Docker and Socket uncovered a supply chain compromise affecting Checkmarx KICS distribution channels. Attackers poisoned official Docker Hub images (tags v2.1.20, v2.1.21, alpine) and VS Code extensions (versions 1.17.0, 1.19.0), introducing unauthorized data exfiltration capabilities. The trojanized KICS binary collects and encrypts scan reports containing credentials from infrastructure-as-code files, transmitting them to external endpoints. Compromised VS Code extensions download mcpAddon.js via Bun runtime, harvesting GitHub tokens, AWS credentials, Azure tokens, npm configurations, and SSH keys. The malware creates public GitHub repositories for staging stolen data, injects malicious GitHub Actions workflows to capture repository secrets, and uses stolen npm credentials to identify writable packages for propagation. TeamPCP appears to claim responsibility for this multi-stage attack designed to steal developer credentials and propagate through CI/CD pipelines.
Malicious npm packages associated with Namastex.ai were compromised with malware exhibiting tradecraft similar to TeamPCP's CanisterWorm campaign. The attack targeted packages including @automagik/genie and pgserve, implementing install-time execution that harvests credentials, environment variables, SSH keys, cloud credentials, browser data, and crypto-wallet artifacts. The payload exfiltrates stolen data to both a conventional webhook at telemetry.api-monitor.com and an Internet Computer Protocol canister endpoint. It incorporates self-propagation logic to compromise additional npm packages using stolen publishing tokens and includes cross-ecosystem spreading capabilities targeting PyPI. The malware uses hybrid encryption with RSA and AES-256-CBC for data exfiltration. Multiple package namespaces were affected, suggesting shared infrastructure or coordinated compromise across publisher accounts.
In March 2026, trojans represented 21% of attachment-based threats, while phishing attacks using fake pages dropped from 42% to 15% month-over-month. Script-based malware increased significantly, with HTML at 14% and JavaScript at 11%. Compressed files including ZIP (14%), RAR (8%), and 7Z (5%) were common distribution methods. Document-based threats utilized PDF (13%), XLS (5%), and DOCX (2%) files. Attackers impersonated courier services like FedEx and DHL, as well as financial institutions including Hana Bank and Woori Bank. Distribution methods included HTML scripts and PDF hyperlinks leading to credential-stealing pages. Notable malware families included RemcosRAT and AgentTesla, with command-and-control infrastructure utilizing Telegram API tokens and external mail servers for data exfiltration.
Lazarus Group is conducting an active campaign targeting businesses through ClickFix attacks, distributing a newly identified macOS malware kit called "Mach-O Man". The attack begins with fake meeting invitations via Telegram, redirecting victims to fraudulent collaboration platforms impersonating Zoom, Microsoft Teams, or Google Meet. Victims are tricked into executing terminal commands that install the malware. The kit consists of Go-based Mach-O binaries including a stager, profiler, persistence mechanism, and stealer. The malware collects credentials, browser data, and macOS Keychain entries, exfiltrating data through Telegram. Primary targets include fintech, crypto, and high-value environments where macOS is prevalent. The campaign leverages social engineering and native macOS binaries to evade traditional EDR detection, ultimately enabling account takeover, unauthorized infrastructure access, and financial loss.
In early 2026, phishing attacks remain a top threat vector in security operations. This analysis covers a novel attack method exploiting Microsoft's OAuth 2.0 Device Authorization Grant (Device Code Flow) to compromise user accounts. Attackers use phishing emails containing Mailchimp's Mandrill service links to bypass security controls, leading victims to fake Adobe-themed websites. The sites abuse legitimate Microsoft authentication mechanisms to obtain access and refresh tokens, granting persistent delegated access to critical resources like Graph API, Teams, Outlook, and SharePoint. The technique leverages shared client IDs across tenants and family of client IDs (FOCI) for lateral movement. Two variants exist: one using external phishing infrastructure with dynamic code generation, and another relying solely on fake meeting invitations containing pre-generated device codes. The attack is particularly effective as it uses legitimate Microsoft services, making detection challenging.
A sophisticated phishing campaign is targeting YouTube creators using convincing fake copyright strike notifications. The attack dynamically pulls real channel data including profile pictures, subscriber counts, and recent videos to create personalized scare pages. Victims are funneled through a Browser-in-the-Browser attack displaying a fake Google sign-in that captures credentials. The operation functions as phishing-as-a-service, with multiple attackers sharing infrastructure and rotating domains to evade detection. Successful attacks result in complete Google account takeover, allowing hijackers to rebrand channels and livestream cryptocurrency scams to existing audiences. The kit automatically exempts channels with over three million subscribers to avoid detection by security teams.
