A Review on Intrusion Detection Using Machine Learning Techniques

Due to the rapid growth in IT technology, digital data have increased availability, creating novel security threats that need immediate attention. An intrusion detection system (IDS) is the most promising solution for preventing malicious intrusions and tracing suspicious network behavioral patterns. Machine learning (ML) methods are widely used in IDS. Due to a limited training dataset, an ML-based IDS generates a higher false detection ratio and encounters data imbalance issues. To deal with the data-imbalance issue, this research develops an efficient hybrid network-based IDS model (HNIDS), which is utilized using the enhanced genetic algorithm and particle swarm optimization(EGA-PSO) and improved random forest (IRF) methods. In the initial phase, the proposed HNIDS utilizes hybrid EGA-PSO methods to enhance the minor data samples and thus produce a balanced data set to learn the sample attributes of small samples more accurately. In the proposed HNIDS, a PSO method improves the vector. GA is enhanced by adding a multi-objective function, which selects the best features and achieves improved fitness outcomes to explore the essential features and helps minimize dimensions, enhance the true positive rate (TPR), and lower the false positive rate (FPR). In the next phase, an IRF eliminates the less significant attributes, incorporates a list of decision trees across each iterative process, supervises the classifier’s performance, and prevents overfitting issues. The performance of the proposed method and existing ML methods are tested using the benchmark datasets NSL-KDD. The experimental findings demonstrated that the proposed HNIDS method achieves an accuracy of 98.979% on BCC and 88.149% on MCC for the NSL-KDD dataset, which is far better than the other ML methods i.e., SVM, RF, LR, NB, LDA, and CART.

In light of rapid technological developments, a marked rise in global internet usage has contributed to increased sensitive data flow across networks. This increase leads to the diversification of malicious attacks and makes cyber security requirements more evident. In order to ensure network security, intrusion detection systems stand out as an essential component. Intrusion detection systems detect suspicious and malicious activities over network traffic, allowing network administrators and experts to monitor current threats continuously. In anomaly-based systems, machine learning approaches are applied to identify abnormal attempts in network traffic. This study presents a feature selection framework for anomaly-based attack detection systems by combining machine learning and heuristic algorithms. This proposed study aims to improve the performance of IDSs in terms of both time and attack detection by selecting features with heuristic approaches. In the proposed approach, PSO, FPA, DE feature selection methods and LR, DT, RF, KNN, NB, GB, LDA, QDA, AdaBoost, and NN machine learning algorithms are used to perform anomaly-based comparative analyses on KDDCup99, NSL-KDD, UNSW-NB15, CSE-CIS-IDS2018 datasets. Analyses conducted on these datasets with various features demonstrated that models employing feature selection achieved an approximate two-hundred-percent improvement in time efficiency compared to models that did not utilize feature selection. It has been determined that DE, PSO, and FPA, which are used for feature selection, provide high-accuracy outputs when combined with different classifiers. When the analysis results are assessed according to the specified criteria, the highest F1-Score values achieved are as follows: 0.9972 for the DE method in GB, 0.9969 for the PSO method in GB, and 0.9948 for the FPA method in GB, on the KDD CUP 99 dataset. In the NSL-KDD, used as the second dataset, the DE method achieved a score of 0.9713 in GB, the PSO method reached 0.9112 in DT, and the FPA method obtained 0.9894 in RF, respectively. In the third dataset, UNSW-NB15, the DE method achieved a score of 0.9507 in DT, the PSO method reached 0.9068 in DT, and the FPA method obtained 0.8924 in NN. Finally, in the CSE-CIC-IDS2018 dataset, the highest scores achieved using the RF algorithm were 0.99986 for the DE method, 0.99989 for the PSO method, and 0.99987 for the FPA method, based on feature selection. The obtained results underscore the critical role of dataset generation processes and network traffic dynamics in enhancing the performance of intrusion detection systems. Additionally, the significance of feature selection was highlighted. These findings offer valuable insights and present opportunities for further advancements in future research.

