# MAL-2026-12311: Malicious code in streak-calc-metrics (npm)


- **Type:** Malicious package
- **Package:** `streak-calc-metrics` (npm)
- **Published:** 5 Aug 2026
- **Also known as:** GHSA-7m7x-hmq7-rwm9

## What is MAL-2026-12311?

MAL-2026-12311 is a malicious package in streak-calc-metrics, published on 5 Aug 2026. 

### Official description

streak-calc-metrics@1.0.0 is presented as a native math accelerator for streak calculations but ships a bundled Linux ELF at dist/calc.bin that the main module unconditionally chmods and spawns detached at import time (cp.spawn(binaryPath, [], { stdio: 'pipe', shell: false, detached: true })). The ELF self-identifies as 'REDSHELL' and beacons to hardcoded C2 IP 217.60.77.63 with the protocol tag SECURE_BEACON|...|REDSHELL, providing a full remote shell over /bin/sh and /bin/bash. The implant downloads and executes arbitrary ELF binaries and shellcode over plain HTTP with TLS verification disabled from http://217.60.77.63/Others/<name> and http://217.60.77.63/SC/<name>, staging into /tmp/.elf_* or via memfd_create (syscall 319) and chmod +x before execution, with no hash or signature check. It exposes command handlers /ssh_keys, /creds, /dbfind, /env, and /dataextract <path> that harvest the installer's SSH keys, credential files, environment variables, and arbitrary filesystem paths, then exfiltrates them in chunks via POST /api/extract-receive using markers such as BIGEXTRACT_START and Destination: Loot_%s_%s_%s. Persistence is established by writing ~/.config/systemd/user/svc-update.service (Description='System Update Service', ExecStart=/proc/self/exe, Restart=always) and enabling it with systemctl --user daemon-reload && systemctl --user enable --now svc-update.service. The implant additionally exposes a remote-controlled SOCKS5 proxy (/socks start <port>) and arbitrary TCP port forwarding (/portfwd start <lport> <rhost> <rport>), turning the installer's host into a pivot into internal networks. The JS wrapper contains a cover story ('Native accelerator loaded and verified', 'Performance mode enabled') and an inverted SHA-256 integrity check against 4537b1189ce419f1a595cf47216c03f80e9170ce80dad8d9227a1e52f9cb3466 that never blocks execution.

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.

## What should I do about MAL-2026-12311?

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-2026-12311 is a malicious package: streak-calc-metrics (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-2026-12311/ (Markdown: https://insights.sbomify.com/MAL-2026-12311/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-12311

---
From sbomify Insights: https://insights.sbomify.com/MAL-2026-12311/
Summaries are generated and may contain mistakes; the official description above is the record.