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Gonzalo San Gil, PhD.

Linux Security - How Can Your Linux Be Hacked Using Malware, Trojans, Worms, Web Script... - 0 views

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    " Is it possible that Linux can be infected with viruses? Probably, you heard of this in some debates. But here are some facts that you need to know to better understand how Linux is secured and what things can damage a Linux system. See how "
Gonzalo San Gil, PhD.

What is a Zero-Day Threat? - Definition from Techopedia - 0 views

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    "Zero-day exploits are often put up by renowned hacker groups. Typically, the zero-day attack exploits a bug that neither developers, nor the users, know about. Indeed, this is exactly what the malicious coders anticipate. By discovering a software vulnerability before the software's developers do, a hacker can make a worm or virus that can be used to exploit the vulnerability and harm computers"
Paul Merrell

Protocols of the Hackers of Zion? « LobeLog - 0 views

  • When Israeli Prime Minister Benjamin Netanyahu met with Google chairman Eric Schmidt on Tuesday afternoon, he boasted about Israel’s “robust hi-tech and cyber industries.” According to The Jerusalem Post, “Netanyahu also noted that ‘Israel was making great efforts to diversify the markets with which it is trading in the technological field.'” Just how diversified and developed Israeli hi-tech innovation has become was revealed the very next morning, when the Russian cyber-security firm Kaspersky Labs, which claims more than 400 million users internationally, announced that sophisticated spyware with the hallmarks of Israeli origin (although no country was explicitly identified) had targeted three European hotels that had been venues for negotiations over Iran’s nuclear program.
  • Wednesday’s Wall Street Journal, one of the first news sources to break the story, reported that Kaspersky itself had been hacked by malware whose code was remarkably similar to that of a virus attributed to Israel. Code-named “Duqu” because it used the letters DQ in the names of the files it created, the malware had first been detected in 2011. On Thursday, Symantec, another cyber-security firm, announced it too had discovered Duqu 2 on its global network, striking undisclosed telecommunication sites in Europe, North Africa, Hong Kong, and  Southeast Asia. It said that Duqu 2 is much more difficult to detect that its predecessor because it lives exclusively in the memory of the computers it infects, rather than writing files to a drive or disk. The original Duqu shared coding with — and was written on the same platform as — Stuxnet, the computer worm  that partially disabled enrichment centrifuges in Iranian nuclear power plants, according to a 2012 report in The New York Times. Intelligence and military experts said that Stuxnet was first tested at Dimona, a nuclear-reactor complex in the Negev desert that houses Israel’s own clandestine nuclear weapons program. While Stuxnet is widely believed to have been a joint Israeli-U.S. operation, Israel seems to have developed and implemented Duqu on its own.
  • Coding of the spyware that targeted two Swiss hotels and one in Vienna—both sites where talks were held between the P5+1 and Iran—so closely resembled that of Duqu that Kaspersky has dubbed it “Duqu 2.” A Kaspersky report contends that the new and improved Duqu would have been almost impossible to create without access to the original Duqu code. Duqu 2’s one hundred “modules” enabled the cyber attackers to commandeer infected computers, compress video feeds  (including those from hotel surveillance cameras), monitor and disrupt telephone service and Wi-Fi, and steal electronic files. The hackers’ penetration of computers used by the front desk would have allowed them to determine the room numbers of negotiators and delegation members. Duqu 2 also gave the hackers the ability to operate two-way microphones in the hotels’ elevators and control their alarm systems.
Paul Merrell

