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[M365 Defender] Improve ECS mapping and fix incorrect or missing fields #7522

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Merged
P1llus merged 14 commits into from
Sep 6, 2023
Merged

[M365 Defender] Improve ECS mapping and fix incorrect or missing fields #7522

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5bb8e5e
draft commit
P1llus Aug 24, 2023
7604f8a
adding testdata
P1llus Aug 24, 2023
e01b50d
fixing category if condition logic to use contains
P1llus Aug 24, 2023
f9b8f35
Moves all the processors around and groups them by logic and usecase,…
P1llus Aug 24, 2023
7a38dd5
Add rename processors for previously removed convert processors that …
P1llus Aug 24, 2023
bf3dd3f
group processors in alert pipeline together, similar to device pipeline
P1llus Aug 24, 2023
cc55bd0
group app_and_identify processors together to fit the format of the o…
P1llus Aug 24, 2023
2b38684
updating ecs.yml and fields.yml definitions
P1llus Aug 24, 2023
4777607
Update conditions for number to boolean conditions to prevent casting…
P1llus Aug 25, 2023
698ee31
stash dashboard changes
P1llus Aug 29, 2023
16d91a8
adding all dashboards and new screenshots
P1llus Sep 4, 2023
b69bdad
added fixes to pipelines from PR comments
P1llus Sep 4, 2023
a12fd82
added major version bump
P1llus Sep 4, 2023
5b6da79
adding PR comments and updating generated test files
P1llus Sep 5, 2023
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5 changes: 5 additions & 0 deletions packages/m365_defender/changelog.yml
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Original file line number Diff line number Diff line change
@@ -1,4 +1,9 @@
# newer versions go on top
- version: "2.0.0"
changes:
- description: Major improvements in ECS field coverage and additional field mappings.
type: enhancement
link: https://github.com/elastic/integrations/pull/7255
- version: "1.17.1"
changes:
- description: Fix fingerprint processor on `log` datastream to avoid document conflicts
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54 changes: 23 additions & 31 deletions packages/m365_defender/data_stream/event/_dev/test/pipeline/test-alert.log-expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -10,15 +10,22 @@
"file"
],
"id": "da638034938542195558_2006612345",
"kind": [
"alert"
],
"kind": "alert",
"original": "{\"Tenant\":\"DefaultTenant\",\"category\":\"AdvancedHunting-AlertEvidence\",\"operationName\":\"Publish\",\"properties\":{\"AccountDomain\":\"a-domain\",\"AccountName\":\"account name\",\"AccountObjectId\":\"S-1-5-2\",\"AccountSid\":\"S-1-5-1\",\"AccountUpn\":null,\"AdditionalFields\":\"{\\\"$id\\\":\\\"1\\\",\\\"ProcessId\\\":\\\"1960\\\"}\",\"AlertId\":\"da638034938542195558_2006612345\",\"Application\":null,\"ApplicationId\":null,\"DeviceId\":\"08f8d2adebd88b1b7e509fcca55a665831912345\",\"DeviceName\":\"TestMachine1\",\"EmailSubject\":null,\"EntityType\":\"File\",\"EvidenceDirection\":null,\"EvidenceRole\":\"Related\",\"FileName\":\"ai_alternate_stream_s7f_48qa.txt:ai-8xNfG12345\",\"FileSize\":27436,\"FolderPath\":\"C:\\\\Windows\\\\Temp\",\"LocalIP\":\"81.2.69.192\",\"MachineGroup\":null,\"NetworkMessageId\":null,\"OAuthApplicationId\":null,\"ProcessCommandLine\":null,\"RegistryKey\":null,\"RegistryValueData\":null,\"RegistryValueName\":null,\"RemoteIP\":null,\"RemoteUrl\":null,\"SHA1\":\"eff06d27e192d18afb00237ca00c4e5dd4012345\",\"SHA256\":\"bd914e55d55a31b7bdc95fa617f9925ff3eba703afd7a8b70cea18dcae512345\",\"ServiceSource\":\"Microsoft Defender for Endpoint\",\"ThreatFamily\":null,\"Timestamp\":\"2022-11-08T08:41:56.5950497Z\"},\"tenantId\":\"12345af3-bc0e-4f36-b08e-27759e912345\",\"time\":\"2022-11-08T08:44:14.9047460Z\"}",
