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EmiliePhishing's avatar
EmiliePhishing
Copper Contributor
Mar 03, 2025

Attack Simulation - Copy to SOC Mailbox

Hello Community! 

Currently we are using Knowbe4 to simulate phishing campaigns. We are evaluating the Microsoft E5 Attack simulation. One problem that I cannot figure out with the MSFT version is as follows: 

I have the SOC mailbox setup to send phishing emails to a shared mailbox for triage (I have it setup to not forward to Microsoft) 

When I create an attack simulation, and folks report the phish, I still get a copy of it in the phishing mailbox (I send these out monthly to thousands of people so I would prefer not to have a copy) 

I have looked at the email headers, and there is nothing in them that I can create a custom rule for. 

Has anyone been able to filter out attack simulation emails, while still receiving normal user reported emails in the SOC mailbox? 

Any advice appreciated. 

Em

  • duliprb's avatar
    duliprb
    Brass Contributor

    I couldn't deep dive though, check headers in email persists like below.

    X-MS-Exchange-Organization-SCL , X-Microsoft-Antispam

  • Joe Stocker's avatar
    Joe Stocker
    Bronze Contributor

    You could insert a special character in the attack simulation into the body of the email so that your custom rule could then fire. https://learn.microsoft.com/en-us/defender-office-365/attack-simulation-training-payloads#modify-payloads

    • EmiliePhishing's avatar
      EmiliePhishing
      Copper Contributor

      Hi Joe, 

      I think that's what I'm going to have to end up doing, I was trying to avoid editing the hundreds of payloads :) 

      Thanks for your reply, 

      Em

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