Ruler
A tool for interacting with Exchange servers remotely and exploiting client-side Outlook features.
Ruler
A tool for interacting with Exchange servers remotely and exploiting client-side Outlook features.
Quick facts
Ruler is a Penetration Testing product. Pricing is free.
- Category
- Offensive Security
- Subcategory
- Penetration Testing · What is Penetration Testing?
- Pricing model
- Free
- Alternatives
- ZeroThreat.ai, Vulneri Pentest, Tenzai
- Website
- github.com
- Data verified
- Sep 2026
Ruler Description
Ruler is a tool that allows remote interaction with Exchange servers through MAPI/HTTP or RPC/HTTP protocols, aiming to exploit client-side Outlook features to gain remote shell access. It can enumerate valid users, create malicious mail rules, dump the Global Address List, execute VBScript through forms, and interact with the Outlook Home Page. Ruler uses Autodiscover service to discover relevant information and is available for Linux, OSX, and Windows.
Ruler FAQ
Common questions about Ruler including features, pricing, alternatives, and user reviews.
Ruler is A tool for interacting with Exchange servers remotely and exploiting client-side Outlook features. It is a Offensive Security solution designed to help security teams with Vulnerability Exploitation, Microsoft 365.
Ruler is built for security teams handling Vulnerability Exploitation, Microsoft 365. Teams typically adopt Ruler when they need to offensive security capabilities integrated into their existing stack. Explore similar tools at https://cybersectools.com/alternatives/ruler
Ruler is a free Offensive Security tool. This makes it accessible for organizations of all sizes, from startups to enterprises. Visit https://github.com/sensepost/ruler/ for download and installation instructions.
Popular alternatives to Ruler include:
1.ZeroThreat.ai - Automated pentesting platform for web apps and APIs with AI-driven exploit validation. (Commercial)
2.Vulneri Pentest - Continuous pentest platform simulating real attacks across web, cloud, and network assets. (Commercial)
3.Tenzai - Agentic AI platform for continuous, autonomous penetration testing of enterprise apps. (Commercial)
4.Webray RayBox - Automated penetration testing appliance covering recon-to-exploitation attack chain. (Commercial)
5.KinoSec Zeus - Autonomous AI black-box pentesting platform with exploit chaining and PoC generation. (Commercial)
Compare all Ruler alternatives at https://cybersectools.com/alternatives/ruler
Ruler is for security teams and organizations that need Vulnerability Exploitation, Microsoft 365. It's particularly suitable for small to medium-sized teams looking for cost-effective solutions. Other Offensive Security tools can be found at https://cybersectools.com/categories/offensive-security-testing
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