streak-map-cache
Dependency-free calendar-day bucketing and streak math primitives, with an optional Node-only on-disk store.
This report shows the evidence for streak-map-cache@1.0.0. 1 of 2 known versions is blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiSource inspection confirms an import-time hidden executable with concrete backdoor, exfiltration, and persistence functionality. No install hook is needed because normal application import activates it.
Static reason
No blocking static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
Any runtime import of streak-map-cache's root entrypoint.
Impact
Remote code execution, SSH/key and system-data collection, exfiltration, and persistence.
Mechanism
import-time detached backdoor binary execution
Attack narrative
The advertised JavaScript math functions do not depend on the native accelerator, but dist/index.mjs chmods and launches its pinned ELF during import in detached mode. Static binary strings expose a remote-control toolkit: TLS/network connections, shell and executable payload retrieval, SSH-key collection, uploads, and cron/bashrc/systemd persistence. This is concealed malware rather than a calendar-math dependency.
AI rationale
Source inspection confirms an import-time hidden executable with concrete backdoor, exfiltration, and persistence functionality. No install hook is needed because normal application import activates it.
Evidence
package.jsondist/index.mjsdist/internal/daymath.mjsdist/internal/calc-map.bindist/store.mjs/tmp~/.ssh~/.bashrc/etc/ssh
Network endpoints2
217.60.77.63litterbox.catbox.moe/resources/internals/api.php
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- dist/index.mjs executes calc-map.bin on every root import.
- The binary is detached after chmod 0755, not used by the JS day math.
- calc-map.bin embeds TLS, socket, shell, fork, exec, and payload-download routines.
- Binary strings show remote payload retrieval from 217.60.77.63.
- Binary includes SSH-key collection, file upload, and cron/bashrc/systemd persistence commands.
- The binary hash is pinned by the importer, deliberately preserving this payload.
Evidence against
- package.json has no npm lifecycle scripts.
- dist/store.mjs only implements explicit temp-directory JSON storage.
- dist/internal/daymath.mjs provides the advertised math independently.
Behavioral surface
ChildProcessCryptoFilesystemShell
Source & flagged code
2 flagged · loading sourcedist/internal/calc-map.binView file
•path = dist/internal/calc-map.bin
kind = native_binary
sizeBytes = 63616
magicHex = [redacted]
Medium
dist/index.mjsView file
•matchType = malicious_source_fingerprint_signature
signature = 5501fa102f254897
signatureType = suspicious_hashes
sourceLabel = final_verdict:malicious
matchedPackage = streak-cache-map@1.0.0
matchedPath = dist/index.mjs
matchedIdentity = npm:c3RyZWFrLWNhY2hlLW1hcA:1.0.0
similarity = 1.000
shingleOverlap = 2
summary = package final verdict is malicious
High
Known Malware Source Fingerprint Signature
Source fingerprint signature matches a known malicious package signature; route for source-aware review.
dist/index.mjsView on unpkgFindings
1 High1 Medium1 Low
HighKnown Malware Source Fingerprint Signaturedist/index.mjs
MediumShips Native Binarydist/internal/calc-map.bin
LowFilesystem
Affected versions and remediation
This report applies to streak-map-cache@1.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing streak-map-cache@1.0.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.