Malicious code in @marketfront/madvpopup (npm)
The @marketfront/madvpopup npm package version 7.0.0 is part of a malicious campaign involving 25 packages published within a short time frame. It contains a heavily obfuscated postinstall script that executes automatically during npm install, harvesting sensitive credential files and environment variables from the host system. The stolen data is exfiltrated via encrypted HTTPS requests to a concealed command-and-control server. The package masquerades as a legitimate e-commerce frontend component and uses an internal-corporate namespace style to facilitate dependency confusion attacks against targeted organizations.
AI Analysis
Technical Summary
This threat involves the @marketfront/madvpopup npm package version 7.0.0, which includes a postinstall hook executing a 162KB obfuscated payload. The payload harvests approximately 20 sensitive credential files (including SSH keys, AWS credentials, Kubernetes configs, Docker configs, npm and git credentials, environment files, and bash history) and collects extensive environment and system metadata. The harvested data is compressed and exfiltrated over HTTPS with custom headers to an obfuscated remote endpoint, with additional DNS beaconing. The campaign shares tooling and infrastructure with a previous malicious campaign (@emcd-vue), indicating a persistent threat actor using rotating npm scopes and disposable maintainer emails. The package's code is non-functional beyond the postinstall script, which is designed to deceive via corporate namespace impersonation and dependency confusion.
Potential Impact
Systems that install @marketfront/madvpopup version 7.0.0 are at risk of having sensitive credentials and environment information stolen, including SSH keys, cloud service credentials, container and Kubernetes configurations, and other secrets. This can lead to unauthorized access to cloud resources, source code repositories, databases, and other critical infrastructure. The attack targets developer machines and CI environments, increasing the risk of widespread compromise within affected organizations.
Mitigation Recommendations
No official patch or fix is available for this malicious package. The package should be considered malicious and immediately removed from any projects or dependency trees. Organizations should audit their npm dependencies for packages published under the @marketfront scope and specifically version 7.0.0 of @marketfront/madvpopup. Developers should avoid installing packages from untrusted or suspicious namespaces and verify package provenance. Use of internal npm registries with strict access controls and dependency allowlists can help prevent dependency confusion attacks. Monitor for any signs of credential compromise and rotate affected credentials if exposure is suspected.
Malicious code in @marketfront/madvpopup (npm)
Description
The @marketfront/madvpopup npm package version 7.0.0 is part of a malicious campaign involving 25 packages published within a short time frame. It contains a heavily obfuscated postinstall script that executes automatically during npm install, harvesting sensitive credential files and environment variables from the host system. The stolen data is exfiltrated via encrypted HTTPS requests to a concealed command-and-control server. The package masquerades as a legitimate e-commerce frontend component and uses an internal-corporate namespace style to facilitate dependency confusion attacks against targeted organizations.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This threat involves the @marketfront/madvpopup npm package version 7.0.0, which includes a postinstall hook executing a 162KB obfuscated payload. The payload harvests approximately 20 sensitive credential files (including SSH keys, AWS credentials, Kubernetes configs, Docker configs, npm and git credentials, environment files, and bash history) and collects extensive environment and system metadata. The harvested data is compressed and exfiltrated over HTTPS with custom headers to an obfuscated remote endpoint, with additional DNS beaconing. The campaign shares tooling and infrastructure with a previous malicious campaign (@emcd-vue), indicating a persistent threat actor using rotating npm scopes and disposable maintainer emails. The package's code is non-functional beyond the postinstall script, which is designed to deceive via corporate namespace impersonation and dependency confusion.
Potential Impact
Systems that install @marketfront/madvpopup version 7.0.0 are at risk of having sensitive credentials and environment information stolen, including SSH keys, cloud service credentials, container and Kubernetes configurations, and other secrets. This can lead to unauthorized access to cloud resources, source code repositories, databases, and other critical infrastructure. The attack targets developer machines and CI environments, increasing the risk of widespread compromise within affected organizations.
Mitigation Recommendations
No official patch or fix is available for this malicious package. The package should be considered malicious and immediately removed from any projects or dependency trees. Organizations should audit their npm dependencies for packages published under the @marketfront scope and specifically version 7.0.0 of @marketfront/madvpopup. Developers should avoid installing packages from untrusted or suspicious namespaces and verify package provenance. Use of internal npm registries with strict access controls and dependency allowlists can help prevent dependency confusion attacks. Monitor for any signs of credential compromise and rotate affected credentials if exposure is suspected.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-6785
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a4c348427e9c797196072dc
Added to database: 07/06/2026, 23:04:36 UTC
Last enriched: 07/06/2026, 23:22:30 UTC
Last updated: 07/28/2026, 23:58:12 UTC
Views: 23
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