Defensive Advice and Uncertainty

Hunting for SharePoint In-Memory ToolShell Payloads
A walk-through showing how to analyze ToolShell payloads, starting with acquiring packets all the way to decoding embedded PowerShell commands.
https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Hunting%20for%20SharePoint%20In-Memory%20ToolShell%20Payloads/32524
Android Security Bulletin December 2025
Google fixed numerous vulnerabilities with its December Android update. Two of these vulnerabilities are already being exploited.
https://source.android.com/docs/security/bulletin/2025-12-01
4.3 Million Browsers Infected: Inside ShadyPanda's 7-Year Malware Campaign
A group or individual released several browser extensions that worked fine for years until an update injected malicious code into the extension
https://www.koi.ai/blog/4-million-browsers-infected-inside-shadypanda-7-year-malware-campaign