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added falcon shutdown post and removed link

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david 5 years ago
parent
commit
4d49889082
  1. 3
      _data/websites.yml
  2. 16
      _posts/2017-03-18-falcon_shutdown.md

3
_data/websites.yml

@ -9,6 +9,3 @@
- name: "Mumble server - gmur.ml"
url: https://gmur.ml
- name: "Minecraft server - falcon.socialnerds.org"
url: https://falcon.socialnerds.org

16
_posts/2017-03-18-falcon_shutdown.md

@ -0,0 +1,16 @@
---
layout: post
title: Gameserver hack (the falcon has fallen)
---
Hello friends,
our beloved game server (*falcon.socialnerds.org*) has been compromised by a hacker. I learned about it when network access was blocked by the hosting provider today. We don't know exactly how this came to pass but *falcon* was infected by malware which installed the so called **Bill Gates Botnet** ([here](https://www.akamai.com/fr/fr/multimedia/documents/state-of-the-internet/bill-gates-botnet-threat-advisory.pdf) is a very detailed report about it).
Usually these attacks try to brute-force their way into the root account. Though i cannot see how this was possible since we had password authentication and root login disabled right from the beginning.
In the end i was able to clean out the malware and recover all game server data. Though since the attacker could have left more mailicious code i decided to get rid of *falcon* and setup a brand new server at [endeavour.socialnerds.org](https://endeavour.socialnerds.org).
Also i hardened the ssh config of all other machines and implemented stronger passwords (i'm also thinking fail2ban).
Cheers!
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