Cyberdefense/DeepBlueCLI
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Major Update to v1.9 pre-DerbyCon

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This commit is contained in:
Eric Conrad
2017-09-18 21:49:19 -04:00
committed by GitHub
parent dff301f17a
commit a863f74553
1 changed files with 162 additions and 92 deletions
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DeepBlue.ps1
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@ -25,7 +25,7 @@ https://github.com/sans-blue-team/DeepBlueCLI
#> #>
# DeepBlueCLI 0.4 Beta # DeepBlueCLI 1.9 pre-DerbyCon
# Eric Conrad, Backshore Communications, LLC # Eric Conrad, Backshore Communications, LLC
# deepblue <at> backshore <dot> net # deepblue <at> backshore <dot> net
# Twitter: @eric_conrad # Twitter: @eric_conrad
@ -35,18 +35,27 @@ https://github.com/sans-blue-team/DeepBlueCLI
param ([string]$file=$env:file,[string]$log=$env:log) param ([string]$file=$env:file,[string]$log=$env:log)
function Main { function Main {
# Set up the global variables
$text="" # Temporary scratch pad variable to hold output text $text="" # Temporary scratch pad variable to hold output text
$minlength=1000 # Minimum length of command line to alert $minlength=1000 # Minimum length of command line to alert
# Load cmd match regexes from csv file, ignore comments # Load cmd match regexes from csv file, ignore comments
$regexes = Get-Content ".\regexes.txt" | Select-String '^[^#]' | ConvertFrom-Csv $regexes = Get-Content ".\regexes.txt" | Select-String '^[^#]' | ConvertFrom-Csv
#$regexes
# Load cmd whitelist regexes from csv file, ignore comments # Load cmd whitelist regexes from csv file, ignore comments
$whitelist = Get-Content ".\whitelist.txt" | Select-String '^[^#]' | ConvertFrom-Csv $whitelist = Get-Content ".\whitelist.txt" | Select-String '^[^#]' | ConvertFrom-Csv
$logname=Check-Options $file $log $logname=Check-Options $file $log
"Processing the " + $logname + " log..." #"Processing the " + $logname + " log..."
$filter=Create-Filter $file $logname $filter=Create-Filter $file $logname
$failedlogons=0 # Count of failed logons (Security event 4625) $maxfailedlogons=25 # Alert after this many failed logons
$maxfailedlogons=100 # Alert after this many failed logons $failedlogins=@{} # HashTable of failed logins per user
# Obfuscation variables:
$minpercent=.65 # minimum percentage of alphanumeric and common symbols
$maxbinary=.50 # Maximum percentage of zeros and ones to detect binary encoding
#
# Sysmon variables:
# Check for unsigned EXEs/DLLs. This can be very chatty, so it's disabled.
# Set $checkunsigned to 1 to enable:
$checkunsigned = 0
#
# Get the events: # Get the events:
try{ try{
$events = iex "Get-WinEvent $filter -ErrorAction Stop" $events = iex "Get-WinEvent $filter -ErrorAction Stop"
@ -58,22 +67,35 @@ function Main {
exit exit
} }
ForEach ($event in $events) { ForEach ($event in $events) {
$output="" # Final output text string # Custom reporting object:
$obj = [PSCustomObject]@{
Date = $event.TimeCreated
Log = $logname
EventID = $event.id
Message = ""
Command = ""
Decoded = ""
Results = ""
}
$eventXML = [xml]$event.ToXml() $eventXML = [xml]$event.ToXml()
$servicecmd=0 # CLIs via service creation get extra checks, this defaults to 0 (no extra checks)
if ($logname -eq "Security"){ if ($logname -eq "Security"){
if ($event.id -eq 4688){ if ($event.id -eq 4688){
# A new process has been created. (Command Line Logging) # A new process has been created. (Command Line Logging)
$commandline=$eventXML.Event.EventData.Data[8]."#text" $commandline=$eventXML.Event.EventData.Data[8]."#text" # Process Command Line
$creator=$eventXML.Event.EventData.Data[13]."#text" # Creator Process Name
if ($commandline){ if ($commandline){
$output += (Check-Command $commandline $minlength $regexes $whitelist 0) Check-Command
