TeamPCP Telnyx PyPI Backdoor Indicators
This rule detects activity associated with the TeamPCP Telnyx PyPI backdoor, specifically targeting versions 4.87.1 and 4.87.2 of the 'telnyx' package. It identifies two main indicators: first, process command lines that show the installation of these specific malicious versions via 'pip' or 'python -m pip'; second, network connections to a known command and control (C2) IP address (83.142.209.203) or specific C2 URLs involving '.wav' files, which are known to be used for steganography in this campaign. A match indicates a high confidence of potential compromise and warrants immediate investigation to confirm the affected host and user, assess the legitimacy of the activity, and review for follow-on malicious actions.
Microsoft Sentinel (KQL)
