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W32/Kitro-D

Aliases
  • W32/Duni.worm.c
  • WORM_ARGEN.A
  • I-Worm.Kitro.d
  • W32/Grade.A
Category
Type
What to do
Prevalence low high

Summary

 
Detected by All Sophos products
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Action

Please follow the instructions for removing worms.

Please read the instructions for removing worms.

Windows NT/2000/XP

In Windows NT/2000/XP you will also need to edit the following registry entries. The removal of these entries is optional in Windows 95/98/Me.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\NWexe

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\KAZAAkCuf = 9

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
PAV.EXE = <random number>

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\ZonaVirus = 0

HKLM\Software\KasperskyLab\SharedFiles\Folder = <random number>

and delete them if they exist.

Close the registry editor.

More Information

W32/Kitro-D is an email worm which arrives in an email with one of the following subject line, message body and attachment name combinations:

Subject line: Te han enviado una postal
Message body: Postales NetWork (c)1999-2002
Attached file: PostalDeAmistad.pif

Subject line: Leelo y reenvialo a quienes aprecias.
Message body: Si lo que expone este documento es lo que sientes, envialo a tus amigos, algun sueño se hara realidad.
Attached file: Cristo_Nos_Enseña.Doc.pif

Subject line: Listado de falsas alarmas
Message body: Te envio la lista de falsas alarmas, para que no hagas casoa las mentiras, chao que estes bien
Attached file: Listado.txt.by.Microsoft.com

Subject line: This is a last hoax list
Message body: I send the list of false alarms, so that you do not make case to the lies bye
Attached file: List.txt.by.Microsoft.com

Subject line: Para los amigos
Message body:
Facturas
Aqui adjunto las Facturas que nos ha pedido, ruego que nos envie lo que dentro del documento se especifica, Saludos.
Attached file: Facturas556.XLS.pif

Subject line: Fw: Enviame tu foto
Message body: bueno, aqui esta mi foto cuando estuve viviendo en los andes, disfruta el paisaje
Attached file: EnLosAndes.pif

Subject line: Es posible que nos roben la identidad
Message body: lee el documento y veras que puede ser verdad, luego enviaselo a tus amigos para que no les suceda eso
Attached file: YaNoPuedoSerYoMismo.DOC.pif

Subject line: Messenger vulnerable
Message body: si, ahora nos pueden espiar la cuenta, te envio el documento donde dice que es lo que se debe hacer para arreglarlo, arreglalo lo antes posible
Attached file: ReparacionDeMessenger.DOC.pif

Subject line: 77:Test de amor
Message body: Hace el test de amor, calcula el puntaje y reenvialo a tus amigos, pero recuerda hacerlo con Copia Oculta para que no sepan nuestras direcciones
Attached file: TestDeAmoryAmistad.DOC.pif


When run it will copy itself to the following locations:

In C:\ as:
" .exe"
"AUTOEXEC.BAT .exe"
"AVP-SpanishPatch.exe"
"AVP40Crack.exe"
"BOOTLOG.PRV .exe"
"COMMAND.COM .exe"
"Config.sys .exe"
"CopyPSXgamesV12.exe"
"CounterStrikeMoreServers.exe"
"GameCube-FreeEmulator.exe"
"GamesPSX2Emulator.exe"
"HackTools.exe"
"IO.SYS .exe"
"Jedi2-FullCrack.exe"
"MessengerSkins29.exe"
"MP3EncoderDecoder58.exe"
"MSDOS.--- .exe"
"MSDOS.SYS .exe"
"PandaAllCracks.exe"
"PSX2-Emulator.exe"
"PSXEmulator_Full.exe"
"ResidentEvil-Crack.exe"
"SCANDISK.LOG .exe"
"Sexo-Asiatico-FullVideo.exe"
"SexoenlaCalle-Video.exe"
"SUHDLOG.DAT .exe"
"SYSTEM.1ST .exe"
"VIDEOROM.BIN .exe"
"W98ToXpActualization.exe"
"WindowsXP-Serials.exe"
"X-Box_Emulator.exe"
"z .exe"

and in C:\Windows as:

"Cristo_Nos_Ensea.Doc.pif"
"EnLosAndes.pif"
"Facturas556.XLS.pif"
"List.txt.by.Microsoft.com"
"Listado.txt.by.Microsoft.com"
"PostalDeAmistad.pif"
"ReparacionDeMessenger.DOC.pif"
"ShellIconCache"
"TestDeAmoryAmistad.DOC.pif"
"YaNoPuedoSerYoMismo.DOC.pif"

The worm will set the following registry entry to point to one of the files created in C:\Windows:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\NWexe

The worm will also create the following registry entries:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\KAZAAkCuf = 9

HKLM\Software\KasperskyLab\SharedFiles\Folder = <random number>

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
PAV.EXE = <random number>

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\ZonaVirus = 0

The worm drops a Visual Basic script in C:\BanderaNegra.vbs. This script attempts to email the worm to contacts in the Outlook address book. The script is detected as VBS/Kitro-D.

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