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Update eventid 1 to handle sysmon v8.00 schema #7

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Update eventid 1 to handle sysmon v8.00 schema #7

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3e02de8
update to handle sysmon v8.00
tomstott Jul 20, 2018
f25c7be
Update DeepWhite-collector.ps1
tomstott Jul 20, 2018
1bef617
DeepBlue.ps1 sysmon eventid 1 update
tomstott Jul 20, 2018
e87c65b
Updated logic for Sysmon v8 ID6&7
tomstott Jul 20, 2018
8866ac8
updated id 7 for sysmon v8 schema change
tomstott Jul 20, 2018
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37 changes: 28 additions & 9 deletions DeepBlue.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -276,8 +276,14 @@ function Main {
ElseIf ($logname -eq "Sysmon"){
# Check command lines
if ($event.id -eq 1){
if ($eventXML.Event.EventData.Data.Count -le 16){
$creator=$eventXML.Event.EventData.Data[14]."#text"
$commandline=$eventXML.Event.EventData.Data[4]."#text"
}
Else {
$creator=$eventXML.Event.EventData.Data[19]."#text"
$commandline=$eventXML.Event.EventData.Data[9]."#text"
}
if ($commandline){
Check-Command
}
Expand All @@ -287,15 +293,28 @@ function Main {
# 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"){
$obj.Message="Unsigned Image (DLL)"
$image=$eventXML.Event.EventData.Data[3]."#text"
$imageload=$eventXML.Event.EventData.Data[4]."#text"
# $hash=$eventXML.Event.EventData.Data[5]."#text"
$obj.Command=$imageload
$obj.Results= "Loaded by: $image"
Write-Output $obj
}
if ($event.Properties.Count -lt 14){
if ($eventXML.Event.EventData.Data[6]."#text" -eq "false"){
$obj.Message="Unsigned Image (DLL)"
$image=$eventXML.Event.EventData.Data[3]."#text"
$imageload=$eventXML.Event.EventData.Data[4]."#text"
# $hash=$eventXML.Event.EventData.Data[5]."#text"
$obj.Command=$imageload
$obj.Results= "Loaded by: $image"
Write-Output $obj
}
}
Else{
if ($eventXML.Event.EventData.Data[11]."#text" -eq "false"){
$obj.Message="Unsigned Image (DLL)"
$image=$eventXML.Event.EventData.Data[4]."#text"
$imageload=$eventXML.Event.EventData.Data[5]."#text"
# $hash=$eventXML.Event.EventData.Data[10]."#text"
$obj.Command=$imageload
$obj.Results= "Loaded by: $image"
Write-Output $obj
}
}
}
}
}
Expand Down
29 changes: 24 additions & 5 deletions DeepWhite-collector.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -2,19 +2,38 @@
$events = get-winevent @{logname="Microsoft-Windows-Sysmon/Operational";id=1,6,7}
ForEach ($event in $events) {
if ($event.id -eq 1){ # Process creation
$path=$event.Properties[3].Value # Full path of the file
$hash=$event.Properties[11].Value # Hashes

if ($event.Properties.Count -le 16){
$path=$event.Properties[3].Value # Full path of the file
$hash=$event.Properties[11].Value # Hashes
}
Else {
$path=$event.Properties[4].Value # Full path of the file
$hash=$event.Properties[16].Value # Hashes
}
}
Else{
# Hash and path are part of the message field in Sysmon events 6 and 7. Need to parse the XML
$eventXML = [xml]$event.ToXml()
If ($event.id -eq 6){ # Driver (.sys) load
$path=$eventxml.Event.EventData.Data[1]."#text" # Full path of the file
if ($event.Properties.Count -le 6){
$path=$eventXML.Event.EventData.Data[1]."#text" # Full path of the file
$hash=$eventXML.Event.EventData.Data[2]."#text" # Hashes
}
Else{
$path=$eventXML.Event.EventData.Data[2]."#text" # Full path of the file
$hash=$eventXML.Event.EventData.Data[3]."#text" # Hashes
}
}
ElseIf ($event.id -eq 7){ # Image (.dll) load
$path=$eventxml.Event.EventData.Data[4]."#text" # Full path of the file
if ($event.Properties.Count -lt 14){
$path=$eventXML.Event.EventData.Data[4]."#text" # Full path of the file
$hash=$eventXML.Event.EventData.Data[5]."#text" # Hashes
}
Else{
$path=$eventXML.Event.EventData.Data[5]."#text" # Full path of the file
$hash=$eventXML.Event.EventData.Data[10]."#text" # Hashes
}
}
Else{
Out-Host "Logic error 1, should not reach here..."
Expand All @@ -35,4 +54,4 @@ ForEach ($event in $events) {
Else{
Out-Host "No SHA256 hash found. Ensure Sysmon is creating SHA256 hashes"
}
}
}