🛡️ MAL-2026-5525 — web3.js
Description
Malicious code in @solana-labs/web3.js (npm)
Source: amazon-inspector
Package @solana-labs/web3.js impersonates the legitimate @solana/web3.js and re-exports it as cover while running a malicious postinstall (node install.js). On npm install, install.js performs sandbox-evasion checks (hostname pattern scoring for Docker/AWS/CI runners, /proc/uptime, presence of strace/tcpdump/auditd, AWS metadata 169.254.169.254, security-tooling dependencies) and aborts if it detects analysis. Otherwise it enumerates installer secrets — ~/.ssh/id_rsa, ~/.aws/credentials, ~/.config/solana/id.json, .env files, and scrapes process.env for KEY/SECRET/MNEMONIC/NPM/GITHUB tokens — and harvests crypto material including ETH private keys (/0x[a-fA-F0-9]{64}/), Solana 64-byte arrays, and AWS keys. Stolen data is tagged [ETH]/[SOLANA]/[AWS]/[SSH]/[NPM]/[GITHUB] and exfiltrated to api.telegram.org/bot<token>/... using XOR-obfuscated bot token, chat ID, and HMAC auth secret embedded in install.js. install.js then enters a long-poll loop against Telegram getUpdates accepting commands /keys, /ssh, /env, /wallet, /sh <cmd>, and bare text, executing them via execSync (PowerShell on Windows) and returning output to the attacker — a full reverse-shell C2 backdoor. Persistence is established via a @reboot sleep 90 && node <path> crontab entry. A hardcoded Solana drain address D4hGgKKaBFZV1NUTWvYRwbpu8HHr3qmDfHyKCTLqbaE7 is present for wallet theft.
Affected software
MAL-2026-5525 is recorded against 1 package.
- @solana-labs/web3.js
Timeline and source
Published on 10 June 2026 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
research.jfrog.com (Web)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
www.npmjs.com (Package)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| @solana-labs/web3.js | — | — |
References
More MAL 2026 advisories
Browse all of MAL 2026 in the advisory index.
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