Tag: powershell
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New ClickFix Attack Wave Targets Windows Systems to Deploy StealC Stealer
A new wave of ClickFix attacks is targeting Windows users with fake Cloudflare-style CAPTCHA verification pages that trick victims into executing malicious PowerShell commands. This campaign delivers a multi-stage, fileless infection chain that ends with StealC, a powerful information stealer capable of harvesting credentials, cryptocurrency wallets, gaming accounts, emails, and detailed system fingerprints. The operation…
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ValleyRAT Masquerades as LINE Installer to Target Users and Harvest Login Credentials
A malware campaign where cybercriminals distribute a fake LINE messenger installer that secretly deploys the ValleyRAT malware to steal credentials and evade detection. Since early 2025, threat actors have increasingly used fraudulent software installers to deliver malware. This campaign shares techniques with previously discovered LetsVPN-themed attacks, including task-scheduler persistence, PowerShell-based evasion, and C2 communications via Hong Kong servers. Cybereason GSOC performed…
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This stealthy Windows RAT holds live conversations with its operators
Tags: access, data, detection, injection, malware, mitigation, monitoring, powershell, rat, reverse-engineering, theft, windowsRAT capabilities and stealer functionality: The .NET payload implements a remote access trojan that allows operators to interact directly with compromised systems. Unlike many commodity RATs that rely on periodic check-ins, this malware supports live command handling, enabling attackers to issue instructions and receive responses in near real-time.This interactive design allows operators to perform reconnaissance,…
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SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 82
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter KONNI Adopts AI to Generate PowerShell Backdoors Who Operates the Badbox 2.0 Botnet? Weaponized in China, Deployed in India: The SyncFuture Espionage Targeted Campaign Android Trojan Campaign Uses Hugging Face Hosting for RAT Payload…
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TAMECAT PowerShell Backdoor Targets Edge and Chrome: Login Credentials At Risk
Tags: backdoor, browser, chrome, credentials, cyber, defense, espionage, government, hacking, iran, login, microsoft, powershell, riskTAMECAT is a sophisticated PowerShell-based backdoor linked to APT42, an Iranian state-sponsored hacking group. It steals login credentials from Microsoft Edge and Chrome browsers while evading detection. Security researchers from Israel’s National Digital Agency detailed its modular design in recent SpearSpecter campaign analysis.”‹ APT42 deploys TAMECAT in long-term espionage operations against senior defense and government…
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APT Attacks Target Indian Government Using SHEETCREEP, FIREPOWER, and MAILCREEP – Part 2
Tags: access, ai, api, apt, attack, backdoor, backup, cloud, control, credentials, data, dns, email, exploit, github, google, government, group, india, infection, infrastructure, Internet, linux, malicious, malware, microsoft, monitoring, network, phishing, powershell, programming, service, tactics, threat, tool, update, windowsThis is Part 2 of our two-part technical analysis on the Gopher Strike and Sheet Attack campaigns. For details on the Gopher Strike campaign, go to Part 1.IntroductionIn September 2025, Zscaler ThreatLabz uncovered three additional backdoors, SHEETCREEP, FIREPOWER, and MAILCREEP, used to power the Sheet Attack campaign. In Part 2 of this series, ThreatLabz will…
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ClickFix Attacks Expand Using Fake CAPTCHAs, Microsoft Scripts, and Trusted Web Services
Cybersecurity researchers have disclosed details of a new campaign that combines ClickFix-style fake CAPTCHAs with a signed Microsoft Application Virtualization (App-V) script to distribute an information stealer called Amatera.”Instead of launching PowerShell directly, the attacker uses this script to control how execution begins and to avoid more common, easily recognized execution paths,” First seen on…
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DPRK’s Konni Targets Blockchain Developers With AI-Generated Backdoor
The North Korean threat group is using a new PowerShell backdoor to compromise development environments and target cryptocurrency holdings, according to researchers. First seen on darkreading.com Jump to article: www.darkreading.com/cyberattacks-data-breaches/dprks-konni-targets-blockchain-developers-ai-generated-backdoor
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North Korealinked KONNI uses AI to build stealthy malware tooling
Check Point links an active phishing campaign to North Koreaaligned KONNI, targeting developers with fake blockchain project docs and using an AI-written PowerShell backdoor. Check Point Research uncovered an active phishing campaign attributed to the North Korealinked KONNI group (aka Kimsuky, Earth Imp, TA406, Thallium, Vedalia, and Velvet Chollima). The operation targets software developers and engineers using fake project…
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Konni Hackers Deploy AI-Generated PowerShell Backdoor Against Blockchain Developers