} }
} }
ElseIf ($event.id -eq 4720){ ElseIf ($event.id -eq 4720){
# A user account was created. # A user account was created.
$username=$eventXML.Event.EventData.Data[0]."#text" $username=$eventXML.Event.EventData.Data[0]."#text"
$securityid=$eventXML.Event.EventData.Data[2]."#text" $securityid=$eventXML.Event.EventData.Data[2]."#text"
$output += " New user created: $username`n" $obj.Message = "New User Created"
$output += " - User SID: $securityid`n" $obj.Results = "Username: $username`n"
$obj.Results += "User SID: $securityid`n"
Write-Output $obj
} }
ElseIf(($event.id -eq 4728) -or ($event.id -eq 4732)){ ElseIf(($event.id -eq 4728) -or ($event.id -eq 4732)){
# A member was added to a security-enabled (global|local) group. # A member was added to a security-enabled (global|local) group.
@ -83,11 +105,12 @@ function Main {
$username=$eventXML.Event.EventData.Data[0]."#text" $username=$eventXML.Event.EventData.Data[0]."#text"
$securityid=$eventXML.Event.EventData.Data[1]."#text" $securityid=$eventXML.Event.EventData.Data[1]."#text"
switch ($event.id){ switch ($event.id){
4728 {$output += " User added to global $groupname group`n"} 4728 {$obj.Message = "User added to global $groupname group"}
4732 {$output += " User added to local $groupname group`n"} 4732 {$obj.Message = "User added to local $groupname group"}
} }
$output += " - Username: $username`n" $obj.Results = "Username: $username`n"
$output += " - User SID: $securityid`n" $obj.Results += "User SID: $securityid`n"
Write-Output $obj
} }
} }
ElseIf($event.id -eq 4625){ ElseIf($event.id -eq 4625){
@ -95,48 +118,63 @@ function Main {
# Requires auditing logon failures # Requires auditing logon failures
# https://technet.microsoft.com/en-us/library/cc976395.aspx # https://technet.microsoft.com/en-us/library/cc976395.aspx
$username=$eventXML.Event.EventData.Data[5]."#text" $username=$eventXML.Event.EventData.Data[5]."#text"
$failedlogons += 1 if($failedlogins.ContainsKey($username)){
$count=$failedlogins.Get_Item($username)
$failedlogins.Set_Item($username,$count+1)
}
Else{
$failedlogins.Set_Item($username,1)
}
} }
} }
ElseIf ($logname -eq "System"){ ElseIf ($logname -eq "System"){
if ($event.id -eq 7045){ if ($event.id -eq 7045){
# A service was installed in the system. # A service was installed in the system.
$servicename=$eventXML.Event.EventData.Data[0]."#text" $servicename=$eventXML.Event.EventData.Data[0]."#text"
#$servicename $commandline=$eventXML.Event.EventData.Data[1]."#text"
# Check for suspicious service name # Check for suspicious service name
$text = (Check-Regex $servicename $regexes 1) $text = (Check-Regex $servicename 1)
if ($text){ if ($text){
$output += " Service created, service name: $servicename`n" $obj.Message = "New Service Created"
$output += $text $obj.Command = $commandline
$obj.Results = "Service name: $servicename`n"
$obj.Results +=$text
Write-Output $obj
} }
# Check for suspicious cmd # Check for suspicious cmd
$commandline=$eventXML.Event.EventData.Data[1]."#text"
if ($commandline){ if ($commandline){
$output += (Check-Command $commandline $minlength $regexes $whitelist 1) $servicecmd=1 # CLIs via service creation get extra checks
Check-Command
} }
} }
ElseIf ($event.id -eq 7030){ ElseIf ($event.id -eq 7030){
# The ... service is marked as an interactive service. However, the system is configured # The ... service is marked as an interactive service. However, the system is configured
# to not allow interactive services. This service may not function properly. # to not allow interactive services. This service may not function properly.
$servicename=$eventXML.Event.EventData.Data."#text" $servicename=$eventXML.Event.EventData.Data."#text"
$output += " Interactive service warning, service name: $servicename`n" $obj.Message = "Interactive service warning"
$obj.Results = "Service name: $servicename`n"
$obj.Results += "Malware (and some third party software) trigger this warning"
# Check for suspicious service name # Check for suspicious service name
$output += (Check-Regex $servicename $regexes 1) $servicecmd=1 # CLIs via service creation get extra check
$obj.Results += (Check-Regex $servicename 1)
