Malware

Pierluigi Paganini March 04, 2026
Data breach at University of Hawaiʻi Cancer Center impacts 1.2 Million individuals

A ransomware attack on the University of Hawaiʻi Cancer Center exposed personal data of 1.2 million people. A 2025 ransomware attack targeting the University of Hawaiʻi Cancer Center compromised the personal information of about 1.2 million individuals. The attack hit the University of Hawaiʻi Cancer Center on August 31, 2025, impacting servers that support research […]

Pierluigi Paganini March 02, 2026
APT37 combines cloud storage and USB implants to infiltrate air-gapped systems

North Korea-linked APT 37 used Zoho WorkDrive and USB malware to breach air-gapped networks in the Ruby Jumper campaign. North Korean group ScarCruft (aka APT37, Reaper, and Group123) deployed new tools in a campaign dubbed Ruby Jumper, using a backdoor that leverages Zoho WorkDrive for C2 and a USB-based implant to breach air-gapped systems. Zscaler ThreatLabz […]

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 February 28, 2026
Microsoft warns of RAT delivered through trojanized gaming utilities

Attackers spread trojanized gaming tools to deliver a stealthy RAT using PowerShell, LOLBins, and Defender evasion tactics. Threat actors are tricking users into running trojanized gaming utilities shared through browsers and chat platforms to deploy a remote access trojan. “Microsoft Defender researchers uncovered a campaign that lured users into running trojanized gaming utilities (Xeno.exe or […]

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
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 […]

Pierluigi Paganini February 23, 2026
Wormable XMRig campaign leverages BYOVD and timed kill switch for stealth

A wormable cryptojacking campaign spreads via pirated software, using BYOVD and a time-based logic bomb to deploy a custom XMRig miner. Researchers uncovered a wormable cryptojacking campaign that spreads through pirated software bundles to deploy a custom XMRig miner. The attack uses a BYOVD exploit and a time-based logic bomb to evade detection and maximize […]