registry  /  nolimit-agent  /  1.0.335

nolimit-agent@1.0.335

Advanced email sender

AI Security Review

scanned 2h ago · by lpm-firewall-ai

The package is a user-invoked bulk email/red-team tool with obfuscated code, webmail automation, OAuth token storage, and contact extraction. No confirmed npm install-time malware chain was found.

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
npm install for lifecycle scripts; user runs nolimit commands for email/OAuth/webmail features
Impact
dangerous dual-use phishing/spam capability and local credential/token handling risk
Mechanism
obfuscated bulk email, webmail injection, OAuth/contact extraction tooling
Rationale
Source inspection confirms dangerous email automation and credential-handling capabilities, but the install hooks are limited to EULA/shim setup and no exfiltration or hidden install-time compromise was found. Treat as suspicious/dangerous dual-use rather than npm malware publish-block.
Evidence
package.jsonscripts/preinstall.jsscripts/postinstall.js.ad/x0.js.ad/web-command.js.ad/x4.jssrc/web-panel/ws.js~/.nolimit/eula.json<npm-global-prefix>/nolimit.cmdsmtps.txtconfig.jsonextracted/dkim_keys/

Decision evidence

public snapshot
AI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
  • package.json defines preinstall/postinstall and obfuscated main/bin .ad/x0.js.
  • .ad/x0.js implements bulk email sending, OAuth auth, contact extraction from SMTP/IMAP/Graph, and DKIM generation.
  • src/web-panel/ws.js injects a panel into Gmail/Outlook/Yahoo pages and clicks compose/send for target lists.
  • .ad/web-command.js builds a Chrome extension and injects src/web-panel/ws.js into open webmail sessions.
  • .ad/x0.js and .ad/*.js are heavily obfuscated despite sensitive email/OAuth behavior.
Evidence against
  • scripts/preinstall.js only prompts for EULA and writes ~/.nolimit/eula.json on acceptance.
  • scripts/postinstall.js only creates a Windows nolimit.cmd shim for the package entrypoint.
  • No install-time credential harvesting, exfiltration, or foreign AI-agent control-surface mutation found.
  • Network-capable behavior appears tied to user-invoked email/OAuth/license/tool commands, not import/install time.
Behavioral surface
Source
ChildProcessFilesystemShell
Supply chain
HighEntropyStrings
ManifestNo manifest risk signals triggered.
scanned 3 file(s), 22.5 KB of source

Source & flagged code

6 flagged · loading source
package.jsonView file
•scripts.postinstall = node scripts/postinstall.js
High
Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg
•scripts.preinstall = node scripts/preinstall.js
Medium
Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

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 unpkg
src/web-panel/ws.jsView file
269contains invisible/control Unicode U+202A (left-to-right embedding) const sendBtn = document.querySelector('[data-tooltip="Send <U+202A>(Ctrl-Enter)<U+202C>"]') ||
Critical
Trojan Source Unicode

Source contains bidi control or invisible Unicode characters associated with Trojan Source attacks.

src/web-panel/ws.jsView on unpkg · L269
scripts/postinstall.jsView file
•matchType = normalized_sha256 matchedPackage = nolimit-agent@1.0.327 matchedPath = scripts/postinstall.js matchedIdentity = npm:bm9saW1pdC1hZ2VudA:1.0.327 similarity = 1.000 summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/postinstall.jsView on unpkg
•matchType = malicious_source_fingerprint_signature signature = 97ad344d2ec43431 signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = nolimit-agent@1.0.327 matchedPath = scripts/postinstall.js matchedIdentity = npm:bm9saW1pdC1hZ2VudA:1.0.327 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.

scripts/postinstall.jsView on unpkg

Findings

1 Critical3 High3 Medium4 Low
CriticalTrojan Source Unicodesrc/web-panel/ws.js
HighInstall Time Lifecycle Scriptspackage.json
HighKnown Malware Source Similarityscripts/postinstall.js
HighKnown Malware Source Fingerprint Signaturescripts/postinstall.js
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumStructural Risk Force Deep Review
LowNon Install Lifecycle Scripts
LowScripts Present
LowFilesystem
LowHigh Entropy Strings