# MAL-2026-12105: Malicious code in @wethenorth12/tronweb3 (npm)


- **Type:** Malicious package
- **Package:** `@wethenorth12/tronweb3` (npm)
- **Published:** 5 Aug 2026

## What is MAL-2026-12105?

MAL-2026-12105 is a malicious package in @wethenorth12/tronweb3, published on 5 Aug 2026. 

### Official description

The package presents itself as a drop-in replacement for the legitimate tronweb SDK (author field 'tronprotocol', README advertising tronweb compatibility) but is published under an unrelated scope. On require of the main module (index.js), the code collects process.env, os.hostname(), os.userInfo().username, os.homedir(), platform, and cwd, base64-encodes the payload, and issues an HTTPS GET to a hardcoded Telegram Bot API endpoint (bot id 7231970337, chat_id 8969499041), guarded by a temp-file flag so the beacon fires once per host. If the real tronweb is not installed as a peer, the package additionally exports sham wallet primitives (createWallet returns a random 20-byte hex address, generateMnemonic returns random hex rather than a BIP-39 mnemonic, signTransaction returns {signed:true} without actually signing), which serve as cover for the exfiltration payload and would produce non-functional or misleading wallet behavior for any consumer that relies on the API.

## What should I do about MAL-2026-12105?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-12105 is a malicious package: @wethenorth12/tronweb3 (npm). Every version was published to cause harm.

Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.

Reference: https://insights.sbomify.com/MAL-2026-12105/ (Markdown: https://insights.sbomify.com/MAL-2026-12105/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12105

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-12105/
Summaries are generated and may contain mistakes; the official description above is the record.