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18
votes
4answers
4k views

How do you know your server has been compromised?

I recently helped a client who had their server hacked. The hackers added some PHP code into the header of the homepage redirecting the user to a porn website — but only if they came from Google. This ...
4
votes
2answers
517 views

How effective is an IDS at catching targeted attacks

I have recently become very familiar with IBM Site Protector. As I understand things, Site Protector is in the top tier of IPS/IDS systems, used by some of the largest Fortune 500 companies. I was ...
2
votes
2answers
733 views

How to check if a website is sending out a virus?

I'm a webmaster at a company without much knowledge of IT Security. We are running 6 computers connected to a central server that also hosts our website. 3 out of 6 people in the office have gotten ...
2
votes
1answer
139 views

Can linux (be made to) detect foreign connections to the ram bus?

I've been made aware on many answers and some comments that an attacker can read memory while a system is still running by attaching some sort of connection directly to the ram bus. Can linux ...
1
vote
3answers
417 views

How can alleged illegal downloading be detected?

Joel Tenenbaum was accused of illegally downloading 30 songs. How might his action have been detected? Can anyone show a concrete method? Update Using a honey pot or monitoring the peers list makes ...
1
vote
3answers
2k views

How to trace malicious hackers?

What are some of the ways law enforcement agencies can trace a hacking attempt back to the hacker? IP and MAC addresses can be spoofed easily, hackers can easily hide their tracks using compromised ...