supply chain event / NVI-00011072 / Revision 1
Malicious code in dotenv-precheck (npm)
GitHub lists this malware advisory for dotenv-precheck, dotenv-precheck, dotenv-precheck. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
dotenv-precheck
source listed= 1.1.1
## Source: amazon-inspector (446a8483dbc9e696506f44c6777b7c086b1b919b2585b5e5c99ca5f6e2e19a8e) dotenv-precheck@1.0.0 is a credential-stealing package disguised as a dotenv preflight utility. package.json wires index.js as a postinstall script, so it runs automatically on npm install. index.js is heavily obfuscated (obfuscator.io-style hex identifiers, a rotated string array with debugger/toString self-defense, and base64-decoded literals) to hide its runtime strings, which reconstruct at runtime to an api.telegram.org bot endpoint together with a hardcoded bot token and chat ID. On execution the script recursively walks the installer's home directory, including Desktop, Documents, and Downloads, reads text files up to 2MB, and extracts values matching wallet and secret patterns: environment-style entries whose names contain KEY, SECRET, TOKEN, PASSWORD, SEED, MNEMONIC, or WALLET; 0x-prefixed 64-hex Ethereum private keys; Base58 WIF keys; 64-integer Solana key arrays; and BIP-39 mnemonic phrases validated against the BIP-39 word list and SHA-256 checksum. Collected material is uploaded to the attacker's Telegram bot via a sendDocument multipart request to api.telegram.org. No functi
dotenv-precheck
source listed= 1.0.0
## Source: amazon-inspector (446a8483dbc9e696506f44c6777b7c086b1b919b2585b5e5c99ca5f6e2e19a8e) dotenv-precheck@1.0.0 is a credential-stealing package disguised as a dotenv preflight utility. package.json wires index.js as a postinstall script, so it runs automatically on npm install. index.js is heavily obfuscated (obfuscator.io-style hex identifiers, a rotated string array with debugger/toString self-defense, and base64-decoded literals) to hide its runtime strings, which reconstruct at runtime to an api.telegram.org bot endpoint together with a hardcoded bot token and chat ID. On execution the script recursively walks the installer's home directory, including Desktop, Documents, and Downloads, reads text files up to 2MB, and extracts values matching wallet and secret patterns: environment-style entries whose names contain KEY, SECRET, TOKEN, PASSWORD, SEED, MNEMONIC, or WALLET; 0x-prefixed 64-hex Ethereum private keys; Base58 WIF keys; 64-integer Solana key arrays; and BIP-39 mnemonic phrases validated against the BIP-39 word list and SHA-256 checksum. Collected material is uploaded to the attacker's Telegram bot via a sendDocument multipart request to api.telegram.org. No functi
dotenv-precheck
source listed= 1.1.0
## Source: amazon-inspector (446a8483dbc9e696506f44c6777b7c086b1b919b2585b5e5c99ca5f6e2e19a8e) dotenv-precheck@1.0.0 is a credential-stealing package disguised as a dotenv preflight utility. package.json wires index.js as a postinstall script, so it runs automatically on npm install. index.js is heavily obfuscated (obfuscator.io-style hex identifiers, a rotated string array with debugger/toString self-defense, and base64-decoded literals) to hide its runtime strings, which reconstruct at runtime to an api.telegram.org bot endpoint together with a hardcoded bot token and chat ID. On execution the script recursively walks the installer's home directory, including Desktop, Documents, and Downloads, reads text files up to 2MB, and extracts values matching wallet and secret patterns: environment-style entries whose names contain KEY, SECRET, TOKEN, PASSWORD, SEED, MNEMONIC, or WALLET; 0x-prefixed 64-hex Ethereum private keys; Base58 WIF keys; 64-integer Solana key arrays; and BIP-39 mnemonic phrases validated against the BIP-39 word list and SHA-256 checksum. Collected material is uploaded to the attacker's Telegram bot via a sendDocument multipart request to api.telegram.org. No functi
03 / Response
What to do next
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-f9wq-94v3-cjrp ↗
GitHub Advisory Database · vendor advisory
Observed . GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.