[原创]K8Cscan插件之端口扫描C#源码

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主程序: K8Cscan 大型内网渗透自定义扫描器

https://www.cnblogs.com/k8gege/p/10519321.html

Cscan端口扫描插件源码

以下代码编译成netscan.dll,和Cscan.exe放在一起即可,大家可根据需要自行定制需扫描的端口。

当然也可以直接调用s.exe，但网上部分版本的s，启动多个时,S可能会崩溃或退出无结果返回。

再说调用DLL不会像调用s.exe那样占用资源，且会产生30个S扫描器进程(它不崩溃的话)

https://github.com/k8gege/K8CScan/blob/master/K8Cscan%20Moudle%20PortScan.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Text.RegularExpressions;
using System.Net.Sockets;
//Cscan 3.1 PortScan Moudle
namespace CscanDLL
{
public class scan
{
public static string run(string ip)
{
if (string.IsNullOrEmpty(ip))
return "";
else
{
if (K8CheckPort(ip, 21))
Console.Write(ip + "\t21 Open\r\n");
if (K8CheckPort(ip, 80))
Console.Write(ip + "\t80 Open\r\n");
if (K8CheckPort(ip, 1433))
Console.Write(ip + "\t1433 Open\r\n");
if (K8CheckPort(ip, 3306))
Console.Write(ip + "\t3306 Open\r\n");
if (K8CheckPort(ip, 1521))
Console.Write(ip + "\t1521 Open\r\n");
if (K8CheckPort(ip, 3389))
Console.Write(ip + "\t3389 Open\r\n");
} return "";
} private static bool K8CheckPort(string ip, int Port)
{
//int Port = 21;
IPAddress scanip = IPAddress.Parse(ip);
IPEndPoint point = new IPEndPoint(scanip, Port);
try
{
TcpClient tcp = new TcpClient();
tcp.Connect(point);
//Console.WriteLine(scanip + "\t" + Port + "\tOpen");
return true;
}
catch (Exception ex)
{
//Console.WriteLine(scanip + "\t" + Port + "\tClose");
return false;
}
} }
}