Write-Output $obj
} }
ElseIf ($event.id -eq 7036){ ElseIf ($event.id -eq 7036){
# The ... service entered the stopped|running state. # The ... service entered the stopped|running state.
$servicename=$eventXML.Event.EventData.Data[0]."#text" $servicename=$eventXML.Event.EventData.Data[0]."#text"
$text = (Check-Regex $servicename $regexes 1) $text = (Check-Regex $servicename 1)
if ($text){ if ($text){
$output += " " + $event.Message + "`n" $obj.Message = "Suspicious Service Name"
$output += $text $obj.Results = "Service name: $servicename`n"
$obj.Results += $text
Write-Output $obj
} }
} }
} }
ElseIf ($logname -eq "Application"){ ElseIf ($logname -eq "Application"){
if (($event.id -eq 2) -and ($event.Providername -eq "EMET")){ if (($event.id -eq 2) -and ($event.Providername -eq "EMET")){
# EMET Block # EMET Block
$output += " EMET Block`n" $obj.Message="EMET Block"
if ($event.Message){ if ($event.Message){
# EMET Message is a blob of text that looks like this: # EMET Message is a blob of text that looks like this:
######################################################### #########################################################
@ -151,37 +189,51 @@ function Main {
# Module : mshtml.dll # Module : mshtml.dll
# Address : 0x6FBA7512, pull out relevant parts # Address : 0x6FBA7512, pull out relevant parts
$array = $event.message -split '\n' # Split each line of the message into an array $array = $event.message -split '\n' # Split each line of the message into an array
$message = $array[0] $text = $array[0]
$application = Remove-Spaces($array[3]) $application = Remove-Spaces($array[3])
$command= $application -Replace "^Application: ",""
$username = Remove-Spaces($array[4]) $username = Remove-Spaces($array[4])
$output += " - Message: $message`n" $obj.Message="EMET Block"
$output += " - $application`n" $obj.Command = "$command"
$output += " - $username`n" $obj.Results = "$text`n"
$obj.Results += "$username`n"
} }
Else{ Else{
# If the message is blank: EMET is not installed locally. # If the message is blank: EMET is not installed locally.
# This occurs when parsing remote event logs sent from systems with EMET installed # This occurs when parsing remote event logs sent from systems with EMET installed
$output += " Warning: EMET Message field is blank. Install EMET locally to see full details of this alert" $obj.Message="Warning: EMET Message field is blank. Install EMET locally to see full details of this alert"
} }
Write-Output $obj
} }
} }
ElseIf ($logname -eq "Applocker"){ ElseIf ($logname -eq "Applocker"){
if ($event.id -eq 8004){ if ($event.id -eq 8003){
# ...was allowed to run but would have been prevented from running if the AppLocker policy were enforced.
$obj.Message="Applocker Warning"
$command = $event.message -Replace " was .*$",""
$obj.Command=$command
$obj.Results = $event.message
Write-Output $obj
}
ElseIf ($event.id -eq 8004){
$obj.Message="Applocker Block"
# ...was prevented from running. # ...was prevented from running.
$output += " Applocker block: " + $event.message $command = $event.message -Replace " was .*$",""
$obj.Command=$command
$obj.Results = $event.message
Write-Output $obj
} }
} }
ElseIf ($logname -eq "PowerShell"){ ElseIf ($logname -eq "PowerShell"){
#$event.pd
if ($event.id -eq 4103){ if ($event.id -eq 4103){
$pscommand= $eventXML.Event.EventData.Data[2]."#text" $commandline= $eventXML.Event.EventData.Data[2]."#text"
if ($pscommand -Match "Host Application"){ if ($commandline -Match "Host Application"){
# Multiline replace, remove everything before "Host Application = " # Multiline replace, remove everything before "Host Application = "
$pscommand = $pscommand -Replace "(?ms)^.*Host.Application = ","" $commandline = $commandline -Replace "(?ms)^.*Host.Application = ",""
