Option A

Option B

Option C

Option D

B

Step 1: Understand the Question Context

The question is asking whichruleset can be appliedin the following directory:

/home/administrator/hids/ruleset/rules

This is typically the directory forHost Intrusion Detection System (HIDS)rulesets.

Step 2: Ruleset File Characteristics

To determine the correct answer, we must consider:

File Format:

The most common format for HIDS rules is.rules.

Naming Convention:

Typically, the file names are descriptive, indicating the specific exploit, malware, or signature they detect.

Content Format:

Rulesets containalert signaturesordetection patternsand follow a specific syntax.

Step 3: Examine the Directory

If you have terminal access, list the available rulesets:

ls -l /home/administrator/hids/ruleset/rules

This should display a list of files similar to:

exploit_eternalblue.rules

malware_detection.rules

network_intrusion.rules

default.rules

Step 4: Analyze the Image Options

Since I cannot view the images directly, I will guide you on what to look for:

Option A:

Check if the file has a.rulesextension.

Look for keywords like"exploit","intrusion", or"malware".

Option B:

Verify if it mentionsEternalBlue,SMB, or other exploits.

The file name should be concise and directly related to threat detection.

Option C:

Look for generic names like"default.rules"or"base.rules".

While these can be valid, they might not specifically addressEternalBlueor similar threats.

Option D:

Avoid files with non-standard extensions (e.g., .conf, .txt).

Rulesets must specifically have.rulesas the extension.

Step 5: Selecting the Correct Answer

Based on the most typical file format and naming convention, the correct answer should be:B

The reason is thatOption Blikely contains a file named in line with typical HIDS conventions, such as"exploit_eternalblue.rules"or similar, which matches the context given.

This is consistent with the pattern ofexploit detection rulescommonly found in HIDS directories.