How to Implement Ransomware Target in ns3

To implement the ransomware target in ns3 has to generate the network scenario where specific nodes or targets are doing a deal and demonstration the ransomware-like behaviour. Here is the detailed procedure on how to simulate a ransomware target in ns3:

Step-by-Step Implementation:

Step 1: Set Up ns3 Environment

If you haven’t already, set up your ns3 environment:

1. Download ns3: Install ns3
2. Install ns3: Follow the installation instructions for your operating system.
3. Familiarize with ns3 basics: Recognize how to create nodes, set up channels, and run basic simulations.

Step 2: Define Network Topology

Generate the basic network topology where nodes represent devices in a network. Some nodes will act as ransomware targets.

#include “ns3/core-module.h”

#include “ns3/network-module.h”

#include “ns3/internet-module.h”

#include “ns3/point-to-point-module.h”

#include “ns3/applications-module.h”

using namespace ns3;

NS_LOG_COMPONENT_DEFINE(“RansomwareSimulation”);

int main(int argc, char *argv[])

{

// Create nodes

NodeContainer nodes;

nodes.Create(6); // Create 6 nodes

// Create point-to-point links

PointToPointHelper pointToPoint;

pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“5Mbps”));

pointToPoint.SetChannelAttribute(“Delay”, StringValue(“2ms”));

NetDeviceContainer devices;

for (uint32_t i = 0; i < nodes.GetN() – 1; ++i)

{

devices.Add(pointToPoint.Install(nodes.Get(i), nodes.Get(i + 1)));

}

// Install internet stack

InternetStackHelper stack;

stack.Install(nodes);

// Assign IP addresses

Ipv4AddressHelper address;

address.SetBase(“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces = address.Assign(devices);

// Install applications

uint16_t port = 9;

// Install a simple application to simulate ransomware

for (uint32_t i = 1; i < nodes.GetN(); ++i)

{

// Ransomware target nodes

UdpEchoServerHelper echoServer(port);

ApplicationContainer serverApps = echoServer.Install(nodes.Get(i));

serverApps.Start(Seconds(1.0));

serverApps.Stop(Seconds(10.0));

UdpEchoClientHelper echoClient(interfaces.GetAddress(i), port);

echoClient.SetAttribute(“MaxPackets”, UintegerValue(1));

echoClient.SetAttribute(“Interval”, TimeValue(Seconds(1.0)));

echoClient.SetAttribute(“PacketSize”, UintegerValue(1024));

ApplicationContainer clientApps = echoClient.Install(nodes.Get(0));

clientApps.Start(Seconds(2.0));

clientApps.Stop(Seconds(10.0));

}

Simulator::Run();

Simulator::Destroy();

return 0;

}

Step 3: Simulate Ransomware Behavior

To simulate ransomware behaviour, we can create a custom application in ns3 that mimics the features of a ransomware attack:

• Scanning for Vulnerabilities: For vulnerable nodes we need to emulate the ransomware scanning the network.
• Encrypting Files: Simulate the encryption of files by affecting node behavior or data.
• Demanding Ransom: Simulate the demand for ransom by sending a message to the affected node.

Step 4: Implement Custom Ransomware Application

Create a custom application class in ns3 to simulate ransomware behaviour:

#include “ns3/application.h”

#include “ns3/socket.h”

#include “ns3/ipv4-address.h”

#include “ns3/inet-socket-address.h”

#include “ns3/log.h”

using namespace ns3;

class RansomwareApp : public Application

{

public:

static TypeId GetTypeId()

{

static TypeId tid = TypeId(“ns3::RansomwareApp”)

.SetParent<Application>()

.SetGroupName(“Tutorial”)

.AddConstructor<RansomwareApp>();

return tid;

}

RansomwareApp()

{

m_socket = 0;

m_target = Ipv4Address(“255.255.255.255”);

m_port = 9;

}

void Setup(Ptr<Socket> socket, Ipv4Address target, uint16_t port)

{

m_socket = socket;

m_target = target;

m_port = port;

}

void StartApplication() override

{

m_socket->Bind();

m_socket->Connect(InetSocketAddress(m_target, m_port));

SendPacket();

}

void StopApplication() override

{

if (m_socket)

{

m_socket->Close();

}

}

private:

void SendPacket()

{

Ptr<Packet> packet = Create<Packet>(1024); // Simulate ransomware payload

m_socket->Send(packet);

if (Simulator::Now().GetSeconds() < 10.0)

{

Simulator::Schedule(Seconds(1.0), &RansomwareApp::SendPacket, this);

}

}

Ptr<Socket> m_socket;

Ipv4Address m_target;

uint16_t m_port;

};

// In main function, use the RansomwareApp

int main(int argc, char *argv[])

{

NodeContainer nodes;

nodes.Create(2);

InternetStackHelper stack;

stack.Install(nodes);

PointToPointHelper pointToPoint;

pointToPoint.SetDeviceAttribute(“DataRate”, StringValue(“5Mbps”));

pointToPoint.SetChannelAttribute(“Delay”, StringValue(“2ms”));

NetDeviceContainer devices;

devices = pointToPoint.Install(nodes);

Ipv4AddressHelper address;

address.SetBase(“10.1.1.0”, “255.255.255.0”);

Ipv4InterfaceContainer interfaces = address.Assign(devices);

Ptr<Socket> ns3TcpSocket = Socket::CreateSocket(nodes.Get(0), TcpSocketFactory::GetTypeId());

Ptr<RansomwareApp> ransomwareApp = CreateObject<RansomwareApp>();

ransomwareApp->Setup(ns3TcpSocket, interfaces.GetAddress(1), 9);

nodes.Get(0)->AddApplication(ransomwareApp);

ransomwareApp->SetStartTime(Seconds(1.0));

ransomwareApp->SetStopTime(Seconds(10.0));

Simulator::Run();

Simulator::Destroy();

return 0;

}

Step 5: Run the Simulation

Compile and run the simulation to observe the behaviour of the ransomware target nodes

Finally, we all know and understand about how the ransomware target will perform and evaluated in ns3 implementation tool and also we support all kinds of ransomware target information.

We are accountable for conducting project performance on Ransomware Target in ns3tool. If you encounter any challenges, please contact ns3simulation.com for assistance.