Replaced Write-Warning with Write-Error so it can be caught in a try catch block.

Author: dotps1

Functions/Test-WannaCryVulnerability.ps1

@@ -1,7 +1,7 @@
 <#PSScriptInfo
 
 .Version
-    2.0
+    2.1
 .Guid
     477aa3f4-0434-4925-9c92-7323066cceb7
 .Author 
@@ -11,8 +11,7 @@
 .ProjectUri
     https://github.com/dotps1/PSFunctions
 .ReleaseNotes
-    Per Lee Holmes (@lee_holmes) there is still a needed patch for Windows 10 1607 and prior https://twitter.com/Lee_Holmes/status/864604299405410304.  Added Operating System Version to returned object.
-
+    Replaced Write-Warning with Write-Error so it can be caught in a try catch block.
 #>
 
 <#
@@ -42,7 +41,7 @@
     OperatingSystemCaption : Microsoft Windows 7 Professional
     OperatingSystemVersion : 6.1.7601
     Vulnerable             : False
-    AppliedHotFixIds       : KB4012212|KB4015546|KB4015549
+    AppliedHotFixID        : KB4012212|KB4015546|KB4015549
     SMB1FeatureEnabled     : False
     SMB1ProtocolEnabled    : False
 .Example
@@ -52,7 +51,7 @@
     OperatingSystemCaption : Microsoft Windows 7 Professional
     OperatingSystemVersion : 6.1.7601
     Vulnerable             : True
-    AppliedHotFixIds       : 
+    AppliedHotFixID        : 
     SMB1FeatureEnabled     : False
     SMB1ProtocolEnabled    : True
 .Notes
@@ -154,13 +153,13 @@ process {
                 }
 
                 if ([Version]$osInformation.Version -ge [Version]"10.0.15063") {
-                    Write-Warning -Message "$($osInformation.Caption) $($osInformation.Version) is not vulnerable to the WannaCry Exploit."
+                    Write-Error -Message "$($osInformation.Caption) $($osInformation.Version) is not vulnerable to the WannaCry Exploit."
                     continue
                 }
 
                 # HotFixes
                 Write-Progress -Activity "Testing '$nameValue' for WannaCry vulnerabilities using WMI" -CurrentOperation "Inventory hotfix information" -PercentComplete 40
-                $appliedHotFixIds = (Get-WmiObject -ComputerName $nameValue -Class Win32_QuickFixEngineering -Credential $Credential).Where({
+                $appliedHotFixID = (Get-WmiObject -ComputerName $nameValue -Class Win32_QuickFixEngineering -Credential $Credential).Where({
                     $_.HotFixID -in $hotFixIDs
                 }).HotFixID
 
@@ -188,7 +187,7 @@ process {
 
                 # Vulnerable?
                 Write-Progress -Activity "Testing '$nameValue' for WannaCry vulnerabilities using WMI" -CurrentOperation "Determine vulnerability status" -PercentComplete 100
-                if ($appliedHotFixIds.Count -gt 0 -and -not $smb1FeatureEnabled -and -not $smb1ProtocolEnabled) {
+                if ($appliedHotFixId.Count -gt 0 -and -not $smb1FeatureEnabled -and -not $smb1ProtocolEnabled) {
                     $vulnerable = $false
                 } else {
                     $vulnerable = $true
@@ -199,7 +198,7 @@ process {
                     OperatingSystemCaption = $osInformation.Caption
                     OperatingSystemVersion = $osInformation.Version
                     Vulnerable = $vulnerable
-                    AppliedHotFixIds = $appliedHotFixIds -join "|"
+                    AppliedHotFixID = $appliedHotFixId -join "|"
                     SMB1FeatureEnabled = $smb1FeatureEnabled
                     SMB1ProtocolEnabled = $smb1ProtocolEnabled
                 }
@@ -220,7 +219,7 @@ process {
 
                 # HotFixes
                 Write-Progress -Activity "Testing '$nameValue' for WannaCry vulnerabilities using CIM" -CurrentOperation "Inventory hotfix information" -PercentComplete 40
-                $appliedHotFixIds = (Get-CimInstance -CimSession $CimSession -ClassName Win32_QuickFixEngineering).Where({
+                $appliedHotFixID = (Get-CimInstance -CimSession $CimSession -ClassName Win32_QuickFixEngineering).Where({
                     $_.HotFixID -in $hotFixIDs
                 }).HotFixID
 
@@ -249,7 +248,7 @@ process {
 
                 # Vulnerable?
                 Write-Progress -Activity "Testing '$nameValue' for WannaCry vulnerabilities using CIM" -CurrentOperation "Determine vulnerability status" -PercentComplete 100
-                if ($appliedHotFixIds.Count -gt 0 -and -not $smb1FeatureEnabled -and -not $smb1ProtocolEnabled) {
+                if ($appliedHotFixId.Count -gt 0 -and -not $smb1FeatureEnabled -and -not $smb1ProtocolEnabled) {
                     $vulnerable = $false
                 }
 
@@ -258,7 +257,7 @@ process {
                     OperatingSystemCaption = $osInformation.Caption
                     OperatingSystemVersion = $osInformation.Version
                     Vulnerable = $vulnerable
-                    AppliedHotFixIds = $appliedHotFixIds -join "|"
+                    AppliedHotFixID = $appliedHotFixId -join "|"
                     SMB1FeatureEnabled = $smb1FeatureEnabled
                     SMB1ProtocolEnabled = $smb1ProtocolEnabled
                 }

README.md

@@ -250,7 +250,7 @@ PSComputerName         : myrig
 OperatingSystemCaption : Microsoft Windows 7 Professional
 OperatingSystemVersion : 6.1.7601
 Vulnerable             : False
-AppliedHotFixIds       : KB4012212|KB4015546|KB4015549
+AppliedHotFixID        : KB4012212|KB4015546|KB4015549
 SMB1FeatureEnabled     : False
 SMB1ProtocolEnabled    : False
 
@@ -261,7 +261,7 @@ PSComputerName         : workstation
 OperatingSystemCaption : Microsoft Windows 7 Professional
 OperatingSystemVersion : 6.1.7601
 Vulnerable             : True
-AppliedHotFixIds       : 
+AppliedHotFixID        : 
 SMB1FeatureEnabled     : False
 SMB1ProtocolEnabled    : True
 ```