The previously unknown malware, dubbed NetamLoader, uses legitimate Microsoft software components to execute malicious code, evade security tools and download additional programs onto infected computers.
Introduction A couple of months ago, our research revealed a highly sophisticated infection chain and a complex .NET assembly-loading framework built on XAML markup, which strongly indicates a supply-chain attack targeting a custom Windows build used exclusively by government entities in Asia. The malicious framework has been labeled NetamLoader; at present, no attribution to any known APT group has been established. The sample came to light in the first half of 2026, when Kaspersky Security…
Group-IB uncovers MadApe, a previously undocumented Microsoft Device Code phishing kit that uses business-themed PDF lures, configurable redirects and fake document-sharing pages to trick victims into completing Microsoft Device Code authentication across a broad infrastructure cluster.
Microsoft SG
Serial number: AV26-028 Date: October 28, 2026 Audience This Alert is intended for IT professionals and managers. Purpose An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients. The Canadian Centre for Cyber Security ("Cyber Centre") is also available to provide additional assistance regarding the content of this Alert to recipients as requested. Details The…
A new UEFI bootkit named BlackX, deployed in an espionage campaign in early 2026, exploited the old Baton Drop vulnerability to bypass Secure Boot and load a malicious driver designed to interfere with security solutions from Kaspersky and Avast. [...]
EPSS 0.09 CVE-2022-21894 Kaspersky Avast Microsoft veřejná správa US RU
Huntress tracked a 10-week Microsoft 365 campaign pairing AiTM relays with token replay, rogue Entra devices, MFA tampering, and hidden inbox rules.
Microsoft US
<p>Automated sign-ins used the vendor's Entra application identity to request Microsoft Graph tokens across consenting tenants</p> Categories: Threat Research Tags: connectwise
ConnectWise (SkyKick) vendor credentials are being abused to access Microsoft 365 tenants. Disable the apps now and check your logs here.
È stato recentemente documentato l’utilizzo sistematico di tecniche di “consent phishing” volto al rilascio di consensi illeciti (illicit consent grants) ai danni di infrastrutture basate su Microsoft Entra ID e suite Microsoft 365.
Microsoft IT
In this article Uncovering the shadow world of a phishing kit ecosystem Storm-3119: YAM Store, the power broker Storm-2990: The Iron Man System phishing kit Downstream activity from Storm-2990 phishing kits Mitigation and protection guidance Microsoft Defender detections Over the past year, Microsoft uncovered a Chinese-language cybercriminal ecosystem, an interconnected network of phishing kit operators, developers, and an illicit marketplace selling tools and infrastructure for large-scale…
The FBI has seized seven domains used by Chinese state-sponsored hackers known as Flax Typhoon to operate two hacking tools, MicroScan and FishHub, used in attacks that breached critical infrastructure and other organizations worldwide. [...]
KEV ✓ · ransomware EPSS 1.00 CVE-2014-6278 CVE-2015-3306 CVE-2015-5477 CVE-2016-3081 CVE-2019-11510 CVE-2021-22205 CVE-2021-3199 CVE-2023-22894 Microsoft veřejná správa výroba a průmysl zdravotnictví školství US
A recent phishing campaign abused Microsoft Power BI links to deliver multiple rogue ScreenConnect clients.
The group is exploiting a variety of vulnerabilities impacting Microsoft SharePoint, according to a new report from Symantec Threat Hunter Team.
