{"id":"36440e1c-5c22-467a-889b-593e66498472","title":"Malicious IP Address Sign-In Suspicious","description":"Indicates sign-in from a malicious IP address known to be malicious at time of sign-in.","author":"Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'","status":"test","level":"high","date":"2023-09-07","modified":"","tags":["attack.t1090","attack.command-and-control"],"technique_ids":["T1090"],"logsource":{"product":"azure","service":"riskdetection"},"falsepositives":["We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user."],"references":["https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address","https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins"],"source_path":"rules/cloud/azure/identity_protection/azure_identity_protection_malicious_ip_address_suspicious.yml","source_sha256":"5c0cc361b74246035b916f7651727d83bf7d78b237a4967d16a13e3d4742d3c3","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/cloud/azure/identity_protection/azure_identity_protection_malicious_ip_address_suspicious.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Malicious IP Address Sign-In Suspicious\nid: 36440e1c-5c22-467a-889b-593e66498472\nstatus: test\ndescription: Indicates sign-in from a malicious IP address known to be malicious at time of sign-in.\nreferences:\n    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address\n    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins\nauthor: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'\ndate: 2023-09-07\ntags:\n    - attack.t1090\n    - attack.command-and-control\nlogsource:\n    product: azure\n    service: riskdetection\ndetection:\n    selection:\n        riskEventType: 'suspiciousIPAddress'\n    condition: selection\nfalsepositives:\n    - We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1090","id":"T1090","name":"Proxy","page":"techniques/enterprise/T1090/"}],"data_path":"data/detection-rules/36440e1c-5c22-467a-889b-593e66498472.json","kind":"sigma"}