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Ccircuitrockscircuitrocks.hashnode.dev4d ago · 3 min read

ESPHome Firmware Cuts the Litter-Robot 4 Free From the Cloud

What you'd need before you open the lid A spare Litter-Robot 4 mainboard, an ESP-Prog-2 debug adapter, a 6-pin header, a fine-tip soldering iron, and a scalpel to scrape conformal coating off an unpop

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MFMohammad Fahimmohyfahim.hashnode.dev4d ago · 3 min read

Bringing UNISOC LTE Dongles to Linux: Building a Native USB Serial Driver for the D-Link DWR-910M

Introduction Many low-cost LTE USB dongles use chipset vendors such as UNISOC (Spreadtrum), but Linux support is often incomplete. The device may expose USB interfaces, RNDIS networking may work, yet

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YPYogeshwar Peelaexploitnotes.hashnode.dev5d ago · 6 min read

BrunnerCTF 2026 : Magic or Not Writeup

Summary The challenge provides four files (Brunner1.jpg, Brunner2.gif, Brunner3.png, Brunner4.bmp) that all report as generic data under file - none of them start with the magic bytes their extension

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YPYogeshwar Peelaexploitnotes.hashnode.dev5d ago · 13 min read

BrunnerCTF 2026 : Half Baked Writeup

Summary half_baked.py defines a BrunsvigerCake model with six nn.Linear layers, each with real pretrained weights and biases already assigned, but forward() just returns the input untouched - none of

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YPYogeshwar Peelaexploitnotes.hashnode.dev5d ago · 7 min read

BrunnerCTF 2026 : Activating Neurons Writeup

Summary The challenge ships a single file, activating_neurons.py, defining a small nn.Module called BrunsvigerNet. The model has two linear layers, but forward() only runs the input through the first

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YPYogeshwar Peelaexploitnotes.hashnode.dev5d ago · 7 min read

TryHackMe : Compiled Writeup

Challenge Summary A stripped-looking ELF binary (Compiled-1688545393558.Compiled) prompts for a password and prints either Correct! or Try again!. The goal is to reverse-engineer the binary to find th

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CIChris Isaiasdarkscene.hashnode.devAug 15 · 25 min read

Signed, Staged, and Weaponised: Inside an ACRStealer Campaign

By C. Isaias, and A. Soloviev Introduction Earlier this month, claims circulated on X describing a BYOVD EDR killer said to enumerate and terminate the products of more than 140 security vendors, deli

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Ccircuitrockscircuitrocks.hashnode.devAug 16 · 3 min read