malware

Pierluigi Paganini March 01, 2026
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 86

Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Technical Deep Dive: The Monero Mining Campaign Operation Olalampo: Inside MuddyWater’s Latest Campaign   VShell and SparkRAT Observed in Exploitation of BeyondTrust Critical Vulnerability (CVE-2026-1731)   Operation MacroMaze: new APT28 campaign using basic tooling and legit […]

Pierluigi Paganini March 01, 2026
CVE-2025-64328 exploitation impacts 900 Sangoma FreePBX instances

About 900 Sangoma FreePBX systems were infected with web shells after attackers exploited a command injection flaw. Hundreds of Sangoma FreePBX instances are still infected with web shells following attacks that began in December 2025. Sangoma FreePBX is an open-source, web-based platform for managing Asterisk-powered VoIP phone systems. Maintained by Sangoma Technologies, it allows businesses […]

Pierluigi Paganini March 01, 2026
Security Affairs newsletter Round 565 by Pierluigi Paganini – INTERNATIONAL EDITION

A new round of the weekly Security Affairs newsletter has arrived! Every week, the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. Canadian Tire 2025 data breach impacts 38 million users Iran ’s Internet near-totally blacked out amid […]

Pierluigi Paganini February 27, 2026
Aeternum botnet hides commands in Polygon smart contracts

Aeternum botnet uses Polygon blockchain smart contracts for C&C, making its infrastructure harder to detect and disrupt. Qrator Labs researchers uncovered Aeternum, a botnet that runs its command-and-control infrastructure through smart contracts on the Polygon blockchain. By decentralizing its C2, the malware avoids traditional server-based takedowns and becomes far harder to disrupt or shut down, […]

Pierluigi Paganini February 26, 2026
UAT-10027 campaign hits U.S. education and healthcare with stealthy Dohdoor backdoor

UAT-10027 campaign is targeting U.S. education and healthcare sectors to deploy a new Dohdoor backdoor. Cisco Talos has identified a new threat cluster, tracked as UAT-10027, targeting U.S. education and healthcare organizations since at least December 2025 to deploy a previously unseen backdoor named Dohdoor. Initial access likely occurs through phishing, triggering a PowerShell script […]

Pierluigi Paganini February 26, 2026
Google GTIG disrupted China-linked APT UNC2814 halting attacks on 53 orgs in 42 countries

Google and partners disrupted UNC2814, a suspected China-linked group that hacked 53 organizations across 42 countries. Google, with industry partners, disrupted the infrastructure of UNC2814, a suspected China-linked cyber espionage group that breached at least 53 organizations in 42 countries. The group has been active since at least 2017, and was spotted targeting governments and […]

Pierluigi Paganini February 25, 2026
ShinyHunters cyberattack on CarGurus impacts 12.4 Million users

ShinyHunters leaked data from 12.4M CarGurus accounts, exposing personal information from the U.S.-based auto research and shopping platform. The ShinyHunters group published personal data from over 12 million CarGurus accounts. CarGurus is a U.S.-based digital automotive marketplace that helps users research, compare, and connect with sellers of new and used vehicles. Operating in the U.S., […]

Pierluigi Paganini February 25, 2026
Lazarus APT group deployed Medusa Ransomware against Middle East target

North Korea’s Lazarus Group used Medusa ransomware in an attack on an unnamed Middle East organization, researchers report. The North Korea-linked Lazarus APT Group, also known as Diamond Sleet and Pompilus, has been spotted deploying Medusa ransomware against an unnamed organization in the Middle East, according a new report from the Symantec and Carbon Black […]

Pierluigi Paganini February 24, 2026
Arkanix Stealer: AI-assisted info-stealer shuts down after brief campaign

Arkanix Stealer surfaced in late 2025 as a short-lived info-stealer, likely built as an AI-assisted experiment and quickly abandoned. Arkanix Stealer emerged in late 2025 as a short-lived information-stealing malware promoted on dark web forums. Researchers believe it was likely created as an AI-assisted experiment, suggesting the operators were testing automated development techniques rather than […]

Pierluigi Paganini February 24, 2026
Everest ransomware hits Vikor Scientific ‘s supplier, data of 140,000 patients stolen

Everest ransomware claims an attack on diagnostic firm Vikor Scientific (Vanta Diagnostics), exposing data of nearly 140,000 people. The Everest ransomware group has claimed responsibility for a cyberattack on Vikor Scientific, now operating as Vanta Diagnostics. The healthcare diagnostic firm disclosed a data breach impacting nearly 139,964 individuals, as reported by the US Department of […]