uconstPyPI
Advisory published Updated
uconst is a confirmed malicious PyPI package (MAL-2024-10179) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.0rc1, 1.0.1…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in uconst (PyPI)
What this malware does
Package "uconst" is the package containing malicious code with multiple stage, exfiltrating basic info as well as browser data. It's put into others as dependency.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2024-08-uconst-old
Reasons (based on the campaign):
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infostealer
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Downloads and executes a remote executable.
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The malicious code is intentionally included in a dependency of the package
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The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for uconst (4 malicious versions).
If you installed it — respond
uconst 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 uconst 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 uconst-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.