Linux.Phalax un virus para GNU/Linux

De nuevo el tema de los Virus en Linux, leyendo de cofradía confirme que Symantec dice haber descubierto un virus que afecta a GNU/Linux.

Es penoso que una compañía seria como Symantec termine publicando semejantes cosas, los virus en Linux simplemente no aplican como tal por la estructura del sistema operativo.

Lo mas penoso en si ya no es publicar que se encontró un código malicioso en Linux, que citando a heatseeker en su comentario en cofradía

se ve tan peligroso como una salchicha armada con un una bazooka lanza chicharos

lo peor es el gran desconocimiento de Symantec en cuanto al sistema operativo, sus consejos para evitar las infecciones caen de lo absurdo a lo gracioso.

Recommendations
Symantec Security Response encourages all users and administrators to adhere to the following basic security “best practices”:
• Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
• If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
• Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services (for example, all Windows-based computers should have the current Service Pack installed.). Additionally, please apply any security updates that are mentioned in this writeup, in trusted Security Bulletins, or on vendor Web sites.
• Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
• Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
• Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
• Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
Writeup By: Alfredo Pesoli

Alfredo Presoli, en la viñeta que indica esto

• Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files

.

Tu consejo es excelente, para un usuario Windows, pero GNU/Linux no ejecuta programas ni scripts de visual basic, batch tampoco, por que no se hereda nada del msdos, tampoco accesos directos pif de Windows y mucho menos protectores de pantalla de Windows que como sabemos son EXE renombrados a SCR, pero de nueva cuenta, Linux no ejecuta programas de Windows, incluso si de alguna forma extraña lograda colarse una de estas cosas por medio del WINE, este quedaría encerrado en el entorno WINE.

Es por notificaciones como la que da Symantec, que existe la falsa idea de que existen Virus como tal en GNU/Linux, Tal cosa no existe.

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