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What is Threat Hunting in Cyber Security? An Ultimate Technique

Be prepared to ward off any virtual threat your organization receives or may receive using diligent and effectual analytics tools designed with new strategies and techniques!

Quick Summary: It is astonishing how promptly technology evolves with each day. And, it is certainly not a hidden fact that each technological advancement accompanies a rise in cybercrimes. Worry no more! Here is a perfect solution to save your business from unforeseen digital attacks.

Almost everyone knows cybersecurity risks are no less than doom for all sizes of businesses. One click with an evil intention can cost you your whole business. As hackers and cybercriminals continue to sophisticate their attacks using new and malicious tactics, it has become impossible to dodge them. Every year comes with a new record of digital attacks. 2021 ended with corporations experiencing 50% more cyber attack attempts per week. Do you know there were about 52 million data breaches worldwide in just the second quarter of 2022? With the increasing number of virtual crimes and daily news headlines, many enterprises are aware of security threats and incidents.

 You don’t need to be a specialist to comprehend the recent security risks. But that is the easy part! The tricky part is to ascertain why these attacks happen and when you may become a victim. Unfortunately, the daunting part does not end there. Apart from the mentioned things, it is crucial to figure out how pervasive attacks are and the several types of threats lurking there. And, by chance, if you fall prey to one such episode, what will be the cost to overcome it, and how do you plan to deal with its consequences?

 Too many questions with no stable solution? Read the article to learn about an ideal way to elude inherent cyber attacks!

What is Cyber Threat Hunting?

Cyber threat hunting is a strategy to search for unknown dangers lurking within a network. It is more competent than other threat detection techniques as it finds evasive skeptical attackers who have managed to break into the system without any traces.

Cyber threats come in various forms, like viruses, Denial of Services (DoS) attacks, data breaches, etc. Threat hunters comb through the company’s network and security data using TTP investigation and a hypothesis-driven approach to locate suspicious or malicious malware or attackers by correlating patterns.

Cyber threat hunting has evolved with time. Traditional threat hunting is a manual process where a security analyst examines and inspects data using their skills and knowledge of the network and systems. The manual process has become more effective and efficient with automation, User and Entity Behavior Analytics (UBEA), and machine learning to caution the security team about possible risks.

For more details, read: 6 Tips to Combat Cybersecurity Threats

Types of Threat Hunting

  1. Structured Hunting

It depends on the IoA (Indicators of Attack) and the cyber attacker’s TTP (Tactics, Techniques, and Procedures). Threat hunters coordinate the attacks contingent on the TTP found on the network. Thus, they can detect the threat in the early stages before the cyber criminals’ attack. Structured hunting uses threat intelligence sources like MITRE ATT&CK to get detailed information on various TTP.  

  1. Unstructured Hunting

The second form of threat hunting begins with IoC (Indicator of Compromise) or a trigger. Threat hunters search for suspicious behavior patterns before and after the IoC or trigger in the network. Historical datasets come in handy in these investigations. Hunters can analyze the earlier attacks similar to the recent ones and discover new types of threats. 

  1. Situational or Entity-driven

Sensitive data and critical computing resources are always at high risk. Situational or entity-driven threat hunting prioritizes and focuses on the high-value entities of a business. It aids in improving threat hunting activities to counterattack cyber threats. Situational hunting identifies the high-priority targets like domain controllers, IT administrators, etc., and helps search for such threats.  

Benefits of Threat Hunting

Cyber threat hunting is becoming everyone’s favorite security program in several enterprises. It ensures situational awareness that earlier and many recent tools fail to reach. A threat hunting framework has many advantages that can facilitate your organization. For instance, 

  • Expose the suspicious bypasses

Threat hunting helps detect malware or suspicious attacks that may have entered your company’s network. Threat intelligence enables the security team to anticipate and identify specific threats. It provides incident responders and analysts with actionable intelligence, i.e., analyzed, contextualized, accurate, reliable, timely, precise, and predictive data.  

  • Gives an accurate insight into the company’s security 

Threat hunting assists in preventing potential attacks or external threats by detecting them in the early stages. Additionally, it is an ideal method to analyze your firm’s security. When IT analysts search for any lingering threat or ATPs (Advanced Persistent Attacks), they get a better picture of the current security state of the organization.  

