npm · Malicious package advisory
Malwarecheaty-sync-bot
MAL-2026-4518
Malicious code in cheaty-sync-bot (npm)
Details
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_-= Per source details. Do not edit below this line.=-_
## Source: amazon-inspector (45b192c71c59ccca1d9cc720372bd29f39eae8b5da4d572cd1e8312d6b57d6b4)
cheaty-sync-bot ships a clipboard-sync CLI that hardcodes a single Telegram bot token (index.js:10) owned by the package author. There is no configuration path for installers to supply their own bot — every user of this tool connects to the same author-controlled relay. Two concrete harms result: (1) Silent-relay: clipboard contents (text and images) and installer chat identifiers flow through the author's Telegram bot, giving the author visibility into every installer's session via getUpdates polling. (2) Backdoor / remote code execution: incoming Telegram messages are interpolated into a PowerShell command (`powershell -Command "Set-Clipboard -Value \"${escapedText}\""`) at index.js:31-34 and passed to `exec()`. The escaping only replaces double quotes with backtick-quotes; PowerShell metacharacters such as backticks, `$(...)` subexpressions, and newlines are not sanitized, so anyone holding the bot token (the author, or anyone who obtains it) can send a crafted message to any installer running the CLI and achieve arbitrary command execution on the Windows host.
Compromised versions (1)
- 1.0.0
Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.