Article
Vedcom z Izraelu sa podarilo vytvoriť nový malvér nazvaný GSMem, ktorý dokáže využívať elektromagnetické vyžarovanie počítača na bezdrôtový prenos dát z počítača pomocou mobilných frekvencií aj keď je počítač úplne odpojený od počítačovej siete. Ako anténa sa pritom správa pamäťová zbernica počítača. Vedci budú svoju štúdiu publikovať na konferencii USENIX Security Symposium v auguste.
Hoci po nainštalovaní malvéru na počítač je možné kradnúť dáta bez pripojenia k Internetu, dostať malvér na počítač je potrebné s pomocou Internetu. Útočník môže využiť sociálne inžinierstvo či škodlivú aplikáciu, ktorú si užívateľ stiahne a spolu s ňou aj GSMem malvér. Inou cestou je fyzicky prístup k počítaču a nahratie malvéru cez USB port. Následne je možné s telefónom zachytávať elektromagnetické žiarenie z počítača a kradnúť citlivé údaje.
Celý útok však nie je tak jednoduchý ako by sa mohlo zdať. Okrem malvéru bol použitý aj obyčajný mobilný telefón Motorola C123 bez SIM karty. Mal však upravený firmvér tak, aby bol schopný prijímať elektromagnetické žiarenie vyžarované počítačom. Ak je počítač napadnutý a telefón upravený, môže byť prenos zachytený na diaľku 1 až 5 metrov. So špeciálnym hardvérom by sa však vzdialenosť zvýšila až na 30 metrov.
Hoci ide o zaujímavý spôsob útoku so starým mobilom, mnoho spoločnosti si dobre chráni svoje citlivé dáta. Mnohé počítače sú nielen izolované od akýchkoľvek sietí takže je k nim vzdialený prístup nemožný, ale majú aj zablokované USB porty takže by útočník nemohol malvér nahrať do počítača. Ak by však predsa len podarilo nejakým spôsobom malvér prepašovať na počítač útočník by pomerne jednoducho mohol odcudziť dáta. Mnohé spoločnosti totiž v utajených oblastiach zakazujú moderné smartfóny s Wi-Fi, Bluetooth či fotoaparátmi, nie však staré, obyčajné telefóny. Ako výsledok preto výskumníci odporúčajú viacerým spoločnostiam vykonať opatrenia aby skúsili odhaliť prítomnosť GSMem malvéru.
Zdroj: scmagazine
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About the game:
USA as a world power? In E-Sim it is possible!
In E-Sim we have a huge, living world, which is a mirror copy of the Earth. Well, maybe not completely mirrored, because the balance of power in this virtual world looks a bit different than in real life. In E-Sim, USA does not have to be a world superpower, It can be efficiently managed as a much smaller country that has entrepreneurial citizens that support it's foundation. Everything depends on the players themselves and how they decide to shape the political map of the game.
Work for the good of your country and see it rise to an empire.
Activities in this game are divided into several modules. First is the economy as a citizen in a country of your choice you must work to earn money, which you will get to spend for example, on food or purchase of weapons which are critical for your progress as a fighter. You will work in either private companies which are owned by players or government companies which are owned by the state. After progressing in the game you will finally get the opportunity to set up your own business and hire other players. If it prospers, we can even change it into a joint-stock company and enter the stock market and get even more money in this way.
In E-Sim, international wars are nothing out of the ordinary.
Become an influential politician.
The second module is a politics. Just like in real life politics in E-Sim are an extremely powerful tool that can be used for your own purposes. From time to time there are elections in the game in which you will not only vote, but also have the ability to run for the head of the party you're in. You can also apply for congress, where once elected you will be given the right to vote on laws proposed by your fellow congress members or your president and propose laws yourself. Voting on laws is important for your country as it can shape the lives of those around you. You can also try to become the head of a given party, and even take part in presidential elections and decide on the shape of the foreign policy of a given state (for example, who to declare war on). Career in politics is obviously not easy and in order to succeed in it, you have to have a good plan and compete for the votes of voters.
You can go bankrupt or become a rich man while playing the stock market.
The international war.
The last and probably the most important module is military. In E-Sim, countries are constantly fighting each other for control over territories which in return grant them access to more valuable raw materials. For this purpose, they form alliances, they fight international wars, but they also have to deal with, for example, uprisings in conquered countries or civil wars, which may explode on their territory. You can also take part in these clashes, although you are also given the opportunity to lead a life as a pacifist who focuses on other activities in the game (for example, running a successful newspaper or selling products).
At the auction you can sell or buy your dream inventory.
E-Sim is a unique browser game. It's creators ensured realistic representation of the mechanisms present in the real world and gave all power to the players who shape the image of the virtual Earth according to their own. So come and join them and help your country achieve its full potential.
Invest, produce and sell - be an entrepreneur in E-Sim.
Take part in numerous events for the E-Sim community.