"provider": "Microsoft Defender for Endpoint",
"type": [
"info"
]
},
"file": {
"directory": "C:\\Windows\\Temp",
"hash": {
"sha1": "eff06d27e192d18afb00237ca00c4e5dd4012345",
"sha256": "bd914e55d55a31b7bdc95fa617f9925ff3eba703afd7a8b70cea18dcae512345"
},
"name": "ai_alternate_stream_s7f_48qa.txt:ai-8xNfG12345",
"size": 27436
},
"host": {
"id": "08f8d2adebd88b1b7e509fcca55a665831912345",
"name": "testmachine1"
Expand Down Expand Up @@ -69,43 +76,32 @@
},
"related": {
"hash": [
"eff06d27e192d18afb00237ca00c4e5dd4012345",
"bd914e55d55a31b7bdc95fa617f9925ff3eba703afd7a8b70cea18dcae512345"
"bd914e55d55a31b7bdc95fa617f9925ff3eba703afd7a8b70cea18dcae512345",
"eff06d27e192d18afb00237ca00c4e5dd4012345"
],
"hosts": [
"TestMachine1",
"08f8d2adebd88b1b7e509fcca55a665831912345",
"a-domain"
"testmachine1",
"a-domain",
"08f8d2adebd88b1b7e509fcca55a665831912345"
],
"ip": [
"81.2.69.192"
],
"user": [
"account name",
"S-1-5-2"
"S-1-5-2",
"account name"
]
},
"source": {
"ip": "81.2.69.192"
},
"tags": [
"preserve_original_event",
"preserve_duplicate_custom_fields"
],
"threat": {
"enrichments": {
"indicator": {
"file": {
"directory": "C:\\Windows\\Temp",
"hash": {
"sha1": "eff06d27e192d18afb00237ca00c4e5dd4012345",
"sha256": "bd914e55d55a31b7bdc95fa617f9925ff3eba703afd7a8b70cea18dcae512345"
},
"name": "ai_alternate_stream_s7f_48qa.txt:ai-8xNfG12345",
"size": 27436
}
}
}
},
"user": {
"domain": "a-domain",
"id": "S-1-5-1",
"name": "account name"
}
},
Expand All @@ -119,9 +115,7 @@
"threat"
],
"id": "da638034938542563831_172489803",
"kind": [
"alert"
],
"kind": "alert",
"original": "{\"Tenant\":\"DefaultTenant\",\"category\":\"AdvancedHunting-AlertInfo\",\"operationName\":\"Publish\",\"properties\":{\"AlertId\":\"da638034938542563831_172489803\",\"AttackTechniques\":\"[\\\"Valid Accounts (T1078)\\\",\\\"Cloud Accounts (T1078.004)\\\"]\",\"Category\":\"Persistence\",\"DetectionSource\":\"EDR\",\"MachineGroup\":null,\"ServiceSource\":\"Microsoft Defender for Endpoint\",\"Severity\":\"Medium\",\"Timestamp\":\"2022-11-08T08:42:17.2954051Z\",\"Title\":\"Anomalous silent process exit monitor registration\"},\"tenantId\":\"12345af3-bc0e-4f36-b08e-27759e912345\",\"time\":\"2022-11-08T08:44:14.7934901Z\"}",
"provider": "Microsoft Defender for Endpoint",
"severity": 3,
Expand Down Expand Up @@ -185,9 +179,7 @@
"threat"
],
"id": "da638034938542563831_172489803",
"kind": [
"alert"
],
"kind": "alert",
"original": "{\"Tenant\":\"DefaultTenant\",\"category\":\"AdvancedHunting-AlertInfo\",\"operationName\":\"Publish\",\"properties\":{\"AlertId\":\"da638034938542563831_172489803\",\"AttackTechniques\":\"\",\"Category\":\"Persistence\",\"DetectionSource\":\"EDR\",\"MachineGroup\":null,\"ServiceSource\":\"Microsoft Defender for Endpoint\",\"Severity\":\"Medium\",\"Timestamp\":\"2022-11-08T08:42:17.2954051Z\",\"Title\":\"Anomalous silent process exit monitor registration\"},\"tenantId\":\"12345af3-bc0e-4f36-b08e-27759e912345\",\"time\":\"2022-11-08T08:44:14.7934901Z\"}",
