IDS Fundamentals| TryHackMe — Writeup

Jynxx
1 min readNov 2, 2024

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Task 1

Can an intrusion detection system (IDS) prevent the threat after it detects it? Yea/Nay

Nay

Task 2

Which type of IDS is deployed to detect threats throughout the network?

Network Intrusion Detection System

Which IDS leverages both signature-based and anomaly-based detection techniques?

Hybrid IDS

Task 3

Which mode of Snort helps us to log the network traffic in a PCAP file?

Packet Logging Mode

What is the primary mode of Snort called?

Network Intrusion Detection System Mode

Task 4

Where is the main directory of Snort that stores its files?

/etc/snort

Which field in the Snort rule indicates the revision number of the rule?

rev

Which protocol is defined in the sample rule created in the task?

icmp

What is the file name that contains custom rules for Snort?

local.rules

Task 5

What is the IP address of the machine that tried to connect to the subject machine using SSH?

10.11.90.211

What other rule message besides the SSH message is detected in the PCAP file?

Ping Detected

What is the sid of the rule that detects SSH?

1000002

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