Malicious code in @nasddatax/common (npm)
The npm package @nasddatax/common version 1.0.21 contains malicious code that executes attacker-controlled payloads on any machine that requires it. The package appends an obfuscated eval(atob(...)) loader that fetches commands from dynamically resolved IP addresses derived from Ethereum blockchain transactions. This allows the attacker to rotate command-and-control servers without republishing the package. The package masquerades as a common utility library with empty author and description fields, indicating it is an impostor package.
AI Analysis
Technical Summary
The @nasddatax/common npm package version 1.0.21 includes a malicious loader appended to its legitimate exports. Upon requiring the package, the loader decodes an Ethereum transaction's recipient address to obtain two IPv4 addresses. It then fetches XOR-obfuscated JavaScript payloads from these IPs over HTTPS, decodes a custom base64 payload header, and executes the payload via eval and a detached Node.js process. The code uses Unicode escapes to hide key strings related to HTTP requests and process spawning. This design enables attacker-controlled code execution on the installer's machine, with command-and-control endpoints dynamically updated on-chain without republishing the package. The package metadata suggests it is an impostor common-utilities package.
Potential Impact
Any application that installs or requires @nasddatax/common version 1.0.21 will execute attacker-controlled code on the host machine. This leads to full remote code execution capabilities for the attacker, potentially compromising the system, stealing data, or performing other malicious actions. The dynamic C2 server resolution via Ethereum transactions complicates detection and takedown efforts.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately remove and avoid installing @nasddatax/common version 1.0.21. Verify dependencies to ensure this package is not included transitively. Monitor for suspicious network connections to unknown IP addresses, especially those resolved from Ethereum blockchain data. Consider using package integrity verification and trusted sources for npm packages to prevent installation of impostor or malicious packages.
Malicious code in @nasddatax/common (npm)
Description
The npm package @nasddatax/common version 1.0.21 contains malicious code that executes attacker-controlled payloads on any machine that requires it. The package appends an obfuscated eval(atob(...)) loader that fetches commands from dynamically resolved IP addresses derived from Ethereum blockchain transactions. This allows the attacker to rotate command-and-control servers without republishing the package. The package masquerades as a common utility library with empty author and description fields, indicating it is an impostor package.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The @nasddatax/common npm package version 1.0.21 includes a malicious loader appended to its legitimate exports. Upon requiring the package, the loader decodes an Ethereum transaction's recipient address to obtain two IPv4 addresses. It then fetches XOR-obfuscated JavaScript payloads from these IPs over HTTPS, decodes a custom base64 payload header, and executes the payload via eval and a detached Node.js process. The code uses Unicode escapes to hide key strings related to HTTP requests and process spawning. This design enables attacker-controlled code execution on the installer's machine, with command-and-control endpoints dynamically updated on-chain without republishing the package. The package metadata suggests it is an impostor common-utilities package.
Potential Impact
Any application that installs or requires @nasddatax/common version 1.0.21 will execute attacker-controlled code on the host machine. This leads to full remote code execution capabilities for the attacker, potentially compromising the system, stealing data, or performing other malicious actions. The dynamic C2 server resolution via Ethereum transactions complicates detection and takedown efforts.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately remove and avoid installing @nasddatax/common version 1.0.21. Verify dependencies to ensure this package is not included transitively. Monitor for suspicious network connections to unknown IP addresses, especially those resolved from Ethereum blockchain data. Consider using package integrity verification and trusted sources for npm packages to prevent installation of impostor or malicious packages.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12323
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735747bf8831d53915a0db
Added to database: 08/05/2026, 15:31:19 UTC
Last enriched: 08/05/2026, 17:39:22 UTC
Last updated: 08/05/2026, 17:39:22 UTC
Views: 2
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