Between April 6-9, 2026, multiple obfuscated malicious npm packages were identified as variants of the OtterCookie infostealer attributed to North Korean threat actors. The campaign employs a two-layer distribution strategy where benign wrapper packages clone legitimate libraries like big.js while pulling malicious dependencies containing the actual payload. Five malicious packages were identified, each containing obfuscated JavaScript files that execute via postinstall hooks. The toolchain steals credentials, files including Solana wallets and environment configurations, and exfiltrates data to Vercel-hosted C2 infrastructure. On Linux systems, it establishes persistence through SSH backdoor installation. The infrastructure overlaps with documented OtterCookie operations and connects to broader DPRK campaigns including Contagious Interview and Contagious Trader, demonstrating continued evolution in North Korean software supply chain attacks targeting developers.
A North Korean threat operation has published malicious packages across npm, PyPI, Go Modules, crates.io, and Packagist, impersonating legitimate developer tooling. The campaign uses GitHub aliases including golangorg and aokisasakidev to distribute staged malware loaders that contact actor-controlled infrastructure, retrieve payloads from Google Drive, and deliver platform-specific second-stage malware. The loaders are hidden behind normal-looking API functions in logging and utility libraries. Windows variants include full remote access trojans with capabilities for shell execution, keylogging, browser and wallet theft, sensitive file collection, and AnyDesk deployment. The operation demonstrates coordinated cross-ecosystem supply chain attacks with shared infrastructure patterns, reused extraction directories, and consistent staging logic across multiple programming languages.
CrySome is a sophisticated .NET-based remote access trojan designed for persistent command-and-control operations. It features advanced persistence mechanisms, including recovery partition abuse and offline registry modification, allowing it to survive system resets. The malware incorporates an aggressive defense evasion module, disabling security products and blocking updates. Key capabilities include command execution, file operations, surveillance, credential theft, and hidden virtual desktop control. CrySome's modular architecture and structured packet-based protocol enable a wide range of remote operations. Its emphasis on stealth, resilience, and comprehensive system control makes it a significant threat for long-term covert access to compromised environments.
A sophisticated phishing campaign targeting LinkedIn users has been identified. The attack uses fake LinkedIn message notifications to lure victims into clicking on malicious links. The emails closely mimic legitimate LinkedIn communications, including spoofed display names and formatting. Upon clicking, users are redirected to a convincing but fraudulent LinkedIn login page designed to steal credentials. The phishing page uses a deceptive domain name similar to 'LinkedIn' to further trick users. This campaign demonstrates the evolving tactics of cybercriminals in exploiting human trust and curiosity. The analysis emphasizes the importance of vigilance, source verification, and caution when interacting with seemingly routine notifications.
TeamPCP uploaded malicious versions of the telnyx Python SDK to PyPI, compromising a package with 750,000 monthly downloads. The attack uses a three-stage architecture: a trojanized package triggers a platform-specific loader, which downloads a second-stage payload hidden in a WAV file using steganography, deploying a credential harvester. The harvester steals various credentials, encrypts them, and exfiltrates to the attacker's C2. The attack works across major operating systems and spreads through Kubernetes clusters. This is part of a broader TeamPCP supply chain campaign that has targeted multiple packages over nine days. The sophisticated attack includes WAV and PNG steganography, hybrid encryption, Kubernetes lateral movement, and a full-featured RAT on Windows with advanced evasion techniques.
TeamPCP launched a sophisticated attack on the Telnyx Python SDK, publishing malicious versions 4.87.1 and 4.87.2 to PyPI. The attack represents an evolution from their previous LiteLLM campaign, incorporating WAV-based steganography, split-file code injection, and expanded platform support. The payload, activated on import, uses stealthy techniques to download and execute credential-stealing malware across Linux, macOS, and Windows systems. Key changes include the use of audio steganography to hide malicious code, improved evasion through split-file injection, and the addition of Windows support with Startup folder persistence. The attackers shifted from HTTPS to plaintext HTTP infrastructure, potentially exposing their activities to network monitoring. Organizations are advised to downgrade to the last clean version and treat affected systems as compromised.
Threat actors are exploiting tax season with numerous campaigns leveraging tax themes to deliver malware, remote monitoring tools, fraud attempts, and credential phishing. Over a hundred campaigns have been observed in 2026, with a notable increase in remote monitoring and management (RMM) payloads. Tactics include impersonating tax agencies, claiming expired documents, and requesting tax filing support. While primarily targeting the United States, campaigns have also been observed in Canada, Australia, Switzerland, and Japan. Notable actors include TA4922, a newly designated threat group delivering malware from the Winos4.0 ecosystem, and TA2730, focusing on credential phishing for financial institutions. Business email compromise actors are also using tax form lures to steal financial and personal data. These campaigns demonstrate the ongoing exploitation of timely and topical themes by cybercriminals to deceive users.
