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Cisco NVM - Installation of Typosquatted Python Package

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Summary
This detection rule identifies potential typosquatting activities in Python package installations that can compromise system security. Typosquatting occurs when adversaries distribute malicious packages with names similar to legitimate packages to mislead users. The Cisco NVM analytics utilize flow telemetry to monitor traffic related to Python package managers, specifically tracking install and add commands for pip and poetry while looking for connections to known package repositories (like pypi.org). The logic captures process arguments, utilizes regex to derive package names, and cross-references them against a lookup table containing known typosquatted packages, thereby flagging suspicions around potential security risks. This proactive approach helps organizations mitigate the chances of inadvertently executing harmful code that compromise integrity within their environments.
Categories
  • Endpoint
Data Sources
  • Network Traffic
ATT&CK Techniques
  • T1059
Created: 2025-07-03