crustyhttpPyPI
Advisory published Updated
crustyhttp is a confirmed malicious PyPI package (MAL-2024-9264) that steals credentials and exfiltrates sensitive data (malicious version 1.3.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in crustyhttp (PyPI)
What this malware does
Base64-encoded commands are executed from init.py, which exfiltrate Telegram session data.
In the invokehttp, the init.py contains obfuscated code attempting to download and run one of two executables. They are identified as malicious by VT and the tracks of Telegram URLs suggests attempting data exfiltration. The package itself looks like a copy of requests. In flophttp, using exactly the same obfuscation method, the infostealer is directly embeded into package code and exfiltrates data to a telegram channel.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2024-08-invokehttp
Reasons (based on the campaign):
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infostealer
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Downloads and executes a remote executable.
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obfuscation
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clones-real-package
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for crustyhttp (version 1.3.5).
If you installed it — respond
crustyhttp 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 crustyhttp 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)
- Stacklok: trustypkg.dev · finder
Detect & block this
O3 blocks crustyhttp-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.