A supply chain poisoning attack on LiteLLM, a popular AI model gateway, was detected by NSFOCUS Technology CERT. The TeamPCP group compromised the Trivy security scanning tool used in LiteLLM's release process, allowing them to publish malicious versions 1.82.7 and 1.82.8 on PyPI. These versions contained credential-stealing programs that collected sensitive data and, if a Kubernetes cluster was detected, deployed privileged Pods and implanted persistent backdoors. The attack impacted numerous dependent packages and potentially affected millions of users. The incident highlights the growing risks in AI infrastructure and the need for robust supply chain security measures.
A new phishing campaign is targeting TikTok for Business accounts using adversary-in-the-middle (AitM) techniques. The attackers employ Cloudflare Turnstile to evade detection and create convincing lookalike pages impersonating TikTok for Business or Google Careers. Victims are tricked into clicking malicious links, leading to credential theft. The campaign aims to seize control of business accounts, which can be used for malvertising and malware distribution. Multiple domains are involved in hosting the phishing pages. Additionally, a separate campaign using SVG file attachments to deliver malware has been observed in Venezuela, with potential links to BianLian ransomware activity.
A fake website impersonating Avast antivirus is tricking users into infecting their computers with Venom Stealer malware. The site runs a fake virus scan, claims to find threats, and prompts users to download a malicious file disguised as a system cleaner. The malware, identified as part of the Venom Stealer family, steals browser credentials, session cookies, cryptocurrency wallets, and other sensitive data. It uses evasion techniques like direct system calls and debugger checks to avoid detection. The stolen information is exfiltrated to a command-and-control server disguised as an analytics service. This campaign demonstrates a classic scare-and-fix scam, exploiting users' trust in reputable security brands to deliver malware.
On March 19, 2026, Trivy, an open-source vulnerability scanner, was compromised in a sophisticated CI/CD supply chain attack. Threat actors, identified as TeamPCP, injected credential-stealing malware into official Trivy releases, affecting the core binary and GitHub Actions. The attack exploited mutable tags and commit identity spoofing on GitHub. The malware performed extensive credential harvesting, targeting cloud providers, Kubernetes secrets, and various application credentials. Microsoft Defender provides detection and investigation capabilities for this threat. Recommended mitigations include updating to safe versions, hardening CI/CD pipelines, enforcing least privilege, protecting secrets, and leveraging attack path analysis to reduce lateral movement risks.
The KICS GitHub Action, an open-source infrastructure as code security scanner by Checkmarx, was compromised by TeamPCP, the group behind the recent Trivy attack. Between 12:58 and 16:50 UTC on March 23, 35 tags were hijacked, exposing users to credential-stealing malware. The attack involved staging imposter commits and updating tags using a compromised identity. The malware uses a new C2 domain, creates a fallback repository, and adds Kubernetes-focused persistence code. Additionally, two OpenVSX extensions were compromised. The payload targets cloud provider credentials and installs persistence on non-CI systems. Security teams are advised to audit workflows, search for exfiltration artifacts, and implement long-term hardening measures.
A new supply chain attack targeting Trivy has compromised 75 out of 76 version tags in the aquasecurity/trivy-action GitHub repository. The attacker force-pushed these tags to serve malicious payloads, effectively turning trusted version references into a distribution mechanism for an infostealer. The malicious code executes within GitHub Actions runners, targeting sensitive data in CI/CD environments. It harvests secrets from runner process memory and the filesystem, encrypts the collected data, and exfiltrates it to an attacker-controlled endpoint or a fallback GitHub-based channel. The attack's scope is significant, potentially affecting over 10,000 workflow files on GitHub referencing this action.
During tax season, threat actors exploit the urgency of time-sensitive tax-related emails to trick targets into opening malicious attachments, scanning QR codes, or following link chains. Recent campaigns identified by Microsoft Threat Intelligence use lures around W-2 forms, tax forms, and impersonation of government tax agencies and financial institutions. These campaigns aim to harvest credentials or deliver malware, often using phishing-as-a-service platforms for convincing credential theft and MFA bypass. Notable tactics include using legitimate remote monitoring tools, targeting specific industries and roles like accountants, and employing sophisticated social engineering techniques. The campaigns leverage various file formats, legitimate infrastructure, and multiple user interactions to complicate detection.
