Threats Tagged 'self-propagating'

A self-propagating npm worm dubbed ChainDrop infected over 400 packages downloaded hundreds of millions of times weekly, including popular packages like keyv and cacheable-request. The worm steals cloud credentials, npm and GitHub tokens, SSH keys, and sensitive developer data while extracting temporary credentials from GitHub Actions runner memory. It uses stolen npm publishing tokens to infect additional packages while maintaining their legitimate functionality. The attackers established persistence through VS Code and Claude Code configurations, employed blockchain-based command-and-control resolution via Ethereum smart contracts, and can execute attacker-supplied code. The operator demonstrated ability to silently reconfigure C2 infrastructure through Ethereum transactions without updating deployed instances. ChainDrop employs three layers of obfuscation and encryption, exfiltrates data through encrypted channels, and publishes stolen tokens in public commit messages.

An active supply chain attack has compromised the keyv and cacheable npm packages, affecting tens of millions of weekly downloads. The attack began on August 4, 2026, when the maintainer account Jaredwray was compromised, enabling attackers to publish malicious code across multiple packages. The malware deploys through a preinstall hook that downloads a Bun runtime and executes obfuscated payloads designed to harvest cloud credentials from AWS, GCP, Azure, HashiCorp Vault, Kubernetes, GitHub Actions, and npm tokens. The threat exhibits worm-like behavior by using stolen npm tokens to republish trojanized versions of additional packages beyond the original namespaces. Stolen credentials are exfiltrated to attacker-controlled GitHub repositories via DNS-resolved destinations, with persistence mechanisms planted in developer environments through .claude and .vscode hooks.

On August 4, 2026, a sophisticated supply chain attack compromised the keyv npm package maintainer, deploying CHAINDROP, a self-propagating worm that automatically backdoors packages using stolen npm credentials. Over 400 npm packages were infected, affecting more than 1.3 billion monthly downloads. The worm executes via preinstall hooks, deploys across Linux, macOS, and Windows platforms, and harvests credentials from over 300 patterns targeting AI tooling, cloud providers, GitHub tokens, and npm credentials. CHAINDROP uses Ethereum smart contracts for C2 resolution and propagates by publishing trojanized versions of packages the compromised maintainer can access. The payload is heavily obfuscated and contains Dune-themed references consistent with previous Shai-Hulud campaigns.

Attackers compromised a GitHub maintainer account controlling keyv, cacheable, flat-cache, and file-entry-cache Node.js packages that collectively receive over a billion downloads monthly. Malicious code was pushed directly to the main branch and automatically published to npm with valid signatures. A hidden preinstall script downloads a Bun runtime to execute an obfuscated payload that harvests npm, GitHub, AWS, Kubernetes, and Vault credentials, scans for SSH keys and environment files, and exfiltrates data to attacker-controlled GitHub repositories and Ethereum smart contracts. The worm then uses stolen npm tokens to infect additional packages autonomously. This self-propagating attack, tracked as ChainDrop, belongs to the Shai Hulud family responsible for previous campaigns targeting TanStack, Mistral AI, and OpenSearch packages in May 2026.

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.

GlassWorm is a groundbreaking self-propagating worm targeting VS Code extensions on OpenVSX marketplace. It employs invisible Unicode characters to conceal malicious code and utilizes a blockchain-based command and control infrastructure on Solana. The worm compromised seven OpenVSX extensions with 35,800 downloads, harvesting NPM, GitHub, and Git credentials, targeting cryptocurrency wallets, deploying SOCKS proxy servers, and installing hidden VNC servers. It spreads exponentially through the developer ecosystem using stolen credentials. The worm employs a triple-layer C2 setup involving Solana blockchain, direct IP connection, and Google Calendar. A new infected extension was also detected in Microsoft's VSCode marketplace. The campaign remains active, necessitating immediate security measures and audits of installed extensions.

MediumMalwareFranceGermanyUnited Kingdom+5#self-propagating#vscode#extension

A self-propagating malware called Shai-Hulud has infected over 500 npm packages, including one with over two million weekly downloads. The worm steals sensitive data, exposes private repositories, and hijacks victim credentials to spread further. It executes when an infected package is installed, collecting system information and GitHub tokens. The malware exfiltrates secrets from repositories, migrates private repositories to public, and self-replicates by infecting the victim's most downloaded packages. Notable infected libraries include those from CrowdStrike. The infection started with ngx-bootstrap version 18.1.4. Prevention measures include using specialized solutions for monitoring open-source components and implementing comprehensive security systems.

MediumCampaignGermanyFranceUnited Kingdom+4#supply-chain-attack#self-propagating#npm