Cryptographic Backdoor for Neural Networks: Boon and Bane

In this paper we show that cryptographic backdoors in a neural network NN can be highly effective in two directions, namely mounting the attacks as well as in presenting the defenses as well. On the attack side, a carefully planted cryptographic backdoor enables powerful and invisible attack on t...

FakeUpdates, Remcos, AgentTesla Top Malware Charts in Stealth Attack Surge

Check Point's April 2025 malware report reveals increasingly sophisticated and hidden attacks using familiar malware like FakeUpdates, Remcos,…...

Residual-Evasive Attacks on ADMM in Distributed Optimization

This paper presents two attack strategies designed to evade detection in ADMM-based systems by preventing significant changes to the residual during the attacked iteration. While many detection algorithms focus on identifying false data injection through residual changes, we show that our attacks...

New Ymir Ransomware Exploits Memory for Stealthy Attacks; Targets Corporate Networks

Cybersecurity researchers have flagged a new ransomware family called Ymir that was deployed in an attack two days after systems were compromised by a stealer malware called RustyStealer. "Ymir ransomware introduces a unique combination of technical features and tactics that enhance its...

Bluebottle Cybercrime Group Preys on Financial Sector in French-Speaking African Nations

A cybercrime group dubbed Bluebottle has been linked to a set of targeted attacks against the financial sector in Francophone countries located in Africa from at least July 2022 to September 2022. "The group makes extensive use of living-off-the-land, dual use tools, and commodity malware, with n...

Dell Releases A New Cybersecurity Utility To Detect BIOS Attacks

Computer manufacturing giant Dell has released a new security tool for its commercial customers that aims to protect their computers from stealthy and sophisticated cyberattacks involving the compromise of the BIOS. Dubbed 'SafeBIOS Events & Indicators of Attack' IoA, the new endpoint security...