Skip to content
supplychainattack.orgSupply chain attack incident catalog
containedcritical

Malicious code in @antv/f6-hammerjs (npm)

The npm account `atool` was compromised and used to publish 631 malicious versions across 314 packages, including @antv/f6-hammerjs, in a 22-minute automated burst. Each version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials and establishes persistence via CI/CD workflows and system daemons.

ShareXLinkedInHacker News
Disclosed
Last updated
Blast radius
631 malicious versions across 314 npm packages; widespread credential theft affecting AWS, GitHub, npm, GCP, Azure, Kubernetes, SSH, Docker, databases, Stripe, and Slack
Ecosystems
npm
Attack vectors
Account takeoverCompromised package
Threat actor
Mini Shai HuludTeamPCP
Affected entities
  • @antv/f6-hammerjsMalicious preinstall hook injected; part of Mini Shai-Hulud campaign

A threat actor compromised the npm account atool and launched the "Mini Shai-Hulud" supply chain attack campaign, publishing 631 malicious versions across 314 npm packages in an automated 22-minute burst. The @antv/f6-hammerjs package was among those compromised.

Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun script. The script uses the GitHub API as a covert exfiltration channel to steal credentials, including AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes service account tokens, SSH keys, Docker auth configs, database connection strings, Stripe keys, and Slack tokens. Stolen credentials are committed to attacker-controlled repositories following Dune-themed naming patterns.

Beyond credential theft, the malicious code establishes persistence through CI/CD workflow injection (a GitHub Actions workflow named Run Copilot that dumps all secrets via toJSON(secrets)), AI agent session hooks, and a system daemon named kitty-monitor. The attack was detected by multiple security sources including Amazon Inspector and Google Open Source Security.

The incident is part of the ongoing "Mini Shai-Hulud is back" worm campaign attributed to the TeamPCP threat actor.

Indicators of compromise

Packages
  • @antv/f6-hammerjs

Remediation

  • Immediately revoke all credentials (AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes tokens, SSH keys, Docker auth configs, database credentials, Stripe keys, Slack tokens) that may have been exposed
  • Remove all malicious versions of affected packages from your dependency tree and update to clean versions
  • Audit CI/CD workflows for unauthorized `Run Copilot` workflows or other suspicious GitHub Actions
  • Check for and remove the `kitty-monitor` system daemon from affected systems
  • Review git commit history for suspicious commits to attacker-controlled repositories with Dune-themed names
  • Implement npm package verification and integrity checks in your build pipeline
  • Monitor for signs of persistence mechanisms and unauthorized access in logs
  • Consider using npm audit and supply chain security tools to detect similar compromises

Sources

  1. GitHub Advisory GHSA-93h7-g78h-gv9j · GitHub Advisory Database

Cite this entry

"Malicious code in @antv/f6-hammerjs (npm)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 26, 2026; last updated July 26, 2026. https://supplychainattack.org/incident/malicious-code-in-antv-f6-hammerjs-npm-1g11ro

Suggest a correction

Found an error or have a newer source? Corrections to factual errors take priority over new entries.

Related incidents

  1. containedcritical

    Malicious code in @antv/f-wx (npm)

    The npm account `atool` was compromised and used to publish 631 malicious versions across 314 packages, including @antv/f-wx. Each version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials via the GitHub API and establishes persistence through CI/CD workflow injection and system daemons.

    Mini Shai HuludTeamPCPnpmOtherAccount takeoverCompromised packageMalicious commit
  2. containedcritical

    Malicious code in @antv/g-web-components (npm)

    A threat actor compromised the npm account 'atool' and published 631 malicious versions across 314 npm packages in a 22-minute automated burst, including @antv/g-web-components. Each malicious version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials and establishes persistence via CI/CD workflow injection and system daemons.

    Mini Shai HuludnpmOtherAccount takeoverCompromised packageMalicious commit
  3. containedcritical

    Malicious code in @antv/dipper-hooks (npm)

    The npm account `atool` was compromised and used to publish 631 malicious versions across 314 npm packages, including @antv/dipper-hooks, in an automated 22-minute burst. Each malicious version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials (AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes tokens, SSH keys, Docker configs, database strings, Stripe keys, Slack tokens) via the GitHub API and establishes persistence through CI/CD workflow injection and system daemons.

    Mini Shai HuludnpmOtherAccount takeoverCompromised packageMalicious commit
  4. containedcritical

    Malicious code in @antv/g-plugin-webgl-device (npm)

    A threat actor compromised the npm account `atool` and published 631 malicious versions across 314 npm packages, including @antv/g-plugin-webgl-device, in a 22-minute automated burst. Each malicious version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials via the GitHub API and establishes persistence through CI/CD workflow injection and system daemons.

    Mini Shai HuludnpmAccount takeoverCompromised package