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Tagged #azure-active-directory

10 posts

Microsoft 365 AiTM Defense

AiTM phishing, what actually happens, and what breaks each step

The attack in plain English, mapped to ATT&CK, and which defensive control kills which step. Read this before …

Overview / Threat Model 8 min
Microsoft 365 AiTM Defense

Sentinel detection, same session, two sources

When an attacker replays a stolen cookie, the same session ID shows up from two different IPs within …

Detection 5 min
Microsoft 365 AiTM Defense

Sentinel detection, sign-in from a hosting ASN

Real users sign in from residential ISPs and corporate networks. Attackers replaying cookies sign in from rented VPS. …

Detection 6 min
Microsoft 365 AiTM Defense

Sentinel detection, suspicious sign-in plus persistence action

The highest-fidelity detection in this bundle. Catches the chain: dodgy sign-in, then within 2 hours a forwarding rule, …

Detection 6 min
Microsoft 365 AiTM Defense

Conditional Access policies that actually break AiTM

Five Conditional Access policies, deployed in this order, make AiTM economically unviable against your tenant. Plus the rollout …

Mitigation 10 min
Microsoft 365 AiTM Defense

AiTM incident response, what to do when the alert fires at 2am

Step-by-step runbook for when an AiTM detection lights up. Revoke, reset, audit, clean persistence, pivot-hunt. Exact PowerShell included.

Playbook 8 min
Microsoft 365 OAuth Consent Defense

OAuth consent phishing against Microsoft 365, what happens when no password is stolen

The attacker registers an app in their own tenant, tricks a user into clicking Accept, and gets Microsoft-signed …

Overview / Threat Model 12 min
Microsoft 365 OAuth Consent Defense

Five Sentinel detections for OAuth consent attacks (with the KQL inline)

Suspicious consent grant, mass campaign, anomalous SP sign-in, post-consent credential addition, and Graph API mass read. Plus a …

Detection 11 min
Microsoft 365 OAuth Consent Defense

Why Conditional Access will not stop OAuth consent attacks (and what will)

CA gates sign-in. Consent happens after sign-in. Real prevention lives in three Entra ID consent-framework settings most established …

Mitigation 12 min
Microsoft 365 OAuth Consent Defense

Containing an OAuth consent compromise, the four moves you have to make in order

Revoke grants. Disable the SP. Revoke refresh tokens. Tenant-block the AppId. Order matters and most SOCs do it …

Playbook 12 min