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Changes in the Beacon Object File Landscape

ID: 940a9792-3e50-5623-bd82-67502fe9d0ef

STIX ID: report--940a9792-3e50-5623-bd82-67502fe9d0ef

Feed Name: TrustedSec blog

Date Published: 2025-03-19

Date Updated: 2026-05-01

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This article reviews the evolution, benefits, and interoperability challenges of Beacon Object Files (BOFs) over the two years since their introduction, highlighting how BOFs enable lightweight, implant-hosted native code execution, differences between BOF runners (e.g., Cobalt Strike vs COFFLoader/ELFLoader), argument-handling variations, and the growing ecosystem of BOF repositories and tooling.

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