Initial commit of NomadScanner stealth portscanner

2026-06-06 15:34:31 +00:00 · 2025-04-25 16:38:50 +02:00
commit e5cc940a86
6 changed files with 538 additions and 0 deletions
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+MIT License
+
+Copyright (c) 2025 Tamás Péter
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
@@ -0,0 +1,31 @@
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@@ -0,0 +1,101 @@
+# 🕵️ NomadScanner - Stealth Portscanner for Red Teams
+
+**NomadScanner** is a stealthy, memory-only Windows port scanner designed for red team operations, evasion testing, and internal assessments. It uses randomized HTTP probes, domain fronting, in-memory result handling, and optional payloads for scanning without dropping files or generating noisy output.
+
+---
+
+## ✨ Features
+
+- 🔧 **Memory-only output** (no stdout or file writes)
+- 🥟 **Multithreaded scanning** with jittered delays
+- 🌐 **IPv4 & IPv6** support via getaddrinfo
+- 🔎 **Randomized HTTP probes** (GET, HEAD, OPTIONS)
+- 👥 **Domain fronting** (custom Host headers)
+- 📁 **Custom payload support** (HTTP template style)
+- 📄 **Banner grabbing** for fingerprinting
+- 📊 **Port exclusion** and range support
+- 👚 **Hostname spoofing**
+- 🔬 **MAC spoof stub** (for later extension)
+- 🔐 **XOR-based string obfuscation function**
+- 📊 **No console window** — results shown via `MessageBoxA`
+
+---
+
+## 🚀 Usage
+
+```bash
+NomadScanner.exe <target_ip> <ports> [payload.txt] [exclude_ports] [fronting_host]
+```
+
+### 🔍 Examples
+
+```bash
+# Basic scan
+NomadScanner.exe 127.0.0.1 80,443
+
+# Scan port range with exclusions
+NomadScanner.exe 10.0.0.1 1-1024 payload.txt 135,445
+
+# Domain fronting example
+NomadScanner.exe 10.0.0.5 80-90 payload.txt 135,445 www.microsoft.com
+```
+
+---
+
+## 📆 Payload Template (Optional)
+
+If using a `payload.txt` file, use placeholders:
+
+```http
+GET /status HTTP/1.1\r\nHost: %s\r\nUser-Agent: %s\r\n\r\n
+```
+
+Where:
+- `%s` → replaced with fronting domain or IP
+- `%s` → replaced with randomized `User-Agent`
+
+---
+
+## 💠 Build Instructions
+
+### 💻 Visual Studio (Recommended)
+
+- Open `NomadScanner.sln`
+- Set configuration to `Release x64`
+- Build → Output: `x64\Release\NomadScanner.exe`
+
+### 🔧 MinGW (alternative)
+
+```bash
+gcc -mwindows -s -O3 -o NomadScanner.exe main.c -lws2_32 -liphlpapi
+```
+
+---
+
+## 📁 Recommended Files to Include
+
+```
+NomadScanner/
+├── main.c
+├── NomadScanner.sln
+├── NomadScanner.vcxproj
+├── NomadScanner.vcxproj.filters
+├── payload.txt               # optional
+├── .gitignore
+├── LICENSE
+└── README.md
+```
+
+> 🔒 Exclude: `.vs/`, `*.exe`, `*.obj`, `x64/`, `Debug/`, `Release/`
+
+---
+
+## ⚖️ Legal & Ethical Use
+
+NomadScanner is for **authorized use only** — including red teaming, pentesting, lab research, and education. **Do not use this on systems without explicit permission.**
+
+---
+
+## 📄 License
+
+MIT License – see [LICENSE](LICENSE)
@@ -0,0 +1,226 @@
+#define _CRT_SECURE_NO_WARNINGS
+#include <WinSock2.h>
+#include <ws2tcpip.h>
+#include <windows.h>
+#include <iphlpapi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <iptypes.h>
+
+#pragma comment(lib, "ws2_32.lib")
+#pragma comment(lib, "iphlpapi.lib")
+
+#define MAX_THREADS 64
+
+WSADATA wsa;
+int totalScanned = 0, totalOpen = 0, totalClosed = 0;
+int timeout = 1000, threadCount = 20;
+int delayMin = 100, delayMax = 2000;
+char payloadTemplate[1024] = { 0 };
+char* excludedPortsStr = NULL;
+char* domainFront = NULL;
+char outputBuffer[8192] = { 0 };
+
+const char* user_agents[] = {
+    "Mozilla/5.0 (Windows NT 10.0; Win64; x64)",
+    "curl/7.68.0",
+    "Wget/1.20.3 (linux-gnu)",
+    "python-requests/2.25.1"
+};
+
+const char* http_methods[] = { "GET", "HEAD", "OPTIONS" };
+
+void xor (char* data, size_t len, char key) {
+    for (size_t i = 0; i < len; i++) {
+        data[i] ^= key;
+    }
+}
+
+BOOL IsExcludedPort(int port) {
+    if (!excludedPortsStr) return FALSE;
+    char* copy = _strdup(excludedPortsStr);
+    char* token = strtok(copy, ",");
+    while (token) {
+        if (strchr(token, '-')) {
+            int start, end;
+            sscanf(token, "%d-%d", &start, &end);
+            if (port >= start && port <= end) {
+                free(copy);
+                return TRUE;
+            }
+        }
+        else {
+            if (atoi(token) == port) {
+                free(copy);
+                return TRUE;
+            }
+        }
+        token = strtok(NULL, ",");
+    }
+    free(copy);
+    return FALSE;
+}
+
+void SetHostnameSpoof() {
+    SetComputerNameA("CORP-WINPC01");
+}
+
+void SetMacSpoof() {
+    // Stub — requires driver-level tools or registry patch with reboot
