Multiple Malicious Python Packages Targeting Bittensor Crypto Developers

Malware

SafeDep Team

• Aug 12, 2025 • 2 min read

TL;DR

Multiple malicious Python packages targeting crypto developers and their applications were discovered on PyPI. The packages were used to steal funds by executing a stealthy staking operation. In this specific case, the attackers hooked a legitimate staking function to redirect the funds to their own wallet. The attack leveraged typosquatting to target the popular bittensor package.

Following malicious packages were disclosed by GitLab Vulnerability Research Team:

How SafeDep can protect developers?

SafeDep open source tools especially vet and pmg can help protect developers from malicious packages and other open source software supply chain attacks.

Our automated systems flagged the packages as suspicious due to multiple signals, including identifying the malicious code and intention in typosquatting packages. See example

Hardcoded destination wallet address 5FjgkuPzAQHax3hXsSkNtue8E7moEYjTgrDDGxBvCzxc1nqR
Forced transfer_all=True indicating operations without user consent

Malicious Package	SafeDep Analysis	Flagged At
`[email protected]`	Link	8/6/2025, 2:53:48 AM
`[email protected]`	Link	8/6/2025, 2:59:52 AM
`[email protected]`	Link	8/6/2025, 3:03:45 AM
`[email protected]`	Link	8/6/2025, 3:16:03 AM
`[email protected]`	Link	8/6/2025, 3:17:10 AM

SafeDep vet alerted users in CI/CD pipelines when trying to add any of the compromised package through a PR.

vet Bittensor Example

SafeDep pmg will alert developers when trying to install any of the compromised package.

pmg Bittensor Example

How to protect your project?

At SafeDep, we believe code is the source of truth. We perform code analysis to detect vulnerabilities and malicious code in open source packages. If that is not feasible, general security best practices can be used to protect against common open source software supply chain attacks.

Always vet open source packages for vulnerabilities and malicious code before use
Ensure branch protection rules require code review before merging
Establish trust on packages through its popularity, community or code review
Avoid using most recently released package versions
Prefer using open source packages only from trusted sources

SafeDep vet seamlessly integrates with your CI/CD pipeline and alerts you when trying to add any of the compromised package through a PR. SafeDep pmg will alert developers when trying to install any of the compromised package.

References

GitLab Uncovers Bittensor Theft Campaign via PyPI

pypi
oss
malware
crypto

Author

SafeDep Team

safedep.io

Share

Security

npm SANDWORM_MODE Attack: Step-by-Step Malware Analysis

Step-by-step technical analysis of the SANDWORM_MODE npm supply chain attack. We dissect yarsg and format-defaults malicious packages, decode multi-layer obfuscation, and trace the payload delivery...

Why We Built a Hosted MCP Server to Stop Malicious Packages for AI Agents

Exposing an MCP server is trivial. Making it useful for AI agents is not. Here's what we learned dogfooding our own tool, and why we built a hosted MCP server backed by real-time open source threat...

Malware

AI Agent Cline v2.3.0 Compromised: From Prompt Injection to Unauthorized npm Publish

A compromised npm token was used to publish a tampered version of Cline CLI. A prompt injection vulnerability in Cline's AI-powered GitHub Actions workflow may have enabled the credential theft.

Engineering

End-to-End test with Nextjs, Playwright and MSW

A practical Next.js 16 App Router E2E setup with Playwright and MSW that keeps server-side fetch deterministic by focusing mocking where it matters, not on server actions.

View All Blogs