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 comprehensive cheat sheet for Windows and Linux terminals and command lines, covering essential commands and syntax for various tasks.
A comprehensive PowerShell cheat sheet covering various tasks and techniques for file management, process management, network operations, and system administration.
A comprehensive analysis of AWS IAM Access Analyzer, evaluating its capabilities, limitations, and effectiveness in identifying publicly exposed AWS resources.
APFS is a proprietary file system developed by Apple for macOS, offering improved performance, security, and reliability.
A behavior-based malware detection system for Android platforms that uses crowdsourcing to detect anomalies and malware in applications.
A quick reference guide for the VI editor, covering commands and modes.
A structured approach to managing and responding to suspected security events or incidents.
PINNED

InfoSecHired
An AI-powered career platform that automates the creation of cybersecurity job application materials and provides company-specific insights for job seekers.

Mandos Brief Newsletter
A weekly newsletter providing cybersecurity leadership insights, industry updates, and strategic guidance for security professionals advancing to management positions.

Checkmarx SCA
A software composition analysis tool that identifies vulnerabilities, malicious code, and license risks in open source dependencies throughout the software development lifecycle.

Check Point CloudGuard WAF
A cloud-native web application and API security solution that uses contextual AI to protect against known and zero-day threats without signature-based detection.

Orca Security
A cloud-native application protection platform that provides agentless security monitoring, vulnerability management, and compliance capabilities across multi-cloud environments.

DryRun
A GitHub application that performs automated security code reviews by analyzing contextual security aspects of code changes during pull requests.

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.