Threat hunting techniques in Cybersecurity - Step-by-Step Execution

Concept Flow - Threat hunting techniques

Start: Define hypothesis

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Collect data from sources

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Analyze data for anomalies

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Investigate suspicious findings

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Confirm threat or false positive

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Respond and document

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Refine hypothesis and repeat

Threat hunting starts with a guess about threats, then collects and analyzes data to find suspicious activity, investigates it, confirms threats, responds, and improves the process.

Execution Sample

Cybersecurity

1. Form hypothesis about threat
2. Gather logs and data
3. Search for unusual patterns
4. Investigate alerts
5. Take action if threat found

This sequence shows the basic steps of threat hunting from guessing a threat to acting on findings.

Analysis Table

Step	Action	Data/Condition	Result	Next Step
1	Form hypothesis	Example: Suspicious login times	Hypothesis ready	Collect data
2	Collect data	Logs from servers and endpoints	Data gathered	Analyze data
3	Analyze data	Look for logins outside normal hours	Found unusual login at 3 AM	Investigate
4	Investigate	Check user activity and IP address	IP is from unknown location	Confirm threat
5	Confirm threat	Match with known attack patterns	Threat confirmed	Respond
6	Respond	Alert security team and isolate system	Threat contained	Document and refine
7	Document and refine	Record findings and update hypothesis	Improved hunting process	Repeat cycle

💡 Cycle ends after response and documentation, ready to start new hunt with refined hypothesis

State Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	After Step 4	After Step 5	After Step 6	Final
Hypothesis	None	Suspicious login times	Suspicious login times	Suspicious login times	Suspicious login times	Suspicious login times	Suspicious login times	Refined hypothesis
Data collected	None	None	Logs from servers and endpoints	Logs from servers and endpoints	Logs from servers and endpoints	Logs from servers and endpoints	Logs from servers and endpoints	Logs archived
Findings	None	None	None	Unusual login at 3 AM	IP from unknown location	Threat matched	Threat contained	Documented

Key Insights - 3 Insights

Why do we start threat hunting with a hypothesis instead of random searching?

Starting with a hypothesis focuses the search on likely threats, making analysis efficient and targeted, as shown in Step 1 of the execution_table.

What if the data collected shows no anomalies? Do we stop hunting?

No, if no anomalies are found, the hypothesis can be refined and the process repeated, as indicated in the last step of the execution_table.

How do we know when a suspicious finding is a real threat?

By investigating and matching findings with known attack patterns (Step 5), we confirm if it is a real threat or a false positive.

Visual Quiz - 3 Questions

Look at the execution_table at Step 3. What unusual data was found during analysis?

A Normal login times

B Unusual login at 3 AM

C No data collected

D Threat confirmed

💡 Hint

Check the 'Result' column at Step 3 in the execution_table.

At which step does the threat hunting process confirm a threat?

A Step 2

B Step 4

C Step 5

D Step 6

💡 Hint

Look for 'Confirm threat' action in the execution_table.

If the hypothesis is refined after documentation, what happens next?

A The hunting cycle repeats

B Data collection repeats

C The process ends

D Threat is ignored

💡 Hint

See the 'Next Step' column after Step 7 in the execution_table.

Concept Snapshot

Threat hunting is a proactive search for hidden threats.
Start with a hypothesis about suspicious activity.
Collect and analyze data from logs and endpoints.
Investigate anomalies to confirm threats.
Respond and document findings.
Repeat with refined hypotheses.

Full Transcript

Threat hunting techniques involve starting with a guess or hypothesis about possible threats. Then, data is collected from various sources like server logs and endpoint devices. This data is analyzed to find unusual patterns or anomalies. When suspicious activity is found, it is investigated further to confirm if it is a real threat by comparing it with known attack patterns. Once confirmed, the security team responds to contain the threat and documents the findings. The process is then refined and repeated to improve future threat detection.