Virus Profile: W32/Mydoom.n@MM!83AB48DEE611

Threat Search
Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 3/19/2013
Date Added: 3/19/2013
Origin: Unknown
Length: 26072
Type: Trojan
Subtype: Win32
DAT Required: 7019
Removal Instructions


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.

Indication of Infection

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

Methods 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.


Virus Characteristics

This is a Trojan

File PropertiesProperty Values
McAfee DetectionW32/Mydoom.n@MM
Length26072 bytes

Other Common Detection Aliases

Company NamesDetection Names
AVG (GriSoft)I-Worm/Mydoom.N

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.
%WINDIR% = \WINDOWS (Windows 9x/ME/XP/Vista/7), \WINNT (Windows NT/2000)
%PROGRAMFILES% = \Program Files

The following files were analyzed:


The following files have been added to the system:

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

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

  • %TEMP%\tmp14.tmp
  • %TEMP%\tmp10.tmp
  • %TEMP%\tmp24.tmp
  • %TEMP%\tmp20.tmp
  • %TEMP%\tmp31.tmp
  • %TEMP%\tmp32.tmp
  • %TEMP%\tmp15.tmp
  • %TEMP%\tmp25.tmp
  • %TEMP%\tmpF.tmp
  • %TEMP%\tmp12.tmp
  • %TEMP%\tmp2E.tmp
  • %TEMP%\tmp22.tmp
  • %TEMP%\tmp1F.tmp
  • %TEMP%\tmp33.tmp
  • %TEMP%\tmp2F.tmp
  • %TEMP%\tmp27.tmp
  • %TEMP%\tmp34.tmp
  • %TEMP%\tmp30.tmp
  • %TEMP%\tmp1D.tmp
  • %TEMP%\tmp2D.tmp
  • %TEMP%\tmp18.tmp
  • %TEMP%\tmp2C.tmp
  • %TEMP%\tmp28.tmp
  • %TEMP%\tmp16.tmp
  • %TEMP%\tmp26.tmp
  • %TEMP%\tmp29.tmp
  • %TEMP%\tmp2B.tmp
  • %TEMP%\tmp11.tmp
  • %TEMP%\tmp19.tmp
  • %TEMP%\tmp21.tmp
  • %TEMP%\tmp1E.tmp
  • %TEMP%\tmp1A.tmp
  • %TEMP%\tmpE.tmp
  • %TEMP%\tmp2A.tmp
  • %WINDIR%\lsass.exe
  • %TEMP%\tmp1B.tmp
  • %TEMP%\tmp17.tmp
  • %TEMP%\tmp13.tmp
  • %TEMP%\tmp1C.tmp
  • %TEMP%\tmp23.tmp

The following registry elements have been created:


The following registry elements have been changed:


The applications attempted the following network connection(s):

  • 68.38.192.**:1042

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

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

From: (Varies, the following have been observed)

  • MAILER-DAEMON@[Domain Removed]
  • noreply@Attempts to send emails to local domains
  • noreply@[Domain Removed]
  • postmaster@[Domain Removed]
  • Reads email addresses from Email Lists
  • postmaster@Attempts to send emails to local domains
  • tjh@[Domain Removed]
  • provision@[Domain Removed]
  • user1@Attempts to send emails to local domains
  • eay@[Domain Removed]
  • vente@[Domain Removed]

Subject: (Varies, the following have been observed)

  • [no subject]
  • Mail System Error - Returned Mail
  • Returned mail: see transcript for details
  • Returned mail: Data format error
  • Beez
  • Delivery failed
  • Message could not be delivered
  • Test


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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