Malicious code in @syncraft-labs/core (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (0efe219063a966d0d2025d6c3274cbc7e9f3c0b3a1e9cdf81c7adf6dbae4d4ac) The ESM build shipped at dist/index.js contains a heavily obfuscated payload (hex-identifier string-array + rotator produced by an obfuscator.io-style tool) injected into the body of isDevMode(), which executes on every `import`/`require` of the package. The injected loader captures Node internals onto globalThis (globalThis.r = require, globalThis.m = module, globalThis.i = "A12-synd"), then uses http/https to query Ethereum JSON-RPC endpoints (eth.drpc.org, ethereum-rpc.publicnode.com, eth-mainnet.public.blockscout.com) and an Etherscan-style txlist API for a hardcoded attacker address (0xa322E5f3...), decodes and zlib-decompresses payload bytes from transaction data, and executes them via child_process.spawn. The CJS build of the same source is clean, indicating a targeted injection into the ESM entry rather than a bundler artifact. Any process importing this package fetches attacker-controlled code from a mutable on-chain dead-drop and runs it, giving the publisher arbitrary remote code execution on the installer's host with full Node capability handed to the second stage via the globalThis handoff. ## Source: ghsa-malware (3ef1bc02a0593d257249d740d38a6ccdbd0464272090c4c94dba7eb31113bbda) 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 ESM build of @syncraft-labs/core version 0.4.1 contains a heavily obfuscated payload injected into the isDevMode() function. This payload captures Node.js internals onto the globalThis object, then queries multiple Ethereum JSON-RPC endpoints and an Etherscan-style API for transaction data associated with a hardcoded attacker address. It decodes and decompresses this data, then executes it via child_process.spawn, resulting in arbitrary remote code execution on any host importing this package. The CommonJS build is unaffected, indicating a deliberate targeted compromise of the ESM entry point rather than a bundler artifact.
Potential Impact
Any process importing the ESM build of @syncraft-labs/core version 0.4.1 will execute attacker-controlled code with full Node.js capabilities. This allows the attacker to run arbitrary commands on the host system, potentially leading to full system compromise, data theft, or further malicious activity. The attack leverages a mutable on-chain dead-drop mechanism to deliver payloads, making detection and mitigation more complex.
Mitigation Recommendations
No official patch or remediation is currently available. Users should avoid using version 0.4.1 of @syncraft-labs/core, especially its ESM build (dist/index.js). Consider removing or replacing this package from your projects. Monitor vendor advisories for updates or fixes. Since the CommonJS build is clean, using that build instead may mitigate the risk temporarily, but full remediation requires vendor action.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-14367
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a8af9a3acd9273b49f32ef3
Added to database: 08/23/2026, 13:46:11 UTC
Last enriched: 08/23/2026, 13:50:01 UTC
Last updated: 10/02/2026, 14:14:34 UTC
Views: 65
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