  • Enhances the speed of threat response

Managing threats timely in a composed manner is not easy. Threat hunting is more of a human process. You can identify abnormal activities in the network that an automated detection method might miss. Locating the threats earlier gives you enough time to take adequate action against them. 

  • Reduces investigation time

Threat hunters utilize historical data to get detailed information about a specific threat or attack. It allows them to understand the scope of a threat by knowing its causes and impacts. Many analysts use an active approach, computer network traffic, to gather information about potential compromises to investigate the after-the-fact incidents.  

  • Helps in staying updated

A diligent threat hunting program requires the latest technology and tools like SIEM (Security Information and Event Management) software to ensure your firm’s security. These modern and practical analytic tools assist in taking measures to avert attacks before they leave your business vulnerable.

Importance of Threat Hunting

It surpasses all the traditional security tools in identifying hidden threats & advanced persistent threats (APTs) by making use of real-time analysis of indicators of compromise (IoCs) and tactics, techniques, and procedures (TTPs) used by threat actors.

It helps the security teams enhance endpoint security and overall security operations by keeping track of malicious activity and potential threats. 

Effective hunting techniques can easily detect and mitigate risks by leveraging cyber threat intelligence and endpoint detection and response (EDR) systems, Which conventional methods can miss out on!

Threat Hunting Challenges

There are several challenges it might face, like handling a sheer volume of data, Staying one step ahead of cybercriminals & the need for skilled personnel to have the ability to analyze and interpret complex patterns.

In addition, it can also prove to be costly, Resource & time-intensive, especially for the organizations having limited budgets or expertise.

Threat Hunting Methodologies (Frameworks)

1.Intelligence-based 

As the name suggests, Hunters use threat intelligence to identify known threats and attack patterns by utilizing TAXII (Trusted Automated exchange of Indicator Information) and structured using STIX (Structured Threat Information Expression). They detect similar threats in the environment, taking into consideration past attacks and indicators.

2. Hypotheses-based 

Here, the hunters create and test their theories based on the known vulnerabilities and attack methods & then test the accuracy of their theories by looking for evidence.

3. Using  indicators of attack (IoA) to investigate

Here, more importance is given to detecting suspicious behaviors or actions that indicate an ongoing attack rather than focusing more on the artifacts left behind by the attackers.

4. Hybrid 

A combination of the above three methodologies making it more of an comprehensive approach capable of adapting themselves to different types of threats.

5. Behavioral-based

Keeping track of unusual or anomalous behaviors that deviates from the normal patterns. This helps the team to focus on the nature of activities rather than specific indicators resulting in the identification of new or unknown threats.

Threat Hunting vs Threat Intelligence vs Threat Modelling

Aspect

Threat Hunting Threat Intelligence Threat Modeling

Objective 

To detect and respond to active threats that may have bypassed existing defenses. To provide actionable insights and forecasts about potential threats and adversarial tactics.

To anticipate and understand potential security risks and design defenses accordingly.

Scope

Focuses on real-time or near-real-time investigation of current system activities and anomalies. Encompasses broad and detailed information about threat actors, malware, and attack trends.

Centers on the specific system or application being analyzed to identify potential weaknesses.

Timing

Continuous and ongoing, often conducted as part of a regular security operations routine. Periodic and ongoing, with updates based on new threat information and trends.

Typically performed at the design phase and updated as the system evolves or new threats are identified.

Outcome

Identification of active threats, indicators of compromise, and potential incidents to mitigate. Enhanced understanding of threats, improved strategic planning, and updated defensive measures.

Enhanced understanding of threats, improved strategic planning, and updated defensive measures.

Audience Security analysts and incident response teams actively work to detect and address threats. Security teams, decision-makers, and strategic planners needing insights on threat landscapes. Security architects, developers, and system designers focused on building secure systems and applications.

Threat Hunting Steps and implementation

Trigger

This is where the activity begins due to suspicious indicators or prompts like alerts or unusual behavior traced by security tools or logs.

Investigation

Here, the analysts will dig deeper to find out whether the determined threat is real or not, that can include thorough examination of the logs, network traffic, and various other sources to understand the scope & impact.

