How to Start Internet Attack Projects in OMNeT++

To start internet attack projects in OMNeT++, we follow these structured steps.

Steps to Start Internet Attack Projects in OMNeT++

  1. Understand the Internet Attack Types
  • Internet attacks replicate diverse malicious activities within networked environments, like:
    • DDoS Attacks: Surplus a target server including excessive traffic.
    • MITM (Man-in-the-Middle) Attacks: Interrupt and possibly modify the interaction among parties.
    • Phishing Simulations: Counterfeit servers or replies to simulate the legitimate entities.
    • Packet Sniffing: Inactive interception of packets to move through the internet.
    • Replay Attacks: To retransmit the before captured packets for disturbing typical behavior.
  1. Set Up OMNeT++ and INET Framework
  • OMNeT++ Installation: We should download and install the OMNeT++ on the system.
  • INET Framework:
    • We can install the INET Framework that offers support for TCP/IP, UDP, and other internet protocols.
  1. Define Project Goals and Attack Scenarios

Step 3.1: Choose Attack Types

  • Instances of internet attacks for replicating:
    • DDoS: Overflow a server or router including fake demands.
    • MITM: Seizure and alter the legitimate traffic among nodes.
    • Packet Sniffing: Record intercepted packets for analysis.
    • DNS Spoofing: Counterfeit replies toward DNS queries.

Step 3.2: Network Metrics

  • Examine the influence of attacks to estimate:
    • Network performance parameters such as latency, throughput, and packet delivery ratio.
    • Server uptime and response time.
  1. Design the Network Topology

Make a simulated network topology in a .ned file.

Example .ned File for a DDoS Attack:

network InternetAttackNetwork {

submodules:

client1: StandardHost;

client2: StandardHost;

client3: StandardHost;   // Attacking clients

attacker: StandardHost; // Main attacker

server: StandardHost;    // Target server

router: Router;

connections allowunconnected:

client1.ethg++ <–> EthernetLink <–> router.ethg++;

client2.ethg++ <–> EthernetLink <–> router.ethg++;

client3.ethg++ <–> EthernetLink <–> router.ethg++;

attacker.ethg++ <–> EthernetLink <–> router.ethg++;

router.ethg++ <–> EthernetLink <–> server.ethg++;

}

  1. Implement Attack Behavior

Step 5.1: DDoS Attack

  • We will need to make a component for replicating several bots to transmit demands to a target server:

#include <omnetpp.h>

#include “inet/applications/udpapp/UdpBasicApp.h”

using namespace omnetpp;

using namespace inet;

class DDoSAttacker : public UdpBasicApp {

protected:

virtual void initialize(int stage) override;

virtual void sendPacket() override;

};

Define_Module(DDoSAttacker);

void DDoSAttacker::initialize(int stage) {

UdpBasicApp::initialize(stage);

if (stage == INITSTAGE_APPLICATION_LAYER) {

scheduleAt(simTime() + uniform(0.1, 0.5), new cMessage(“attack”));

}

}

void DDoSAttacker::sendPacket() {

auto pkt = createPacket(“DDoSPacket”);

sendPacket(pkt);

scheduleAt(simTime() + uniform(0.01, 0.1), new cMessage(“attack”));

}

Step 5.2: MITM Attack

  • Replicate an intermediate node, which interrupts packets, records and sends them:

class ManInTheMiddle : public cSimpleModule {

protected:

virtual void handleMessage(cMessage *msg) override;

};

Define_Module(ManInTheMiddle);

void ManInTheMiddle::handleMessage(cMessage *msg) {

EV << “Intercepted packet: ” << msg->getName() << “\n”;

send(msg, “out”);

}

Step 5.3: Packet Sniffing

  • Record packets devoid of interfering including the interaction:

class PacketSniffer : public cSimpleModule {

protected:

virtual void handleMessage(cMessage *msg) override;

};

Define_Module(PacketSniffer);

void PacketSniffer::handleMessage(cMessage *msg) {

EV << “Sniffed packet: ” << msg->getName() << “\n”;

delete msg;

}

  1. Configure the Simulation

Step 6.1: Configure Traffic

  • To utilise UdpBasicApp for configuring legitimate traffic:

**.client*.numApps = 1

**.client*.app[0].typename = “UdpBasicApp”

**.client*.app[0].destAddress = “server”

**.client*.app[0].startTime = uniform(0.5s, 1s)

**.client*.app[0].sendInterval = 1s

Step 6.2: Configure the Attacker

  • Integrate the attack metrics:

**.attacker.numApps = 1

**.attacker.app[0].typename = “DDoSAttacker”

**.attacker.app[0].destAddress = “server”

**.attacker.app[0].startTime = 1s

**.attacker.app[0].sendInterval = 0.01s

  1. Run and Visualize the Simulation
  • Utilise OMNeT++ IDE to execute the simulation.
  • Make use of built-in tools to:
    • Observe the traffic flows.
    • Examine the metrics like packet loss, latency, and other parameters.
  • Optionally, we can utilise Wireshark for in-depth packet analysis.
  1. Analyze the Impact
  • Calculate:
    • Server replies time and resource consumption in attack.
    • Bandwidth utilization triggered by attackers.
    • Latency for legitimate clients.
  1. Enhance the Project

Step 9.1: Mitigation Techniques

  • We want to execute and replicate the defenses:
    • Intrusion detection/prevention systems.
    • Blacklisting attackers.
    • Rate limiting.

Step 9.2: Advanced Attacks

  • Mimic more advanced attacks scenarios like:
    • Replay attacks to utilise captured packets.
    • Botnet-based coordinated attacks.
    • Distributed MITM attacks.

Step 9.3: Realistic Scenarios

  • To utilise mobility components of INET (for instance, simulate WiFi or cellular internet), integrate mobility. multi
  • Maximize the network complexity including several routers and subnets.
  1. Document Your Project
  • It offers detailed reports including:
    • Objectives.
    • Topology and sets up.
    • Attack execution details.
    • Simulation outcomes and analysis.
    • Countermeasure efficiency.

To conclude, we completely learn and understood about how Internet Attacks projects simulate and examine with the support of given procedure using OMNeT++ tool. More information about this subject containing specific attack implementation, network configuration, or data analysis, will also be provided.