Malicious code in dynstrg-howto (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (800fab99d95f1a2cef6ebf269ca240bf60518735cfb58c7c24b6a8474c72ee77) package.json declares a preinstall hook that runs index.js on npm install. index.js collects the installer's hostname, username, home directory, DNS server list, and reads /etc/passwd and /etc/hosts, then HTTPS-POSTs the collected JSON to the hardcoded out-of-band endpoint idzskk7dl8mrfoqx6thyhegqbhha50tp.oastify.com (Burp Collaborator subdomain). Execution is automatic on default install; the destination is attacker-controlled and unrelated to any declared package purpose. ## Source: ghsa-malware (687ddbe581731d5da84cb2a0e04508c31995cbc7fdd378b53090ac8b9a51a0d2) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
AI Analysis
Technical Summary
The dynstrg-howto npm package version 1.0.1 includes a preinstall hook that executes index.js upon installation. This script harvests sensitive environment and system information such as the installer's hostname, username, home directory, DNS configuration, and reads critical system files (/etc/passwd and /etc/hosts). The collected data is exfiltrated to a hardcoded external domain controlled by an attacker. This behavior occurs automatically during a default npm install, representing a supply chain compromise through a malicious package.
Potential Impact
Sensitive system and user information is exposed to an attacker-controlled server during package installation, potentially leading to privacy breaches or further targeted attacks. The compromise occurs without user interaction beyond installing the package, increasing risk of unnoticed data exfiltration.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid installing dynstrg-howto version 1.0.1. Verify package integrity and source before installation. Monitor for updates or advisories from the package maintainer or npm registry regarding remediation. Patch status is not yet confirmed — check the vendor advisory or npm security advisories for current remediation guidance.
Malicious code in dynstrg-howto (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (800fab99d95f1a2cef6ebf269ca240bf60518735cfb58c7c24b6a8474c72ee77) package.json declares a preinstall hook that runs index.js on npm install. index.js collects the installer's hostname, username, home directory, DNS server list, and reads /etc/passwd and /etc/hosts, then HTTPS-POSTs the collected JSON to the hardcoded out-of-band endpoint idzskk7dl8mrfoqx6thyhegqbhha50tp.oastify.com (Burp Collaborator subdomain). Execution is automatic on default install; the destination is attacker-controlled and unrelated to any declared package purpose. ## Source: ghsa-malware (687ddbe581731d5da84cb2a0e04508c31995cbc7fdd378b53090ac8b9a51a0d2) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The dynstrg-howto npm package version 1.0.1 includes a preinstall hook that executes index.js upon installation. This script harvests sensitive environment and system information such as the installer's hostname, username, home directory, DNS configuration, and reads critical system files (/etc/passwd and /etc/hosts). The collected data is exfiltrated to a hardcoded external domain controlled by an attacker. This behavior occurs automatically during a default npm install, representing a supply chain compromise through a malicious package.
Potential Impact
Sensitive system and user information is exposed to an attacker-controlled server during package installation, potentially leading to privacy breaches or further targeted attacks. The compromise occurs without user interaction beyond installing the package, increasing risk of unnoticed data exfiltration.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid installing dynstrg-howto version 1.0.1. Verify package integrity and source before installation. Monitor for updates or advisories from the package maintainer or npm registry regarding remediation. Patch status is not yet confirmed — check the vendor advisory or npm security advisories for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12787
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735740bf8831d539153742
Added to database: 08/05/2026, 15:31:12 UTC
Last enriched: 08/05/2026, 16:56:02 UTC
Last updated: 09/08/2026, 04:37:17 UTC
Views: 18
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