Resolution

After completion of the investigation, the third and last step is to take some action to address the issues & implement security measures to prevent such incidents in the future.

How Does Threat Hunting Work?

An infographic showing threat hunting working process

Threat hunting varies from the traditional threat detection procedures, as the former accompanies a more human aspect. It requires skilled and adept IT professionals to search, monitor, analyze, log, and neutralize potential attacks or threats before they harm your firm. You can follow the typical four-step process to undertake a successful cyber threat hunting program.

  • Developing a hypothesis

The first and foremost step in cyber threat hunting is to draft a threat hypothesis. You can include risk or vulnerability within the firm’s network, attacker’s TTP (Tactics, Techniques, and Procedures), or current threat intelligence. Hypothesis investigation is triggered when a new threat is detected in the organization’s network through the massive heap of crowdsourced attack data. A threat hunter utilizes his knowledge, experience, and problem-solving skills to create a hypothesis. 

  • Starting the investigation

The second step leverages the tactical threat intelligence to well-known catalogs. The threat hunter relies on complex and previous datasets of threat hunting solutions like Security Information and Event Management (SIEM), UBEA, and MDR (Managed Detection and Response). The investigation continues until the hypothesis is valid and confirmed and any activity is detected. 

  • Finding new patterns

Threat hunters deploy prompt responses once they find the anomaly or malicious action. They use several measures like blocking IP addresses, altering network configurations, implementing security patches, disabling users, implementing novel identification processes, updating authorization privileges, etc. When the security team endeavors to resolve these threats, they familiarise themselves with hackers’ tactics, techniques, and procedures. It enables them to mitigate against similar attacks in the future. 

  • Responding, enrichment, and automation

You may prevent or avert a threat whenever it terrorizes your business, but you can never entirely stop the cybercriminals. They are swiftly advancing their attacks using the newest technologies and methods. Therefore, cyber threat hunting must become an everyday practice in your company. You can avail of it hand in hand with automated threat detection methods and your current security processes.   

How to Improve Threat Hunting (Best Practices)

Define Clear Objectives and Hypotheses

Set Goals for you to focus on and measure success.

Leverage Threat Intelligence

Use threat intelligence to search and prioritize threats based on current trends.

Utilize Advanced Analytics and Automation

Use the latest tools and technologies to increase the efficiency of spotting anomalies that you might have missed manually.

Continuously Update and Refine Detection Rules

Keep on revising and updating yourself regarding the new threats and techniques.

Collaborate and Share Knowledge

If possible, try to collaborate and work with your team and the broader security community so that you get a chance to improve your detection and response strategies.

Tools Used for Threat Hunting

– Managed detection and response (MDR)
– SIEM
– Security analytics
– Network Detection and Response (NDR)

Get Proactive Hunting To Gain a Tactical Edge!

Implementing a dynamic approach to data security is the only option to survive in this inconstant cybersecurity environment. Therefore, efficient and meticulous threat hunting platforms and services are essential in organizations. You never know when you will become prey to unethical behavior. And as the saying goes- “better late than never.” If you did not notice it earlier, be attentive now.  

Initiating a cyber threat hunting program can be easy, especially when we are here! At Sattrix, as a quality cyber company, We provide managed threat hunting as-a-service to help you steer clear of the increasing cyber-attacks and threats. Our company is home to excellent threat hunters with plenty of experience tackling cyber adversaries. You can rely on us at any time to ensure your digital protection.  

Multiple characteristics differentiate our services from others. And that is the reason why many organizations trust us with their security. Some of the features of our threat hunting tool are: 

  • It uses network, end-point, user behavior threat analytics, and optimal applications to uncover abnormal and harmful patterns. 
  • Data scientists use pre-built multi-dimensional algorithms to work on various patterns based on the situation. 
  • Our managed threat hunting analytics tool is customer-oriented and customizable per their requirements. 

We do not limit ourselves to assisting organizations in digital security. Additional to deriving benefits from the features, you can also avail of the following advantages by employing our product: 

  • The compelling and easy-to-learn platform enables you to adapt instantly to its working process. 
  • We keep you up-to-date with the activities by providing daily, weekly, or monthly reports per your preference. 
  • Our practical tools provide bi-directional integration with SOAR and SIEM technologies to enhance digital safety. 
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