# Remove every line after the "Host Application = " line. # Remove every line after the "Host Application = " line.
$pscommand = $pscommand -Replace "(?ms)`n.*$","" $commandline = $commandline -Replace "(?ms)`n.*$",""
if ($pscommand){ if ($commandline){
$output += (Check-Command $pscommand $minlength $regexes $whitelist 0) Check-Command
} }
} }
} }
@ -214,9 +266,9 @@ function Main {
# #
# This ignores scripts and grabs PowerShell CLIs # This ignores scripts and grabs PowerShell CLIs
if (-not ($eventxml.Event.EventData.Data[4]."#text")){ if (-not ($eventxml.Event.EventData.Data[4]."#text")){
$pscommand=$eventXML.Event.EventData.Data[2]."#text" $commandline=$eventXML.Event.EventData.Data[2]."#text"
if ($pscommand){ if ($commandline){
$output += (Check-Command $pscommand 500 $regexes $whitelist 0) Check-Command
} }
} }
} }
@ -224,32 +276,39 @@ function Main {
ElseIf ($logname -eq "Sysmon"){ ElseIf ($logname -eq "Sysmon"){
# Check command lines # Check command lines
if ($event.id -eq 1){ if ($event.id -eq 1){
$creator=$eventXML.Event.EventData.Data[14]."#text"
$commandline=$eventXML.Event.EventData.Data[4]."#text" $commandline=$eventXML.Event.EventData.Data[4]."#text"
if ($commandline){ if ($commandline){
$output += (Check-Command $commandline $minlength $regexes $whitelist 0) Check-Command
} }
} }
# Check for unsigned EXEs/DLLs:
ElseIf ($event.id -eq 7){ ElseIf ($event.id -eq 7){
# Check for unsigned EXEs/DLLs:
# This can be very chatty, so it's disabled.
# Set $checkunsigned to 1 (global variable section) to enable:
if ($checkunsigned){
if ($eventXML.Event.EventData.Data[6]."#text" -eq "false"){ if ($eventXML.Event.EventData.Data[6]."#text" -eq "false"){
$obj.Message="Unsigned Image (DLL)"
$image=$eventXML.Event.EventData.Data[3]."#text" $image=$eventXML.Event.EventData.Data[3]."#text"
$imageload=$eventXML.Event.EventData.Data[4]."#text" $imageload=$eventXML.Event.EventData.Data[4]."#text"
# $hash=$eventXML.Event.EventData.Data[5]."#text" # $hash=$eventXML.Event.EventData.Data[5]."#text"
$pscommand= " - Image: " + $image + "`r`n" $obj.Command=$imageload
$pscommand+= " - ImageLoaded: " + $imageload + "`r`n" $obj.Results= "Loaded by: $image"
$output+= " Unsigned image:`r`n" Write-Output $obj
$output+= $pscommand
} }
} }
} }
if ($output){
$event.TimeCreated
$output
""
} }
} }
if ($failedlogons -gt $maxfailedlogons){ # Iterate through failed logins hashtable (key is $username)
"High number of failed logons in the security event log: " + $failedlogons foreach ($username in $failedlogins.Keys) {
$count=$failedlogins.Get_Item($username)
if ($count -gt $maxfailedlogons){
$obj.Message="High number of failed logons"
$obj.Results= "Username: $username`n"
$obj.Results += "$count failed logons"
Write-Output $obj
}
} }
} }
@ -298,7 +357,7 @@ function Check-Options($file, $log)
"Security" {$logname="Security"} "Security" {$logname="Security"}
"System" {$logname="System"} "System" {$logname="System"}
"Application" {$logname="Application"} "Application" {$logname="Application"}
"Microsoft-Windows-AppLocker*" {$logname="Applocker"} "Microsoft-Windows-AppLocker/EXE and DLL" {$logname="Applocker"}
"Microsoft-Windows-PowerShell/Operational" {$logname="Powershell"} "Microsoft-Windows-PowerShell/Operational" {$logname="Powershell"}
"Microsoft-Windows-Sysmon/Operational" {$logname="Sysmon"} "Microsoft-Windows-Sysmon/Operational" {$logname="Sysmon"}
default {"Logic error 3, should not reach here...";Exit 1} default {"Logic error 3, should not reach here...";Exit 1}
@ -338,7 +397,7 @@ function Create-Filter($file, $logname)
"Security" {$filter="@{Logname=""Security"";ID=$sec_events}"} "Security" {$filter="@{Logname=""Security"";ID=$sec_events}"}
"System" {$filter="@{Logname=""System"";ID=$sys_events}"} "System" {$filter="@{Logname=""System"";ID=$sys_events}"}
"Application" {$filter="@{Logname=""Application"";ID=$app_events}"} "Application" {$filter="@{Logname=""Application"";ID=$app_events}"}
"Applocker" {$filter="@{logname=""Microsoft-Windows-AppLocker"";ID=$applocker_events}"} "Applocker" {$filter="@{logname=""Microsoft-Windows-AppLocker/EXE and DLL"";ID=$applocker_events}"}
"Powershell" {$filter="@{logname=""Microsoft-Windows-PowerShell/Operational"";ID=$powershell_events}"} "Powershell" {$filter="@{logname=""Microsoft-Windows-PowerShell/Operational"";ID=$powershell_events}"}
"Sysmon" {$filter="@{logname=""Microsoft-Windows-Sysmon/Operational"";ID=$sysmon_events}"} "Sysmon" {$filter="@{logname=""Microsoft-Windows-Sysmon/Operational"";ID=$sysmon_events}"}
