|
| 1 | +<# |
| 2 | +.SYNOPSIS |
| 3 | + Checks whether at least one automation rule is configured in Microsoft Sentinel to manage incident response. |
| 4 | +
|
| 5 | +.DESCRIPTION |
| 6 | + This test enumerates all Sentinel-onboarded Log Analytics workspaces across in-scope Azure |
| 7 | + subscriptions and verifies that at least one has an enabled, non-expired automation rule |
| 8 | + configured. Automation rules are Sentinel's central control plane for incident handling: they |
| 9 | + fire on incident creation, incident update, or alert creation, evaluate conditions against |
| 10 | + incident properties, and execute actions such as assigning owners, changing status or severity, |
| 11 | + adding tags, suppressing duplicates, and running playbooks. Without automation rules, every |
| 12 | + incident is processed manually from the raw queue, inflating mean-time-to-acknowledge (MTTA) |
| 13 | + and mean-time-to-respond (MTTR). |
| 14 | +
|
| 15 | + Evaluation steps: |
| 16 | + 1. Enumerate Sentinel-onboarded Log Analytics workspaces via the shared Get-SentinelWorkspaceData helper. |
| 17 | + 2. For each Sentinel-onboarded workspace, query the automation rules collection via the ARM API. |
| 18 | + 3. Pass if at least one workspace has an enabled, non-expired automation rule. |
| 19 | + 4. Fail if no enabled, non-expired automation rules exist across all checked workspaces. |
| 20 | + 5. Investigate if the automation-rules API returns an auth or server error. |
| 21 | + 6. Skip if no Sentinel-onboarded workspaces are found. |
| 22 | +
|
| 23 | +.NOTES |
| 24 | + Test ID: 41213 |
| 25 | + Workshop Task: SECOPS_108 |
| 26 | + Pillar: SecOps |
| 27 | + Category: Security information and event management |
| 28 | + Required permissions: |
| 29 | + - Reader on each subscription (for subscription and workspace enumeration) |
| 30 | + - Microsoft Sentinel Reader on each workspace (for automation rules query) |
| 31 | +#> |
| 32 | + |
| 33 | +function Test-Assessment-41213 { |
| 34 | + |
| 35 | + [ZtTest( |
| 36 | + Category = 'Security information and event management', |
| 37 | + ImplementationCost = 'Low', |
| 38 | + Service = ('Azure'), |
| 39 | + MinimumLicense = ('Consumption-based: Microsoft Sentinel'), |
| 40 | + Pillar = 'SecOps', |
| 41 | + RiskLevel = 'Medium', |
| 42 | + SfiPillar = 'Accelerate response and remediation', |
| 43 | + TenantType = ('Workforce'), |
| 44 | + TestId = 41213, |
| 45 | + Title = 'At least one automation rule is configured in Microsoft Sentinel to manage incident response', |
| 46 | + UserImpact = 'Low' |
| 47 | + )] |
| 48 | + [CmdletBinding()] |
| 49 | + param() |
| 50 | + |
| 51 | + #region Data Collection |
| 52 | + Write-PSFMessage '🟦 Start' -Tag Test -Level VeryVerbose |
| 53 | + $activity = 'Checking automation rules in Sentinel workspaces' |
| 54 | + |
| 55 | + # Q1 + Q2 + onboarding check via shared helper. |
| 56 | + # Returns 'Forbidden' on ARG 401/403 (Investigate). |
| 57 | + # Returns $null on unexpected ARG failure (Investigate). |
| 58 | + # Returns 'NoSubscriptions' when no enabled subscriptions are accessible (Skip). |
| 59 | + # Returns 'NoWorkspaces' when no Log Analytics workspaces exist in scope (Skip). |
| 60 | + $allWorkspaces = Get-SentinelWorkspaceData -Activity $activity |
| 61 | + |
| 62 | + if ($null -eq $allWorkspaces) { |
| 63 | + $params = @{ |
| 64 | + TestId = '41213' |
| 65 | + Title = 'At least one automation rule is configured in Microsoft Sentinel to manage incident response' |
| 66 | + Status = $false |
| 67 | + Result = '⚠️ Azure Resource Graph returned an unexpected error while querying subscriptions or Log Analytics workspaces. This is likely a transient issue, please re-run the assessment.' |
