asciitoartPyPI
Advisory published Updated
asciitoart is a confirmed malicious PyPI package (MAL-2026-2624) that steals credentials and exfiltrates sensitive data (malicious versions 0.1.1, 0.1.2, 0.1.3…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in asciitoart (PyPI)
What this malware does
Through an obscure way, one of the package files got overwritten by a remote obfuscated code, which appears to be an infostealer. After executing the malicious code, the package covers the tracks by overwriting all relevant code files.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2024-11-asn1tool
Reasons (based on the campaign):
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obfuscation
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dependency-confusion
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typosquatting
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clones-real-package
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infostealer
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for asciitoart (4 malicious versions).
If you installed it — respond
asciitoart 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 asciitoart 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 asciitoart-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.