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secureX.ps1
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secureX.ps1
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<#PSScriptInfo
.VERSION 1.4.2
.GUID 134de175-8fd8-4938-9812-053ba39eed83
.AUTHOR HAO BAN/[email protected]
.COMPANYNAME
.COPYRIGHT
.TAGS
.LICENSEURI
.PROJECTURI
.ICONURI
.EXTERNALMODULEDEPENDENCIES
.REQUIREDSCRIPTS
.EXTERNALSCRIPTDEPENDENCIES
.RELEASENOTES
Creation Date: <11/08/2022>
Purpose/Change:
.PRIVATEDATA
.SYNOPSIS
.EXAMPLE
.DESCRIPTION secureX.ps1
#>
$SECUREX_CLIENT_ID = Get-Content .\init.conf | findstr SECUREX_CLIENT_ID | %{ $_.Split('=')[1]; } | foreach{ $_.ToString().Trim() }
$SECUREX_CLIENT_PASSWORD = Get-Content .\init.conf | findstr SECUREX_CLIENT_PASSWORD | %{ $_.Split('=')[1]; } | foreach{ $_.ToString().Trim() }
$TenantId = Get-Content .\init.conf | findstr TenantId | %{ $_.Split('=')[1]; } | foreach{ $_.ToString().Trim() }
$appId = Get-Content .\init.conf | findstr appId | %{ $_.Split('=')[1]; } | foreach{ $_.ToString().Trim() }
$appSecret = Get-Content .\init.conf | findstr appSecret | %{ $_.Split('=')[1]; } | foreach{ $_.ToString().Trim() }
function Threat_Response_authentication {
$oAuthUri = "https://visibility.amp.cisco.com/iroh/oauth2/token"
$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Authorization", "Basic $([System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($SECUREX_CLIENT_ID + ":" + $SECUREX_CLIENT_PASSWORD)))")
$headers.Add("Content-Type", "application/x-www-form-urlencoded")
$headers.Add("Accept", "application/json")
$authBody = @{
grant_type = 'client_credentials'
}
$authResponse = Invoke-RestMethod -Method Post -Uri $oAuthUri -Headers $headers -Body $authBody -ErrorAction Stop
$global:Threat_Response_token = $authResponse.access_token
$global:Threat_Response_tokenexpire = $authResponse.expires_in
}
function MDATP_authentication {
$resourceAppIdUri = 'https://api.securitycenter.microsoft.com'
$oAuthUri = "https://login.microsoftonline.com/$TenantId/oauth2/token"
$authBody = [Ordered] @{
resource = "$resourceAppIdUri"
client_id = "$appId"
client_secret = "$appSecret"
grant_type = 'client_credentials'
}
$authResponse = Invoke-RestMethod -Method Post -Uri $oAuthUri -Body $authBody -ErrorAction Stop
$global:MDATP_token = $authResponse.access_token
$global:MDATP_tokenexpire = $authResponse.expires_on
}
function SecureX-Investigation {
Threat_Response_authentication
Write-OutPut "SecureX Investigation: "
$headers = @{
'Content-Type' = 'application/json'
Accept = 'application/json'
Authorization = "Bearer $Threat_Response_token"
}
$body = ConvertTo-Json -InputObject @{ 'content' = $CONTENT }
$inspect_response = Invoke-WebRequest -Method Post -Uri "https://visibility.amp.cisco.com/iroh/iroh-inspect/inspect" -Headers $headers -Body $body -ErrorAction Stop
$headers = @{
'Content-Type' = 'application/json'
Accept = 'application/json'
Authorization = "Bearer $Threat_Response_token"
}
$body = $inspect_response.Content
$response = Invoke-WebRequest -Method Post -Uri "https://visibility.amp.cisco.com/iroh/iroh-enrich/observe/observables" -Headers $headers -Body $body -ErrorAction Stop
$results = $response.Content | ConvertFrom-Json
for($i=0;$i -le $results.data.length;$i++){
$module = $results.data[$i].module
if ( $module -eq "Talos Intelligence" ) {
Write-OutPut "*********************************************"
Write-OutPut "* Talos Intelligence Investigation Results: "
Write-OutPut "*********************************************"
foreach ( $talos_results in $results.data[$i].data.verdicts.docs ){
$ta_result = $talos_results.observable.value+" , "+$talos_results.disposition_name
if ( ($talos_results.disposition_name -eq "Malicious") -or ($talos_results.disposition_name -eq "Suspicious") ) { $enable_alert = $true }
Write-OutPut $ta_result
}
Write-OutPut ""
Write-OutPut ""
}
if ( ($module -eq "Umbrella") -and (![string]::IsNullOrEmpty($results.data[$i].data.sightings)) ) {
$title = "* Umbrella Investigation Results, " + $($results.data[$i].data.sightings.docs[0].description -split 'by', 0)[0] + "by:"
