Activity from Suspicious IP Addresses

testmedium
log source: m365 · threat_detectionauthor Austin Songer @austinsongerdate 2021-08-23
01

description

What this is, in brief.

Detects when a Microsoft Cloud App Security reported users were active from an IP address identified as risky by Microsoft Threat Intelligence. These IP addresses are involved in malicious activities, such as Botnet C&C, and may indicate compromised account.

02

tags

attack.command-and-controlattack.t1573
03

rule source (YAML)

title: Activity from Suspicious IP Addresses
id: a3501e8e-af9e-43c6-8cd6-9360bdaae498
status: test
description: |
  Detects when a Microsoft Cloud App Security reported users were active from an IP address identified as risky by Microsoft Threat Intelligence.
  These IP addresses are involved in malicious activities, such as Botnet C&C, and may indicate compromised account.
references:
    - https://learn.microsoft.com/en-us/defender-cloud-apps/anomaly-detection-policy
    - https://learn.microsoft.com/en-us/defender-cloud-apps/policy-template-reference
author: Austin Songer @austinsonger
date: 2021-08-23
modified: 2022-10-09
tags:
    - attack.command-and-control
    - attack.t1573
logsource:
    service: threat_detection
    product: m365
detection:
    selection:
        eventSource: SecurityComplianceCenter
        eventName: 'Activity from suspicious IP addresses'
        status: success
    condition: selection
falsepositives:
    - Unknown
level: medium
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.