default {"Logic error 2, should not reach here...";Exit 1} default {"Logic error 2, should not reach here...";Exit 1}
@ -348,7 +407,7 @@ function Create-Filter($file, $logname)
} }
function Check-Command($commandline,$minlength,$regexes,$whitelist,$servicecmd){ function Check-Command(){
$text="" $text=""
$base64="" $base64=""
# Check to see if command is whitelisted # Check to see if command is whitelisted
@ -358,13 +417,12 @@ function Check-Command($commandline,$minlength,$regexes,$whitelist,$servicecmd){
return return
} }
} }
#$cmdlength=$commandline.length
#if ($cmdlength -gt $minlength){
if ($commandline.length -gt $minlength){ if ($commandline.length -gt $minlength){
$text += " - Long Command Line: greater than $minlength bytes`n" $text += "Long Command Line: greater than $minlength bytes`n"
} }
$text += (Check-Obfu $commandline) $text += (Check-Obfu $commandline)
$text += (Check-Regex $commandline $regexes 0) $text += (Check-Regex $commandline 0)
$text += (Check-Creator $commandline $creator)
# Check for base64 encoded function, decode and print if found # Check for base64 encoded function, decode and print if found
# This section is highly use case specific, other methods of base64 encoding and/or compressing may evade these checks # This section is highly use case specific, other methods of base64 encoding and/or compressing may evade these checks
if ($commandline -Match "\-enc.*[A-Za-z0-9/+=]{100}"){ if ($commandline -Match "\-enc.*[A-Za-z0-9/+=]{100}"){
@ -379,41 +437,38 @@ function Check-Command($commandline,$minlength,$regexes,$whitelist,$servicecmd){
# Metasploit-style compressed and base64-encoded function. Uncompress it. # Metasploit-style compressed and base64-encoded function. Uncompress it.
$decoded=New-Object IO.MemoryStream(,[Convert]::FromBase64String($base64)) $decoded=New-Object IO.MemoryStream(,[Convert]::FromBase64String($base64))
$uncompressed=(New-Object IO.StreamReader(((New-Object IO.Compression.GzipStream($decoded,[IO.Compression.CompressionMode]::Decompress))),[Text.Encoding]::ASCII)).ReadToEnd() $uncompressed=(New-Object IO.StreamReader(((New-Object IO.Compression.GzipStream($decoded,[IO.Compression.CompressionMode]::Decompress))),[Text.Encoding]::ASCII)).ReadToEnd()
$text += " Decoded/decompressed Base64:" + $uncompressed $obj.Decoded=$uncompressed
$text += " - Base64-encoded and compressed function`n" $text += "Base64-encoded and compressed function`n"
} }
else{ else{
$decoded = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String($base64)) $decoded = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String($base64))
$text += " Decoded Base64:" + $decoded + "`n" $obj.Decoded=$decoded
$text += " - Base64-encoded function`n" $text += "Base64-encoded function`n"
$text += (Check-Obfu $decoded) $text += (Check-Obfu $decoded)
$text += (Check-Regex $decoded $regexes 0) $text += (Check-Regex $decoded 0)
#foreach ($regex in $regexes){
# if ($regex.Type -eq 0) { # Image Path match
# if ($decoded -Match $regex.regex) {
# $text += " - " + $regex.String + "`n"
# }
# }
#}
} }
} }
if ($text){ if ($text){
if ($servicecmd){ if ($servicecmd){
return " Service File Name: $commandline`n" + $text $obj.Message = "Suspicious Service Command"
$obj.Results = "Service name: $servicename`n"
} }
Else{ Else{
return " Command Line: $commandline`n" + $text $obj.Message = "Suspicious Command Line"
} }
$obj.Command = $commandline
$obj.Results += $text
Write-Output $obj
} }
return "" return
} }
function Check-Regex($string,$regexes,$type){ function Check-Regex($string,$type){
$regextext="" # Local variable for return output $regextext="" # Local variable for return output
foreach ($regex in $regexes){ foreach ($regex in $regexes){
if ($regex.Type -eq $type) { # Type is 0 for Commands, 1 for services. Set in regexes.csv if ($regex.Type -eq $type) { # Type is 0 for Commands, 1 for services. Set in regexes.csv
if ($string -Match $regex.regex) { if ($string -Match $regex.regex) {
$regextext += " - " + $regex.String + "`n" $regextext += $regex.String + "`n"
} }
} }
} }
@ -422,11 +477,8 @@ function Check-Regex($string,$regexes,$type){
function Check-Obfu($string){ function Check-Obfu($string){
# Check for special characters in the command. Inspired by Invoke-Obfuscation: https://twitter.com/danielhbohannon/status/778268820242825216 # Check for special characters in the command. Inspired by Invoke-Obfuscation: https://twitter.com/danielhbohannon/status/778268820242825216
