feat: Support Microsoft Graph API JSON Format #115
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Test ruletitle: TEST
id: 7d9680d7-60d9-4a65-9884-20549fa1cb0d
status: test
description:
references:
author: Yamato
date: 2025-11-30
logsource:
product: azure
service: activitylogs
detection:
selection:
operationName.value|contains: publicIPAddresses/delete
condition: selection
falsepositives:
level: informationalTest log(Microsoft Extractor Suite Log format)[
{
"authorization": {
"action": "Microsoft.Resources/subscriptions/resourceGroups/delete",
"scope": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourceGroups/wela"
},
"caller": "[email protected]",
"channels": "Operation",
"claims": {
"aud": "https://management.core.windows.net/",
"iss": "https://sts.windows.net/fe5e9374-1f2c-4128-a5e2-033efa641646/",
"iat": "1764466056",
"nbf": "1764466056",
"exp": "1764470656",
"http://schemas.microsoft.com/claims/authnclassreference": "1",
"acrs": "p1",
"aio": "AfQAC/8aAAAAf1JwLyT3LYiw5AuvrrllwxPYIJcWAanrzZDn8o51q3rQKz9QlW+QlwIZ3etwkBP+TSTZ7Vj89JC8eQbeckLTn1vwbbA6rzTIFq7i0KZED9XW7khhvUOudmVoYLKIeJZ+7Rv8FcY6Zf91a5bdEWS7secTsIVo8RTfpoSzBKWFkBeQpu8wGDxRq49XAXSCXRAcB1TIjcoq4eLAVJQjW+kxGrMe0x74MSOZjUOtkR+kZkE1jI8s3s+8yeaMlI/32nxS8dmOKzPwM7rlFnT52Sf6aaNTHDNw3IPuxOAemtYylH7mOvdmfcdjnlBEeTJ2lzT7",
"altsecid": "1:live.com:00037FFE1A7CA7BC",
"http://schemas.microsoft.com/claims/authnmethodsreferences": "pwd,mfa",
"appid": "c44b4083-3bb0-49c1-b47d-974e53cbdf3c",
"appidacr": "0",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress": "[email protected]",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname": "大和",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname": "朱雀",
"groups": "66c84c0c-6c25-470b-9330-5113abab1ecf",
"http://schemas.microsoft.com/identity/claims/identityprovider": "live.com",
"idtyp": "user",
"ipaddr": "240d:1a:7fe:a000:e4f5:37e6:6cfd:adbd",
"name": "大和朱雀",
"http://schemas.microsoft.com/identity/claims/objectidentifier": "97ac2078-7b11-4982-9b43-5e6f407d066c",
"puid": "1003200047D500B0",
"rh": "1.AVUAdJNe_iwfKEGl4gM--mQWRkZIf3kAutdPukPawfj2MBO_AKxVAA.",
"http://schemas.microsoft.com/identity/claims/scope": "user_impersonation",
"sid": "00a94039-740c-0a35-217e-b7906bee94c6",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier": "CHDqallWk9cFDPMYuPhZ2NJd95t1QR4QUzkOAuO6HS4",
"http://schemas.microsoft.com/identity/claims/tenantid": "fe5e9374-1f2c-4128-a5e2-033efa641646",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name": "live.com#[email protected]",
"uti": "BYMvvd9bGkqlm0tPNk_GAA",
"ver": "1.0",
"wids": "62e90394-69f5-4237-9190-012177145e10",
"xms_act_fct": "5 3",
"xms_edov": "true",
"xms_ftd": "ro9HGrmLNinwnU5EUm47yT6L3YfvJimHTBw85VKMbXkBa29yZWFzb3V0aC1kc21z",
"xms_idrel": "1 24",
"xms_sub_fct": "3 4",
"xms_tcdt": "1558360955"
},
"correlationId": "af67db90-ea0f-4ff5-8da7-6570de228eb2",
"description": "",
"eventDataId": "5df3b668-cc09-44fe-906c-e54bf315911b",
"eventName": {
"value": "EndRequest",
"localizedValue": "End request"
},
"category": {
"value": "Administrative",
"localizedValue": "Administrative"
},
"id": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourcegroups/wela/providers/Microsoft.Network/publicIPAddresses/sakurai10-ip/events/5df3b668-cc09-44fe-906c-e54bf315911b/ticks/639000639064650448",
"level": "Informational",
"resourceGroupName": "wela",
"resourceProviderName": {
"value": "Microsoft.Network",
"localizedValue": "Microsoft.Network"
},
