21-4-2010, grave fallo en la actualización del antivirus McAfee

22 04 2010

Todos aquellos ordenadores instalados con Windows XP SP3 y que usen Mcafee como solución de antivirus pueden haberse visto afectados en el día de ayer por una serie de anomalías causadas por la última actualización de Mcafee, ésta ha causado graves fallos en el funcionamiento de Windows.
Entre otras anomalía paraliza la mayoría de los servicios del equipo, con lo que ello conlleva, anula conexiones de red, impresoras, herramientas básicas de windows…modifica la barra de tareas….

http://www.elpais.com/articulo/tecnologia/falsa/deteccion/virus/paraliza/decenas/miles/ordenadores/elpeputec/20100422elpeputec_2/Tes

SOLUCIÓN:

Recommended Recovery SuperDAT Procedure
1. From a machine that has Internet access, locate and download the Recovery SuperDAT at http://download.nai.com/products/mcafee-avert/tools/SDAT5958_EM.exe and save it to portable media.
2. Take the portable media to each affected machine and run the tool. If you are not able to run the tool on the affected machine, boot in safe mode
3. Execute the Recovery SuperDAT tool
4. Reboot in normal mode
5. Use the product update to update to 5959 (http://download.nai.com/products/licensed/superdat/nai/Spanish/sdat5959.exe )


Acciones

Information

One response

29 04 2010
Marcos

Añadir que McAfee ha publicado la siguiente nota para ayudar a los clientes afectados a solucionar los problemas que este fallo ha ocasionado:

IF YOU ARE HAVING ISSUES RELATED TO DAT 5958, TWO IMPORTANT REMEDIATION SOLUTIONS ARE NOW AVAILABLE.

McAfee has TWO solutions to help you remediate any issues you may be experience due to the DAT 5958 issue.

SOLUTION #1 – McAfee SuperDAT Remediation Tool

The McAfee SuperDAT Remediation Tool suppresses the driver causing the DAT 5958 false positive by applying an Extra.dat file in c:\program files\commonfiles\mcafee\engine folder. It then restores the svchost.exe by looking first in %SYSTEM_DIR%\dllcache\svchost.exe, if not present it will attempt a restore from %WINDOWS%\servicepackfiles\i386\svchost.exe, if not present it will attempt a restore from quarantine. After the tool is run, the machine needs to be rebooted.

Recommended Recovery SuperDAT Procedure

1. From a machine that has Internet access, locate and download the Recovery SuperDAT at http://download.nai.com/products/mcafee-avert/tools/SDAT5958_EM.exe and save it to portable media.

2. Take the portable media to each affected machine and run the tool. If you are not able to run the tool on the affected machine, boot in safe mode

3. Execute the Recovery SuperDAT tool

4. Reboot in normal mode

5. Use the product update to update to DAT 5959 or later

SOLUTION #2 – McAfee Bootable ISO Image for Download (NEW)

If you have remote users and need to create your own bootable disk for distribution, you now can download the ISO image (135MB) to create a 5958 Recovery Tool disk.

To obtain a copy of this image, please go to http://my.mcafee.com/forms/2010-0426_DAT5958BootDiskEULA and complete the information requested. McAfee will immediately email you the link to a ZIP package containing the ISO image (135MB). NOTE: McAfee will be tracking download click-throughs for licensing purposes.

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