Cisco NVM - Installation of Typosquatted Python Package
This analytic detects suspicious python package installations where the package name resembles popular Python libraries but may be typosquatted or slightly altered. Typosquatting is a common technique used by…
Description
This analytic detects suspicious python package installations where the package name resembles popular Python libraries but may be typosquatted or slightly altered. Typosquatting is a common technique used by attackers to trick users into installing malicious packages that mimic legitimate ones. This detection leverages Cisco NVM flow telemetry and checks for pip or poetry package managers with the "install" or "add" flags, making outbound connections to package repository such as `pypi.org` with known or suspected typo package names.
Detection logic
Detection requirements
- Platform
- ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source category
- cisco_network_visibility_module_flow_data
Known benign triggers
- False positives should be very minimal to non existent, as the names of the packages in the lookup are all extracted from previously malicious packages.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| blog.checkpoint.com/securing-the-cloud/pypi-inundated-by-malicious-typosquatting-campaign/ | Only this detection cites it |
| rhisac.org/threat-intelligence/typosquatting-campaign-targets-python-developers-with-hundreds-of-malicious-libraries/ | Only this detection cites it |
| securelist.com/two-more-malicious-python-packages-in-the-pypi/107218/ | Only this detection cites it |
From the source
- At source
- Open at source
- Upstream identifier
- 5e3f6b44-42cb-4f8a-99f0-59e78a52ea1d
- Tagged by the source as
- Cisco Network Visibility Module AnalyticsEndpointendpointSplunk CloudSplunk EnterpriseSplunk Enterprise Securityendpoint
Licence
- Published under
- Apache License 2.0Read the licence
- Attribution
- Required
- Obtained under
- Apache-2.0Read the origin licence
Authorship
- Written by
- Published
- Oct 6, 2026
- Version
- 2