SSH Tunnelling to Punch Through Corporate Firewalls – Updated take on one of the oldest LOLBINs
This write-up discusses advanced SSH tunneling techniques for network penetration testing and red team engagements. It focuses on using the native OpenSSH client in Windows 10/11 to create reverse dynamic SOCKS proxies, allowing testers to access internal networks and run offensive tools remotely. The guide covers: 1. Using the -R flag for reverse dynamic proxies 2. Techniques to bypass corporate firewalls, including using Azure domains and ASN IP ranges 3. Methods for payload delivery and data exfiltration using SCP 4. OpSec-safe PowerShell script execution through SSH The write-up also includes recommendations for defenders, such as removing the SSH client from non-technical staff endpoints, securing corporate firewall settings, and monitoring for SSH binary execution.
FEATURES
ALTERNATIVES
A pocket reference guide providing various options for navigating and pivoting through different environments and situations.
SecTemplates offers free, comprehensive security program templates and resources for infosec professionals and startups lacking dedicated security teams.
A comprehensive cheat sheet for Windows and Linux terminals and command lines, covering essential commands and syntax for various tasks.
A comprehensive guide to hardening OpenLDAP on Linux using AppArmor and systemd, providing a defense in depth approach to securing LDAP deployments.
A comprehensive guide for computer security incident handling, providing guidelines for establishing incident response capabilities and handling incidents efficiently and effectively.
A comprehensive cheat sheet for using JtR (John the Ripper), a password cracking tool.
A comprehensive guide to securing Industrial Control Systems (ICS) from cyber threats, published by NIST.
A behavior-based malware detection system for Android platforms that uses crowdsourcing to detect anomalies and malware in applications.
PINNED
InfoSecHired
An AI-powered career platform that automates the creation of cybersecurity job application materials and provides company-specific insights for job seekers.
Fabric Platform by BlackStork
Fabric Platform is a cybersecurity reporting solution that automates and standardizes report generation, offering a private-cloud platform, open-source tools, and community-supported templates.
Mandos Brief Newsletter
Stay ahead in cybersecurity. Get the week's top cybersecurity news and insights in 8 minutes or less.
System Two Security
An AI-powered platform that automates threat hunting and analysis by processing cyber threat intelligence and generating customized hunt packages for SOC teams.
Aikido Security
Aikido is an all-in-one security platform that combines multiple security scanning and management functions for cloud-native applications and infrastructure.
Permiso
Permiso is an Identity Threat Detection and Response platform that provides comprehensive visibility and protection for identities across multiple cloud environments.
Wiz
Wiz Cloud Security Platform is a cloud-native security platform that enables security, dev, and devops to work together in a self-service model, detecting and preventing cloud security threats in real-time.
Adversa AI
Adversa AI is a cybersecurity company that provides solutions for securing and hardening machine learning, artificial intelligence, and large language models against adversarial attacks, privacy issues, and safety incidents across various industries.