A new Microsoft 365 application was installed

microsoft-365

Classification:

attack

Tactic:

TA0003-persistence

이 페이지는 아직 한국어로 제공되지 않으며 번역 작업 중입니다. 번역에 관한 질문이나 의견이 있으시면 언제든지 저희에게 연락해 주십시오.

Goal

Detect when a new Microsoft 365 app is installed as a means of establishing persistence.

Strategy

Monitor Microsoft 365 audit logs to look for events with an @evt.name value of Add application. and event @evt.outcome of Success.

Triage and response

  1. Determine if the user {{@usr.email}} intended to install {{@ObjectId}}.
  2. If {{@usr.email}} is not responsible for installing {{@ObjectId}}, investigate {{@usr.email}} for anomalous activity. If necessary, initiate your company’s incident response (IR) process.