+}
+
+void AppendToBuffer(const char* format, ...) {
+    va_list args;
+    va_start(args, format);
+    size_t len = strlen(outputBuffer);
+    vsnprintf(outputBuffer + len, sizeof(outputBuffer) - len - 1, format, args);
+    va_end(args);
+}
+
+int InitWSAContext() {
+    return WSAStartup(MAKEWORD(2, 2), &wsa);
+}
+
+BOOL IsAlive(const char* ip, DWORD port) {
+    struct addrinfo hints, * res = NULL;
+    char portStr[8];
+    SOCKET s;
+
+    if (IsExcludedPort(port)) return FALSE;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+
+    snprintf(portStr, sizeof(portStr), "%lu", port);
+    if (getaddrinfo(ip, portStr, &hints, &res) != 0) return FALSE;
+
+    s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+    if (s == INVALID_SOCKET) {
+        freeaddrinfo(res);
+        return FALSE;
+    }
+
+    setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof(timeout));
+    setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, (const char*)&timeout, sizeof(timeout));
+
+    if (connect(s, res->ai_addr, (int)res->ai_addrlen) != 0) {
+        closesocket(s);
+        freeaddrinfo(res);
+        return FALSE;
+    }
+
+    const char* method = http_methods[rand() % (sizeof(http_methods) / sizeof(http_methods[0]))];
+    const char* ua = user_agents[rand() % (sizeof(user_agents) / sizeof(user_agents[0]))];
+    const char* host = domainFront ? domainFront : ip;
+
+    char message[1024];
+    if (strlen(payloadTemplate) > 0) {
+        snprintf(message, sizeof(message), payloadTemplate, ip, port, ua);
+    }
+    else {
+        snprintf(message, sizeof(message), "%s / HTTP/1.1\r\nHost: %s\r\nUser-Agent: %s\r\n\r\n", method, host, ua);
+    }
+    send(s, message, strlen(message), 0);
+
+    char banner[256];
+    int len = recv(s, banner, sizeof(banner) - 1, 0);
+    if (len > 0) {
+        banner[len] = '\0';
+        AppendToBuffer("[+] Banner from %s:%lu -> %.50s\n", ip, port, banner);
+    }
+
+    closesocket(s);
+    freeaddrinfo(res);
+    return TRUE;
+}
+
+DWORD WINAPI ScanPort(LPVOID param) {
+    DWORD port = *(DWORD*)param;
+    CHAR ip[128];
+    strncpy(ip, (CHAR*)((char*)param + sizeof(DWORD)), 127);
+    InterlockedIncrement((volatile LONG*)&totalScanned);
+
+    if (IsAlive(ip, port)) {
+        InterlockedIncrement((volatile LONG*)&totalOpen);
+        AppendToBuffer("[+] %s:%lu is open\n", ip, port);
+    }
+    else {
+        InterlockedIncrement((volatile LONG*)&totalClosed);
+        AppendToBuffer("[-] %s:%lu is closed\n", ip, port);
+    }
+
+    Sleep(delayMin + rand() % (delayMax - delayMin));
+    free(param);
+    return 0;
+}
+
+void Scan(char* ip, char* port_list) {
+    char* token = strtok(port_list, ",");
+    HANDLE threads[MAX_THREADS];
+    int active = 0;
+
+    while (token) {
+        int start, end;
+        if (strchr(token, '-')) {
+            sscanf(token, "%d-%d", &start, &end);
+        }
+        else {
+            start = end = atoi(token);
+        }
+
+        for (int port = start; port <= end; port++) {
+            if (IsExcludedPort(port)) continue;
+            DWORD* data = malloc(sizeof(DWORD) + 128);
+            *data = port;
+            strncpy((char*)(data + 1), ip, 127);
+            threads[active++] = CreateThread(NULL, 0, ScanPort, data, 0, NULL);
+
+            if (active >= threadCount) {
+                WaitForMultipleObjects(active, threads, TRUE, INFINITE);
+                for (int i = 0; i < active; i++) CloseHandle(threads[i]);
+                active = 0;
+            }
+        }
+        token = strtok(NULL, ",");
+    }
+
+    if (active > 0) {
+        WaitForMultipleObjects(active, threads, TRUE, INFINITE);
+        for (int i = 0; i < active; i++) CloseHandle(threads[i]);
+    }
+}
+
+int main(int argc, char** argv) {
+    srand((unsigned int)time(NULL));
+    SetHostnameSpoof();
+    SetMacSpoof();
+
+    if (argc < 3) return 0;
+
+    if (argc > 3) {
+        FILE* f = fopen(argv[3], "r");
+        if (f) {
+            fread(payloadTemplate, 1, sizeof(payloadTemplate) - 1, f);
+            fclose(f);
+        }
+    }
+
+    if (argc > 4) excludedPortsStr = _strdup(argv[4]);
+    if (argc > 5) domainFront = _strdup(argv[5]);
+
+    if (InitWSAContext() != 0) return 1;
+
+    DWORD startTime = GetTickCount();
+    Scan(argv[1], argv[2]);
+    DWORD elapsed = GetTickCount() - startTime;
+
+    AppendToBuffer("\n=== Scan Summary ===\n");
+    AppendToBuffer("Total: %d\nOpen: %d\nClosed: %d\nTime: %.2fs\n", totalScanned, totalOpen, totalClosed, elapsed / 1000.0);
+    MessageBoxA(NULL, outputBuffer, "Scan Results", MB_OK);
+
+    WSACleanup();
+    return 0;
+}