Things I build, break, fix, and write about

5 November 2026
Embedded payloads in trojanised PDF viewers

Modified PDF viewers are a neat little delivery trick because they look like ordinary job bait until someone opens them. I keep coming back to the same point, the file name is not the danger, the loader path is; that is where the unwanted code slips in.

5 November 2026
Ransomware group fragmentation and detection priorities

Ransomware group fragmentation means the label matters less than the behaviour, and I trust activity over reputation every time. A small crew with...

5 November 2026
Security Advisory – 05 Nov 2026

Daily security advisory summary for 05 Nov 2026

4 November 2026
Linux kernel net/sched UAF constraints on CentOS 9 desktop

Linux kernel net/sched use-after-free looks messy on paper, and on CentOS 9 Desktop it is worse, because the obvious paths are blocked and the useful...

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23 October 2025
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22 October 2025
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21 October 2025
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20 October 2025
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20 October 2025
Resolving false positives in Sophos Firewall Email

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19 October 2025
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16 October 2025
Designing a Home Assistant dashboard for tablets

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15 October 2025
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15 October 2025
Setting up a modded Valheim server with Docker Compose

Learn how to set up a modded Valheim server on your homelab using Docker Compose. This guide covers the essential steps for installation, configuration, and maintenance, ensuring a stable and...