Microsoft US
Cisco Talos uncovered a cluster of activity we track as UAT-11587 targeting government and policy organizations across Asia, including in Taiwan, India, the Philippines, and Cambodia, to deliver a previously undocumented backdoor referred to as “Antino” in developer artifacts. Talos first observed UAT-11587 activity in September 2025. By July 2026, Talos had identified at least 16 affected or targeted institutional environments across eight Asian countries. Antino is a Rust-compiled Windows…
In this article Attack overviewTechnical analysisMitigation and protection guidanceReferencesLearn More Microsoft Security Research has identified malicious cloud activity associated with JADEPUFFER, a threat actor discovered by Sysdig in July 2026 and reported to be the first documented agentic ransomware operation. Our investigation found an extensive Azure-focused resource destruction activity using compromised service principals and cloud credential collection that could be used to…
Microsoft US
Microsoft US
In this article What is device code phishing?EvilTokens platform and operationsEvilTokens phishing emailsMitigation and protection guidanceMicrosoft Defender XDR detectionsHunting queries Following its emergence in February 2026, EvilTokens quickly became one of the most widely used phishing-as-a-service (PhaaS) platforms, providing cybercriminals with AI capabilities for tailoring phishing lures and analyzing compromised inboxes to identify high-value targets. This AI-powered cybercrime…
On September 9, 2026, Volexity published a blog post detailing the simultaneous use of multiple chained zero-day exploits in Google Chrome (CVE-2026-85046, CVE-2026-87491) and Microsoft Windows (CVE-2026-85880) by two different Chinese advanced persistent threat (APT) actors. Shortly after that blog post was published, Volexity discovered additional campaigns—this time from a third Chinese threat actor, tracked by Volexity under the alias UTA0565—that used the same chained exploits on September…
KEV ✓ EPSS 0.04 CVE-2026-85046 CVE-2026-85880 CVE-2026-87491 Google Microsoft veřejná správa US
Microsoft Security Research published an interesting blog post "TerminalFix campaign deploys a reverse tunnel through multistage intrusion" about a malware campaign. The aspect that I want to take a closer look at, is the fact that the threat actors used PNG files with steganography. I reached out to the researchers and they kindly shared the IOCs for the PNG files with me. The first image is a small PNG file (f5f1eb6d43dd61d5b069c250e5c666384f7417d0c95014773bf9edf8ff13bebe). Analysis with…
Microsoft US
Over the past year, our Global Emergency Response Team (GERT) has investigated several incidents involving the NightEagle group (APT-Q-95). This group has been active since at least 2023 and originally focused on organizations in Asia, as we reported previously. We have now identified attacks by the group targeting businesses in Russia. This post examines both known and new tools NightEagle used in its latest campaign. Initial access In most incidents, the attackers used compromised valid…
KEV ✓ · ransomware EPSS 1.00 CVE-2019-0708 CVE-2020-0688 Microsoft RU
Upozorňujeme na phishingovou kampaň zneužívající autentizační mechanismus Device Code Flow. Útočník pod záminkou připojení ke schůzce nebo videohovoru přes legitimní nástroje přiměje uživatele k autorizaci a přes kontrolovanou relaci dochází ke krádeži přístupového tokenu a následné kompromitaci uživatele.Device Code FlowDevice Code Flow je autentizační mechanismus navržený pro případy, kdy se uživatel přihlašuje na zařízení s omezenými možnostmi zadávání přihlašovacích údajů, například na…
Microsoft CZ
Elastic Security Labs has tracked REF9334, a Brazilian banking malware operation, since May 2025. Its toolkit is called KREMLIN (as named by the malware author, Kr3mlin4rt1st), though nothing about the operation is Russian. Lures impersonate twelve Brazilian banks; error messages and code comments are written in Portuguese, and the operators' Ethereum transactions cluster during São Paulo working hours. Over 15 months and seven campaigns, they built a malicious browser extension that installs…
Microsoft says threat actors linked to ShinyHunters, Helix, and other extortion gangs are using passkey and single sign-on-themed social engineering attacks to compromise corporate Microsoft accounts and steal data from Microsoft 365 services. [...]
Microsoft US
Every wave of technology excitement creates a new opportunity for cyberattackers, and AI is no exception. Microsoft Threat Intelligence has published research showing a growing set of campaigns that impersonate popular AI platforms and tools, including ChatGPT, Microsoft Copilot, DeepSeek, and Claude.1 The goal is to make phishing, search-driven malware campaigns, and malvertising—which is malicious advertising that uses online ads to lure users to harmful sites, downloads, or redirect…
Microsoft US
BlueMoon, a shared Chrome and Windows exploit kit, shows why “patch later” is becoming a dangerous gamble. Security updates are easy to put off. The browser still opens, Windows still works, and choosing to relaunch your browser or restart your computer later can feel harmless. But a newly documented exploit kit called “BlueMoon” shows how quickly patching delays can become dangerous. Proofpoint Researchers found four espionage groups using the same exploit chain against Chrome browsers running…
In this article Attack chain overviewAttributionMitigation and protection guidanceLearn more Microsoft Security Research is tracking active cloud-based intrusions spanning multiple accounts in which unusual sign-ins were followed by threat actor-added authentication methods, high-volume Microsoft Graph activity, SharePoint and OneDrive downloads, and email collection through REST APIs. Microsoft Security Research assesses that this sequence is consistent with automated collection from…
Microsoft US
A phishing-as-a-service framework called BigBear 2.0 has been used to bypass multi-factor authentication at 258 organizations and steal more than 5,000 Microsoft 365 credentials. [...]