Tags: ai, backdoor, blockchain, hacker, india, intelligence, korea, malware, north-korea, phishing, powershell, russia, threat, tool, ukraineThe North Korean threat actor known as Konni has been observed using PowerShell malware generated using artificial intelligence (AI) tools to target developers and engineering teams in the blockchain sector.The phishing campaign has targeted Japan, Australia, and India, highlighting the adversary’s expansion of the targeting scope beyond South Korea, Russia, Ukraine, and European nations, Check…
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Konni hackers target blockchain engineers with AI-built malware
The North Korean hacker group Konni (Opal Sleet, TA406) is using AI-generated PowerShell malware to target developers and engineers in the blockchain sector. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/konni-hackers-target-blockchain-engineers-with-ai-built-malware/
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PowerShell architect retires after decades at the prompt
After Microsoft, Google, and a long fight for automation, Jeffrey Snover hangs up his keyboard First seen on theregister.com Jump to article: www.theregister.com/2026/01/22/powershell_snover_retires/
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Ransomware gang’s slip-up led to data recovery for 12 US firms
Tags: access, attack, backup, breach, business, citrix, cloud, corporate, cyber, data, data-breach, detection, encryption, endpoint, exploit, finance, group, incident response, infosec, infrastructure, law, linux, network, phishing, powershell, ransom, ransomware, risk, software, spear-phishing, sql, threat, tool, veeam, vulnerabilityscrutinize and audit your backups. If you have a regular backup schedule, is there unexpected or unexplained activity? Von Ramin Mapp notes that crooks are known to time data exfiltration to match corporate off-site backups as a way to hide their work;monitor for encrypted data leaving your environments and see where it goes. Does this…
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ClearFake malware Exploits Proxy Execution to Run Malicious PowerShell Commands via Trusted Windows Feature
Tags: cyber, detection, endpoint, exploit, injection, malicious, malware, powershell, vulnerability, windowsA sophisticated evolution of the ClearFake malware campaign has emerged, deploying advanced evasion techniques that abuse legitimate Windows components to bypass endpoint detection systems. The operation, which has compromised hundreds of websites since August 2025, now leverages a command injection vulnerability in a trusted Windows script to silently execute malicious PowerShell code, while hosting its…
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Warum Microsoft-365-Konfigurationen geschützt werden müssen
Tags: access, authentication, backup, ciso, cloud, compliance, framework, least-privilege, mail, mfa, microsoft, office, powershell, risk, zero-trustLesen Sie, warum CISOs den M365-Tenant stärker in den Blick nehmen müssen.Im Jahr 2010 war Office 365 eine einfache Suite mit Office-Anwendungen und zusätzlicher E-Mail-Funktion. Das hat sich 15 Jahre später mit Microsoft 365 geändert: Die Suite ist ein wesentliches Element in den Bereichen Kommunikation, Zusammenarbeit und Sicherheit. Dienste wie Entra, Intune, Exchange, Defender, Teams…
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Threat Actors Abuse Browser Extensions to Deliver Fake Warning Messages
Threat intelligence researchers at Huntress have uncovered a sophisticated browser extension campaign orchestrated by the KongTuke threat actor group, featuring a malicious ad blocker impersonating the legitimate uBlock Origin Lite extension. The campaign weaponizes fake browser crash warnings to trick users into executing malicious PowerShell commands, ultimately delivering ModeloRAT, a previously undocumented Python-based remote access…
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PowerShell-Driven Multi-Stage Windows Malware Using Text Payloads
Security researchers have identified a sophisticated multi-stage malware campaign dubbed SHADOW#REACTOR that chains together obfuscated Visual Basic Script (VBS) execution, resilient PowerShell stagers, text-only payload delivery mechanisms, and .NET Reactorprotected in-memory loaders to deploy Remcos RAT while evading detection and analysis reliably. Initial infection begins when users execute a malicious VBS script, typically delivered through…
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RustyWater Rising: MuddyWater Drops PowerShell for Stealthy Rust Implants
The post RustyWater Rising: MuddyWater Drops PowerShell for Stealthy Rust Implants appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/rustywater-rising-muddywater-drops-powershell-for-stealthy-rust-implants/
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Malicious NPM Packages Deliver NodeCordRAT
IntroductionZscaler ThreatLabz regularly monitors the npm database for suspicious packages. In November 2025, ThreatLabz identified three malicious packages: bitcoin-main-lib, bitcoin-lib-js, and bip40. The bitcoin-main-lib and bitcoin-lib-js packages execute a postinstall.cjs script during installation, which installs bip40, the package that contains the malicious payload. This final payload, named NodeCordRAT by ThreatLabz, is a remote access trojan (RAT) with data-stealing capabilities. It is also possible to download bip40…
