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Qilin Targets Windows Hosts With Linux-Based Ransomware

The attack by the one of the most impactful RaaS groups active today demonstrates an evasion strategy that can stump defenses not equipped to detect cross-platform threats.

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#windows#linux
⚡ Weekly Recap: WSUS Exploited, LockBit 5.0 Returns, Telegram Backdoor, F5 Breach Widens

Security, trust, and stability — once the pillars of our digital world — are now the tools attackers turn against us. From stolen accounts to fake job offers, cybercriminals keep finding new ways to exploit both system flaws and human behavior. Each new breach proves a harsh truth: in cybersecurity, feeling safe can be far more dangerous than being alert. Here’s how that false sense of security

Qilin Ransomware Combines Linux Payload With BYOVD Exploit in Hybrid Attack

The ransomware group known as Qilin (aka Agenda, Gold Feather, and Water Galura) has claimed more than 40 victims every month since the start of 2025, barring January, with the number of postings on its data leak site touching a high of 100 cases in June. The development comes as the ransomware-as-a-service (RaaS) operation has emerged as one of the most active ransomware groups, accounting for

Uncovering Qilin attack methods exposed through multiple cases

Cisco Talos investigated the Qilin ransomware group, uncovering its frequent attacks on the manufacturing sector, use of legitimate tools for credential theft and data exfiltration, and sophisticated methods for lateral movement, evasion, and persistence.

Microsoft Issues Emergency Patch for Critical Windows Server Bug

Microsoft initially fixed CVE-2025-59287 in the WSUS update mechanism in the October 2025 Patch Tuesday release, but the company has now issued a second, out-of-band update for the flaw, which is under attack in the wild.

Microsoft Issues Emergency Patch for Actively Exploited Critical WSUS Vulnerability

Microsoft on Thursday released out-of-band security updates to patch a critical-severity Windows Server Update Service (WSUS) vulnerability with a proof-of-concept (Poc) exploit publicly available and has come under active exploitation in the wild. The vulnerability in question is CVE-2025-59287 (CVSS score: 9.8), a remote code execution flaw in WSUS that was originally fixed by the tech giant

APT36 Targets Indian Government with Golang-Based DeskRAT Malware Campaign

A Pakistan-nexus threat actor has been observed targeting Indian government entities as part of spear-phishing attacks designed to deliver a Golang-based malware known as DeskRAT. The activity, observed in August and September 2025 by Sekoia, has been attributed to Transparent Tribe (aka APT36), a state-sponsored hacking group known to be active since at least 2013. It also builds upon a prior

Think passwordless is too complicated? Let's clear that up

We’ve relied on passwords for years to protect our online accounts, but they’ve also become one of the easiest ways attackers get in. Cisco Duo helps clear up some of the biggest passwordless myths.

ThreatsDay Bulletin: $176M Crypto Fine, Hacking Formula 1, Chromium Vulns, AI Hijack & More

Criminals don’t need to be clever all the time; they just follow the easiest path in: trick users, exploit stale components, or abuse trusted systems like OAuth and package registries. If your stack or habits make any of those easy, you’re already a target. This week’s ThreatsDay highlights show exactly how those weak points are being exploited — from overlooked

PhantomCaptcha RAT Attack Targets Aid Groups Supporting Ukraine

SentinelLABS’ research reveals PhantomCaptcha, a highly coordinated, one-day cyber operation on Oct 8, 2025, targeting the International Red Cross, UNICEF, and Ukraine government groups using fake emails and a Remote Access Trojan (RAT) linked to Russian infrastructure.