"resourceId": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourcegroups/wela/providers/Microsoft.Network/publicIPAddresses/sakurai10-ip",
"resourceType": {
"value": "Microsoft.Resources/subscriptions/resourceGroups",
"localizedValue": "Microsoft.Resources/subscriptions/resourceGroups"
},
"operationId": "90f4018b-2d97-43cb-878e-d7932b08026d",
"operationName": {
"value": "Microsoft.Network/publicIPAddresses/delete",
"localizedValue": "Delete Public Ip Address"
},
"properties": {
"eventCategory": "Administrative",
"entity": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourcegroups/wela/providers/Microsoft.Network/publicIPAddresses/sakurai10-ip",
"message": "Microsoft.Network/publicIPAddresses/delete",
"hierarchy": "fe5e9374-1f2c-4128-a5e2-033efa641646/5d22beda-5051-4d08-89eb-a56f372e8890"
},
"status": {
"value": "Succeeded",
"localizedValue": "Succeeded"
},
"subStatus": {
"value": "",
"localizedValue": ""
},
"eventTimestamp": "2025-11-30T01:45:06.4650448Z",
"submissionTimestamp": "2025-11-30T01:47:13Z",
"subscriptionId": "5d22beda-5051-4d08-89eb-a56f372e8890",
"tenantId": "fe5e9374-1f2c-4128-a5e2-033efa641646"
},
{
"authorization": {
"action": "Microsoft.Resources/subscriptions/resourceGroups/delete",
"scope": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourceGroups/wela"
},
"caller": "[email protected]",
"channels": "Operation",
"claims": {
"aud": "https://management.core.windows.net/",
"iss": "https://sts.windows.net/fe5e9374-1f2c-4128-a5e2-033efa641646/",
"iat": "1764466056",
"nbf": "1764466056",
"exp": "1764470656",
"http://schemas.microsoft.com/claims/authnclassreference": "1",
"acrs": "p1",
"aio": "AfQAC/8aAAAAf1JwLyT3LYiw5AuvrrllwxPYIJcWAanrzZDn8o51q3rQKz9QlW+QlwIZ3etwkBP+TSTZ7Vj89JC8eQbeckLTn1vwbbA6rzTIFq7i0KZED9XW7khhvUOudmVoYLKIeJZ+7Rv8FcY6Zf91a5bdEWS7secTsIVo8RTfpoSzBKWFkBeQpu8wGDxRq49XAXSCXRAcB1TIjcoq4eLAVJQjW+kxGrMe0x74MSOZjUOtkR+kZkE1jI8s3s+8yeaMlI/32nxS8dmOKzPwM7rlFnT52Sf6aaNTHDNw3IPuxOAemtYylH7mOvdmfcdjnlBEeTJ2lzT7",
"altsecid": "1:live.com:00037FFE1A7CA7BC",
"http://schemas.microsoft.com/claims/authnmethodsreferences": "pwd,mfa",
"appid": "c44b4083-3bb0-49c1-b47d-974e53cbdf3c",
"appidacr": "0",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress": "[email protected]",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname": "大和",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname": "朱雀",
"groups": "66c84c0c-6c25-470b-9330-5113abab1ecf",
"http://schemas.microsoft.com/identity/claims/identityprovider": "live.com",
"idtyp": "user",
"ipaddr": "240d:1a:7fe:a000:e4f5:37e6:6cfd:adbd",
"name": "大和朱雀",
"http://schemas.microsoft.com/identity/claims/objectidentifier": "97ac2078-7b11-4982-9b43-5e6f407d066c",
"puid": "1003200047D500B0",
"rh": "1.AVUAdJNe_iwfKEGl4gM--mQWRkZIf3kAutdPukPawfj2MBO_AKxVAA.",
"http://schemas.microsoft.com/identity/claims/scope": "user_impersonation",
"sid": "00a94039-740c-0a35-217e-b7906bee94c6",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier": "CHDqallWk9cFDPMYuPhZ2NJd95t1QR4QUzkOAuO6HS4",
"http://schemas.microsoft.com/identity/claims/tenantid": "fe5e9374-1f2c-4128-a5e2-033efa641646",
"http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name": "live.com#[email protected]",
"uti": "BYMvvd9bGkqlm0tPNk_GAA",
"ver": "1.0",
"wids": "62e90394-69f5-4237-9190-012177145e10",
"xms_act_fct": "5 3",
"xms_edov": "true",
"xms_ftd": "ro9HGrmLNinwnU5EUm47yT6L3YfvJimHTBw85VKMbXkBa29yZWFzb3V0aC1kc21z",
"xms_idrel": "1 24",
"xms_sub_fct": "3 4",
"xms_tcdt": "1558360955"
},
"correlationId": "af67db90-ea0f-4ff5-8da7-6570de228eb2",
"description": "",