"provider": "Microsoft Defender for Endpoint",
"severity": 3,
Expand Down
10 changes: 5 additions & 5 deletions packages/m365_defender/data_stream/event/_dev/test/pipeline/test-app-and-identity.log
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@@ -1,6 +1,6 @@
{"Tenant":"DefaultTenant","category":"AdvancedHunting-IdentityLogonEvents","operationName":"Publish","properties":{"Timestamp":"2022-11-22T06:19:37Z","TargetDeviceName":"","DestinationIPAddress":"","DestinationPort":"","DeviceName":"testmachine5","IPAddress":"89.160.20.112","OSPlatform":"Windows 10","DeviceType":"Desktop","Protocol":"NTLM","AccountDomain":"","AccountSid":"S-1-5-21-1874808502-2282212345-3464712345-500","AccountName":"administrator1","AccountDisplayName":"","AccountObjectId":"","AccountUpn":"","ActionType":"LogonSuccess","AdditionalFields":"{\"CallerProcessID\":4248}","Application":"Office 365","DestinationDeviceName":"","FailureReason":"","Isp":"","Location":"","LogonType":"Login:resume","Port":"","ReportId":"1234","TargetAccountDisplayName":""},"tenantId":"12345af3-bc0e-4f36-b08e-27759e912345","time":"2022-11-22T06:20:58.5237104Z"}
{"Tenant":"DefaultTenant","category":"AdvancedHunting-IdentityQueryEvents","operationName":"Publish","properties":{"Timestamp":"2022-11-22T06:19:37Z","TargetDeviceName":"","DestinationIPAddress":"","DestinationPort":"","DeviceName":"testmachine5","IPAddress":"","Protocol":"NTLM","AccountDomain":"testmachine6","AccountSid":"S-1-5-21-1874808502-2282282112-3464708742-500","AccountName":"administrator1","AccountDisplayName":"","AccountObjectId":"","AccountUpn":"","ActionType":"ProcessCreated","AdditionalFields":"{\"CallerProcessID\":4248}","Application":"","DestinationDeviceName":"","Location":"","Port":"","Query":"","QueryTarget":"","QueryType":"","ReportId":"1234","TargetAccountDisplayName":"","TargetAccountUpn":""},"tenantId":"12345af3-bc0e-4f36-b08e-27759e912345","time":"2022-11-22T06:20:58.5237104Z"}
{"Tenant":"DefaultTenant","category":"AdvancedHunting-IdentityDirectoryEvents","operationName":"Publish","properties":{"Timestamp":"2022-11-22T06:19:37Z","TargetDeviceName":"","DestinationIPAddress":"","DestinationPort":"","DeviceName":"testmachine5","IPAddress":"","Protocol":"NTLM","AccountDomain":"testmachine6","AccountSid":"S-1-5-21-1874808502-2282282112-3464708742-500","AccountName":"administrator1","AccountDisplayName":"","AccountObjectId":"","AccountUpn":"","ActionType":"ProcessCreated","AdditionalFields":"{\"CallerProcessID\":4248}","Application":"","DestinationDeviceName":"","ISP":"","Location":"","Port":"","ReportId":"1234","TargetAccountDisplayName":"","TargetAccountUpn":""},"tenantId":"12345af3-bc0e-4f36-b08e-27759e912345","time":"2022-11-22T06:20:58.5237104Z"}
{"Tenant":"DefaultTenant","category":"AdvancedHunting-CloudAppEvents","operationName":"Publish","properties":{"AccountDisplayName":"name","AccountId":"007c979b-47e7-4747-b9a3-58de6bd12345","AccountObjectId":"007c979b-47e7-4747-b9a3-58de6bdb275a","AccountType":"Admin","ActionType":"Write Deployments","ActivityObjects":"","ActivityType":"Basic","AdditionalFields":"{\"IsSatelliteProvider\":false}","AppInstanceId":0,"Application":"Microsoft