How to Start Password Sniffing Attacks Projects Using OMNeT++

To stimulate a Password Sniffing Attack in OMNeT++ has been involves the designing a network in which an attacker intercepts and examine the packets we extract the complex information, such as credentials. While OMNeT++ is primarily a network replication, it can be expand to replicate like as attacks, it contains the run for packet interception and analysis.

Here’s a step-by-step guide to create a Password Sniffing Attack Simulation Project in OMNeT++:

Steps to Start Password Sniffing Attacks Projects Using OMNeT++

1. Understand Password Sniffing

• Definition: The passwords sniffing refers to intercepting network congestion to seizure the plaintext credentials or other complex data transmitted over the unauthorized protocols for sample  HTTP, Telnet, or FTP.
• Common Scenarios:
  • Interception of unencrypt for credentials.
  • Exploiting the unsafe for protocols.
  • Using the tools such as packet sniffers for instance Wireshark.
• Objectives:
  • Replicate the attacker node for intercepting network congestion.
  • Extract complex data from intercepted packets.

2. Set Up OMNeT++ and INET Framework

• Install OMNeT++: Download and set up OMNeT++ from the official website.
• Install INET Framework:
  • INET offers the tools we replicate the network communication and model packet flows.

3. Define Project Scope

Step 3.1: Goals

• The network replicate by legitimate congestion among nodes.
• Launch an attacker node which intercepts their packets.
• Explain the ability to extract complex information from intercepted packets.

Step 3.2: Metrics

• Interception Rate: The rate of packets for interrupt through the attacker.
• Extracted Credentials: Number of sensitive data samples are captured in the extracted credentials.
• Impact on Network Performance: Estimate the latency or packet loss caused through the attack.

4. Design the Network Topology

State a network by legitimate nodes is transmission over unsecured protocols and an attacker node are sniffing congestion.

Example .ned File:

network PasswordSniffingNetwork {

submodules:

client: StandardHost;      // Legitimate client

server: StandardHost;      // Legitimate server

attacker: StandardHost;    // Attacker node

router: Router;            // Router connecting nodes

connections allowunconnected:

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

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

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

}

5. Implement Legitimate Traffic

Uses INET’s UdpBasicApp or alter the application we replicate unencrypt information transmission.

Example .ini File Configuration:

[Config PasswordSniffingSimulation]

network = PasswordSniffingNetwork

# Client configuration (sending unencrypted data)

**.client.numApps = 1

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

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

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

**.client.app[0].sendInterval = uniform(1s, 2s)

**.client.app[0].packetLength = 256B

 

# Server configuration (receiving data)

**.server.numApps = 1

**.server.app[0].typename = “UdpSink”

# Simulation time

sim-time-limit = 50s

6. Implement the Attacker

The attacker node interrupt packets and extracts complex data.

Example Attacker Module:

#include <omnetpp.h>

#include “inet/common/packet/Packet.h”

using namespace omnetpp;

using namespace inet;

class PasswordSniffer : public cSimpleModule {

private:

int interceptedPackets = 0;

protected:

virtual void initialize() override;

virtual void handleMessage(cMessage *msg) override;

void analyzePacket(Packet *pkt);

};

Define_Module(PasswordSniffer);

void PasswordSniffer::initialize() {

// Enable promiscuous mode to receive all traffic

cModule *interfaceTable = getModuleByPath(“^.eth[*]”);

interfaceTable->par(“promiscuousMode”).setBoolValue(true);

}

void PasswordSniffer::handleMessage(cMessage *msg) {

Packet *pkt = check_and_cast<Packet *>(msg);

EV << “Packet intercepted: ” << pkt->getName() << “\n”;

analyzePacket(pkt);

delete pkt; // Simulate attack by dropping the packet

}

void PasswordSniffer::analyzePacket(Packet *pkt) {

auto payload = pkt->peekData(); // Access packet content

std::string data = payload->str(); // Convert to string (if applicable)

// Example: Detect “username:password” pattern

if (data.find(“username:password”) != std::string::npos) {

EV << “Sensitive information captured: ” << data << “\n”;

interceptedPackets++;

}

}

7. Run and Visualize the Simulation

• Run the Simulation: Introduce the process of replication in OMNeT++.
• Monitor Behavior:
  • Packets are intercepted through the attacker node.
  • Complex data extracted from the packets.

8. Analyze Results

Metrics to Evaluate:

1. Interception Rate:
   • Measure the rate of packets has interrupted through the attacker.
2. Extracted Credentials:
   • Number the instances for complex data captured.
3. Impact on Network:
   • Calculate the delays, packet loss, or other performance problems caused through the attack.

Visualization:

• Use OMNeT++ tools to track the packet interrupt and study.

9. Enhance the Project

Step 9.1: Simulate Encrypted Communication

• Improve encode for legitimate congestion and estimate the attack’s effectiveness.

Step 9.2: Add Countermeasures

• Replicate the intrusion detection systems (IDS) or firewalls to finding the block sniffing attempts.

Step 9.3: Expand the Network

• It contains the several clients and servers we replicate a larger-scale network.

Step 9.4: Simulate Advanced Attacks

• Associates the sniffing through other attacks such as man-in-the-middle (MITM) to bypass encodes.

10. Example Output

• Before Countermeasures:
  • Attacker has successfully intercepts and extracts complex data.
• After Countermeasures:
  • Encode avoid the attacker from extracting useful data.
  • IDS findings and enhance the sniffing efforts.

Would you like help implementing encryption, intrusion detection, or scaling the network?

We cover the overall information that will understand the concepts and techniques that will help you to give some unique ideas to simulate the password sniffing attack project using the tool of OMNeT++. More information will be shared in the upcoming manual.