| 68 | + CustomStatus = 'Investigate' |
| 69 | + } |
| 70 | + Add-ZtTestResultDetail @params |
| 71 | + return |
| 72 | + } |
| 73 | + |
| 74 | + if ($allWorkspaces -eq 'Forbidden') { |
| 75 | + $params = @{ |
| 76 | + TestId = '41213' |
| 77 | + Title = 'At least one automation rule is configured in Microsoft Sentinel to manage incident response' |
| 78 | + Status = $false |
| 79 | + Result = '⚠️ Azure Resource Graph returned insufficient permissions when querying subscriptions or workspaces. Ensure you have at least Reader access to the Azure subscriptions being tested.' |
| 80 | + CustomStatus = 'Investigate' |
| 81 | + } |
| 82 | + Add-ZtTestResultDetail @params |
| 83 | + return |
| 84 | + } |
| 85 | + |
| 86 | + if ($allWorkspaces -eq 'NoSubscriptions') { |
| 87 | + Write-PSFMessage 'No enabled subscriptions found — skipping Sentinel automation-rules check.' -Tag Test -Level VeryVerbose |
| 88 | + Add-ZtTestResultDetail -SkippedBecause NotApplicable |
| 89 | + return |
| 90 | + } |
| 91 | + |
| 92 | + if ($allWorkspaces -eq 'NoWorkspaces') { |
| 93 | + Write-PSFMessage 'No Log Analytics workspaces found across accessible subscriptions — skipping Sentinel automation-rules check.' -Tag Test -Level VeryVerbose |
| 94 | + Add-ZtTestResultDetail -SkippedBecause NotApplicable |
| 95 | + return |
| 96 | + } |
| 97 | + |
| 98 | + $checkableWorkspaces = @($allWorkspaces | Where-Object { -not $_.PermissionError }) |
| 99 | + $forbiddenWorkspaces = @($allWorkspaces | Where-Object { $_.PermissionError }) |
| 100 | + $onboardedWorkspaces = @($checkableWorkspaces | Where-Object { $_.SentinelOnboarded }) |
| 101 | + |
| 102 | + if ($onboardedWorkspaces.Count -eq 0) { |
| 103 | + if ($forbiddenWorkspaces.Count -gt 0) { |
| 104 | + # Auth errors mean we cannot confirm whether those workspaces have Sentinel onboarded; |
| 105 | + # we cannot rule out a passing workspace exists among the inaccessible ones. |
| 106 | + $params = @{ |
| 107 | + TestId = '41213' |
| 108 | + Title = 'At least one automation rule is configured in Microsoft Sentinel to manage incident response' |
| 109 | + Status = $false |
| 110 | + Result = '⚠️ One or more Log Analytics workspaces returned insufficient permissions when checking Sentinel onboarding state. No Sentinel-onboarded workspace was confirmed among accessible workspaces — the overall state cannot be determined. Ensure Microsoft Sentinel Reader is granted on all workspaces and re-run the assessment.' |
| 111 | + CustomStatus = 'Investigate' |
| 112 | + } |
| 113 | + Add-ZtTestResultDetail @params |
| 114 | + } |
| 115 | + else { |
| 116 | + # Spec: no Sentinel-onboarded workspaces with full visibility — Skipped. |
| 117 | + Write-PSFMessage 'No Sentinel-onboarded workspaces found — skipping Sentinel automation-rules check.' -Tag Test -Level VeryVerbose |
| 118 | + Add-ZtTestResultDetail -SkippedBecause NotApplicable |
| 119 | + } |
| 120 | + return |
| 121 | + } |
| 122 | + |
| 123 | + # Q1 (spec): List automation rules for each Sentinel-onboarded workspace. |
| 124 | + $rawRulesByWorkspace = @{} |
| 125 | + |
| 126 | + foreach ($workspace in $onboardedWorkspaces) { |
| 127 | + Write-ZtProgress -Activity $activity -Status "Fetching automation rules for $($workspace.WorkspaceName) in $($workspace.SubscriptionName)" |
| 128 | + $automationRulesPath = "$($workspace.WorkspaceId)/providers/Microsoft.SecurityInsights/automationRules?api-version=2024-09-01" |
| 129 | + |
| 130 | + try { |
| 131 | + $rawRulesByWorkspace[$workspace.WorkspaceId] = @(Invoke-ZtAzureRequest -Path $automationRulesPath -ErrorAction Stop) |
| 132 | + } |
| 133 | + catch { |
| 134 | + $rawRulesByWorkspace[$workspace.WorkspaceId] = $null |
