An early update on what we’ve learned from Project Glasswing.
Category: futurism
Making Vulnerable Drivers Exploitable Without Hardware — The BYOVD Perspective
First, we use pnputil to deploy the driver package into the Windows Driver Store.
Next, we use devcon to create a new software-emulated device node with an arbitrary hardware ID that matches one defined in the driver’s INF file. This action triggers the PnP manager to detect the newly staged driver as the best match for the device.
As a result, the driver’s AddDevice routine gets executed.
This Fan-Made UE5 Game Lets You Play As Spyro & Crash Together
Something straight out of your childhood imagination.
A Residual N-Terminal Peptide Enhances Signaling of Depalmitoylated Hedgehog to the Patched Receptor
During their biosynthesis, Sonic hedgehog (Shh) morphogens are covalently modified by cholesterol at the C-terminus and palmitate at the N-terminus. Although both lipids initially anchor Shh to the plasma membrane of producing cells, it later translocates to the extracellular compartment to direct developmental fates in cells expressing the Patched (Ptch) receptor. Possible release mechanisms for dually lipidated Hh/Shh into the extracellular compartment are currently under intense debate. In this paper, we describe the serum-dependent conversion of the dually lipidated cellular precursor into a soluble cholesteroylated variant (ShhC) during its release. Although ShhC is formed in a Dispatched- and Scube2-dependent manner, suggesting the physiological relevance of the protein, the depalmitoylation of ShhC during release is inconsistent with the previously postulated function of N-palmitate in Ptch receptor binding and signaling. Therefore, we analyzed the potency of ShhC to induce Ptch-controlled target cell transcription and differentiation in Hh-sensitive reporter cells and in the Drosophila eye. In both experimental systems, we found that ShhC was highly bioactive despite the absence of the N-palmitate. We also found that the artificial removal of N-terminal peptides longer than eight amino acids inactivated the depalmitoylated soluble proteins in vitro and in the developing Drosophila eye. These results demonstrate that N-depalmitoylated ShhC requires an N-peptide of a defined minimum length for its signaling function to Ptch.
This tiny outer Solar System world has an atmosphere. It shouldn’t
Astronomers have spotted something surprising in the far outer Solar System—a faint, short-lived atmosphere clinging to a tiny icy world that shouldn’t be able to hold one at all. The object, called 2002XV93, is far smaller than Pluto, yet observations during a rare stellar alignment revealed its presence through a subtle dimming of starlight. Even more puzzling, calculations suggest this atmosphere should vanish within about 1,000 years unless it’s constantly being replenished.
A group of professional and amateur astronomers in Japan has uncovered evidence that a small, distant object in the outer Solar System is surrounded by a thin atmosphere. The finding is surprising because the object is far too small to hold onto gas for long, raising new questions about how and when this atmosphere formed. Future observations will be needed to better understand its composition and origin.
Far beyond Neptune’s orbit, thousands of icy bodies known as trans-Neptunian objects (TNOs) circle the Sun. Pluto is the most well-known example and is one of the few with a confirmed thin atmosphere. For most TNOs, however, the combination of extremely low temperatures and weak gravity makes it unlikely for them to retain any gases. As a result, scientists generally expect these distant objects to be airless.
