Malicious code in ts-einkle (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (fa992a8f9afcf95d3c0e35b6abc290ff565b450663f6d43511467cd370eefce8) [email protected] ships a comprehensive installer-side stealer in its main module `peer-math.js`. On require, `syncSession()` runs a chain (`packProjectBundle`, `packWalletsAndCreds`, `packDeepScan`) that: (1) reads classic credential paths including `~/.ssh`, `~/.aws`, `~/.gnupg`, `~/.npmrc`, `~/.pypirc`, `~/.docker/config.json`, `~/.git-credentials`, and `~/.config/gh/hosts.yml`; (2) on Windows invokes PowerShell `ProtectedData::Unprotect` (DPAPI) against Chromium `Local State` `os_crypt.encrypted_key` to derive the master key and decrypt the `Login Data` SQLite to plaintext passwords; (3) copies Firefox `key4.db`/`logins.json`, Bitwarden `data.json`, KeePass `.kdbx`, and 1Password SQLite vaults; (4) packs browser wallet extension stores for MetaMask, Phantom, Solflare, OKX, Coinbase, TrustWallet, Backpack, and TronLink; (5) packs Telegram Desktop `tdata`; (6) enumerates home and drives for wallet/seed/mnemonic/key keyword matches; (7) collects browser cookies, clipboard, shell history, and scrapes source trees. Captured data is POSTed to `https://datasecure-service.vercel.app/api/v1` (overridable via `PSM_API_URL`). `package.json` declares `"postinstall": "node test.js"`, so installation is intended to auto-trigger the chain. Cover-story labels (functions renamed `from_str_1..17`, sentinel files named `data-backup-upload-*.sent`) and a themed name with keywords `polymarket`, `kelly`, `stake` impersonate benign tooling; the README itself refers to the upload endpoint as a "C2 URL". ## Source: ghsa-malware (6dc191a91bfcc0bd37051e540aa2ba32ffe82b577fba8a0e21a4e1d006a16cb6) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
AI Analysis
Technical Summary
The ts-einkle npm package version 1.0.9 includes a postinstall script that runs malicious code during installation. This code performs three main attacks: (1) it recursively searches the current working directory for sensitive files such as .env, config.toml/json, and id.json and sends them via multipart POST to a remote server; (2) it scans the entire user home directory on Unix or all Windows drive roots for document files (.txt, .json, .env, .doc, .docx, .xlsx, .pdf, .toml) and uploads them in 4MB batches along with user metadata; (3) on Linux, it fetches an attacker-controlled SSH public key and appends it to ~/.ssh/authorized_keys, then uses sudo to change ownership and enable firewall rules allowing inbound SSH connections, establishing a persistent backdoor. The package attempts to mask these actions with benign-looking log prefixes and user-agent strings.
Potential Impact
This malicious package compromises confidentiality by exfiltrating sensitive configuration and document files from the victim's system. It also compromises system integrity and availability by installing a persistent SSH backdoor on Linux systems, allowing unauthorized remote access. These actions can lead to credential theft, data leakage, and unauthorized system control.
Mitigation Recommendations
No official patch or remediation is currently available for this malicious package. Users should avoid installing ts-einkle version 1.0.9 and remove it if already installed. Conduct a thorough investigation for potential compromise, especially on Linux systems, including checking for unauthorized SSH keys and firewall rule changes. Use trusted sources for npm packages and monitor for suspicious postinstall scripts.
Malicious code in ts-einkle (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (fa992a8f9afcf95d3c0e35b6abc290ff565b450663f6d43511467cd370eefce8) [email protected] ships a comprehensive installer-side stealer in its main module `peer-math.js`. On require, `syncSession()` runs a chain (`packProjectBundle`, `packWalletsAndCreds`, `packDeepScan`) that: (1) reads classic credential paths including `~/.ssh`, `~/.aws`, `~/.gnupg`, `~/.npmrc`, `~/.pypirc`, `~/.docker/config.json`, `~/.git-credentials`, and `~/.config/gh/hosts.yml`; (2) on Windows invokes PowerShell `ProtectedData::Unprotect` (DPAPI) against Chromium `Local State` `os_crypt.encrypted_key` to derive the master key and decrypt the `Login Data` SQLite to plaintext passwords; (3) copies Firefox `key4.db`/`logins.json`, Bitwarden `data.json`, KeePass `.kdbx`, and 1Password SQLite vaults; (4) packs browser wallet extension stores for MetaMask, Phantom, Solflare, OKX, Coinbase, TrustWallet, Backpack, and TronLink; (5) packs Telegram Desktop `tdata`; (6) enumerates home and drives for wallet/seed/mnemonic/key keyword matches; (7) collects browser cookies, clipboard, shell history, and scrapes source trees. Captured data is POSTed to `https://datasecure-service.vercel.app/api/v1` (overridable via `PSM_API_URL`). `package.json` declares `"postinstall": "node test.js"`, so installation is intended to auto-trigger the chain. Cover-story labels (functions renamed `from_str_1..17`, sentinel files named `data-backup-upload-*.sent`) and a themed name with keywords `polymarket`, `kelly`, `stake` impersonate benign tooling; the README itself refers to the upload endpoint as a "C2 URL". ## Source: ghsa-malware (6dc191a91bfcc0bd37051e540aa2ba32ffe82b577fba8a0e21a4e1d006a16cb6) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ts-einkle npm package version 1.0.9 includes a postinstall script that runs malicious code during installation. This code performs three main attacks: (1) it recursively searches the current working directory for sensitive files such as .env, config.toml/json, and id.json and sends them via multipart POST to a remote server; (2) it scans the entire user home directory on Unix or all Windows drive roots for document files (.txt, .json, .env, .doc, .docx, .xlsx, .pdf, .toml) and uploads them in 4MB batches along with user metadata; (3) on Linux, it fetches an attacker-controlled SSH public key and appends it to ~/.ssh/authorized_keys, then uses sudo to change ownership and enable firewall rules allowing inbound SSH connections, establishing a persistent backdoor. The package attempts to mask these actions with benign-looking log prefixes and user-agent strings.
Potential Impact
This malicious package compromises confidentiality by exfiltrating sensitive configuration and document files from the victim's system. It also compromises system integrity and availability by installing a persistent SSH backdoor on Linux systems, allowing unauthorized remote access. These actions can lead to credential theft, data leakage, and unauthorized system control.
Mitigation Recommendations
No official patch or remediation is currently available for this malicious package. Users should avoid installing ts-einkle version 1.0.9 and remove it if already installed. Conduct a thorough investigation for potential compromise, especially on Linux systems, including checking for unauthorized SSH keys and firewall rule changes. Use trusted sources for npm packages and monitor for suspicious postinstall scripts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-6524
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a3ef7a927e9c79719ffb69d
Added to database: 06/26/2026, 22:05:29 UTC
Last enriched: 06/26/2026, 22:25:51 UTC
Last updated: 07/31/2026, 08:10:13 UTC
Views: 47
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