Un nuovo annuncio pubblicato sulla piattaforma underground XSS.is rivela la presunta vendita di un accesso compromesso ai server di una web agency italiana ad alto fatturato. A offrire l’accesso è l’utente hackutron, attivo dal settembre 2023 e già noto nei circuiti dell’underground cybercrime.

Secondo quanto dichiarato dall’attore, l’accesso alla vittima avverrebbe tramite una WebShell attiva su un sistema Windows, protetto unicamente da Windows Defender. Il prezzo richiesto è di 300 dollari, una cifra relativamente bassa rispetto al valore del target dichiarato.

Nel dettaglio, l’annuncio riporta:

• Paese: Italia
• Fatturato dichiarato: oltre 15 milioni di dollari
• Tipo di accesso: WebShell
• Antivirus presente: Windows Defender
• Contenuto compromesso: oltre 20 installazioni WordPress e relativi database di altre aziende

L’obiettivo dichiarato sembra essere una agenzia web che gestisce più ambienti WordPress per clienti terzi. In uno dei messaggi si legge:

“Web Agency che ospita oltre 20 WordPress e DB di altre aziende (ricavi elevati)”

Questo rende particolarmente interessante l’accesso per attori malevoli specializzati in data theft, phishing-as-a-service, SEO poisoning o black hat defacement. Con accesso WebShell a un ambiente shared hosting, le possibilità di escalation e movimento laterale sono elevate.

Il fatto che si tratti di una web agency multi-tenant suggerisce che i dati potenzialmente compromessi non siano limitati alla sola vittima primaria, ma includano clienti, e-commerce, CMS e CRM installati nei vari domini ospitati. Questo moltiplica esponenzialmente l’impatto potenziale.

Ma la morale in tutto questo?

Che comprendere prima che un Initial Access Broker stia osservando o analizzando una rete aziendale è oggi una delle informazioni più preziose per la difesa preventiva. Questi attori vendono porte d’accesso già aperte, e sapere in anticipo se si è finiti nel loro radar consente di rafforzare i punti deboli, segmentare la rete, aggiornare le policy di accesso e attuare contromisure tempestive. Aspettare che l’accesso venga venduto – e poi magari usato da un gruppo ransomware – significa intervenire quando il danno è già in atto.

Qui entra in gioco la Cyber Threat Intelligence (CTI), che non si limita a osservare il passato, ma analizza pattern, comportamenti, reputazione e movimenti degli attori nelle zone grigie del web. L’intelligence delle minacce consente alle aziende di monitorare marketplace, forum underground, canali Telegram e dark web per rilevare vendite sospette, fughe di dati o credenziali compromesse. In un’epoca in cui le PMI vengono bersagliate con la stessa frequenza delle grandi aziende, la CTI non è un lusso per pochi, ma una necessità per tutti.

L'articolo In vendita sul dark web l’accesso a una web agency italiana: compromessi oltre 20 siti WordPress proviene da il blog della sicurezza informatica.

[Hunter Irving] is a talented hacker with a wicked sense of humor, and he has written in to let us know about his latest project which is to make a GameCube keyboard controller work with Animal Crossing.

This project began simply enough but got very complicated in short order. Initially the goal was to get the GameCube keyboard controller integrated with the game Animal Crossing. The GameCube keyboard controller is a genuine part manufactured and sold by Nintendo but the game Animal Crossing isn’t compatible with this controller. Rather, Animal Crossing has an on-screen keyboard which players can use with a standard controller. [Hunter] found this frustrating to use so he created an adapter which would intercept the keyboard controller protocol and replace it with equivalent “keypresses” from an emulated standard controller.

In this project [Hunter] intercepts the controller protocol and the keyboard protocol with a Raspberry Pi Pico and then forwards them along to an attached GameCube by emulating a standard controller from the Pico. Having got that to work [Hunter] then went on to add a bunch of extra features.

First he designed and 3D-printed a new set of keycaps to match the symbols available in the in-game character set and added support for those. Then he made a keyboard mode for entering musical tunes in the game. Then he integrated a database of cheat codes to unlock most special items available in the game. Then he made it possible to import images (in low-resolution, 32×32 pixels) into the game. Then he made it possible to play (low-resolution) videos in the game. And finally he implemented a game of Snake, in-game! Very cool.

If you already own a GameCube and keyboard controller (or if you wanted to get them) this project would be good fun and doesn’t demand too much extra hardware. Just a Raspberry Pi Pico, two GameCube controller cables, two resistors, and a Schottky diode. And if you’re interested in Animal Crossing you might enjoy getting it to boot Linux!

Thanks very much to [Hunter] for writing in to let us know about this project. Have your own project? Let us know on the tipsline!

youtube.com/embed/Yw8Alf_lolA?…

hackaday.com/2025/06/26/making…

[Ralph] is excited about impedance matching, and why not? It is important to match the source and load impedance to get the most power out of a circuit. He’s got a whole series of videos about it. The latest? Matching using a PI network and the venerable Smith Chart.

We like that he makes each video self-contained. It does mean if you watch them all, you get some review, but that’s not a bad thing, really. He also does a great job of outlining simple concepts, such as what a complex conjugate is, that you might have forgotten.