Microsoft US
Introduction We continue tracking the activity of Toy Ghouls (also known as Bearlyfy, Laboo.boo, and Feral Wolf), a financially motivated group that has been targeting Russian organizations since 2025. The attackers initially relied exclusively on tools pulled from public GitHub repositories along with leaked Babuk and LockBit ransomware builders, later shifting to their own custom ransomware, GenieLocker. In early July 2026, we observed the group using a custom backdoor for the first time. We…
Microsoft RU
In this article What is ASCII smuggling?Writing a practical ASCII-smuggling signatureWhat we observed: ASCII smuggling repurposed for phishingWhat is known and what is newIs there a detection gap?Mitigation and protection guidanceReferencesLearn More Microsoft researchers observed a high-volume phishing campaign using invisible Unicode tag characters, a technique popularized in AI prompt injection research as ASCII Smuggling. Instead of using these characters to hide instructions from people…
In this article Risk to enterprise environmentsAttack chain overviewMitigation and response recommendationsLearn more Microsoft Threat Intelligence has observed a human-operated intrusion campaign that abuses Microsoft Teams external collaboration to impersonate IT or helpdesk personnel and socially engineer users into granting an interactive remote session. Once remote control is established via RMM tools, the threat actor uses PowerShell to download and silently install a malicious MSI…
Microsoft US
Microsoft has published details about a Windows malware campaign it calls TerminalFix. The social engineering used to infect people is very similar to what we’ve seen in ClickFix campaigns. A website visitor is presented with a fake Cloudflare CAPTCHA which, when clicked, secretly copies a malicious command to their clipboard. Then they receive instructions on what they need to do to “prove they are human,” when in reality they are being instructed to execute the malicious command. After…
Microsoft US
A new ClickFix variant dubbed TerminalFix uses fake Cloudflare CAPTCHA prompts on compromised websites to trick victims into running malicious PowerShell commands in Windows Terminal. [...]
Learn how the Spring Ring campaign abuses Microsoft Teams and voice phishing to deploy malware and target enterprise domain controllers. The post Spring Ring: An Inside Look at Voice Phishing Campaigns in Microsoft Teams appeared first on Unit 42.
Microsoft US
In this article Attack chain overviewMitigation and protection guidanceLearn more Microsoft Threat Intelligence has observed a TerminalFix campaign, a variant of ClickFix, targeting organizations across multiple industries. The campaign uses compromised websites to display a fake Cloudflare CAPTCHA verification overlay that tricks users into copying and executing a malicious PowerShell command. While traditional ClickFix campaigns direct victims to the Windows Run dialog, TerminalFix campaigns…
CISA added CVE-2022-0995 to the Known Exploited Vulnerabilities catalog. Affected product: Linux Kernel. Remediation due date: 2026-09-09.
KEV ✓ EPSS 0.09 CVE-2022-0995 Linux Microsoft veřejná správa školství média US
We identified a network of 41 websites impersonating popular games and Windows software, all designed to push visitors towards the same Download Studio installer. The sites advertise everything from Counter-Strike, Half-Life, Fallout, Roblox, PUBG, and The Witcher to VLC, 7-Zip, Paint.NET, VMware, Total Commander, and Foxit PDF. They go to surprising lengths to look convincing, using accurate product information, genuine developer resources, and even real download links. But the link you see…
Microsoft US
In this article The CaptiveCrunch campaignStorm-2945 and Midnight BlizzardCaptiveCrunch tradecraft and toolingHow to protect against CaptiveCrunch activityMicrosoft Defender detections and hunting guidanceIndicators of compromise Since early May 2026, Microsoft Threat Intelligence has observed Storm-2945, a sub-cluster of Midnight Blizzard, conducting widespread but targeted traffic manipulation attacks involving hospitality sector networks served by captive portals worldwide. Despite some…
A previously undocumented Windows loader tracked as OXLOADER is delivering the CASTLESTEALER infostealer via malicious Google Ads, with low detection rates across static engines and sandbox detonations. The loader uses several obfuscation layers (control-flow flattening, opaque predicates, mixed Boolean-Arithmetic), self-modifying decryption stubs, and abuses the Windows .reloc section to stage shellcode. Elastic Security Labs identified OXLOADER in an active campaign targeting one of our…
Tycoon 2FA is currently the most prolific Phishing-as-a-Service (PhaaS) platform among AiTM phishing kits. First observed in August 2023 and attributed to Storm-1747 (per Microsoft Threat Intelligence), the kit provides turnkey adversary-in-the-middle (AiTM) capabilities that bypass multi-factor authentication and steal authenticated session tokens from Microsoft 365 and Google Workspace accounts. At its peak, Tycoon 2FA accounted for roughly 62% of phishing attempts blocked by Microsoft,…