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Delf.V is a mass-mailing worm that sends out FIFA World Cup (Football/Soccer) related emails. It contains subjects such as "Soccer fans killed five teens" and "Crazy soccer fans".


Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

Delf.V is a mass-mailing worm that sends out FIFA World Cup (Football/Soccer) related emails.

Installation to the System

Delf.V copies itself to the Windows system folder as a file named: msctools.exe.It Installs the following registry launch points:

  • "nsdevice" = "%SysDir%\msctools.exe" [HKLM\Software\Microsoft\Windows\CurrentVersion\Run]
  • "nsdevice" = "%SysDir%\msctools.exe" [HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices]
  • "nsdevice" = "%SysDir%\msctools.exe" [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]

%SysDir% represents the Windows System Folder.The mutex used by Delf.V is named "dezas".

Spreads via email

Delf.V collects email addresses from the following list of file extensions:

  • adb
  • dbx
  • doc
  • eml
  • htm
  • html
  • mbx
  • mdx
  • msg
  • nch
  • not
  • oft
  • rtf
  • sht
  • tbb
  • tbi
  • txt
  • wab
  • xls
  • xml

Addresses are discarded if they contain one of the following keywords:

  • .edu
  • .gov
  • .mil
  • abuse
  • addres
  • admin
  • anonymous
  • anti
  • anyone
  • aol
  • apache
  • avp
  • berkeley
  • borlan
  • bsd
  • bug
  • certific
  • contact
  • cops
  • defend
  • echo
  • example
  • fbi
  • fido
  • foo.
  • google
  • gov.
  • help
  • icrosof
  • info
  • inpris
  • kaspersk
  • kernel
  • linux
  • local
  • mcafee
  • microsof
  • mozilla
  • mydomai
  • nobody
  • nodomai
  • norton
  • not
  • nothing
  • page
  • panda
  • pgp
  • policy
  • postmaster
  • privacy
  • random
  • reply
  • report
  • ripe.
  • root
  • samples
  • secur
  • sendmail
  • service
  • spam
  • submit
  • support
  • symantec
  • user
  • virus
  • webmaster
  • webmin
  • webmist

The harvested addresses are saved as two files named cats.jpg and cats2.jpg.

Delf.V tries to post the addresses to [***] It also tries to download and execute a file from http://couple[***].com/tumbs/dianaimg.exe.

Delf.V email contains the following characteristics:




  • Crazy soccer fans
  • My sister whores, sh[*]t i dont know
  • My tricks for you
  • Naked World Cup game set
  • Please reply me Tomas
  • Soccer fans killed five teens

Body Texts:

  • Crazy soccer fans killed two teens, watch what they make on photos. Please report on this all who know.
  • Emily Carr was an artist known for her prudery, but now the Portrait Gallery of Canada has acquired a nude self-portrait. View photos.
  • Halo Markus, i sent my nude pics. Please reply me with you nude photos ;). Best regard You Sweet Kitty
  • I wait you photos from New York. I sent my pics where i naked for you. Please reply me. Linda Salivan
  • Nudists are organising their own tribute to the world cup, by staging their own nude soccer game, though it is not clear how the teams will tell each other apart. Good photos ;)
  • Soccer fans killed five teens, watch what they make on photos. Please report on this all who know.

Attachement Names:

  • emily_selfphoto.jpg.exe
  • kelly_nude_imgs.jpg.exe
  • linda_bigtit.gif.exe
  • soccer_fans.jpg.exe
  • soccer_nudist.bmp.exe
  • soccer_pics.jpg.exe