How to restore a hacked Linux server

Tuesday, 18 July 2006, 9:11 PM EST

In most cases if you have a system compromise at root level, you will hear that you have to fully reinstall the system and start fresh because it will be very hard to remove all the hidden files the attacker has placed on the system. This is completely true and if you can afford to do this then you should do it. Still even in this case the compromised system contains valuable information that can be used to understand the attack and prevent it in the future.

At the MDLog:/sysadmin blog.

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