Internet Giants Erect Barriers to Spy Agencies - NYTimes.com - 0 views

  • As fast as it can, Google is sealing up cracks in its systems that Edward J. Snowden revealed the N.S.A. had brilliantly exploited. It is encrypting more data as it moves among its servers and helping customers encode their own emails. Facebook, Microsoft and Yahoo are taking similar steps.
  • After years of cooperating with the government, the immediate goal now is to thwart Washington — as well as Beijing and Moscow. The strategy is also intended to preserve business overseas in places like Brazil and Germany that have threatened to entrust data only to local providers. Google, for example, is laying its own fiber optic cable under the world’s oceans, a project that began as an effort to cut costs and extend its influence, but now has an added purpose: to assure that the company will have more control over the movement of its customer data.
  • A year after Mr. Snowden’s revelations, the era of quiet cooperation is over. Telecommunications companies say they are denying requests to volunteer data not covered by existing law. A.T.&T., Verizon and others say that compared with a year ago, they are far more reluctant to cooperate with the United States government in “gray areas” where there is no explicit requirement for a legal warrant.
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  • Eric Grosse, Google’s security chief, suggested in an interview that the N.S.A.'s own behavior invited the new arms race.“I am willing to help on the purely defensive side of things,” he said, referring to Washington’s efforts to enlist Silicon Valley in cybersecurity efforts. “But signals intercept is totally off the table,” he said, referring to national intelligence gathering.“No hard feelings, but my job is to make their job hard,” he added.
  • In Washington, officials acknowledge that covert programs are now far harder to execute because American technology companies, fearful of losing international business, are hardening their networks and saying no to requests for the kind of help they once quietly provided.Continue reading the main story Robert S. Litt, the general counsel of the Office of the Director of National Intelligence, which oversees all 17 American spy agencies, said on Wednesday that it was “an unquestionable loss for our nation that companies are losing the willingness to cooperate legally and voluntarily” with American spy agencies.
  • Many point to an episode in 2012, when Russian security researchers uncovered a state espionage tool, Flame, on Iranian computers. Flame, like the Stuxnet worm, is believed to have been produced at least in part by American intelligence agencies. It was created by exploiting a previously unknown flaw in Microsoft’s operating systems. Companies argue that others could have later taken advantage of this defect.Worried that such an episode undercuts confidence in its wares, Microsoft is now fully encrypting all its products, including Hotmail and Outlook.com, by the end of this year with 2,048-bit encryption, a stronger protection that would take a government far longer to crack. The software is protected by encryption both when it is in data centers and when data is being sent over the Internet, said Bradford L. Smith, the company’s general counsel.
  • Mr. Smith also said the company was setting up “transparency centers” abroad so that technical experts of foreign governments could come in and inspect Microsoft’s proprietary source code. That will allow foreign governments to check to make sure there are no “back doors” that would permit snooping by United States intelligence agencies. The first such center is being set up in Brussels.Microsoft has also pushed back harder in court. In a Seattle case, the government issued a “national security letter” to compel Microsoft to turn over data about a customer, along with a gag order to prevent Microsoft from telling the customer it had been compelled to provide its communications to government officials. Microsoft challenged the gag order as violating the First Amendment. The government backed down.
  • Hardware firms like Cisco, which makes routers and switches, have found their products a frequent subject of Mr. Snowden’s disclosures, and their business has declined steadily in places like Asia, Brazil and Europe over the last year. The company is still struggling to convince foreign customers that their networks are safe from hackers — and free of “back doors” installed by the N.S.A. The frustration, companies here say, is that it is nearly impossible to prove that their systems are N.S.A.-proof.
  • In one slide from the disclosures, N.S.A. analysts pointed to a sweet spot inside Google’s data centers, where they could catch traffic in unencrypted form. Next to a quickly drawn smiley face, an N.S.A. analyst, referring to an acronym for a common layer of protection, had noted, “SSL added and removed here!”
  • Facebook and Yahoo have also been encrypting traffic among their internal servers. And Facebook, Google and Microsoft have been moving to more strongly encrypt consumer traffic with so-called Perfect Forward Secrecy, specifically devised to make it more labor intensive for the N.S.A. or anyone to read stored encrypted communications.One of the biggest indirect consequences from the Snowden revelations, technology executives say, has been the surge in demands from foreign governments that saw what kind of access to user information the N.S.A. received — voluntarily or surreptitiously. Now they want the same.
  • The latest move in the war between intelligence agencies and technology companies arrived this week, in the form of a new Google encryption tool. The company released a user-friendly, email encryption method to replace the clunky and often mistake-prone encryption schemes the N.S.A. has readily exploited.But the best part of the tool was buried in Google’s code, which included a jab at the N.S.A.'s smiley-face slide. The code included the phrase: “ssl-added-and-removed-here-; - )”
Paul Merrell

U.S. Embedded Spyware Overseas, Report Claims - NYTimes.com - 0 views

  • The United States has found a way to permanently embed surveillance and sabotage tools in computers and networks it has targeted in Iran, Russia, Pakistan, China, Afghanistan and other countries closely watched by American intelligence agencies, according to a Russian cybersecurity firm.In a presentation of its findings at a conference in Mexico on Monday, Kaspersky Lab, the Russian firm, said that the implants had been placed by what it called the “Equation Group,” which appears to be a veiled reference to the National Security Agency and its military counterpart, United States Cyber Command.
  • It linked the techniques to those used in Stuxnet, the computer worm that disabled about 1,000 centrifuges in Iran’s nuclear enrichment program. It was later revealed that Stuxnet was part of a program code-named Olympic Games and run jointly by Israel and the United States.Kaspersky’s report said that Olympic Games had similarities to a much broader effort to infect computers well beyond those in Iran. It detected particularly high infection rates in computers in Iran, Pakistan and Russia, three countries whose nuclear programs the United States routinely monitors.
  • Some of the implants burrow so deep into the computer systems, Kaspersky said, that they infect the “firmware,” the embedded software that preps the computer’s hardware before the operating system starts. It is beyond the reach of existing antivirus products and most security controls, Kaspersky reported, making it virtually impossible to wipe out.
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  • In many cases, it also allows the American intelligence agencies to grab the encryption keys off a machine, unnoticed, and unlock scrambled contents. Moreover, many of the tools are designed to run on computers that are disconnected from the Internet, which was the case in the computers controlling Iran’s nuclear enrichment plants.
Paul Merrell

'Shadow Brokers' give away more NSA hacking tools - 0 views

  • The elusive Shadow Brokers didn't have much luck selling the NSA's hacking tools, so they're giving more of the software away -- to everyone. In a Medium post, the mysterious team supplied the password for an encrypted file containing many of the Equation Group surveillance tools swiped back in 2016. Supposedly, the group posted the content in "protest" at President Trump turning his back on the people who voted for him. The leaked data appears to check out, according to researchers, but some of it is a couple of decades old and focused on platforms like Linux. If anything, the leak might backfire. Edward Snowden notes that while the leak is "nowhere near" representing the NSA's complete tool set, there's enough that the NSA should "instantly identify" where and how the kit leaked. This doesn't mean the Shadow Brokers themselves are about to face capture. However, this may give the agency info it needs to both connect the dots (how much of a role did NSA contractor Harold Thomas Martin III play in the online leak, for instance?) and prevent a repeat incident.Does this open a can of worms? It's hard to say -- researchers are still combing over the data. If there are any hacks that can be made useful, though, this could be problematic for server operators worried about cybercrime. If nothing else, it shows that the Shadow Brokers didn't reveal their full hand.
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