"eventDataId": "8a2bfc79-5cfa-4150-a2fc-1279ac34b94a",
"eventName": {
"value": "EndRequest",
"localizedValue": "End request"
},
"category": {
"value": "Administrative",
"localizedValue": "Administrative"
},
"id": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourcegroups/wela/providers/Microsoft.Network/virtualNetworks/vnet-japaneast/events/8a2bfc79-5cfa-4150-a2fc-1279ac34b94a/ticks/639000639016595788",
"level": "Informational",
"resourceGroupName": "wela",
"resourceProviderName": {
"value": "Microsoft.Network",
"localizedValue": "Microsoft.Network"
},
"resourceId": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourcegroups/wela/providers/Microsoft.Network/virtualNetworks/vnet-japaneast",
"resourceType": {
"value": "Microsoft.Resources/subscriptions/resourceGroups",
"localizedValue": "Microsoft.Resources/subscriptions/resourceGroups"
},
"operationId": "ae920602-ccb3-4ee3-acac-517413d6c1bc",
"operationName": {
"value": "Microsoft.Network/virtualNetworks/delete",
"localizedValue": "Delete Virtual Network"
},
"properties": {
"eventCategory": "Administrative",
"entity": "/subscriptions/5d22beda-5051-4d08-89eb-a56f372e8890/resourcegroups/wela/providers/Microsoft.Network/virtualNetworks/vnet-japaneast",
"message": "Microsoft.Network/virtualNetworks/delete",
"hierarchy": "fe5e9374-1f2c-4128-a5e2-033efa641646/5d22beda-5051-4d08-89eb-a56f372e8890"
},
"status": {
"value": "Succeeded",
"localizedValue": "Succeeded"
},
"subStatus": {
"value": "",
"localizedValue": ""
},
"eventTimestamp": "2025-11-30T01:45:01.6595788Z",
"submissionTimestamp": "2025-11-30T01:47:02Z",
"subscriptionId": "5d22beda-5051-4d08-89eb-a56f372e8890",
"tenantId": "fe5e9374-1f2c-4128-a5e2-033efa641646"
}
] |
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Pull request overview
This PR adds support for Microsoft Graph API JSON format for Azure logs. The Graph API uses a different JSON structure than traditional Azure logs, with events wrapped in a { "value": [...] } object and using different field names (e.g., eventTimestamp instead of time, nested fields like category.value instead of flat category).
Key Changes:
- Added multi-key field support using pipe-separated field names to handle different Azure log formats
- Enhanced JSON parsing to support Graph API format with
valuearray wrapper - Added BOM handling for JSON files with UTF-8 BOM markers
- Removed unused
krapslogdependency
Reviewed changes
Copilot reviewed 6 out of 7 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| src/option/timefiler.rs | Added multi-key timestamp field support and test cases for different timestamp formats |
| src/core/timeline_writer.rs | Enhanced field extraction to support pipe-separated field names and updated default timestamp key |
| src/core/scan.rs | Added Graph API JSON format parsing with value wrapper and BOM handling |
| src/core/log_source.rs | Extended service matching to check both nested and flat category fields |
| config/azure_profile.yaml | Updated field mappings to support both Graph API and traditional formats |
| Cargo.toml, Cargo.lock | Removed unused krapslog dependency |
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|
YamatoSecurity
approved these changes
Dec 1, 2025
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YamatoSecurity
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@fukusuket LGTM! Thanks so much!!
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What Changed
Evidence
Integration-Test
I’d appreciate it if you could check it when you have time🙏