Defender-AlertEvidence

ActionTypeTitleSampleRule
anyAlert evidenceYY

any: Alert evidence

#
Table
AlertEvidence

Fields #

NameDescriptionRules
Timestamp
AlertId
Title
Categories
AttackTechniques
ServiceSource2 detection rules
DetectionSource
EntityType2 detection rules
EvidenceRole
EvidenceDirection
FileName
FolderPath
SHA1
SHA256
FileSize
ThreatFamily
RemoteIP
RemoteUrl
AccountName
AccountDomain
AccountSid
AccountObjectId
AccountUpn
DeviceId
DeviceName
LocalIP
NetworkMessageId
EmailSubject
Application
ApplicationId
OAuthApplicationId
ProcessCommandLine
RegistryKey
RegistryValueName
RegistryValueData
AdditionalFields
Severity
CloudResource
CloudPlatform
ResourceType
ResourceID
SubscriptionId
MachineGroup

Example Event #

{
  "AdditionalFields": {
    "DnsDomain": "ludus.domain",
    "HostName": "jd-win11-22h2-1",
    "NetBiosName": "jd-win11-22h2-1.ludus.domain",
    "OSFamily": "Windows",
    "OSVersion": "10.0",
    "IsDomainJoined": true,
    "IpInterfaces": [
      {
        "$id": "2",
        "Address": "10.2.10.21",
        "Type": "ip"
      },
      {
        "$id": "3",
        "Address": "127.0.0.1",
        "Type": "ip"
      },
      {
        "$id": "4",
        "Address": "::1",
        "Type": "ip"
      }
    ],
    "RemediationProviders": [
      {
        "RemediationState": "Active",
        "RemediationDate": "2026-08-01T09:23:27.0361808Z",
        "Type": "remediation-provider"
      }
    ],
    "LastRemediationState": "Active",
    "ThreatAnalysisSummary": [
      {
        "AnalyzersResult": [],
        "Verdict": "Suspicious",
        "AnalysisDate": "2026-08-01T09:23:27.0361808Z"
      }
    ],
    "LastVerdict": "Suspicious",
    "Asset": true,
    "DetailedRoles": [
      "PrimaryDevice"
    ],
    "RbacScopes": {
      "ScopesPerType": {
        "MachineGroupIds": {
          "Mode": "Any",
          "Scopes": [
            "223"
          ]
        },
        "Workloads": {
          "Mode": "All",
          "Scopes": [
            "Mdatp"
          ]
        }
      }
    },
    "Type": "host",
    "LeadingHost": true,
    "Role": 0,
    "MachineId": "99ffb4eafd9c8fb310527d15d666a58ab4661114",
    "MachineIdType": 3,
    "HostMachineId": null,
    "DetectionStatus": "Detected",
    "SuspicionLevel": "Suspicious",
    "EnrichmentType": "MachineIpInterfacesEnrichment",
    "IsIoc": false,
    "MergeByKey": "7i1RmyvZqPH7gS+N2PpTwV+Sz64=",
    "MergeByKeyHex": "EE2D519B2BD9A8F1FB812F8DD8FA53C15F92CFAE"
  },
  "AlertId": "da90e6fe47-4ecb-4cfd-abd5-826bc671bae6_1",
  "AttackTechniques": [
    "Masquerading (T1036)",
    "Masquerade Task or Service (T1036.004)",
    "Windows Service (T1543.003)",
    "Service Execution (T1569.002)",
    "Services Registry Permissions Weakness (T1574.011)"
  ],
  "Categories": [
    "Persistence"
  ],
  "DetectionSource": "EDR",
  "DeviceId": "99ffb4eafd9c8fb310527d15d666a58ab4661114",
  "DeviceName": "jd-win11-22h2-1.ludus.domain",
  "EntityType": "Machine",
  "EvidenceRole": "Impacted",
  "LocalIP": "10.2.10.21",
  "ServiceSource": "Microsoft Defender for Endpoint",
  "Severity": "Medium",
  "Timestamp": "2026-08-01T02:22:14.8885692Z",
  "Title": "Suspicious service registration"
}

Detection Patterns #

Common Indicators #

Field/value combinations most frequently checked by detection rules targeting this event, derived from cross-vendor predicate analysis.

FieldKindValueRulesVendors
DestinationHostname (kusto rule field)is_not_null1 rulekusto

Detection Rules #

Full rule details for this event, including ATT&CK technique mappings and native queries →

Kusto #

  • Possible Phishing with CSL and Network Sessions source medium: This query looks for malicious URL clicks in phishing email recognized by MDO in correlation with CommonSecurityLogs(CSL) & NetworkSession events. If your workspace doesnt have one of the many data sources required for ASIM it may give informational error which can be safely ignored.T1102, T1566
  • Defender Alert Evidence source high: This analytic rule is looking for new alert evidence from Microsoft Defender for Endpoint. The intent is to create entries in the SecurityAlert table for every new alert evidence attached to an entity of type Device or User monitored by Defender for Endpoint.T1546

References #