tonetextPyPI
Advisory published Updated
tonetext is a confirmed malicious PyPI package (MAL-2025-191906) that steals credentials and exfiltrates sensitive data (malicious versions 0.1.1, 0.2.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in tonetext (PyPI)
What this malware does
When imported, the code embedded into the exception class downloads a remote file, and runs it by importing, and attempts to cover tracks by overwriting itself, removing caches and other related files.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-03-tonetext
Reasons (based on the campaign):
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Downloads and executes a remote malicious script.
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obfuscation
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for tonetext (2 malicious versions).
If you installed it — respond
tonetext 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 tonetext 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)
Detect & block this
O3 blocks tonetext-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.