302 lines
13 KiB
C#
302 lines
13 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Management;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Runtime.InteropServices;
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using winPEAS.Helpers;
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namespace winPEAS.Info.NetworkInfo
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{
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class NetworkInfoHelper
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{
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[DllImport("IpHlpApi.dll")]
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[return: MarshalAs(UnmanagedType.U4)]
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internal static extern int GetIpNetTable(IntPtr pIpNetTable, [MarshalAs(UnmanagedType.U4)]ref int pdwSize, bool bOrder);
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[DllImport("IpHlpApi.dll", SetLastError = true, CharSet = CharSet.Auto)]
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internal static extern int FreeMibTable(IntPtr plpNetTable);
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[StructLayout(LayoutKind.Sequential)]
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internal struct MIB_IPNETROW
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{
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[MarshalAs(UnmanagedType.U4)]
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public int dwIndex;
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[MarshalAs(UnmanagedType.U4)]
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public int dwPhysAddrLen;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac0;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac1;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac2;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac3;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac4;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac5;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac6;
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[MarshalAs(UnmanagedType.U1)]
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public byte mac7;
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[MarshalAs(UnmanagedType.U4)]
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public int dwAddr;
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[MarshalAs(UnmanagedType.U4)]
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public int dwType;
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}
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public enum ArpEntryType
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{
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Other = 1,
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Invalid = 2,
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Dynamic = 3,
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Static = 4,
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}
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public const int ERROR_INSUFFICIENT_BUFFER = 122;
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public static List<Dictionary<string, string>> GetNetCardInfo()
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{
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List<Dictionary<string, string>> results = new List<Dictionary<string, string>>();
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Dictionary<int, Dictionary<string, string>> adapters = new Dictionary<int, Dictionary<string, string>>();
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try
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{
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foreach (NetworkInterface netElement in NetworkInterface.GetAllNetworkInterfaces())
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{
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Dictionary<string, string> card = new Dictionary<string, string>() {
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{ "Index", netElement.GetIPProperties().GetIPv4Properties().Index.ToString() },
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{ "Name", netElement.Name },
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{ "PysicalAddr", "" },
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{ "DNSs", String.Join(", ", netElement.GetIPProperties().DnsAddresses) },
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{ "Gateways", "" },
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{ "IPs", "" },
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{ "Netmasks", "" },
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{ "arp", "" }
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};
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card["PysicalAddrIni"] = netElement.GetPhysicalAddress().ToString();
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for (int i = 0; i < card["PysicalAddrIni"].Length; i += 2)
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card["PysicalAddr"] += card["PysicalAddrIni"].Substring(i, 2) + ":";
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foreach (GatewayIPAddressInformation address in netElement.GetIPProperties().GatewayAddresses.Reverse()) //Reverse so first IPv4
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card["Gateways"] += address.Address + ", ";
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foreach (UnicastIPAddressInformation ip in netElement.GetIPProperties().UnicastAddresses.Reverse())
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{ //Reverse so first IPv4
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card["IPs"] += ip.Address.ToString() + ", ";
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card["Netmasks"] += ip.IPv4Mask.ToString() + ", ";
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}
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//Delete last separator
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if (card["PysicalAddr"].Length > 0)
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card["PysicalAddr"] = card["PysicalAddr"].Remove(card["PysicalAddr"].Length - 1);
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if (card["Gateways"].Length > 0)
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card["Gateways"] = card["Gateways"].Remove(card["Gateways"].Length - 2);
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if (card["IPs"].Length > 0)
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card["IPs"] = card["IPs"].Remove(card["IPs"].Length - 2);
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if (card["Netmasks"].Length > 0)
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card["Netmasks"] = card["Netmasks"].Remove(card["Netmasks"].Length - 2);
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adapters[netElement.GetIPProperties().GetIPv4Properties().Index] = card;
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}
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//return results;
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// GET ARP values
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int bytesNeeded = 0;
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int result = GetIpNetTable(IntPtr.Zero, ref bytesNeeded, false);
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// call the function, expecting an insufficient buffer.
