@byteplus/ark-cli@1.0.27
BytePlus Ark command-line interface
AI Security Review
scanned 1mo ago · by lpm-firewall-aiThis is not proven malware, but automatic download and execution of an unavailable native payload leaves a concrete unresolved install-time code-execution risk. The visible safeguards reduce the likelihood of abuse but cannot establish the downloaded binary's behavior.
Static reason
One or more suspicious static signals were detected.
Trigger
npm postinstall during package installation.
Impact
A compromised or incorrectly trusted remote artifact could execute with the installing user's permissions.
Mechanism
Verified remote binary download followed by install-time execution.
AI rationale
This is not proven malware, but automatic download and execution of an unavailable native payload leaves a concrete unresolved install-time code-execution risk. The visible safeguards reduce the likelihood of abuse but cannot establish the downloaded binary's behavior.
Evidence
package.jsonscripts/postinstall.jsmanifest.jsonbin/arkcli-${platform}-${arch}${ext}bin/arkcli-${platform}-${arch}${ext}.download-${process.pid}bin/arkcli-${platform}-${arch}${ext}.backup
Network endpoints2
sf16-sg.tiktokcdn.comgithub.com/byteplus-sdk/ark-cli/releases/download/
Decision evidence
public snapshotAI called this Suspicious at 86.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- The install hook downloads a platform binary from remote CDN or GitHub sources and then executes it during installation.
- The hook runs the downloaded binary with a connection refresh command after installation.
- The remote artifact is hash-checked and written only inside this package, which limits but does not remove the opaque-binary install-time execution risk.
Evidence against
- The manifest pins SHA-256 digests for each platform artifact.
- The installer requires HTTPS and constrains the GitHub fallback to this project's release path.
- No source code harvests credentials, reads arbitrary project files, or sends collected data to a server.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
8 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/postinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkg15"scripts": {
"postinstall": "node scripts/postinstall.js"
},
Medium
Suspicious Lifecycle Evidence
The install hook downloads a platform binary from remote CDN or GitHub sources and then executes it during installation.
package.jsonView on unpkg · L15scripts/postinstall.js#virtual:normalized:round1View file
Findings
2 High8 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighSemantic Analysis Limitedscripts/postinstall.js#virtual:normalized:round1
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumSuspicious Lifecycle Evidencepackage.json
MediumSuspicious Lifecycle Evidencescripts/postinstall.js
MediumSuspicious Lifecycle Evidencescripts/postinstall.js
MediumAi Review Evidencescripts/postinstall.js
MediumAi Review Evidencescripts/postinstall.js
LowScripts Present
LowFilesystem
Affected versions and remediation
This report applies to @byteplus/ark-cli@1.0.27.
See all versions of @byteplus/ark-cli for other recorded verdicts.
- Review the evidence and your use of @byteplus/ark-cli@1.0.27 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.