| 135 | + Write-PSFMessage "Error querying automation rules for workspace '$($workspace.WorkspaceName)' in subscription '$($workspace.SubscriptionName)': $_" -Tag Test -Level Warning |
| 136 | + } |
| 137 | + } |
| 138 | + |
| 139 | + #endregion Data Collection |
| 140 | + |
| 141 | + #region Assessment Logic |
| 142 | + |
| 143 | + $now = [DateTime]::UtcNow |
| 144 | + |
| 145 | + $workspaceResults = foreach ($workspace in $onboardedWorkspaces) { |
| 146 | + $rawRules = $rawRulesByWorkspace[$workspace.WorkspaceId] |
| 147 | + |
| 148 | + $totalRules = 0 |
| 149 | + $enabledRules = 0 |
| 150 | + $actionTypeCounts = @{} |
| 151 | + $triggersOnCounts = @{} |
| 152 | + |
| 153 | + if ($null -ne $rawRules) { |
| 154 | + $totalRules = $rawRules.Count |
| 155 | + |
| 156 | + foreach ($rule in $rawRules) { |
| 157 | + $trigLogic = $rule.properties.triggeringLogic |
| 158 | + |
| 159 | + # Tally action types and triggersOn across all rules for the distribution columns. |
| 160 | + foreach ($action in $rule.properties.actions) { |
| 161 | + if ($action.actionType) { |
| 162 | + $actionTypeCounts[$action.actionType] = [int]$actionTypeCounts[$action.actionType] + 1 |
| 163 | + } |
| 164 | + } |
| 165 | + if ($trigLogic.triggersOn) { |
| 166 | + $triggersOnCounts[$trigLogic.triggersOn] = [int]$triggersOnCounts[$trigLogic.triggersOn] + 1 |
| 167 | + } |
| 168 | + |
| 169 | + # Count enabled, non-expired rules per spec pass condition. |
| 170 | + # A rule with expirationTimeUtc in the past is effectively disabled even when isEnabled=true. |
| 171 | + if ($trigLogic.isEnabled -eq $true) { |
| 172 | + $expiry = $trigLogic.expirationTimeUtc |
| 173 | + $notExpired = ($null -eq $expiry) -or ([DateTime]$expiry -gt $now) |
| 174 | + if ($notExpired) { |
| 175 | + $enabledRules++ |
| 176 | + } |
| 177 | + } |
| 178 | + } |
| 179 | + } |
| 180 | + |
| 181 | + $actionTypesStr = if ($actionTypeCounts.Count -gt 0) { |
| 182 | + ($actionTypeCounts.GetEnumerator() | Sort-Object Name | ForEach-Object { "$($_.Name): $($_.Value)" }) -join ', ' |
| 183 | + } else { '' } |
| 184 | + |
| 185 | + $triggersOnStr = if ($triggersOnCounts.Count -gt 0) { |
| 186 | + ($triggersOnCounts.GetEnumerator() | Sort-Object Name | ForEach-Object { "$($_.Name): $($_.Value)" }) -join ', ' |
| 187 | + } else { '' } |
| 188 | + |
| 189 | + $rowStatus = if ($null -eq $rawRules) { |
| 190 | + 'Investigate' |
| 191 | + } |
| 192 | + elseif ($enabledRules -gt 0) { |
| 193 | + 'Pass' |
| 194 | + } |
| 195 | + else { |
| 196 | + 'Fail' |
| 197 | + } |
| 198 | + |
| 199 | + [PSCustomObject]@{ |
| 200 | + SubscriptionName = $workspace.SubscriptionName |
| 201 | + SubscriptionId = $workspace.SubscriptionId |
| 202 | + WorkspaceName = $workspace.WorkspaceName |
| 203 | + ResourceGroup = $workspace.ResourceGroup |
| 204 | + WorkspaceId = $workspace.WorkspaceId |
| 205 | + TotalRules = $totalRules |
| 206 | + EnabledRules = $enabledRules |
| 207 | + ActionTypes = $actionTypesStr |
| 208 | + TriggersOn = $triggersOnStr |
| 209 | + RowStatus = $rowStatus |
| 210 | + } |
| 211 | + } |
| 212 | + $workspaceResults = @($workspaceResults) |
| 213 | + |
| 214 | + $passedItems = @($workspaceResults | Where-Object { $_.RowStatus -eq 'Pass' }) |
| 215 | + $investigateItems = @($workspaceResults | Where-Object { $_.RowStatus -eq 'Investigate' }) |
| 216 | + |
| 217 | + $passed = $passedItems.Count -gt 0 |
| 218 | + $customStatus = $null |
| 219 | + |
| 220 | + if (-not $passed -and $investigateItems.Count -gt 0) { |
| 221 | + $customStatus = 'Investigate' |
| 222 | + $testResultMarkdown = "⚠️ The automation-rules API returned an unexpected response for one or more workspaces. Re-run after verifying Microsoft Sentinel Reader access on each affected workspace.`n`n%TestResult%" |
| 223 | + } |
