M365Pwned: Red Team tooling for Microsoft 365 exploitation via Microsoft Graph API

by Nam Phong · March 5, 2026

M365Pwned

Red Team tooling for Microsoft 365 exploitation via Microsoft Graph API.

Two WinForms GUI tools for enumerating, searching, and exfiltrating data from M365 environments using application-level OAuth tokens — no user interaction required.

Tool	Target	What it does
`MailPwned-GUI.ps1`	Exchange Online / Outlook	Browse mailboxes, search mail, download attachments, send impersonation emails
`SharePwned-GUI.ps1`	SharePoint / OneDrive	Browse sites and drives, search files, preview and download documents

MailPwned-GUI.ps1

WinForms GUI for enumerating, searching, reading, and exfiltrating email from M365/Exchange Online environments.

Permissions

Permission	Required for
`Mail.Read`	Read mail in all mailboxes
`Mail.ReadWrite`	Send/reply/forward/delete (optional)
`User.Read.All`	Enumerate all mailboxes (global search)

Features

Connect using tenant ID + client ID + secret, certificate thumbprint, or raw token
Region selector for sovereign/GCC clouds (EUR, FRA, NAM, GBR, APC, AUS, CAN, IND, JPN)
Load mailbox — browse folder tree, read emails with full HTML rendering
Global search — search across all tenant mailboxes without loading a specific one
Scoped search — search within a loaded mailbox
HTML email preview — full rendering with inline image support (no external requests)
Attachment download — single or bulk
Compose / Reply / Reply-All / Forward — send impersonation emails
Mark read/unread, Delete
Export to CSV
API log panel — real-time color-coded request/response log for debugging

Red Team Use Cases

Credential hunting — search all mailboxes for password, credentials, VPN, secret, etc.
Lateral phishing — read ongoing email threads and send convincing replies impersonating the compromised account
Intelligence gathering — enumerate who is emailing whom, find sensitive projects, HR data, investor communications
Exfiltration — bulk download attachments matching a search query
Persistence discovery — search for MFA codes, password reset emails, token confirmations

SharePwned-GUI.ps1

A CLI version developped by Ethical-Kaizoku can be found here

WinForms GUI for enumerating, browsing, searching, previewing, and downloading files from SharePoint sites and OneDrive drives across the tenant.

Permissions

Permission	Required for
`Sites.Read.All`	Enumerate all SharePoint sites and browse drives
`Files.Read.All`	Read and download files from any drive
`User.Read.All`	Enumerate OneDrive drives for all users (optional)

Features

Connect using tenant ID + client ID + secret, certificate thumbprint, or raw token
Region selector for sovereign/GCC clouds
Enumerate all SharePoint sites across the tenant
Browse drive trees — navigate site document libraries and OneDrive folders
Full-text search — keyword search across all drives (/v1.0/search/query with driveItem entity)
Fallback search — per-drive search when Sites.Read.All is absent
File preview — text extraction for documents, inline preview panel
Download files — single file download with progress
File type icons — extension-aware icon display in the file browser
API log panel — real-time color-coded request/response log for debugging

Red Team Use Cases

Credential hunting — search all SharePoint/OneDrive for password, secret, private key, config files, .env, etc.
Intelligence gathering — enumerate project sites, HR drives, finance document libraries
Exfiltration — download files of interest without leaving a large audit trail
Access mapping — enumerate all sites the compromised app can reach to understand the blast radius

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