The increasing popularity of internet of things (IoT), dissimilar networks, distributed devices, and applications has turned out to be a major call for the identification of novel security threats and tracing malicious network behaviours. An intrusion detection system (IDS) is a self-defense tool for preventing several types of cyberattacks. Latest machine learning (ML) methods are becoming the backbone for constructing intelligent IDS that are highly data driven. This chapter proposes decision tree based IDS for the dataset NSL-KDD. A novel approach has been developed for the ranking of security features. The proposed system has been validated against performance evaluation metrics consisting of recall, precision, accuracy, and F score. The results produced by the proposed system are compared with well-known ML methods including logistic regression, support vector machines and K-nearest neighbor in order to analyse the efficiency.

Machine learning (ML) is being used to improve intrusion detection mechanisms and identification in cyber security. Network data volume scaling (with the help of Machine learning) — Automated analysis and pattern recognition for large amounts of network-data, thereby detection of anomalies / potentially malicious activities that escape current rule-based techniques. By training ML models on historical data, these models can learn benign network behavior as well the anomalies in them that may result from malicious activities. The purpose of this essay/report is to begin taking a look under the hood at how ML can be used for security threat detection and analysis in-networking on an ongoing basis. This paper covers the automation of ML algorithms to enhance network security. Given the current state of electronic threats and their evolution, traditional security methods are typically insufficient. ML can analyze large volumes of data, learn patterns from it and this makes it suitable to complement network defense mechanisms. It then discusses different ML applications in network cybersecurity: intrusion detection, anomaly detection, spam and malware analysis; which the paper characterizes. It analyzes the potential, benefits and constrains of major ML methods in network security like supervised learning; unsupervised learning and reinforcement-learning. Finally, this paper represents recent progress in the use and impact of ML techniques along with case studies.The paper discusses the existing difficulties in the field such as the necessity for datasets and the vulnerability of machine learning models to adversarial attacks.T he paper also highlights avenues for exploration by focusing on developing scalable security solutions based on machine learning that are resilient and flexible.The goal of this examination is to offer both researchers and industry professionals valuable perspectives into the opportunities and obstacles linked to utilizing machine learning, in the domain of network security. ML methods have potential to improve network security by addressing the challenges posed by the increasing cyber threats that traditional security measures struggle to combat effectively over time. One key strength of ML lies in its capacity to analyze datasets and identify intricate patterns efficiently. The research paper delves into applications of ML in enhancing network security. The list covers security tools like Intrusion Detection Systems (IDS) examining malware and phishing attempts as well as anomalies in network activity and user behavior analysis (UEBA). The study explores both supervised and unsupervised learning methods. How they are used for quick threat detection and response in real time scenarios.You will find case studies and recent developments that showcase the implementation and effectiveness of these strategies.In addition the article delves into the obstacles linked to using machine learning techniques in network security including the necessity, for datasets, The paper's goal is to give an enlightening summary to scholars and practitioners about how machine learning can be applied to network security in order to provide solutions that are robust, adaptive, and scalable. To this end, it touches on several relevant aspects. One is the threat posed by adversarial attacks on the sorts of models that are likely to be used in this context. Another is the imperative, deriving from both adversarial threat and model drift, that models needed in this context be available in a form usable for continuous update. Keywords: Network Security, machine learning (ML), Intrusion Detection Systems (IDS), entity behavior analytics (UEBA).

A differential evolution-based algorithm with maturity extension for feature selection in intrusion detection system

