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Reverse Engineering the Auto-Color Linux Backdoor

By Zyad Waleed Elzyat

Excerpt

10 min read

1 day ago

Static and dynamic analysis of Auto-Color’s execution flow, C2 communication, and LD_PRELOAD rootkit. Auto-Color in a Nutshell

Auto-Color is an emerging Linux backdoor first documented by Palo Alto Networks Unit 42 in February 2025. The earliest known samples were collected between November and December 2024, with universities and government offices in North America and Asia being the main observed targets. The family was named after the filename used by the payload after installation. Its initial delivery method is still unknown, but…

The opening of the report, shown for reference. The full report, with its figures and indicators, is published by Medium on medium.com.

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