Blue Team In Cyber Security

BLUE TEAM IN CYBERSECURITY

A Cybersecurity Blue Team of experts defends and safeguards a Company’s Security from Cyberattacks. Additionally, they continually assess the security posture of a company to identify methods to strengthen its defenses. One’s duties as a blue team member will include acquiring threat intelligence, resolving incidents, and automating security procedures.

Purpose of a Blue Team 

 

A Blue Team Analyst locates holes within an organization using the knowledge they currently have. Securing the Business’s assets and running Vulnerability Scans help to achieve this. They also do out system audits and DNS audits for the company. Any unexpected behaviors are investigated right away after the requested data is retrieved.

The Blue Team not only implements security regulations but also instructs staff members on how to be secure both within and outside the company. Security experts provide organizations advice on the investments and procedures they should put in place to defend themselves against assaults. In the event of cyberattacks or breaches, they also safeguard and restore the company’s security.

Blue Team Approaches (Methodology)

The cyber security blue team also employs a method to get ready for Red Team Attacks.

 

• Detecting and monitoring live intrusions and security events using SIEM Platforms
• Analyzing logs and reviewing their content
• Analyzing traffic and data flows
• Keeping track of Real-Time Alarms
• Prioritizing appropriate actions requires gathering and analyzing the most recent threat intelligence.

There are a few more drills for the cyber security blue team in addition to these:

• Making sure that All security software is configured, watched over, and evaluated
• As part of perimeter security, a firewall, antivirus program, and anti-malware program should all be properly configured and maintained.
• The blue team also Maintains separate access to all areas of the Network by utilizing the security method known as micro segmentation.
• Least-privilege access should be applied when there is a breach in the network, meaning that each user or device should have access to the least-privilege access possible.

The Blue Team’s Role in Cybersecurity

For the benefit of other teams, an internal or external Blue Team manages security components.

1. Reaction to incidents

Reactive measures are being identified and put into place in reaction to security issues.

2. Threat hunting and threat detection

Active threat search with SIEMs or EDRs and monitoring of indicators of compromise (IOCs)

3. Forensic investigation

They are looking into and assessing the severity and consequences of a security issue.

4. Early danger detection

The team will use decoys in addition to analyzing CVEs and 0-day vulnerabilities (deception).

5. Bastion host

According to the Bastion guidance, create and identify computer security controls.

 

Blue Team’s benefits for cyber security

Various advantages for preserving cyber security are provided by the blue team activities, including:

 

• Network security has improved, and breakout times have decreased.
• Staff members within the organization are now more cognizant of cybersecurity risks.
• The creation and use of reliable cybersecurity safeguards

Blue Team Tools.

• Intrusion Detection and Prevention

To find and stop assaults from outside the network, intrusion detection and prevention techniques are           utilized. One of the useful toolkits for blue teams that enables them to determine which assets are being targeted and which possible targets is this one.

• Packet Analysis

 

One of the most popular packet analysis tools, Wireshark, enables blue team members to examine the Threat.

• Log and packet aggregation

 

Web traffic logs are organized by an attack analysis tool using log and packet aggregation. By simulating the attack chains of events that result in Breaches and Assaults, Log Aggregation helps Blue Teams understand how Cyberattacks are conducted.

• Active Endpoint Detection and Response (ActiveEDR)

 

Everything on a device is tracked and contextualized by ActiveEDR to address EDR issues. Attackers may be recognized in real-time using ActiveEDR, automatic responses can be carried out, and threat hunting is simplified with just one indicator of compromise.

 

• Honeypots

Honeypots help to keep the network secure while also educating the blue team about new threats and strategies. In essence, honeypots imitate primary targets to serve as decoy assets.

Sandboxing

In that they guard against and examine security concerns, sandboxes are comparable to honeypots. By running them in an isolated environment, installing malware, and executing potentially harmful code, it is a method that enables Blue Teams and Security Researchers to evaluate programs.

• Kippo

Python-based Kippo The medium-interaction SSH (Secure Socket Shel) capabilities of the Kippo honeypot are well known. This program detects and logs brute force attacks as well as the shell history of an attacker.

 

Blog By: Priyanka Rana