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Deep neural networks (DNNs) are vulnerable to "backdoor" poisoning attacks, in which an adversary implants a secret trigger into an otherwise normally functioning model. Detection of backdoors in trained models without access to the…

Machine Learning · Computer Science 2021-03-19 Todd Huster , Emmanuel Ekwedike

Deep Neural Networks (DNNs) have been shown to be susceptible to Trojan attacks. Neural Trojan is a type of targeted poisoning attack that embeds the backdoor into the victim and is activated by the trigger in the input space. The…

Machine Learning · Computer Science 2022-08-11 Diego Garcia-soto , Huili Chen , Farinaz Koushanfar

Despite their success and popularity, deep neural networks (DNNs) are vulnerable when facing backdoor attacks. This impedes their wider adoption, especially in mission critical applications. This paper tackles the problem of Trojan…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Xiaoling Hu , Xiao Lin , Michael Cogswell , Yi Yao , Susmit Jha , Chao Chen

Deep Neural Networks (DNNs) have found extensive applications in safety-critical artificial intelligence systems, such as autonomous driving and facial recognition systems. However, recent research has revealed their susceptibility to…

Cryptography and Security · Computer Science 2024-08-20 Lingxin Jin , Xianyu Wen , Wei Jiang , Jinyu Zhan

With the surge of Machine Learning (ML), An emerging amount of intelligent applications have been developed. Deep Neural Networks (DNNs) have demonstrated unprecedented performance across various fields such as medical diagnosis and…

Cryptography and Security · Computer Science 2022-04-12 Xinqiao Zhang , Huili Chen , Ke Huang , Farinaz Koushanfar

Trojan (backdoor) attack is a form of adversarial attack on deep neural networks where the attacker provides victims with a model trained/retrained on malicious data. The backdoor can be activated when a normal input is stamped with a…

Machine Learning · Computer Science 2021-01-05 Siyuan Cheng , Yingqi Liu , Shiqing Ma , Xiangyu Zhang

Backdoor (Trojan) attacks are emerging threats against deep neural networks (DNN). A DNN being attacked will predict to an attacker-desired target class whenever a test sample from any source class is embedded with a backdoor pattern; while…

Cryptography and Security · Computer Science 2021-12-08 Xi Li , Zhen Xiang , David J. Miller , George Kesidis

A recent trojan attack on deep neural network (DNN) models is one insidious variant of data poisoning attacks. Trojan attacks exploit an effective backdoor created in a DNN model by leveraging the difficulty in interpretability of the…

Cryptography and Security · Computer Science 2020-01-20 Yansong Gao , Chang Xu , Derui Wang , Shiping Chen , Damith C. Ranasinghe , Surya Nepal

Backdoor (Trojan) attacks are an important type of adversarial exploit against deep neural networks (DNNs), wherein a test instance is (mis)classified to the attacker's target class whenever the attacker's backdoor trigger is present. In…

Machine Learning · Computer Science 2023-08-22 Xi Li , Zhen Xiang , David J. Miller , George Kesidis

Although deep neural networks (DNNs) have achieved a great success in various computer vision tasks, it is recently found that they are vulnerable to adversarial attacks. In this paper, we focus on the so-called \textit{backdoor attack},…

Cryptography and Security · Computer Science 2025-03-27 Hao Cheng , Kaidi Xu , Sijia Liu , Pin-Yu Chen , Pu Zhao , Xue Lin

Deep neural networks are being widely deployed for many critical tasks due to their high classification accuracy. In many cases, pre-trained models are sourced from vendors who may have disrupted the training pipeline to insert Trojan…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Xiaoyu Zhang , Ajmal Mian , Rohit Gupta , Nazanin Rahnavard , Mubarak Shah

Deep Neural Networks (DNNs) have been applied successfully in computer vision. However, their wide adoption in image-related applications is threatened by their vulnerability to trojan attacks. These attacks insert some misbehavior at…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Miguel Villarreal-Vasquez , Bharat Bhargava

Machine learning models that use deep neural networks (DNNs) are vulnerable to backdoor attacks. An adversary carrying out a backdoor attack embeds a predefined perturbation called a trigger into a small subset of input samples and trains…

Cryptography and Security · Computer Science 2023-09-06 Arezoo Rajabi , Surudhi Asokraj , Fengqing Jiang , Luyao Niu , Bhaskar Ramasubramanian , Jim Ritcey , Radha Poovendran

The success of deep neural networks (DNNs) in real-world applications has benefited from abundant pre-trained models. However, the backdoored pre-trained models can pose a significant trojan threat to the deployment of downstream DNNs.…

Cryptography and Security · Computer Science 2024-07-18 Haibo Jin , Ruoxi Chen , Jinyin Chen , Haibin Zheng , Yang Zhang , Haohan Wang

With the widespread use of deep neural networks (DNNs) in high-stake applications, the security problem of the DNN models has received extensive attention. In this paper, we investigate a specific security problem called trojan attack,…

Cryptography and Security · Computer Science 2020-06-19 Ruixiang Tang , Mengnan Du , Ninghao Liu , Fan Yang , Xia Hu

Deep neural networks have been shown to be vulnerable to backdoor, or trojan, attacks where an adversary has embedded a trigger in the network at training time such that the model correctly classifies all standard inputs, but generates a…

Machine Learning · Computer Science 2021-09-08 Greg Fields , Mohammad Samragh , Mojan Javaheripi , Farinaz Koushanfar , Tara Javidi

Recently, it has been shown that deep learning models are vulnerable to Trojan attacks, where an attacker can install a backdoor during training time to make the resultant model misidentify samples contaminated with a small trigger patch.…

Computer Vision and Pattern Recognition · Computer Science 2020-06-11 Haripriya Harikumar , Vuong Le , Santu Rana , Sourangshu Bhattacharya , Sunil Gupta , Svetha Venkatesh

Adversarial attacks on deep learning-based models pose a significant threat to the current AI infrastructure. Among them, Trojan attacks are the hardest to defend against. In this paper, we first introduce a variation of the Badnet kind of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-11 Haripriya Harikumar , Santu Rana , Kien Do , Sunil Gupta , Wei Zong , Willy Susilo , Svetha Venkastesh

Deep Neural Networks are vulnerable to Trojan (or backdoor) attacks. Reverse-engineering methods can reconstruct the trigger and thus identify affected models. Existing reverse-engineering methods only consider input space constraints,…

Cryptography and Security · Computer Science 2022-10-28 Zhenting Wang , Kai Mei , Hailun Ding , Juan Zhai , Shiqing Ma

Recent works found that deep neural networks (DNNs) can be fooled by adversarial examples, which are crafted by adding adversarial noise on clean inputs. The accuracy of DNNs on adversarial examples will decrease as the magnitude of the…

Cryptography and Security · Computer Science 2023-05-30 Zhanhao Hu , Jun Zhu , Bo Zhang , Xiaolin Hu
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