Create attachment_ics_teams_impersonation.yml#4910
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…icrosoft Teams meeting invite via ICS attachment
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…meeting invite via ICS attachment
Cleaning up some false positives seen in Mode results by tightening up logic
No longer need this negation
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…ms meeting invite via ICS attachment
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…e Microsoft Teams meeting invite via ICS attachment
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Description
Detects inbound messages containing ICS calendar attachments that reference Microsoft Teams meetings but contain links pointing to non-Microsoft domains. The rule specifically filters out legitimate Microsoft-generated calendar files by checking the product ID, then inspects event details for Teams-related references in the location or description fields while flagging any links that do not resolve to known Microsoft domains.
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