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</code></pre> <p><strong>Step 2: Obfuscating the String</strong> Most AVs still scan for the string <code>"VirtualAllocEx"</code> in the <code>.rdata</code> section. We need to decrypt it on the stack. Use a simple XOR loop to hide the API name.</p> <p><em>(Continue with full tutorial...)</em></p> <p><strong>Conclusion:</strong> By combining dynamic resolution with indirect syscalls, you reduce your forensic footprint. Stay tuned for next week when we implement a custom shellcode loader.</p> <pre><code> ---
typedef LPVOID (WINAPI *pVirtualAllocEx)(HANDLE, LPVOID, SIZE_T, DWORD, DWORD);
Learn how modern malware avoids static detection by resolving API calls dynamically at runtime. A practical guide for Red Teamers on 1hack.us. 1hack.us
Instead of linking against kernel32.lib , we define a function pointer type and resolve the address at runtime.
LPVOID grab_alloc(HANDLE hProc, SIZE_T size) pVirtualAllocEx myAlloc = (pVirtualAllocEx)GetProcAddress(GetModuleHandle("kernel32.dll"), "VirtualAllocEx"); return myAlloc(hProc, NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE); Stay tuned for next week when we implement
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[ Exploit the Feed ] or [ Start Breaking Things ] Part 2: Sample Blog Post (SEO Optimized) Title: Bypassing Windows Defender: Dynamic API Resolution in C LPVOID grab_alloc(HANDLE hProc
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