textwrap-extPyPI
Advisory published Updated
textwrap-ext is a confirmed malicious PyPI package (MAL-2026-3408) that steals credentials and exfiltrates sensitive data (malicious version 1.2.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in textwrap-ext (PyPI)
What this malware does
During installation, obfuscated code exfiltrates cryptocurrency wallet data to a hardcoded location and places a backdoor through a new authorized SSH key. Information about the placed backdoor is sent back to the attacker, and sshd configuration is adjusted to ensure the successful remote connection.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-05-ninja-core-utils
Reasons (based on the campaign):
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The package overrides the install command in setup.py to execute malicious code during installation.
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obfuscation
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crypto-related
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exfiltration-crypto
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backdoor
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for textwrap-ext (version 1.2.5).
If you installed it — respond
textwrap-ext 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 textwrap-ext 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) · reporter
Detect & block this
O3 blocks textwrap-ext-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.