Network Monitoring

Analysis of Covert C2 Channels via HTTP/HTTPS: Traffic Encryption Patterns, Anomaly Detection, and Defense Strategies

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Analysis of Covert C2 Channels via HTTP/HTTPS: Traffic Encryption Patterns, Anomaly Detection, and Defense Strategies

Malicious code typically relies on C2 (Command and Control) channels to communicate with attackers, receiving instructions and leaking data. Analyzing the traffic characteristics of C2 channels aids in the detection and defense against malicious code. C2 Channel Traffic Characteristics 1. Communication Patterns： • Periodic Heartbeats：Malicious code may periodically send heartbeat packets to the C2 server … Read more

Qtap: An Open-Source Tool for Monitoring Encrypted Traffic in Linux Systems

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Qtap: An Open-Source Tool for Monitoring Encrypted Traffic in Linux Systems

Qpoint recently released Qtap, an open-source network traffic monitoring tool based on eBPF technology, specifically designed for Linux systems. This tool hooks into TLS/SSL encryption functions, allowing it to capture traffic information before and after data encryption, and presents detailed network data in plaintext, including processes, containers, hosts, users, and protocols. Qtap operates in an … Read more

Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

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Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

Image source: Internet In Linux systems, there are many performance monitoring tools. Below, I will introduce several commonly used command-line tools. 1. top/htop top: Function: Real-time monitoring of processes, displaying information about CPU, memory, load, swap space, etc. Common Shortcuts: Shortcut Description M Sort by memory usage P Sort by CPU usage k Kill a … Read more

mitmproxy: The Powerful Python Library for HTTP Proxying!

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mitmproxy: The Powerful Python Library for HTTP Proxying!

Hello everyone, today I want to introduce a particularly powerful Python library – mitmproxy! It is an intercepting proxy tool that supports HTTP/HTTPS, allowing us to easily monitor and modify network requests. Whether for web scraping or API testing, it can save us a lot of trouble. I have been using it for several years, … Read more

Latest Trends in Automation: Cybersecurity Mindset Required in the Era of Industrial Internet of Things (IIoT)

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Latest Trends in Automation: Cybersecurity Mindset Required in the Era of Industrial Internet of Things (IIoT)

This article is from the September 2016 issue of CONTROL ENGINEERING China, originally titled: Cybersecurity Mindset Required in the Era of IIoT As the application of the Industrial Internet of Things (IIoT) increases, the potential risks of cyber attacks are also on the rise. To prevent these risks from becoming a reality, manufacturing companies need … Read more

PLC Data Analysis: Real-Time Communication Data Analysis and Network Health Visualization!

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PLC Data Analysis: Real-Time Communication Data Analysis and Network Health Visualization!

PLC Data Analysis: Real-Time Communication Data Analysis and Network Health Visualization! Estimated reading time: 5 minutes > Have you encountered these issues? – How to monitor PLC communication data in real-time? – Difficulties in locating network faults? – Inability to visually display system operation status? – Data analysis reports cannot be generated automatically? ⚠️ Industry … Read more

How to Ensure Siemens PLC Security in IoT Environments

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How to Ensure Siemens PLC Security in IoT Environments

How to Ensure Siemens PLC Security in IoT Environments? This Comprehensive Protection Plan Makes Your Smart Factory Secure! Hello everyone, I’m Hanhan. Today, let’s talk about the security protection of Siemens PLC in the industrial IoT environment. With the development of smart manufacturing, PLCs are no longer isolated control devices but are connected to complex … Read more

Top WiFi Analysis Tools to Keep in Your Arsenal

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1) ManageEngine OpManager OpManager is a comprehensive network performance monitor and Wi-Fi analyzer software that provides complete visibility and control over your wireless network. View key metrics and actionable insights that enable you to effectively manage your Wi-Fi environment from its centralized console. Features: Simplified tracking of wireless network performance and availability. Deep insights into … Read more

How to Use Optical Fiber for PROFIBUS Communication

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How to Use Optical Fiber for PROFIBUS Communication

[Introduction] PROFIBUS fieldbus mostly uses RS485 for serial communication, but in some cases, it can also convert the cable into optical fiber for communication, and OLM is such a device. Technical communication, click here to join the group Sales procurement, click here to join the group Project docking, click here to join the group Talent … Read more