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Asunto:[debunker] aviso de virus
Fecha:Miercoles, 28 de Noviembre, 2001  09:58:29 (-0600)
Autor:LÚSAR <lusar>
En respuesta a:Mensaje 2637 (escrito por Juan Antonio)

W32/Badtrans@MM Help Center
Description - What virus is this? Back to Top
A new variant of Badtrans has been discovered, referred to as Badtrans.b. AVERT has raised the Risk Assessment on this variant of W32/Badtrans@MM to High Risk for Consumers. We have received many reports from the home users that they have become infected. It is believed that failure to update recently has caused this increase in occurrence.

VirusScan and other McAfee products with DAT files 4172 and higher are protected from this variant.

W32/Badtrans@MM is a mass-mailing worm that drops a remote-access Trojan. The virus arrives via email in Microsoft Outlook and attempts to send itself by replying to unread email messages. The email may contain the text "Take a look to the attachment" in the message body and will contain an attachment that is 13,312 bytes in length. The attachment name is created from three sections.

The first part is chosen from the possibilities:

New_Napster_Site README

The second part is chosen from the possibilities:


and the last part from the possibilities:


This new variant also uses the iframe exploit and incorrect MIME header to run automatically on unpatched systems. See Microsoft Security Bulletin (MS01-020) for more information and a patch.

Payload - What can this virus do? Back to Top
If the attachment is opened, the worm displays a message box entitled, "Install error" which reads, "File data corrupt: probably due to a bad data transmission or bad disk access." A copy is saved into the WINDOWS directory as INETD.EXE and an entry is entered into the WIN.INI file to run INETD.EXE at startup. KERN32.EXE (a backdoor Trojan), and HKSDLL.DLL (a valid keylogger DLL) are written to the WINDOWS SYSTEM directory, and a registry entry is created to load the Trojan upon system startup.


Once running, the Trojan attempts to mail the victim's IP Address to the author. Once this information is obtained, the author can connect to the infected system via the Internet and steal personal information such as usernames, and passwords. In addition, the Trojan also contains a keylogger program which is capable of capturing other vital information such as credit card and bank account numbers and passwords.

- How can I detect and remove this virus?
Back to Top VirusScan and Clinic users,
click here to update ActiveShield.
 Retail McAfee VirusScan users,
click here to get the latest DAT file.
Scan Your System for Infected Files
  1. VirusScan Online and Clinic users, click here to perform a Scan.
  2. If W32/Badtrans@MM is found, use the delete option to remove it.
Please select the applicable operating system for further removal instructions:
----- Original Message -----
Sent: Tuesday, November 27, 2001 7:26 PM
Subject: RE: [debunker] aviso de virus

Yo tambien lo tengo, quizas ha entrado por aqui
----- Original Message -----
Desconozco por donde ha entrado, pero al realizar la revisión diaria mi antivirus ha encontrado el W32/Badtrans.B

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