Malicious code in streak-calc-metrics (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (91b37a5aa06b2d75f250bd23ce01f2667646c1aa7609ec2323f226842e043e9d) [email protected] 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. ## Source: ghsa-malware (96488efc57092e2b1f373623a88bf26607c9ece7ed95270327febc6b536d0d01) 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.
AI Analysis
Technical Summary
The streak-calc-metrics npm package version 1.0.0 includes a bundled Linux ELF binary (dist/calc.bin) identified as 'REDSHELL'. Upon import, the package changes permissions and spawns this binary detached. REDSHELL connects to a hardcoded IP (217.60.77.63) using a custom protocol, providing a full remote shell over /bin/sh and /bin/bash. It downloads and executes arbitrary ELF binaries and shellcode over unverified HTTP connections. The implant exposes command handlers to steal SSH keys, credentials, environment variables, and arbitrary filesystem data, exfiltrating them via HTTP POST requests. Persistence is established by creating and enabling a systemd user service named svc-update.service. Additionally, the implant offers a remote-controlled SOCKS5 proxy and TCP port forwarding, enabling lateral movement. The JavaScript wrapper contains misleading messages and an ineffective SHA-256 integrity check that does not block execution.
Potential Impact
This malicious package enables attackers to gain full remote shell access on infected Linux hosts, execute arbitrary code, steal sensitive credentials and environment data, maintain persistence, and pivot into internal networks via proxy and port forwarding. This compromises confidentiality, integrity, and availability of affected systems.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately uninstall [email protected] and avoid using this package. Monitor for and remove the svc-update.service systemd user service if present. Block network communications to the hardcoded C2 IP 217.60.77.63. Verify package integrity and source before installation. Patch status is not yet confirmed — check the vendor advisory or trusted security sources for updates.
Malicious code in streak-calc-metrics (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (91b37a5aa06b2d75f250bd23ce01f2667646c1aa7609ec2323f226842e043e9d) [email protected] 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. ## Source: ghsa-malware (96488efc57092e2b1f373623a88bf26607c9ece7ed95270327febc6b536d0d01) 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.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The streak-calc-metrics npm package version 1.0.0 includes a bundled Linux ELF binary (dist/calc.bin) identified as 'REDSHELL'. Upon import, the package changes permissions and spawns this binary detached. REDSHELL connects to a hardcoded IP (217.60.77.63) using a custom protocol, providing a full remote shell over /bin/sh and /bin/bash. It downloads and executes arbitrary ELF binaries and shellcode over unverified HTTP connections. The implant exposes command handlers to steal SSH keys, credentials, environment variables, and arbitrary filesystem data, exfiltrating them via HTTP POST requests. Persistence is established by creating and enabling a systemd user service named svc-update.service. Additionally, the implant offers a remote-controlled SOCKS5 proxy and TCP port forwarding, enabling lateral movement. The JavaScript wrapper contains misleading messages and an ineffective SHA-256 integrity check that does not block execution.
Potential Impact
This malicious package enables attackers to gain full remote shell access on infected Linux hosts, execute arbitrary code, steal sensitive credentials and environment data, maintain persistence, and pivot into internal networks via proxy and port forwarding. This compromises confidentiality, integrity, and availability of affected systems.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately uninstall [email protected] and avoid using this package. Monitor for and remove the svc-update.service systemd user service if present. Block network communications to the hardcoded C2 IP 217.60.77.63. Verify package integrity and source before installation. Patch status is not yet confirmed — check the vendor advisory or trusted security sources for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12311
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735754bf8831d53915aef0
Added to database: 08/05/2026, 15:31:32 UTC
Last enriched: 08/05/2026, 17:52:50 UTC
Last updated: 09/18/2026, 02:25:49 UTC
Views: 56
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