axelarjs-sdk@1.0.1
Testing purposes
AI Security Review
scanned 4d ago · by lpm-firewall-aiThe automatically invoked preinstall hook sends the hostname and OS username to a fixed external Discord webhook. This is install-time data exfiltration unrelated to the package's stated functionality.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review
Trigger
Runs automatically during package installation through the preinstall lifecycle script.
Impact
Exposes the installing machine's hostname and username to the webhook operator without installer consent.
Mechanism
Reads the hostname and OS username, places them in a message, and POSTs it to the webhook.
Attack narrative
During installation, the preinstall hook reads the machine hostname and OS username, then sends them in a message to a hard-coded Discord webhook. This is an undisclosed install-time transfer of identifying host data.
AI rationale
The automatically invoked preinstall hook sends the hostname and OS username to a fixed external Discord webhook. This is install-time data exfiltration unrelated to the package's stated functionality.
Evidence
package.jsonpreinstall.js.preinstall-marker.json
Network endpoints1
canary.discord.com/api/webhooks/1566232728179843243/pM5rDIrCRrEpQRbA7ibaiQk1XOQlIftmBacA5s8jD8NvXn5W-rS832DOWHQS-G-j3N6U
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- The package manifest runs node preinstall.js during installation.
- The install hook contains a hard-coded Discord webhook URL.
- The hook builds a message containing the machine hostname and OS username.
- The hook sends that message in an HTTP POST to the webhook.
Evidence against
- index.js only exports a function that returns a fixed availability string.
- The hook writes a local marker containing package, lifecycle event, timestamp, and webhook status.
Behavioral surface
EnvironmentVarsFilesystem
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
9 flaggedpackage.jsonView file
•scripts.preinstall = node preinstall.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.preinstall = node preinstall.js
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgpreinstall.jsView file
6L7: const WEBHOOK_URL = 'https://canary.discord.[redacted]-rS832DOWHQS-G-j3N6U';
L8:
...
L18: writeMarker = marker => fs.writeFileSync(
L19: path.join(__dirname, '.preinstall-marker.json'),
L20: JSON.stringify(marker, null, 2) + '\n'
...
L22: } = {}) {
L23: const message = `Run on ${os.hostname()} as ${os.userInfo().username} at ${timestamp()}`;
L24:
...
L26: package: 'cutekitten-test',
L27: event: process.env.npm[redacted] || 'manual',
L28: timestamp: new Date().toISOString(),
Critical
Findings
3 Critical5 High3 Medium5 Low
CriticalHardcoded Runtime Data Exfiltrationpreinstall.js
CriticalCredential Exfiltrationpreinstall.js
CriticalTrigger Reachable Dangerous Capabilitypreinstall.js
HighInstall Time Lifecycle Scriptspackage.json
HighFixed Authenticated Webhook Data Exfiltrationpreinstall.js
HighTrigger Reachable Credential Exfiltrationpreinstall.js
HighKnown Malware Source Similaritypreinstall.js
HighKnown Malware Source Fingerprint Signaturepreinstall.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
Affected versions and remediation
This report applies to axelarjs-sdk@1.0.1.
See all versions of axelarjs-sdk for other recorded verdicts.
- Avoid installing axelarjs-sdk@1.0.1. 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: .
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