Smith charts almost seem magical, but they are really sort of an analog computer. The color of the line and even the direction of an arrow make a difference, and [Ralph] explains it all very simply.

The example circuit is simple with a 50 MHz signal and a mismatched source and load. Using the steps and watching the examples will make it straightforward, even if you’ve never used a Smith Chart before.

The red lines plot impedance, and the blue lines show conductance and succeptance. Once everything is plotted, you have to find a path between two points on the chart. That Smith was a clever guy.

We looked at part 1 of this series earlier this year, so there are five more to watch since then. If your test gear leaves off the sign of your imaginary component, the Smith Chart can work around that for you.

youtube.com/embed/-dzBv6FqCDk?…

hackaday.com/2025/06/26/pi-net…

[Ruud], the creator of [Capturing Dust], started his latest video with what most of us would consider a solved problem: the dust collection system for his shop already had a three-stage centrifugal dust separator with more than 99.7% efficiency. This wasn’t quite as efficient as it could be, though, so [Ruud]’s latest upgrade shrinks the size of the third stage while increasing efficiency to within a rounding error of 99.9%.

The old separation system had two stages to remove large and medium particles, and a third stage to remove fine particles. The last stage was made out of 100 mm acrylic tubing and 3D-printed parts, but [Ruud] planned to try replacing it with two parallel centrifugal separators made out of 70 mm tubing. Before he could do that, however, he redesigned the filter module to make it easier to weigh, allowing him to determine how much sawdust made it through the extractors. He also attached a U-tube manometer (a somewhat confusing name to hear on YouTube) to measure pressure loss across the extractor.

The new third stage used impellers to induce rotational airflow, then directed it against the circular walls around an air outlet. The first design used a low-profile collection bin, but this wasn’t keeping the dust out of the air stream well enough, so [Ruud] switched to using plastic jars. Initially, this didn’t perform as well as the old system, but a few airflow adjustments brought the efficiency up to 99.879%. In [Ruud]’s case, this meant that of 1.3 kilograms of fine sawdust, only 1.5 grams of dust made it through the separator to the filter, which is certainly impressive in our opinion. The design for this upgraded separator is available on GitHub.

[Ruud] based his design off of another 3D-printed dust separator, but adapted it to European fittings. Of course, the dust extractor is only one part of the problem; you’ll still need a dust routing system.

youtube.com/embed/b8vZ6c8PIvw?…

Thanks to [Keith Olson] for the tip!

hackaday.com/2025/06/26/optimi…

Sempre per capire un po' meglio il posto in cui mi trovo...

Vedo spesso la riga "Filtered language" con vicino Il nome di una lingua e "Reveal/hide".

Se ho capito bene dovrebbe essere il sistema che mi dice "questo contenuto te l'ho nascosto perché è in una lingua che non capiresti però se proprio vuoi, clicca qui e te lo faccio vedere".

Beh... non so se succede anche a voi ma 9 volte su 10 è normalissimo italiano.

Possibile che l'algoritmo che dovrebbe riconoscere le lingue sbagli così tanto?

For as versatile and inexpensive as switch-mode power supplies are at all kinds of different tasks, they’re not always the ideal choice for every DC-DC circuit. Although they can do almost any job in this arena, they tend to have high parts counts, higher complexity, and higher cost than some alternatives. [Jasper] set out to test some alternative linear chargers called low dropout regulators (LDOs) for small-scale charging of lithium ion capacitors against those more traditional switch-mode options.

The application here is specifically very small solar cells in outdoor applications, which are charging lithium ion capacitors instead of batteries. These capacitors have a number of benefits over batteries including a higher number of discharge-recharge cycles and a greater tolerance of temperature extremes, so they can be better off in outdoor installations like these. [Jasper]’s findings with using these generally hold that it’s a better value to install a slightly larger solar cell and use the LDO regulator rather than using a smaller cell and a more expensive switch-mode regulator. The key, though, is to size the LDO so that the voltage of the input is very close to the voltage of the output, which will minimize losses.

With unlimited time or money, good design can become less of an issue. In this case, however, saving a few percentage points in efficiency may not be worth the added cost and complexity of a slightly more efficient circuit, especially if the application will be scaled up for mass production. If switched mode really is required for some specific application, though, be sure to design one that’s not terribly noisy.

hackaday.com/2025/06/26/linear…

Dal 2020 sono un utente #Fairphone, prima con il FP3+ e adesso con il FP5.

Sono un "Fairphone Angel" (è un nome che fa un po' ridere, lo so 😁 ) ovvero una di quelle persone che mettono la loro esperienza a disposizione di chi possiede un Fairphone o è interessato a saperne qualcosa di più (*). Maggiori informazioni le potete trovare qui.

Ho visto che nel Fediverso c'è un certo interesse su questi argomenti e così ho pensato di mettere un post "ad hoc" nel caso qualcuno volesse informazioni sul telefono.

Il sito ufficiale Fairphone è qui.

Bene, a voi la linea...

(*) Non abbiamo nessun rapporto organico con l'azienda né riceviamo compensi sotto nessuna forma, semplicemente crediamo in questo progetto, ci fa piacere contribuire in qualche modo e lo facciamo così.

Carino... dopo guardo.

ilpost.it/2025/06/26/piattafor…

Ora c’è un sito per controllare come vanno le liste d’attesa in Italia

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