map-streak-kit

GHSA-2fcq-4c2w-gvm3

Malicious code in map-streak-kit (npm)

Details

**Severity:** Critical

**Affected versions:** `= 1.0.0`

## Source: amazon-inspector (80727943437a7e22116b369c010fc965c4854a0c58a053504c4bc55555e90dd4)
On import, dist/index.mjs chmods 0755 and spawns the bundled Linux x86_64 binary dist/internal/calc-math.dat as a detached background process. The binary is a RedShell-style remote-access implant: it beacons to hardcoded C2 217.60.77.63, executes /bin/sh commands, drops and runs additional ELFs and shellcode fetched from the C2, offers SOCKS5 proxying and TCP port forwarding, installs systemd --user persistence (svc-update.service), and exfiltrates files via POST /api/extract-receive. Implant commands /ssh_keys, /creds, /dbfind, /clipboard, /env, and /dataextract harvest installer-side secrets (SSH private keys, stored credentials, clipboard, environment) and upload them to the same C2 through a chunked BIGEXTRACT upload routine. Package name, README, and inline comments describe the ELF as a 'native math accelerator' for calendar/streak math, but the pure-JS daymath.mjs never invokes the binary; the shipped SHA-256 'integrity check' (4537b118...3466) pins this specific implant, so it functions as anti-tamper for the payload rather than a security control.

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/f4865d38bdd8cf89a75895cd20168baaaa03aea4/osv/malicious/npm/map-streak-kit/MAL-2026-13632.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/f4865d38bdd8cf89a75895cd20168baaaa03aea4/osv/malicious/npm/map-streak-kit/MAL-2026-13632.json
- https://www.npmjs.com/package/map-streak-kit/v/1.0.0
- https://github.com/advisories/GHSA-2fcq-4c2w-gvm3

Compromised versions (1)

= 1.0.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.