Azure","ApplicationId":12260,"City":"","CountryCode":"","DeviceType":null,"IPAddress":"81.2.69.142","IPCategory":null,"IPTags":null,"ISP":"","IsAdminOperation":false,"IsAnonymousProxy":false,"IsExternalUser":false,"IsImpersonated":false,"OSPlatform":null,"ObjectId":"","ObjectName":"","ObjectType":"Resource","RawEventData":"{\"AccountMoniker\":\"MdsResourceStackRPFCentralUS\",\"AccountMonikerLocation\":\"centralus\"}","ReportId":"366c7d2f964643f736af67ec54d23d4d729b1f17478ea94b05ad53a47a812345","Timestamp":"2022-12-08T12:48:45.833Z","UserAgent":null,"UserAgentTags":null},"tenantId":"8df34af3-bc0e-4f36-b08e-27759e912345","time":"2022-12-08T12:52:23.6440369Z"}
{"time": "2023-06-21T11:55:44.4674988Z", "tenantId": "25cba38d-0984-4f37-b801-5ea07c659887", "operationName": "Publish", "category": "AdvancedHunting-IdentityQueryEvents", "properties": {"ActionType":"SAMR query","QueryTarget":"Server_Admin","Protocol":"Samr","AccountDisplayName":"D2WXA1303R$","AccountUpn":null,"AccountName":null,"AccountDomain":null,"AccountSid":null,"AccountObjectId":null,"Query":null,"IPAddress":"10.180.101.20","Location":null,"DeviceName":"d2wxa1303r.d300b.cenlar.com","QueryType":"QueryGroup","DestinationDeviceName":"d2win02r.d300b.cenlar.com","TargetAccountDisplayName":null,"TargetDeviceName":null,"Port":58210,"DestinationPort":445,"DestinationIPAddress":"10.180.100.81","TargetAccountUpn":null,"AdditionalFields":{"AttackTechniques":"Permission Groups Discovery (T1069), Account Discovery (T1087), Domain Groups (T1069.002), Domain Account (T1087.002)","Category":"Discovery","TO.DEVICE":"D2WIN02R","ACTOR.DEVICE":"D2WXA1303R","DestinationComputerOperatingSystemType":"windows","SourceComputerOperatingSystem":"windows server 2019 datacenter","Count":"1","SourceComputerOperatingSystemType":"windows","SourceAccountId":"b7c4b4f6-3240-4a67-8255-d5694015588c","SourceComputerOperatingSystemVersion":"10.0 (17763)","DestinationComputerOperatingSystem":"windows server 2012 datacenter","SourceComputerObjectGuid":"b7c4b4f6-3240-4a67-8255-d5694015588c","DestinationComputerOperatingSystemVersion":"6.2 (9200)","SourceAccountSid":"S-1-5-21-621940831-1238047941-1264475144-86894","FROM.DEVICE":"D2WXA1303R","DestinationComputerObjectGuid":"370f6773-bfd8-4356-8e83-e65a1a9b3469"},"ReportId":"5006fead-26b0-4443-8118-5838aef430eb_108408875_1687348229598_20940","Timestamp":"2023-06-21T11:50:29.598Z","Application":"Active Directory"}, "Tenant": "DefaultTenant"}
{"time": "2023-06-21T11:55:46.0067676Z", "tenantId": "25cba38d-0984-4f37-b801-5ea07c659887", "operationName": "Publish", "category": "AdvancedHunting-IdentityQueryEvents", "properties": {"ActionType":"DNS query","QueryTarget":"_grpc_config.useast-comms.dgsecure.com","Protocol":"Dns","AccountDisplayName":null,"AccountUpn":null,"AccountName":null,"AccountDomain":null,"AccountSid":null,"AccountObjectId":null,"Query":null,"IPAddress":"10.173.130.18","Location":null,"DeviceName":"d1wrpws12d.d300b.cenlar.com","QueryType":"Text","DestinationDeviceName":"d1win02p.d300b.cenlar.com","TargetAccountDisplayName":null,"TargetDeviceName":null,"Port":57396,"DestinationPort":53,"DestinationIPAddress":"10.170.100.81","TargetAccountUpn":null,"AdditionalFields":{"SourceComputerOperatingSystemVersion":"10.0 (19044)","TO.DEVICE":"D1WIN02P","DestinationComputerOperatingSystem":"windows server 2012 