# There are many ways to do this, including regex. Need a way that doesn't kill the CPU.
# #
$obfutext="" # Local variable for return output $obfutext="" # Local variable for return output
$minpercent=.65 # minimum percentage of alphanumeric and common symbols
$maxbinary=.50 # Maximum percentage of zeros and ones
$lowercasestring=$string.ToLower() $lowercasestring=$string.ToLower()
$length=$lowercasestring.length $length=$lowercasestring.length
$noalphastring = $lowercasestring -replace "[a-z0-9/\;:|.]" $noalphastring = $lowercasestring -replace "[a-z0-9/\;:|.]"
@ -434,23 +486,41 @@ function Check-Obfu($string){
# Calculate the percent alphanumeric/common symbols # Calculate the percent alphanumeric/common symbols
if ($length -gt 0){ if ($length -gt 0){
$percent=(($length-$noalphastring.length)/$length) $percent=(($length-$noalphastring.length)/$length)
# Adjust minpercent for very short commands, to avoid triggering short warnings
if (($length/100) -lt $minpercent){
$minpercent=$minpercent-($minpercent)+($length/100)
}
if ($percent -lt $minpercent){ if ($percent -lt $minpercent){
$percent = "{0:P0}" -f $percent # Convert to a percent $percent = "{0:P0}" -f $percent # Convert to a percent
$obfutext += " - Possible command obfuscation: only $percent alphanumeric and common symbols`n" $obfutext += "Possible command obfuscation: only $percent alphanumeric and common symbols`n"
} }
# Calculate the percent of binary characters # Calculate the percent of binary characters
#$percent=(($length-$nobinarystring.length/$length)/$length)
$percent=(($nobinarystring.length-$length/$length)/$length) $percent=(($nobinarystring.length-$length/$length)/$length)
$binarypercent = 1-$percent $binarypercent = 1-$percent
if ($binarypercent -gt $maxbinary){ if ($binarypercent -gt $maxbinary){
#$binarypercent = 1-$percent #$binarypercent = 1-$percent
$binarypercent = "{0:P0}" -f $binarypercent # Convert to a percent $binarypercent = "{0:P0}" -f $binarypercent # Convert to a percent
$obfutext += " - Possible command obfuscation: $binarypercent zeroes and ones (possible numeric or binary encoding)`n" $obfutext += "Possible command obfuscation: $binarypercent zeroes and ones (possible numeric or binary encoding)`n"
} }
} }
return $obfutext return $obfutext
} }
function Check-Creator($command,$creator){
$creatortext="" # Local variable for return output
if ($creator){
if ($command -Match "powershell"){
if ($creator -Match "PSEXESVC"){
$creatortext += "PowerShell launched via PsExec: $creator`n"
}
ElseIf($creator -Match "WmiPrvSE"){
$creatortext += "PowerShell launched via WMI: $creator`n"
}
}
}
return $creatortext
}
function Remove-Spaces($string){ function Remove-Spaces($string){
# Changes this: Application : C:\Program Files (x86)\Internet Explorer\iexplore.exe # Changes this: Application : C:\Program Files (x86)\Internet Explorer\iexplore.exe
# to this: Application: C:\Program Files (x86)\Internet Explorer\iexplore.exe # to this: Application: C:\Program Files (x86)\Internet Explorer\iexplore.exe