Bharath Narayanasamy

MCSE, CCSA, eJPTv2, Security+, CCNA, Azure Certified

BIG-IP LTM: Deployment Models

by
This entry is part 2 of 3 in the series F5 Local Traffic Manager (LTM)

Views: 37Deployment Methods One-Arm Deployment In one-arm deployment, the load balancer is not physically in line of the traffic, which means that the load balancer’s ingress and egress traffic goes through the same network interface. Traffic from the client through the load balancer is network address translated (NAT) with the load balancer as its source … Read more

Threat Intelligence for SOC

by
This entry is part 2 of 21 in the series Threat Detection Engineering

Views: 46Threat Intelligence is the analysis of data and information using tools and techniques to generate meaningful patterns to mitigate against potential risks associated with existing or emerging threats targeting organisations, industries, sectors or governments. There are different classifications of Threat Intelligence, and the primary types of it are: Threat Intelligence Producers Threat Intelligence Producers … Read more

Threat Detection: Detecting a Webserver Attack

by
This entry is part 1 of 21 in the series Threat Detection Engineering

Views: 47LAB Setup Let’s use the DIWA ( Deliberately Insecure Web Application) vulnerable created by Tim Steufmehl , to setup the victim machine. Prepare a Linux machiine with Docker installed. Follow the these instructions to install Docker on Ubuntu. With the above steps, the DIWA app should be UP and running on the Linux VM. Let’s … Read more

Detection Engineering vs Threat Hunting

by
This entry is part 3 of 21 in the series Threat Detection Engineering

Views: 23DETECTION ENGINEERING: REINFORCING THE KNOWN Threat detection is the process of identifying threats in an organization that is actively trying to attack the endpoints, networks, devices and systems. Unlike threat hunting, a threat detection is a reactive approach: threat mitigation mechanisms activate only when the organization’s security system receives alerts on potential security breaches. … Read more

Linux System Hardening

by

Views: 10Create a GRUB password PBKDF2 stands for Password-Based Key Derivation Function 2. It is important to note that adding a password for GRUB is not available for systems deployed using cloud service providers (such as our Linux VM); a GRUB password does not make sense as you don’t have access to the physical terminal. Encryption There … Read more

Yara 101

by
This entry is part 4 of 21 in the series Threat Detection Engineering

Views: 15YARA is a powerful pattern-matching tool and rule format used for identifying and classifying files based on specific patterns, characteristics, or content. SOC analysts commonly use YARA rules to detect and classify malware samples, suspicious files, or indicators of compromise (IOCs). Yara is an essential tool used by SOC analysts to enhance their threat detection … Read more

NetworkMiner

by

Views: 36NetworkMiner is an open source network forensics tool that extracts artifacts, such as files, images, emails and passwords, from captured network traffic in PCAP files. NetworkMiner can also be used to capture live network traffic by sniffing a network interface. It’s a popular tool among incident response teams as well as law enforcement.  Detailed information about … Read more

TCPView

by

Views: 16TCPView is a Windows program that will show you detailed listings of all TCP and UDP endpoints on your system, including the local and remote addresses and state of TCP connections. TCPView also reports the name of the process that owns the endpoint. TCPView provides a more informative and conveniently presented subset of the … Read more