A dose deposition matrix (DDM) prediction method using several voxel features and a machine learning (ML) approach is proposed for plan optimization in radiation therapy. Head and lung cases with the inhomogeneous medium are used as training and testing data. The prediction model is a cascade forward backprop neural network where the input is the features of the voxel, including 1) voxel to body surface distance along the beamlet axis, 2) voxel to beamlet axis distance, 3) voxel density, 4) heterogeneity corrected voxel to body surface distance, 5) heterogeneity corrected voxel to beamlet axis, and (6) the dose of voxel obtained from the pencil beam (PB) algorithm. The output is the predicted voxel dose corresponding to a beamlet. The predicted DDM was used for plan optimization (ML method) and compared with the dose of MC-based plan optimization (MC method) and the dose of pencil beam-based plan optimization (PB method). The mean absolute error (MAE) value was calculated for full volume relative to the dose of the MC method to evaluate the overall dose performance of the final plan. For patient with head tumor, the ML method achieves MAE value 0.49 × 10-4 and PB has MAE 1.86 × 10-4. For patient with lung tumor, the ML method has MAE 1.42 × 10-4 and PB has MAE 3.72 × 10-4. The maximum percentage difference in PTV dose coverage (D98) between ML and MC methods is no more than 1.2% for patient with head tumor, while the difference is larger than 10% using the PB method. For patient with lung tumor, the maximum percentage difference in PTV dose coverage (D98) between ML and MC methods is no more than 2.1%, while the difference is larger than 16% using the PB method. In this work, a reliable DDM prediction method is established for plan optimization by applying several voxel features and the ML approach. The results show that the ML method based on voxel features can obtain plans comparable to the MC method and is better than the PB method in achieving accurate dose to the patient, which is helpful for rapid plan optimization and accurate dose calculation. Establishment of a new machine learning method based on the relationship between the voxel and beamlet features for dose deposition matrix prediction in radiation therapy.

P125. Development of a novel ensemble machine learning algorithm for prediction of complications and readmission after anterior cervical spinal fusion

Recent advancements in technology, particularly in artificial intelligence (AI) and machine learning (ML), have significantly enhanced connectivity and efficiency in various domains. However, these developments have also led to increased threats and concerns regarding cyberattacks which have significantly challenged governments, businesses, and societies. An Intrusion Detection System (IDS) is a critical component of a cybersecurity architecture that is designed to monitor and analyze network traffic for signs of malicious activity and plays an essential role in detecting and responding to security threats. The increasing complexity of security attacks has led researchers to use machine learning (ML) and deep learning (DL) methods to enhance IDS performance. These cutting-edge systems are designed to detect emerging cyberthreats. The current study investigates and compares various types of IDS and AI-based techniques that use ML and DL algorithms to protect data against malicious threats. It also provides an overview of the architecture and operation of IDS and examines popular datasets such as CIC-IDS2017, KDDCup99 and UNSW-NB15 used to evaluate IDS models. These datasets offer a diverse range of attack scenarios and normal traffic and help create a more reliable and effective IDS which improves the overall network security. The study concludes by emphasizing constant progress in IDS technologies to combat evolving cyberthreats and enhance network security.

Lateral Movement (LM) represents a growing threat, frequently employed by advanced persistent threat groups to escalate privileges and navigate systems towards high-value assets. Recognizing the limitations of existing literature, this work leverages the unique LM-focused LMD-2023 imbalanced benchmark dataset, which comprises Microsoft Windows Sysmon logs, to provide a multifaceted novel contribution to the LM Intrusion Detection System (IDS) domain. We investigate the impact of various open-source over-undersampling balancing techniques on the performance of LM IDS frameworks. Specifically, we address the research question: How does the sample distribution within a benchmark dataset affect the performance evaluation metrics of LM-oriented IDS models, either shallow or DNN? To this end, we adopt a multiclass supervised approach, classifying network activity into Normal, Exploitation of Remote Services, and Exploitation of Hashing Techniques. We scrutinize the effect of oversampling, undersampling, and hybrid-sampling techniques across 13 machine learning algorithms, nine shallow and four deep neural network techniques, using the LMD-2023 corpus. Our key findings reveal that balanced versions of the dataset generally improved performance. Shallow models trained on resampled data achieved a marginal convergence of approximately +0.05% in AUC and F1-score compared to the imbalanced scenario. Notably, DNN models exhibited a more substantial performance gain of around 3.5% across most balancing techniques. Furthermore, analysis of False Positive Rate (FPR) and False Negative Rate (FNR) revealed crucial trade-offs. Notably, while some balanced datasets led to near-zero FNR with ensemble methods like Bagging, others, particularly with DNNs and techniques like ADASYN, showed a higher propensity for false alarms. These observations underscore the critical role of data balancing in optimizing LM IDS performance and highlight the varying impact of different techniques on the FPR/FNR trade-off for shallow versus deep learning models.

