Cyber Threat Intelligence perspectives on 2025
Multivariate signatures based on identification schemes
Netwalker is a type of ransomware that targets Windows-based systems. First discovered in August 2019, it has evolved throughout the rest of 2019 and into 2020. The FBI noted significant spikes in...
Introduction Telsy Threat Intelligence team observed an attack against members of the Indian government or local institutions, which uses social engineering themes as an investigation for a cyber attack or...
SimJacker is a SIM card vulnerability that allows cybercriminals to compromise any cell phone and spy on victims by simply sending an SMS text message. What is SimJacker? The...
A Web Shell is a shell-like interface that enables a web server to be remotely accessed, often for the purposes of cyberattacks. What is a Web Shell? A Web...
Experts have identified a new Linux RAT that was dubbed “CronRAT”. It stands out through its hiding place, as it can be found in different tasks which have a schedule-timeline...
First seen in July 2021, BlackMatter is a Ransomware-as-a-Service (RaaS) tool that allows the ransomware‘s developers to profit from cybercriminal affiliates (i.e., BlackMatter actors) who deploy it against victims. BlackMatter...
Abstract Artificial intelligence can be qualified as an ambivalent tool since it lends itself to being used both as a means to create cyber defense products and, unfortunately, as a...
Initially, criminals exclusively used ransomware-related malware to restrict access to user data by encrypting files on individual or organizational devices. In exchange for the decryption key, the victims had to...
Dharma is a dangerous ransomware, identified as early as 2016, whose uniqueness lies entirely in its peculiar attack technique: the Dharma ransomware, in fact, is able to install itself on...
Telsy Threat Intelligence team identified a possible Grunt Covenant multi-stage attack aimed at a major telecommunications company in Iran. Introduction In this article, we will look at the different steps...
