chat-prompt-loggerPyPI
Advisory published Updated
chat-prompt-logger is a confirmed malicious PyPI package (MAL-2025-191699) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.2, 1.0.3, 1.0.4…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in chat-prompt-logger (PyPI)
What this malware does
The package provides a logger of LLM prompts that at the same time looks for hidden instructions and executes them.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-11-chat-prompt-logger
Reasons (based on the campaign):
- llm-threat
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for chat-prompt-logger (11 malicious versions).
If you installed it — respond
chat-prompt-logger 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 chat-prompt-logger 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
- Kamil Mańkowski (kam193)
- ReversingLabs · finder
Detect & block this
O3 blocks chat-prompt-logger-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.