sigmaDRL-1.1from SigmaHQ/sigma

Activity from Suspicious IP Addresses

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.

Quality

100

FP risk

—

Forks

Views

ATT&CK techniques

T1573

Rule sourcerules/cloud/m365/threat_detection/microsoft365_from_susp_ip_addresses.yml

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