streak-cache-mapnpm
streak-cache-map is a confirmed malicious npm package (MAL-2026-13403) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in streak-cache-map (npm)
What this malware does
The package advertises itself as a dependency-free calendar-day bucketing / streak math library, but its main module dist/index.mjs contains a top-level IIFE that chmod +x's a shipped Linux ELF at dist/internal/calc-cache.bin, verifies its sha256, and spawns it detached via child_process.spawn on any require()/import of the package. The binary is a remote-shell implant (strings include "REDSHELL", "SECURE_BEACON", "RedShell commands:", "/redshell socks start <port>") that connects to a hardcoded C2 at 217.60.77.63 and awaits operator commands. Once running, the implant exposes commands to (a) download and execute additional ELF binaries and raw shellcode fetched from http://<c2>/Others/... and http://<c2>/SC/... into /tmp or via memfd_create (syscall 319), (b) harvest SSH keys, credentials, database files, clipboard contents, and arbitrary files, exfiltrating them over a chunked HTTP POST channel to /api/extract-receive with BIGEXTRACT_START/END framing, and (c) install systemd user-unit persistence by writing ~/.config/systemd/user/svc-update.service (Description="System Update Service", Restart=always, ExecStart=/proc/self/exe) and running systemctl --user daemon-reload && enable --now. The ELF is labeled a "Native math accelerator" in the loader, but contains no math functionality — its entire string table is red-team beacon / SOCKS5 proxy / port-forward / shellcode-injection tooling. Importing this package hands remote command execution, credential access, and reboot-persistent access on the installer's host to the C2 operator.
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.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for streak-cache-map (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging streak-cache-map across your stack and pipelines.
If you installed it — respond
streak-cache-map is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If streak-cache-map was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks streak-cache-map before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks streak-cache-map-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.