Write-OutPut "*********************************************"
Write-OutPut $title
Write-OutPut "*********************************************"
$_endpoint_list = @()
$endpoint_list = @()
foreach ($umbrella_results in $results.data[$i].data.sightings.docs){
$_endpoint = $($umbrella_results.description -split 'by', 0)[1]
$_endpoint_list += $_endpoint
}
$_endpoint_list = $_endpoint_list | sort -u
Write-OutPut $_endpoint_list
foreach ( $endpoint in $_endpoint_list ) {
if ( $endpoint -like '*(AD Users)' ) {
$regex = [regex]"\(\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*\)"
$fRegion_EmailAddress = $($regex.match($endpoint)).Value.trimstart("(").trimend(")")
$fRegion_DomainName = $($fRegion_EmailAddress -split '@',0)[1]
$GivenName = $($($($endpoint -split "\(" , 0)[0] -split "," , 0)[1] -split ' ', 0)[1]
$Surname = $($($endpoint -split "\(" , 0)[0] -split "," , 0)[0].Trim().trimstart("'")
# Write-OutPut "$($GivenName) $($Surname), $($fRegion_DomainName)"
$ADUser_Properties = Get-ADUser -Filter 'GivenName -eq $GivenName -and Surname -eq $Surname' -Server $(Get-ADDomainController -DomainName $fRegion_DomainName -Discover -NextClosestSite).Name -properties *
$SamAccountName = $ADUser_Properties.SamAccountName.ToLower()
$Recipient = $ADUser_Properties.DisplayName
$url = "https://api.securitycenter.microsoft.com/api/advancedqueries/run"
MDATP_authentication
$headers = @{
'Content-Type' = 'application/json'
Accept = 'application/json'
Authorization = "Bearer $MDATP_token"
}
$query = @"
DeviceNetworkEvents
| where RemoteUrl contains "$CONTENT" and InitiatingProcessAccountName == "$SamAccountName"
"@
$body = ConvertTo-Json -InputObject @{ 'Query' = $query }
$response = Invoke-WebRequest -Method POST -Uri $url -Headers $headers -Body $body -ErrorAction Stop
if ( ![string]::IsNullOrEmpty($(($response | ConvertFrom-Json).Results)) ) {
Write-OutPut "MDATP found the User $($Recipient) tried to access the URL"
$InitiatingProcessFileName = ($response | ConvertFrom-Json).Results.InitiatingProcessVersionInfoFileDescription
$Timestamp = ($response | ConvertFrom-Json).Results.Timestamp
$EmailBody = @"
Hello $Recipient,
Our security system detected you used $InitiatingProcessFileName to access [$CONTENT] at $Timestamp which is a Malicious/Phishing site. Please contact the Service Desk and change you AD account password immediately.
If you have any questions, please contact [email protected]
Thanks,
Enterprise Security Services
eHealth Saskatechewan
"@
if ( $enable_alert -eq $true) {
if ( ![string]::IsNullOrEmpty($ADUser_Properties.EmailAddress) ) {
Send-MailMessage -SmtpServer relay-partner.ehealthsask.ca -To $ADUser_Properties.EmailAddress -From "EMAILADDRESS" -Cc "EMAILADDRESS" -Subject "Security Alert" -Body $EmailBody
Write-OutPut "Alert Message has been sent to $($Recipient)"
}else{ Write-OutPut "$($Recipient) Email Address is not exist." }
}
} else { Write-OutPut "No related result was found in MDATP for $($Recipient)" }
}
if ( $endpoint -like '*(Anyconnect Roaming Client)' ) {
$endpoint_list += $($endpoint -split ' ', 0)[1].trimstart("'").trimend("'")
$HOSTNAME = $($endpoint -split ' ', 0)[1].trimstart("'").trimend("'")
$url = "https://api.securitycenter.microsoft.com/api/advancedqueries/run"
MDATP_authentication
$headers = @{
'Content-Type' = 'application/json'
Accept = 'application/json'
Authorization = "Bearer $MDATP_token"
}
$query = @"
DeviceInfo
| where DeviceName startswith "$HOSTNAME"
| summarize count() by DeviceId
"@
$body = ConvertTo-Json -InputObject @{ 'Query' = $query }
$response = Invoke-WebRequest -Method POST -Uri $url -Headers $headers -Body $body -ErrorAction Stop
$DeviceId = ($response | ConvertFrom-Json).Results.DeviceId
$query = @"
DeviceNetworkEvents
| where DeviceId == "$DeviceId" and RemoteUrl contains "$CONTENT"
| where Timestamp > ago(30d)
"@
$body = ConvertTo-Json -InputObject @{ 'Query' = $query }
$response = Invoke-WebRequest -Method POST -Uri $url -Headers $headers -Body $body -ErrorAction Stop
if ( ![string]::IsNullOrEmpty($(($response | ConvertFrom-Json).Results)) ) {