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Malicious NPM Packages Deliver NodeCordRAT
IntroductionZscaler ThreatLabz regularly monitors the npm database for suspicious packages. In November 2025, ThreatLabz identified three malicious packages: bitcoin-main-lib, bitcoin-lib-js, and bip40. The bitcoin-main-lib and bitcoin-lib-js packages execute a postinstall.cjs script during installation, which installs bip40, the package that contains the malicious payload. This final payload, named NodeCordRAT by ThreatLabz, is a remote access trojan (RAT) with data-stealing capabilities. It is also possible to download bip40…
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Fake MAS Windows activation domain used to spread PowerShell malware
A typosquatted domain impersonating the Microsoft Activation Scripts (MAS) tool was used to distribute malicious PowerShell scripts that infect Windows systems with the ‘Cosmali Loader’. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/fake-mas-windows-activation-domain-used-to-spread-powershell-malware/
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Blind Eagle Hackers Target Government Agencies Using PowerShell Scripts
Tags: access, cyber, cyberattack, cybersecurity, email, government, group, hacker, phishing, powershell, spear-phishing, threatColombian government institutions are facing a sophisticated multi-stage cyberattack campaign orchestrated by the BlindEagle threat group, which leveraged compromised internal email accounts, PowerShell scripts, and steganography to deploy remote access trojans on target systems, according to Zscaler ThreatLabz researchers. The cybersecurity firm discovered the spear-phishing operation in early September 2025, revealing that BlindEagle targeted agencies…
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React2Shell is the Log4j moment for front end development
What to look for: In an attack tracked by S-RM, immediately after the threat actor gained access to a targeted company’s network, they ran a hidden PowerShell command, establishing command and control (C2) by downloading a Cobalt Strike PowerShell stager, a tactic regularly used by red teamers, and installing a beacon to allow them to…
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React2Shell is the Log4j moment for front end development
What to look for: In an attack tracked by S-RM, immediately after the threat actor gained access to a targeted company’s network, they ran a hidden PowerShell command, establishing command and control (C2) by downloading a Cobalt Strike PowerShell stager, a tactic regularly used by red teamers, and installing a beacon to allow them to…
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BlindEagle Targets Colombian Government Agency with Caminho and DCRAT
Tags: access, attack, authentication, cloud, communications, control, cybercrime, defense, detection, dkim, dmarc, dns, email, encryption, flaw, government, group, infrastructure, injection, Internet, malicious, malware, microsoft, open-source, phishing, powershell, rat, service, spear-phishing, startup, tactics, threat, tool, update, usa, windowsIntroductionIn early September 2025, Zscaler ThreatLabz discovered a new spear phishing campaign attributed to BlindEagle, a threat actor who operates in South America and targets users in Spanish-speaking countries, such as Colombia. In this campaign, BlindEagle targeted a government agency under the control of the Ministry of Commerce, Industry and Tourism (MCIT) in Colombia using…
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Neuer Banking-Trojaner ‘Maverick”: BlueVoyant deckt raffinierte WhatsApp-Angriffe auf
Der Angriff beginnt typischerweise mit einer ZIP-Datei, die das Ziel per WhatsApp erhält. Darin versteckt sich eine vermeintliche Verknüpfung (.lnk), die beim Öffnen automatisch eine PowerShell-Routine startet. First seen on infopoint-security.de Jump to article: www.infopoint-security.de/neuer-banking-trojaner-maverick-bluevoyant-deckt-raffinierte-whatsapp-angriffe-auf/a43167/
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Hidden .NET HTTP proxy behavior can open RCE flaws in apps, a security issue Microsoft won’t fix
Tags: api, control, credentials, cve, endpoint, exploit, flaw, framework, ivanti, leak, microsoft, monitoring, ntlm, powershell, programming, rce, remote-code-execution, service, vulnerabilityServiceDescriptionImporter class,” he said. “That mechanism alone enabled successful exploitation in products from Barracuda, Ivanti, Microsoft and Umbraco, and it took only a few days of review to find working cases.” The .NET Framework and ASP.NET are among the most popular programming languages for enterprise applications. When a developer wants their application to communicate with…
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PowerShell 5.1 zeigt nach Dez. 2025 Update Sicherheitsabfrage bei Webseiten
Es ist in den Support-Beiträgen zum Dezember 2025-Patchday mit angegeben. Nach Installation der Windows-Updates zeigt die PowerShell 5.1 eine Sicherheitsabfrage, wenn auf den Inhalt von Webseiten zugegriffen werden soll. Mit dieser Maßnahme soll die Sicherheitslücke CVE-2025-54100 abgeschwächt werden. PowerShell-Schwachstelle CVE-2025-54100 … First seen on borncity.com Jump to article: www.borncity.com/blog/2025/12/11/powershell-5-1-zeigt-nach-dez-2025-update-sicherheitsabfrage-bei-webseiten/