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from the about-that-thing-you-thought-was-air-gapped... dept.
El Reg reports:
Data exfiltrators send info over PCs' power supply cables
Malware tickles unused cores to put signals in current
If you want your computer to be really secure, disconnect its power cable.
So says Mordechai Guri and his team of side-channel sleuths at the Ben-Gurion University of the Negev.The crew have penned a paper titled PowerHammer: Exfiltrating Data from Air-Gapped Computers through Power Lines that explains how attackers could install malware that regulates CPU utilisation and creates fluctuations in the current flow that could modulate and encode data. The variations would be "propagated through the power lines" to the outside world.
Depending on the attacker's approach, data could be exfiltrated at between 10 and 1,000 bits-per-second. The higher speed would work if attackers can get at the cable connected to the computer's power supply. The slower speed works if attackers can only access a building's electrical services panel.
The PowerHammer malware spikes the CPU utilisation by choosing cores that aren't currently in use by user operations (to make it less noticeable).
Guri and his pals use frequency shift keying to encode data onto the line.
After that, it's pretty simple, because all the attacker needs is to decide where to put the receiver current clamp: near the target machine if you can get away with it, behind the switchboard if you have to.
This seems hinky to me.
First, there's the point that the bad guys will need PHYSICAL ACCESS to the premises or even to the individual machine.
Next, if the current clamp is put around the typical line cord, the sum of the current in the hot wire and the neutral (return) wire will be zero. (An inductive current sensor is typically put over only one of the wires, so they will need to do some surgery on that cable — which will be obvious.)
Putting a 100% online UPS between the computer and the AC power supply will also interfere. [ed.]
(Score: 1, Troll) by Bot on Saturday April 14 2018, @10:49AM (6 children)
AC, you should get two things:
1- zionism needs antisemitism, so if there are not enough natural antisemites some will be added. How easy would have been to send diaspora jews back to the palestinian desert if there had been no Hitler? On a side note, why is Soros getting muslims into Europe?
2- since jew is not the one that only follows the torah, but has talmud and kabbalah and actively denies the divinity of the christ (exactly like muslims), for any modern metric Jesus cannot be a jew.
This is basic reading comprehension, dunno why you should need to be reminded of that but...
Account abandoned.
(Score: 2) by Runaway1956 on Saturday April 14 2018, @02:00PM (4 children)
>quote>for any modern metric Jesus cannot be a jew.
You're gonna have to explain that. You're saying that "modern man" and "modern logic" must deny that Jesus was a Jew?
(Score: 2) by Bot on Sunday April 15 2018, @08:21AM (3 children)
No modern man, modern logic, but modern jew. Who relies on extra torah information whose mere existence is ante-christus.
Were a jew putting a big ? on Jesus and saying HE does not believe he was the messiah, one could argue about their being the big brothers in religion. As things are, the 3 monotheistic religions worshiping the same God meme should be denied by all the three religions, especially Christians.
Then come the coexist meme who is literally the most fascist 1984 doublespeak slogan ever.
- Citizen
- Here we go again, what
- Coexist
- yes, you see, the gospel says to "love your enemy" which is one step furth...
- Shut up about your religion, it is divisive
- I was telling you that we are one step...
- SHUT UP
- but shutting up is the one thing we are not able to do as we are tasked with announc...
- COEXIST by STFU is the idea, citizen.
Account abandoned.
(Score: 2) by Runaway1956 on Sunday April 15 2018, @11:11AM (2 children)
Sorry, but if you hope for anyone to understand you post, you'll have to raise your literacy level some. You're making no sense at all.
(Score: 2) by Bot on Monday April 16 2018, @02:42PM (1 child)
You should try drawing AST of my posts until one conveys meaning.
Too much work, you say? Consider that bots have to do the same for your ramblings.
Jews are those who put other things above the messiah, whether He materializes or not eventually.
Zionism, Kabbalah, Talmud.
So when somebody says Jesus was a jew and implicitly binds Him to modern jews we have a problem.
Hopefully this is clear now.
Account abandoned.
(Score: 2) by Runaway1956 on Monday April 16 2018, @02:52PM
So, Jesus wasn't a Jew because - uhhh - money changers? I think maybe you've got it backward. Jesus implied that the money changers couldn't be Jews because they placed money ahead of God.
(Score: 0) by Anonymous Coward on Saturday April 14 2018, @09:49PM
Israelis are not semites, and anyone who questions the israeli narrative is not anti-semite.
Anyone who dislikes and hates the israelis and discriminates against them is not anti-semite.
Let me repeat: Israelis are not semites. They come from the kingdom of Khazaria. Israeli jews are not semites.
In fact, israelis are the most hostile anti-semites that can exist.