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PyLoose campaign (Campaign)

ID: 56274904-2787-5a7d-bbb5-d49a1c341107

STIX ID: report--56274904-2787-5a7d-bbb5-d49a1c341107

Feed Name: Wiz Cloud Threat Landscape

Threat Score
60/100

Date Published: 2023-07-11

Date Updated: 2026-05-01

Author: [email protected] (Wiz Threat Research)

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In mid-2023 an unknown financially-motivated actor targeted publicly exposed Jupyter Notebook instances, deploying a fileless Python tool dubbed “PyLoose” to load an XMRig cryptocurrency miner directly into memory and hijack notebooks for cryptomining operations.

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