 5.0 (en) Crack.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\PROOF\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\VBA\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\EVRGREEN\WinRAR.v.3.2.and.key.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\MSClientDataMgr\Winamp 5.0 (en).exe
  • C:\Archivos de programa\Bearshare\index.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\AFTRNOON\Winamp 5.0 (en) Crack.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\CANYON\ICQ 4 Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1025\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\WATERMAR\WinRAR.v.3.2.and.key.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\DAO\index.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1031\Kazaa Lite.com
  • %PROGRAMFILES%\Gnucleus\Downloads\Incoming\Winamp 5.0 (en).exe
  • %PROGRAMFILES%\ICQ\Shared files\Winamp 5.0 (en) Crack.ShareReactor.com
  • %PROGRAMFILES%\Bearshare\Shared\Kazaa Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\40\bots\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\ICE\index.ShareReactor.com
  • %PROGRAMFILES%\kazaa\my shared folder\Winamp 5.0 (en) Crack.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Smart Tag\LISTS\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\3082\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\Triedit\Winamp 5.0 (en).com
  • %COMMONPROGRAMFILES%\Microsoft Shared\VBA\VBA6\Winamp 5.0 (en).exe
  • %TEMP%\tmp29.tmp
  • C:\Archivos de programa\Morpheus\My Shared Folder\ICQ 4 Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\DW\1041\Winamp 5.0 (en).exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\MODI\Harry Potter.ShareReactor.com
  • C:\Archivos de programa\ICQ\Shared files\Harry Potter.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\SUMIPNTG\Kazaa Lite.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\SKY\index.com
  • %PROGRAMFILES%\Shareaza\Downloads\Kazaa Lite.com
  • C:\Archivos de programa\Shareaza\Downloads\Winamp 5.0 (en).ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\PIXEL\Winamp 5.0 (en) Crack.exe
  • %COMMONPROGRAMFILES%\Microsoft Shared\PROOF\1033\Kazaa Lite.ShareReactor.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\WATER\Kazaa Lite.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\MSInfo\WinRAR.v.3.2.and.key.com
  • C:\Archivos de programa\Gnucleus\Downloads\Incoming\Winamp 5.0 (en).com
  • %COMMONPROGRAMFILES%\Microsoft Shared\web server extensions\60\BIN\1033\Winamp 5.0 (en).com
  • %PROGRAMFILES%\Gnucleus\Downloads\Harry Potter.com
  • %COMMONPROGRAMFILES%\Microsoft Shared\THEMES11\AXIS\Harry Potter.ShareReactor.com

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

  • %TEMP%\tmp22.tmp
  • %TEMP%\tmp19.tmp
  • %TEMP%\tmp15.tmp
  • %WINDIR%\lsass.exe
  • %TEMP%\tmp23.tmp
  • %TEMP%\tmp12.tmp
  • %TEMP%\tmp2B.tmp
  • %TEMP%\tmpE.tmp
  • %TEMP%\tmp20.tmp
  • %TEMP%\tmp13.tmp
  • %TEMP%\tmp2C.tmp
  • %TEMP%\tmp1B.tmp
  • %TEMP%\tmp10.tmp
  • %TEMP%\tmp26.tmp
  • %TEMP%\tmp1C.tmp
  • %TEMP%\tmp2A.tmp
  • %TEMP%\tmp27.tmp
  • %TEMP%\tmp16.tmp
  • %TEMP%\tmp21.tmp
  • %TEMP%\tmp1A.tmp
  • %TEMP%\tmp11.tmp
  • %TEMP%\tmpF.tmp
  • %TEMP%\tmp1F.tmp
  • %TEMP%\tmp1E.tmp
  • %TEMP%\tmp2D.tmp
  • %TEMP%\tmp28.tmp
  • %TEMP%\tmp24.tmp
  • %TEMP%\tmp17.tmp
  • %TEMP%\tmp2E.tmp
  • %TEMP%\tmp1D.tmp
  • %TEMP%\tmp25.tmp
  • %TEMP%\tmp18.tmp
  • %TEMP%\tmp14.tmp

The following registry elements have been created:

  • HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POSIX\
  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POSIX\

The following registry elements have been changed:

  • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\TRAYBAR = %WINDIR%\lsass.exe

The applications attempted the following network connection(s):

  • [private subnet]:1042

E-mails Sent:
To: (Varies, the following have been observed)

  • charsets@[Domain Removed]
  • vente@[Domain Removed]
  • jimaz@[Domain Removed]
  • unicode-inc@[Domain Removed]
  • sales@[Domain Removed]
  • oliver.gu@[Domain Removed]
  • winrar@[Domain Removed]
  • cro@[Domain Removed]
  • Reads email addresses from Email Lists
  • user1@Attempts to send emails to local domains
  • openssl-core@[Domain Removed]
  • vmlich@[Domain Removed]
  • alex@[Domain Removed]
  • tjh@[Domain Removed]
  • eay@[Domain Removed]
  • provision@[Domain Removed]

From: (Varies, the following have been observed)

  • MAILER-DAEMON@[Domain Removed]
  • postmaster@[Domain Removed]
  • noreply@[Domain Removed]
  • oliver.gu@[Domain Removed]
  • noreply@Attempts to send emails to local domains
  • MAILER-DAEMON@Attempts to send emails to local domains
  • Reads email addresses from Email Lists

Subject: (Varies, the following have been observed)

  • Message could not be delivered
  • Returned mail: Data format error
  • Returned mail: see transcript for details
  • Delivery reports about your e-mail
  • [no subject]
  • Mail System Error - Returned Mail
  • Delivery failed
  • Status
  • Click me baby, one more time
  • test

Symptoms

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

Method 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.

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