Write-OutPut "MDATP found the Endpoint $($HOSTNAME) tried to access the URL"
$UserPrincipalName = ($response | ConvertFrom-Json).Results.InitiatingProcessAccountUpn
if ( !([string]::IsNullOrEmpty($UserPrincipalName) -or [string]::IsNullOrWhiteSpace($UserPrincipalName)) ) {
$UserPrincipalName = ($response | ConvertFrom-Json).Results.InitiatingProcessAccountName
}
$InitiatingProcessFileName = ($response | ConvertFrom-Json).Results.InitiatingProcessVersionInfoFileDescription
$Timestamp = ($response | ConvertFrom-Json).Results.Timestamp
$computerDnsName = ($response | ConvertFrom-Json).Results.DeviceName
$DomainName = $($UserPrincipalName -split '@',0)[1]
$Identity = $($UserPrincipalName -split '@',0)[0]
$ADUser_Properties = Get-ADUser -Identity $Identity -Server $(Get-ADDomainController -DomainName $DomainName -Discover -NextClosestSite).Name -properties *
$Recipient = $ADUser_Properties.DisplayName
$EmailBody = @"
Hello $Recipient,
Our security system detected you used $InitiatingProcessFileName to access [$CONTENT] at $Timestamp which is a Malicious/Phishing site. Please contact the Service Desk and change you AD account password immediately.
If you have any questions, please contact [email protected]
Thanks,
Enterprise Security Services
eHealth Saskatechewan
"@
if ( $enable_alert -eq $true) {
if ( ![string]::IsNullOrEmpty($ADUser_Properties.EmailAddress) ) {
Send-MailMessage -SmtpServer relay-partner.ehealthsask.ca -To $ADUser_Properties.EmailAddress -From "EMAILADDRESS" -Cc "EMAILADDRESS" -Subject "Security Alert" -Body $EmailBody
Write-OutPut "Alert Message has been sent to $($HOSTNAME)"
}else{ Write-OutPut "$($Recipient) Email Address is not exist." }
}
} else { Write-OutPut "No related result was found in MDATP for HOST $($HOSTNAME)" }
}
}
Write-OutPut ""
Write-OutPut ""
}
if ( $module -eq "SMA Email" ) {
Write-OutPut "*********************************************"
Write-OutPut "* SMA Email Investigation Results, Following e-mail address were related to the URLs/Domains:"
Write-OutPut "*********************************************"
$Outgoing_list = @()
$Incoming_list = @()
for($j=0;$j -le $results.data[$i].data.sightings.docs.length;$j++){
if ($results.data[$i].data.sightings.docs[$j].description -match "Outgoing"){
$email_mid = foreach($key in $($results.data[$i].data.sightings.docs[$j].relations.related | where-Object {$_.type -eq "cisco_mid"})){$key.value}
$email_subject = foreach($key in $($results.data[$i].data.sightings.docs[$j].relations.related | where-Object {$_.type -eq "email_subject"})){$key.value}
$email_address = foreach($key in $($results.data[$i].data.sightings.docs[$j].relations.related | where-Object {$_.type -eq "email"})){$key.value}
$outgoing_array = $($email_address | Get-Unique), $($($email_mid -split '-')[0] | Get-Unique), $($email_subject | Get-Unique)
$Outgoing_list += ,$outgoing_array
}
if ($results.data[$i].data.sightings.docs[$j].description -match "Incoming"){
$email_mid = foreach($key in $($results.data[$i].data.sightings.docs[$j].relations.related | where-Object {$_.type -eq "cisco_mid"})){$key.value}
$email_subject = foreach($key in $($results.data[$i].data.sightings.docs[$j].relations.related | where-Object {$_.type -eq "email_subject"})){$key.value}
$email_address = foreach($key in $($results.data[$i].data.sightings.docs[$j].relations.related | where-Object {$_.type -eq "email"})){$key.value}
$incoming_array = $($email_address | Get-Unique), $($($email_mid -split '-')[0] | Get-Unique), $($email_subject | Get-Unique)
$Incoming_list += ,$incoming_array
}
}
Write-OutPut "Incoming Email List:"
Write-OutPut $Incoming_list | % { $_ -join ','}
Write-OutPut "--------------------------------------------------------------------"
Write-OutPut "Outgoing Email List:"
Write-OutPut $Outgoing_list | % { $_ -join ','}
Write-OutPut "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
}
}
}
$CONTENT = $Args[0]
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls -bor [Net.SecurityProtocolType]::Tls11 -bor [Net.SecurityProtocolType]::Tls12
SecureX-Investigation