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Host Intrusion Detection Systems can provide a wealth of information about a running system. They can help identify anomalies which could have been caused by a security incident and also monitor specified resources.
In this lab exercise, OSSEC event logs of a compromised machine are provided. Analyze the logs and answer the following questions:
- The attacker machine launched a brute force attack against the server. What was the IP address of the attacker machine?
- What was the name of the user account against which the brute force attack was launched?
- The attacker uploaded a payload script to the server and executed it as root. What was the name of that script?
- The payload script backdoored a system binary. Provide the full path of that system binary.
- OSSEC logs are present at /var/ossec/logs/alerts/alerts.log
|1.||The attacker machine launched a brute force attack against the server. What was the IP address of the attacker machine?||
|2.||What was the name of the user account against which the brute force attack was launched?||
|3.||The attacker uploaded a payload script to the server and executed it as root. What was the name of that script?||
|4.||The payload script backdoored a system binary. Provide the full path of that system binary.||
The following activities are strictly prohibited on this website unless otherwise explicitly stated as allowed in the mission statement:
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- Using brute force attacks
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- Attacking other student machines in challenges where you might achieve a shell on the vulnerable system
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