datacenter","DestinationComputerOperatingSystemType":"windows","SourceComputerObjectGuid":"73938f34-664b-4d63-9b31-ada0c8060676","DestinationComputerOperatingSystemVersion":"6.2 (9200)","SourceComputerOperatingSystem":"windows 10 enterprise","Count":"2","SourceComputerOperatingSystemType":"windows","FROM.DEVICE":"D1WRPWS12D","DestinationComputerObjectGuid":"dfa29ee1-8b5c-400b-8608-4f4330bf9ed2"},"ReportId":"8923586f-1fc6-4393-afa0-5579dba38b0a_108408875_1687348398643_20940","Timestamp":"2023-06-21T11:53:18.643Z","Application":"Active Directory"}, "Tenant": "DefaultTenant"}
{"Tenant":"DefaultTenant","category":"AdvancedHunting-IdentityQueryEvents","operationName":"Publish","properties":{"Timestamp":"2022-11-22T06:19:37Z","TargetDeviceName":"","DestinationIPAddress":"","DestinationPort":"","DeviceName":"testmachine5","IPAddress":"","Protocol":"NTLM","AccountDomain":"testmachine6","AccountSid":"S-1-5-21-1874808502-2282282112-3464708742-500","AccountName":"administrator1","AccountDisplayName":"","AccountObjectId":"","AccountUpn":"","ActionType":"ProcessCreated","AdditionalFields":"{\"CallerProcessID\":4248}","Application":"","DestinationDeviceName":"","IsAdminOperation":null,"Location":"","Port":"","Query":"","QueryTarget":"","QueryType":"","ReportId":"1234","TargetAccountDisplayName":"","TargetAccountUpn":""},"tenantId":"12345af3-bc0e-4f36-b08e-27759e912345","time":"2022-11-22T06:20:58.5237104Z"}
{"Tenant":"DefaultTenant","category":"AdvancedHunting-IdentityDirectoryEvents","operationName":"Publish","properties":{"Timestamp":"2022-11-22T06:19:37Z","TargetDeviceName":"","DestinationIPAddress":"","DestinationPort":"","DeviceName":"testmachine5","IPAddress":"","Protocol":"NTLM","AccountDomain":"testmachine6","AccountSid":"S-1-5-21-1874808502-2282282112-3464708742-500","AccountName":"administrator1","AccountDisplayName":"","AccountObjectId":"","AccountUpn":"","ActionType":"ProcessCreated","AdditionalFields":"{\"CallerProcessID\":4248}","Application":"","DestinationDeviceName":"","IsAdminOperation":"","ISP":"","Location":"","Port":"","ReportId":"1234","TargetAccountDisplayName":"","TargetAccountUpn":""},"tenantId":"12345af3-bc0e-4f36-b08e-27759e912345","time":"2022-11-22T06:20:58.5237104Z"}
{"Tenant":"DefaultTenant","category":"AdvancedHunting-CloudAppEvents","operationName":"Publish","properties":{"AccountDisplayName":"name","AccountId":"007c979b-47e7-4747-b9a3-58de6bd12345","AccountObjectId":"007c979b-47e7-4747-b9a3-58de6bdb275a","AccountType":"Admin","ActionType":"Write Deployments","ActivityObjects":"","ActivityType":"Basic","AdditionalFields":"{\"IsSatelliteProvider\":false}","AppInstanceId":0,"Application":"Microsoft Azure","ApplicationId":12260,"City":"","CountryCode":"","DeviceType":null,"IPAddress":"81.2.69.142","IPCategory":null,"IPTags":null,"ISP":"","IsAdminOperation":0,"IsAnonymousProxy":false,"IsExternalUser":false,"IsImpersonated":false,"OSPlatform":null,"ObjectId":"","ObjectName":"","ObjectType":"Resource","RawEventData":"{\"AccountMoniker\":\"MdsResourceStackRPFCentralUS\",\"AccountMonikerLocation\":\"centralus\"}","ReportId":"366c7d2f964643f736af67ec54d23d4d729b1f17478ea94b05ad53a47a812345","Timestamp":"2022-12-08T12:48:45.833Z","UserAgent":null,"UserAgentTags":null},"tenantId":"8df34af3-bc0e-4f36-b08e-27759e912345","time":"2022-12-08T12:52:23.6440369Z"}
