Malware in move-bcs-codec
The npm package move-bcs-codec was found to contain malware. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- move-bcs-codecnpm package
The npm package move-bcs-codec has been identified as containing malware. According to the advisory, any computer with this package installed or running should be considered fully compromised.\n\nThe malware grants full control of affected systems to an outside entity. All secrets and keys stored on compromised computers should be rotated immediately from a different, unaffected system.\n\nWhile the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise. Complete system remediation and security review is recommended.
Indicators of compromise
- Packages
- move-bcs-codec
Remediation
- Immediately isolate any system with move-bcs-codec installed from the network
- Remove the move-bcs-codec package from all affected systems
- Rotate all secrets, API keys, and credentials from a clean, unaffected computer
- Perform a complete security audit and malware scan of affected systems
- Review system logs for unauthorized access or activity
- Consider full system rebuild if the system handles sensitive data or credentials
Sources
- GitHub Advisory GHSA-3v7v-gr39-jf7v · GitHub Advisory Database
Cite this entry
"Malware in move-bcs-codec." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 6, 2026; last updated August 7, 2026. https://supplychainattack.org/incident/malware-in-move-bcs-codec-18f3f6
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- resolvedcritical
Malicious code in rust-testing-utils (npm)
The npm package rust-testing-utils contained malicious code that impersonates the pino logger and executes remotely-fetched code with arbitrary privileges. The package spawns a child process that decodes a hardcoded URL, fetches attacker-controlled content, and executes it via Function constructor with full module-loading capability.
npmCompromised packageMalicious commit - containedcritical
Malicious code in stillm4ddpocs-demo-sprocket (npm)
The npm package stillm4ddpocs-demo-sprocket version 999.9.12 contains malicious code that exfiltrates system and project metadata via multiple channels (HTTPS, HTTP, and DNS) to a hardcoded callback host. The package uses a high version number to exploit dependency-confusion attacks against organizations with internal packages of the same name.
npmCompromised packageDependency confusion - containedcritical
Malicious code in @syncraft-labs/react (npm)
The npm package @syncraft-labs/react contained obfuscated malicious code in its ESM distribution that implements the EtherHiding pattern, fetching and executing arbitrary code from an Ethereum smart contract via RPC endpoints. The tampering occurred post-build in the dist/index.js artifact.
npmCompromised package - containedcritical
Malware in hydration-dim-kit
Malware was discovered in the npm package hydration-dim-kit. Any computer with this package installed or running should be considered fully compromised. All secrets and keys must be rotated immediately from a different computer.
npmCompromised package