An intrusion detection system (IDS) is an important tool to prevent potential threats to systems and data. Anomaly-based IDSs may deploy machine learning algorithms to classify events either as normal or anomalous and trigger the adequate response. When using supervised learning, these algorithms require classified, rich, and recent datasets. Thus, to foster the performance of these machine learning models, datasets can be generated from different sources in a collaborative approach, and trained with multiple algorithms. This paper proposes a vote-based architecture to generate classified datasets and improve the performance of supervised learning-based IDSs. On a regular basis, multiple IDSs in different locations send their logs to a central system that combines and classifies them using different machine learning models and a majority vote system. Then, it generates a new and classified dataset, which is trained to obtain the best updated model to be integrated into the IDS of the companies involved. The proposed architecture trains multiple times with several algorithms. To shorten the overall runtimes, the proposed architecture was deployed in Fed4FIRE+ with Ray to distribute the tasks by the available resources. A set of machine learning algorithms and the proposed architecture were assessed. When compared with a baseline scenario, the proposed architecture enabled to increase the accuracy by 11.5% and the precision by 11.2%.

Intrusion Detection Systems (IDS) are crucial for maintaining the security and integrity of network infrastructures. This review paper comprehensively examines the evolution and advancements in IDS technologies, focusing on both traditional methods and contemporary machine learning and deep learning approaches. Traditional IDS methods, including signature-based and anomaly-based detection, laid the groundwork for current systems but faced challenges such as high false-positive rates and limited adaptability. Recent advancements in machine learning, specifically supervised and unsupervised learning algorithms, have significantly enhanced the accuracy and efficiency of IDS. Deep learning techniques, particularly convolutional neural networks (CNNs) and recurrent neural networks (RNNs), offer promising solutions for complex and high-volume network traffic analysis. This review also explores federated learning for IDS, emphasizing its potential for data privacy preservation and reduced computational load. Furthermore, hybrid models combining various algorithms are discussed for their capability to leverage the strengths of multiple techniques. The paper synthesizes current research, highlighting key methodologies, datasets, evaluation metrics, and the future direction of IDS research. By providing a thorough analysis of existing literature and identifying gaps, this review aims to guide future research efforts and practical implementations in the field of network security.

Nowadays, Internet-driven culture securing computer networks in Higher Learning Institutions (HLIs) has become a major responsibility. Intrusion Detection Systems (IDS) are crucial for protecting networks from unauthorized activity and cyber threats. This paper examines the process of improving network security by creating a comprehensive IDS dataset using real traffic from HLIs, highlighting the importance of accurate and representative data in improving the system's ability to identify and mitigate future cyber-attacks. The IDS model was created using a variety of machine learning (ML) techniques. Metrics like accuracy, precision, recall, and F1-score were used to assess the performance of each model. The dataset used for training and testing was real-world network traffic data obtained from the institution's computer network. The results showed that the developed IDS obtained exceptional accuracy rates, with Random Forest, Gradient Boosting, and XGBoost models all achieving an accuracy of around 93%. Precision and recall values were likewise quite high across all algorithms. Furthermore, the study discovered that data quality has a substantial impact on IDS performance. Proper data preparation, feature engineering, and noise removal were found to be helpful in improving model accuracy and reducing false positives. While the IDS models performed well throughout validation and testing, implementing such systems in a production setting necessitates careful thought. As a result, the essay also examined the procedures for testing and deploying the IDS models in a real-world scenario. It underlined the significance of ongoing monitoring and maintenance in order to keep the model effective in identifying intrusions. The research aids in the progress of network security in HLI. Educational institutions can better protect their precious assets and sensitive information from cyberattacks by understanding the impact of data quality on IDS performance and implementing effective deployment techniques