| 224 | + elseif ($passed) { |
| 225 | + $testResultMarkdown = "✅ Automation rules are configured in the Sentinel workspace to manage incident response.`n`n%TestResult%" |
| 226 | + } |
| 227 | + else { |
| 228 | + $testResultMarkdown = "❌ No enabled, non-expired automation rules are configured in the Sentinel workspace.`n`n%TestResult%" |
| 229 | + } |
| 230 | + |
| 231 | + #endregion Assessment Logic |
| 232 | + |
| 233 | + #region Report Generation |
| 234 | + |
| 235 | + $portalSentinelLink = 'https://portal.azure.com/#view/HubsExtension/BrowseResource/resourceType/microsoft.securityinsightsarg%2Fsentinel' |
| 236 | + $tableTitle = 'Automation rules per workspace' |
| 237 | + |
| 238 | + $formatTemplate = @' |
| 239 | +
|
| 240 | +
|
| 241 | +### [{0}]({1}) |
| 242 | +
|
| 243 | +| Subscription | Workspace | Total rules | Enabled rules | Action types | Triggers on | Status | |
| 244 | +| :----------- | :-------- | ----------: | ------------: | :----------- | :---------- | :----- | |
| 245 | +{2} |
| 246 | +'@ |
| 247 | + |
| 248 | + $tableRows = '' |
| 249 | + $maxDisplay = 10 |
| 250 | + $statusPriority = @{ Fail = 0; Investigate = 1; Pass = 2 } |
| 251 | + $displayResults = @($workspaceResults | Sort-Object { $statusPriority[$_.RowStatus] }, SubscriptionName, WorkspaceName) |
| 252 | + $hasMoreItems = $false |
| 253 | + if ($workspaceResults.Count -gt $maxDisplay) { |
| 254 | + $displayResults = @($displayResults | Select-Object -First $maxDisplay) |
| 255 | + $hasMoreItems = $true |
| 256 | + } |
| 257 | + |
| 258 | + foreach ($result in $displayResults) { |
| 259 | + $subLink = "https://portal.azure.com/#resource/subscriptions/$($result.SubscriptionId)" |
| 260 | + $sentinelId = "/subscriptions/$($result.SubscriptionId)/resourcegroups/$($result.ResourceGroup)/providers/microsoft.securityinsightsarg/sentinel/$($result.WorkspaceName)" |
| 261 | + $automationLink = "https://portal.azure.com/#view/Microsoft_Azure_Security_Insights/MainMenuBlade/~/Automation/id/$($sentinelId -replace '/', '%2F')" |
| 262 | + $subMd = "[$(Get-SafeMarkdown $result.SubscriptionName)]($subLink)" |
| 263 | + $workspaceMd = "[$(Get-SafeMarkdown $result.WorkspaceName)]($automationLink)" |
| 264 | + $actionTypesMd = if ($result.ActionTypes) { Get-SafeMarkdown -Text $result.ActionTypes } else { '—' } |
| 265 | + $triggersOnMd = if ($result.TriggersOn) { Get-SafeMarkdown -Text $result.TriggersOn } else { '—' } |
| 266 | + $statusDisplay = switch ($result.RowStatus) { |
| 267 | + 'Pass' { '✅ Pass' } |
| 268 | + 'Fail' { '❌ Fail' } |
| 269 | + 'Investigate' { '⚠️ Investigate' } |
| 270 | + } |
| 271 | + $tableRows += "| $subMd | $workspaceMd | $($result.TotalRules) | $($result.EnabledRules) | $actionTypesMd | $triggersOnMd | $statusDisplay |`n" |
| 272 | + } |
| 273 | + |
| 274 | + if ($hasMoreItems) { |
| 275 | + $remainingCount = $workspaceResults.Count - $maxDisplay |
| 276 | + $tableRows += "`n... and $remainingCount more. [View all in Microsoft Sentinel]($portalSentinelLink)`n" |
| 277 | + } |
| 278 | + |
| 279 | + $mdInfo = $formatTemplate -f $tableTitle, $portalSentinelLink, $tableRows |
| 280 | + $testResultMarkdown = $testResultMarkdown -replace '%TestResult%', $mdInfo |
| 281 | + |
| 282 | + #endregion Report Generation |
| 283 | + |
| 284 | + $params = @{ |
| 285 | + TestId = '41213' |
| 286 | + Title = 'At least one automation rule is configured in Microsoft Sentinel to manage incident response' |
| 287 | + Status = $passed |
| 288 | + Result = $testResultMarkdown |
| 289 | + } |
| 290 | + if ($customStatus) { |
| 291 | + $params.CustomStatus = $customStatus |
| 292 | + } |
| 293 | + |
| 294 | + Add-ZtTestResultDetail @params |
| 295 | +} |
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