kotorakaPyPI
Advisory published Updated
kotoraka is a confirmed malicious PyPI package (MAL-2026-13683) that steals credentials and exfiltrates sensitive data (malicious version 0.1.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in kotoraka (PyPI)
What this malware does
On import, kotoraka decodes base64-obfuscated filesystem paths pointing at the user's Monero wallet directory (Windows: C:\Users<user>\Documents\Monero; Linux: /home/<user>/Monero), terminates any running feather or monero processes to release file locks, archives the wallet directory into a zip, and uploads it to the Telegram Bot API (api.telegram.org sendDocument) using a hardcoded bot token and chat_id (-5357046713). The Telegram bot token and target paths are stored as base64 literals decoded at runtime. The declared purpose of the package (an HTTP speed-up library) is unrelated to the actual behavior. The exfiltration fires as a top-level side effect of import kotoraka, with no user interaction.
During import, the package exfiltrates cryptocurrency wallet files.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-08-kotanku
Reasons (based on the campaign):
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exfiltration-crypto
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uses-telegram-bot
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for kotoraka (version 0.1.0).
If you installed it — respond
kotoraka is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If kotoraka was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
- Kamil Mańkowski (kam193) · reporter
Detect & block this
O3 blocks kotoraka-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.