With the growth of internet world has transformed into a global market with all monetary and business exercises being carried online. Being the most imperative resource of the developing scene, it is the vulnerable object and hence needs to be secured from the users with dangerous personality set. Since the Internet does not have focal surveillance component, assailants once in a while, utilizing varied and advancing hacking topologies discover a path to bypass framework's security and one such collection of assaults is Intrusion. An intrusion is a movement of breaking into the framework by compromising the security arrangements of the framework set up. The technique of looking at the system information for the conceivable intrusions is known intrusion detection. For the last two decades, automatic intrusion detection system has been an important exploration point. Till now researchers have developed Intrusion Detection Systems (IDS) with the capability of detecting attacks in several available environments; latest on the scene are Machine Learning approaches. Machine learning techniques are the set of evolving algorithms that learn with experience, have improved performance in the situations they have already encountered and also enjoy a broad range of applications in speech recognition, pattern detection, outlier analysis etc. There are a number of machine learning techniques developed for different applications and there is no universal technique that can work equally well on all datasets. In this work, we evaluate all the machine learning algorithms provided by Weka against the standard data set for intrusion detection i.e. KddCupp99. Different measurements contemplated are False Positive Rate, precision, ROC, True Positive Rate.

An intrusion detection system (IDS) is an important protection instrument for detecting complex network attacks. Various machine learning (ML) or deep learning (DL) algorithms have been proposed for implementing anomaly-based IDS (AIDS). Our review of the AIDS literature identifies some issues in related work, including the randomness of the selected algorithms, parameters, and testing criteria, the application of old datasets, or shallow analyses and validation of the results. This paper comprehensively reviews previous studies on AIDS by using a set of criteria with different datasets and types of attacks to set benchmarking outcomes that can reveal the suitable AIDS algorithms, parameters, and testing criteria. Specifically, this paper applies 10 popular supervised and unsupervised ML algorithms for identifying effective and efficient ML-AIDS of networks and computers. These supervised ML algorithms include the artificial neural network (ANN), decision tree (DT), k-nearest neighbor (k-NN), naive Bayes (NB), random forest (RF), support vector machine (SVM), and convolutional neural network (CNN) algorithms, whereas the unsupervised ML algorithms include the expectation-maximization (EM), k-means, and self-organizing maps (SOM) algorithms. Several models of these algorithms are introduced, and the turning and training parameters of each algorithm are examined to achieve an optimal classifier evaluation. Unlike previous studies, this study evaluates the performance of AIDS by measuring the true positive and negative rates, accuracy, precision, recall, and F-Score of 31 ML-AIDS models. The training and testing time for ML-AIDS models are also considered in measuring their performance efficiency given that time complexity is an important factor in AIDSs. The ML-AIDS models are tested by using a recent and highly unbalanced multiclass CICIDS2017 dataset that involves real-world network attacks. In general, the k-NN-AIDS, DT-AIDS, and NB-AIDS models obtain the best results and show a greater capability in detecting web attacks compared with other models that demonstrate irregular and inferior results.

In the era of artificial intelligence, machine learning methods are successfully used in various fields. Machine learning has attracted extensive attention from investors in the financial market, especially in stock price prediction. However, one argument for the machine learning methods used in stock price prediction is that they are black-box models which are difficult to interpret. In this paper, we focus on the future stock price prediction with the historical stock price by machine learning and deep learning methods, such as support vector machine (SVM), random forest (RF), Bayesian classifier (BC), decision tree (DT), multilayer perceptron (MLP), convolutional neural network (CNN), bi-directional long-short term memory (BiLSTM), the embedded CNN, and the embedded BiLSTM. Firstly, we manually design several financial time series where the future price correlates with the historical stock prices in pre-designed modes, namely the curve-shape-feature (CSF) and the non-curve-shape-feature (NCSF) modes. In the CSF mode, the future prices can be extracted from the curve shapes of the historical stock prices. Conversely, in the NCSF mode, they can’t. Secondly, we apply various algorithms to those pre-designed and real financial time series. We find that the existing machine learning and deep learning algorithms fail in stock price prediction because in the real financial time series, less information of future prices is contained in the CSF mode, and perhaps more information is contained in the NCSF. Various machine learning and deep learning algorithms are good at handling the CSF in historical data, which are successfully applied in image recognition and natural language processing. However, they are inappropriate for stock price prediction on account of the NCSF. Therefore, accurate stock price prediction is the key to successful investment, and new machine learning algorithms handling the NCSF series are needed.