{"time": "2023-06-21T11:55:44.4674988Z", "tenantId": "25cba38d-0984-4f37-b801-5ea07c659887", "operationName": "Publish", "category": "AdvancedHunting-IdentityQueryEvents", "properties": {"ActionType":"SAMR query","QueryTarget":"Server_Admin","Protocol":"Samr","AccountDisplayName":"D2WXA1303R$","AccountUpn":null,"AccountName":null,"AccountDomain":null,"AccountSid":null,"AccountObjectId":null,"Query":null,"IPAddress":"10.180.101.20","Location":null,"DeviceName":"d2wxa1303r.d300b.cenlar.com","QueryType":"QueryGroup","DestinationDeviceName":"d2win02r.d300b.cenlar.com","IsAdminOperation":"0","TargetAccountDisplayName":null,"TargetDeviceName":null,"Port":58210,"DestinationPort":445,"DestinationIPAddress":"10.180.100.81","TargetAccountUpn":null,"AdditionalFields":{"AttackTechniques":"Permission Groups Discovery (T1069), Account Discovery (T1087), Domain Groups (T1069.002), Domain Account (T1087.002)","Category":"Discovery","TO.DEVICE":"D2WIN02R","ACTOR.DEVICE":"D2WXA1303R","DestinationComputerOperatingSystemType":"windows","SourceComputerOperatingSystem":"windows server 2019 datacenter","Count":"1","SourceComputerOperatingSystemType":"windows","SourceAccountId":"b7c4b4f6-3240-4a67-8255-d5694015588c","SourceComputerOperatingSystemVersion":"10.0 (17763)","DestinationComputerOperatingSystem":"windows server 2012 datacenter","SourceComputerObjectGuid":"b7c4b4f6-3240-4a67-8255-d5694015588c","DestinationComputerOperatingSystemVersion":"6.2 (9200)","SourceAccountSid":"S-1-5-21-621940831-1238047941-1264475144-86894","FROM.DEVICE":"D2WXA1303R","DestinationComputerObjectGuid":"370f6773-bfd8-4356-8e83-e65a1a9b3469"},"ReportId":"5006fead-26b0-4443-8118-5838aef430eb_108408875_1687348229598_20940","Timestamp":"2023-06-21T11:50:29.598Z","Application":"Active Directory"}, "Tenant": "DefaultTenant"}
{"time": "2023-06-21T11:55:46.0067676Z", "tenantId": "25cba38d-0984-4f37-b801-5ea07c659887", "operationName": "Publish", "category": "AdvancedHunting-IdentityQueryEvents", "properties": {"ActionType":"DNS query","QueryTarget":"_grpc_config.useast-comms.dgsecure.com","Protocol":"Dns","AccountDisplayName":null,"AccountUpn":null,"AccountName":null,"AccountDomain":null,"AccountSid":null,"AccountObjectId":null,"Query":null,"IPAddress":"10.173.130.18","Location":null,"DeviceName":"d1wrpws12d.d300b.cenlar.com","QueryType":"Text","DestinationDeviceName":"d1win02p.d300b.cenlar.com","IsAdminOperation":false,"TargetAccountDisplayName":null,"TargetDeviceName":null,"Port":57396,"DestinationPort":53,"DestinationIPAddress":"10.170.100.81","TargetAccountUpn":null,"AdditionalFields":{"SourceComputerOperatingSystemVersion":"10.0 (19044)","TO.DEVICE":"D1WIN02P","DestinationComputerOperatingSystem":"windows server 2012 datacenter","DestinationComputerOperatingSystemType":"windows","SourceComputerObjectGuid":"73938f34-664b-4d63-9b31-ada0c8060676","DestinationComputerOperatingSystemVersion":"6.2 (9200)","SourceComputerOperatingSystem":"windows 10 enterprise","Count":"2","SourceComputerOperatingSystemType":"windows","FROM.DEVICE":"D1WRPWS12D","DestinationComputerObjectGuid":"dfa29ee1-8b5c-400b-8608-4f4330bf9ed2"},"ReportId":"8923586f-1fc6-4393-afa0-5579dba38b0a_108408875_1687348398643_20940","Timestamp":"2023-06-21T11:53:18.643Z","Application":"Active Directory"}, "Tenant": "DefaultTenant"}
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