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if (result != ERROR_INSUFFICIENT_BUFFER)
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{
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Console.WriteLine(" [X] Exception: {0}", result);
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}
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IntPtr buffer = IntPtr.Zero;
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// allocate sufficient memory for the result structure
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buffer = Marshal.AllocCoTaskMem(bytesNeeded);
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result = GetIpNetTable(buffer, ref bytesNeeded, false);
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if (result != 0)
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{
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Console.WriteLine(" [X] Exception allocating buffer: {0}", result);
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}
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// now we have the buffer, we have to marshal it. We can read the first 4 bytes to get the length of the buffer
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int entries = Marshal.ReadInt32(buffer);
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// increment the memory pointer by the size of the int
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IntPtr currentBuffer = new IntPtr(buffer.ToInt64() + Marshal.SizeOf(typeof(int)));
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// allocate a list of entries
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List<MIB_IPNETROW> arpEntries = new List<MIB_IPNETROW>();
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// cycle through the entries
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for (int index = 0; index < entries; index++)
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{
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arpEntries.Add((MIB_IPNETROW)Marshal.PtrToStructure(new IntPtr(currentBuffer.ToInt64() + (index * Marshal.SizeOf(typeof(MIB_IPNETROW)))), typeof(MIB_IPNETROW)));
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}
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// sort the list by interface index
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List<MIB_IPNETROW> sortedARPEntries = arpEntries.OrderBy(o => o.dwIndex).ToList();
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int currentIndexAdaper = -1;
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foreach (MIB_IPNETROW arpEntry in sortedARPEntries)
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{
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int indexAdapter = arpEntry.dwIndex;
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if (!adapters.ContainsKey(indexAdapter))
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{
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Console.WriteLine("Error: No interface found with Index " + arpEntry.dwIndex.ToString());
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continue;
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}
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currentIndexAdaper = indexAdapter;
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IPAddress ipAddr = new IPAddress(BitConverter.GetBytes(arpEntry.dwAddr));
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byte[] macBytes = new byte[] { arpEntry.mac0, arpEntry.mac1, arpEntry.mac2, arpEntry.mac3, arpEntry.mac4, arpEntry.mac5 };
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string physAddr = BitConverter.ToString(macBytes);
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ArpEntryType entryType = (ArpEntryType)arpEntry.dwType;
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adapters[arpEntry.dwIndex]["arp"] += $" {ipAddr,-22}{physAddr,-22}{entryType}\n";
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}
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FreeMibTable(buffer);
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}
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catch (Exception ex)
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{
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Beaprint.PrintException(ex.Message);
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}
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results = adapters.Values.ToList();
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return results;
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}
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public static List<List<string>> GetNetConnections()
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{
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List<List<string>> results = new List<List<string>>();
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try
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{
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var props = IPGlobalProperties.GetIPGlobalProperties();
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results.Add(new List<string>() { "Proto", "Local Address", "Foreign Address", "State" });
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//foreach (var conn in props.GetActiveTcpConnections())
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// results.Add(new List<string>() { "TCP", conn.LocalEndPoint.ToString(), conn.RemoteEndPoint.ToString(), conn.State.ToString() });
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foreach (var listener in props.GetActiveTcpListeners())
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{
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bool repeated = false;
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foreach(List<string> inside_entry in results)
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{
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if (inside_entry.SequenceEqual(new List<string>() { "TCP", listener.ToString(), "", "Listening" }))
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repeated = true;
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}
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if (! repeated)
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results.Add(new List<string>() { "TCP", listener.ToString(), "", "Listening" });
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}
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foreach (var listener in props.GetActiveUdpListeners())
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{
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bool repeated = false;
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foreach (List<string> inside_entry in results)
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{
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if (inside_entry.SequenceEqual(new List<string>() { "UDP", listener.ToString(), "", "Listening" }))
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repeated = true;
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}
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if (!repeated)
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results.Add(new List<string>() { "UDP", listener.ToString(), "", "Listening" });
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}
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}
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catch (Exception ex)
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{
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Beaprint.PrintException(ex.Message);
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}
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return results;
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}
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// https://stackoverflow.com/questions/3567063/get-a-list-of-all-unc-shared-folders-on-a-local-network-server
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// v2: https://stackoverflow.com/questions/6227892/reading-share-permissions-in-c-sharp
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public static List<Dictionary<string, string>> GetNetworkShares(string pcname)
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{
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List<Dictionary<string, string>> results = new List<Dictionary<string, string>>();
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try
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{
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ManagementClass manClass = new ManagementClass(@"\\" + pcname + @"\root\cimv2:Win32_Share"); //get shares
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foreach (ManagementObject objShare in manClass.GetInstances())
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{
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string permStr = "";
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try
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{
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//get the access values you have
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ManagementBaseObject result = objShare.InvokeMethod("GetAccessMask", null, null);
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//value meanings: http://msdn.microsoft.com/en-us/library/aa390438(v=vs.85).aspx
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var currentPerm = Convert.ToInt32(result.Properties["ReturnValue"].Value);
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permStr = PermissionsHelper.PermInt2Str(currentPerm);
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}
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catch (ManagementException)
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{
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permStr = ""; //no permissions are set on the share
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}
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Dictionary<string, string> share = new Dictionary<string, string> { };
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share["Name"] = $"{objShare.Properties["Name"].Value}";
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share["Path"] = $"{objShare.Properties["Path"].Value}";
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share["Permissions"] = permStr;
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results.Add(share);
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}
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}
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catch (Exception ex)
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{
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Beaprint.PrintException(ex.Message);
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}
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return results;
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}
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//From Seatbelt
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public static List<Dictionary<string, string>> GetDNSCache()
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{
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List<Dictionary<string, string>> results = new List<Dictionary<string, string>>();
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try
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{
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using (ManagementObjectSearcher wmiData = new ManagementObjectSearcher(@"root\standardcimv2", "SELECT * FROM MSFT_DNSClientCache"))
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{
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using (ManagementObjectCollection data = wmiData.Get())
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{
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foreach (ManagementObject result in data)
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{
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Dictionary<string, string> dnsEntry = new Dictionary<string, string>();
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string entry = $"{result["Entry"]}";
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string name = $"{result["Name"]}";
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string dataDns = $"{result["Data"]}";
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dnsEntry["Entry"] = (entry.Length > 33) ? "..." + result["Entry"].ToString().Substring(entry.Length - 32) : entry;
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dnsEntry["Name"] = (name.Length > 33) ? "..." + name.Substring(name.Length - 32) : name;
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dnsEntry["Data"] = (dataDns.Length > 33) ? "..." + dataDns.Substring(dataDns.Length - 32) : dataDns;
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results.Add(dnsEntry);
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}
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}
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}
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}
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catch (ManagementException ex) when (ex.ErrorCode == ManagementStatus.InvalidNamespace)
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{
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Console.WriteLine(" [X] 'MSFT_DNSClientCache' WMI class unavailable (minimum supported versions of Windows: 8/2012)", ex.Message);
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}
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catch (Exception ex)
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{
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Beaprint.PrintException(ex.Message);
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}
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return results;
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}
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}
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}
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