Netskope - Data Movement Tracking (Upload/Download Monitoring)

Requête originale, sans modification.

let significantSizeMB = 50;
NetskopeWebTransactions_CL
| where TimeGenerated > ago(1h)
| where isnotempty(CsUsername)
| where CsBytes > 0 or ScBytes > 0 or XRsFileSize > 0
| extend 
    Direction = case(
        CsBytes > ScBytes, 'Upload',
        ScBytes > CsBytes, 'Download',
        'Unknown'),
    TransferSize = max_of(CsBytes, ScBytes, XRsFileSize)
| summarize 
    TotalUploadBytes = sumif(CsBytes, Direction == 'Upload'),
    TotalDownloadBytes = sumif(ScBytes, Direction == 'Download'),
    UploadCount = countif(Direction == 'Upload'),
    DownloadCount = countif(Direction == 'Download'),
    UniqueFiles = dcount(XCsAppObjectName),
    Files = make_set(XCsAppObjectName, 20),
    FileTypes = make_set(XRsFileType),
    Apps = make_set(XCsApp),
    Destinations = make_set(CsHost, 20)
    by CsUsername, XCDevice, XCCountry, bin(TimeGenerated, 1h)
| extend 
    TotalUploadMB = round(TotalUploadBytes / 1048576.0, 2),
    TotalDownloadMB = round(TotalDownloadBytes / 1048576.0, 2),
    TotalTransferMB = round((TotalUploadBytes + TotalDownloadBytes) / 1048576.0, 2)
| where TotalTransferMB > significantSizeMB
| extend DataFlowSummary = strcat('Upload: ', TotalUploadMB, ' MB (', UploadCount, ' ops), Download: ', TotalDownloadMB, ' MB (', DownloadCount, ' ops)')
| project 
    TimeGenerated,
    User = CsUsername,
    Device = XCDevice,
    Country = XCCountry,
    TotalUploadMB,
    TotalDownloadMB,
    TotalTransferMB,
    UploadOperations = UploadCount,
    DownloadOperations = DownloadCount,
    UniqueFiles,
    FilesSample = Files,
    FileTypes,
    Applications = Apps,
    Destinations,
    DataFlowSummary