cobo-custdyPyPI
Malicious code in cobo-custdy (PyPI) Remove it immediately and rotate any exposed credentials.
What this malware does
It appears to be a forgotten pentest checking typosquatting against cobo-custody package, but may also have malicious purposes. During installation, if a machine is Mac, an obfuscated code attempts to download and execute a shell script. Currently, the server does not respond.
Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.
Campaign: 2024-08-old-cobo-sectest
Reasons (based on the campaign):
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Downloads and executes a remote executable.
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clones-real-package
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crypto-related
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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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typosquatting
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
TyposquatFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for cobo-custdy (version 0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging cobo-custdy across your stack and pipelines.
If you installed it — respond
cobo-custdy is a typosquat — you almost certainly intended a legitimately-named package. Remove cobo-custdy, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If cobo-custdy was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks cobo-custdy before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Kamil Mańkowski (kam193)
Detect & block this
O3 blocks cobo-custdy-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.