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How Hackers Gather Information and Exploit Vulnerabilities

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Learn about the methods hackers use to gather information on target hosts and exploit vulnerabilities. Find out how to protect your system and educate your users.

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How Hackers Gather Information and Exploit Vulnerabilities

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  1. how do hackers do it?

  2. 1. gather info on the target host

  3. whois Organization: Fiji ABCDEFG Inc. Admin-Name: Josese Bula Admin-Mailbox: jbula@abcdef.com.fj Tech-Name: Maciu Vinaka Tech-Mailbox: mvinaka@abcdef.com.fj NS1-Hostname: dns1.somenetwork.com.fj NS1-Netaddress: 202.151.23.2

  4. Google Find vulnerabilities, revealing error messages, usernames and sometimes even passwords on your target host, all without ever connecting to it see http://johnny.ihackstuff.com/

  5. 2. scan/sniff to find a way in

  6. nmap superscan

  7. tcpdump wireshark (formerly ethereal) dsniff

  8. nessus

  9. 3. exploit vulnerabilities

  10. metasploit framework

  11. john the ripper cain and abel thc-hydra

  12. 4. cover your tracks

  13. nc -L -d -t -p 23 -e cmd.exe rootkits

  14. edit logs

  15. help! what can i do?

  16. . remove all unnecessary services . firewall services that do not need remote access . actively patch vulnerabilities . use strong passwords most importantly: . educate your users again and again and again

  17. chris hammond-thrasher, cissp hammondthrasher_c@usp.ac.fj

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