‘Stegano’ Malvertising Exposes Millions To Hacking
December 13, 2016 by admin
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Since October, millions of internet users have been exposed to malicious code embedded in the pixels from tainted banner ads designed to install Trojans and spyware, according to security firm ESET.
The attack campaign, called Stegano, has been spreading from malicious ads in a “number of reputable news websites,” ESET said in a Tuesday blog post. It’s been preying on Internet Explorer users by scanning for vulnerabilities in Adobe Flash and then exploiting them.
The attack is designed to infect victims with malware that can steal email password credentials through its keylogging and screenshot grabbing features, among others.
The attack is also hard to detect. To infect their victims, the hackers were essentially poisoning the pixels used in the tainted banner ads, ESET said in a separate post.
The hackers concealed their malicious coding in the parameters controlling the pixels’ transparency on the banner ad. This allowed their attack to go unnoticed by the legitimate advertising networks.
Victims will typically see a banner ad for a product called “Browser Defense” or “Broxu.” But in reality, the ad is also designed to run Javascript that will secretly open a new browser window to a malicious website designed to exploit vulnerabilities in Flash that will help carry out the rest of the attack.
Hackers have used similar so-called malvertising tactics to secretly serve malicious coding over legitimate online advertising networks. It’s an attack method that has proven to be a successful at quickly spreading malware to potentially millions.
The makers behind the Stegano attack were also careful to create safeguards to prevent detection, ESET said. For instance, the banner ads will alternate between serving a malicious version or a clean version, depending on the settings run on the victim’s computer. It will also check for any security products or virtualization software on the machine before proceeding with the attack.
ESET declined to name the news websites that were found unknowingly displaying the malicious ads, but cautioned that the attack was widespread, and could have been hosted through other popular sites as well.
Source-http://www.thegurureview.net/aroundnet-category/stegano-malvertising-ads-expose-millions-of-online-users-to-hacking.html
Is Changing Your Password Often A Good Idea?
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Carnegie Mellon University professor Lorrie Cranor, who is the US FTC’s technology guru, has debunked a myth that it is a good idea to change your password often.
Talking to Ars Technica she said that while frequent password changes can lock hackers out they make make security worse.
She told the BSides security conference in Las Vegas that frequent password changes do little to improve security and very possibly make security worse by encouraging the use of passwords that are more susceptible to cracking.
A study published in 2010 by researchers from the University of North Carolina at Chapel Hill more or less confirmed her views. The researchers obtained the cryptographic hashes to 10,000 expired accounts that once belonged to university employees, faculty, or students who had been required to change their passcodes every three months. Researchers received data not only for the last password used but also for passwords that had been changed over time.
By studying the data, the researchers identified common techniques account holders used when they were required to change passwords. A password like “tarheels#1″, for instance (excluding the quotation marks) frequently became “tArheels#1″ after the first change, “taRheels#1″ on the second change and so on. Or it might be changed to “tarheels#11″ on the first change and “tarheels#111″ on the second. Another common technique was to substitute a digit to make it “tarheels#2″, “tarheels#3″, and so on.
“The UNC researchers said if people have to change their passwords every 90 days, they tend to use a pattern and they do what we call a transformation. They take their old passwords, they change it in some small way, and they come up with a new password.”
The researchers used the transformations they uncovered to develop algorithms that could predict changes with great accuracy.
A separate study from researchers at Carleton University showed that frequent password changes hamper attackers only minimally and probably not enough to offset the inconvenience to end users.
Courtesy-Fud
Is Samsung Preparing For A Price War?
Samsung Electronics changing its approach to its memory chip business and focus on market share over profit margins and the industry will suffer, according to one analyst.
Bernstein Research’s senior analyst Mark C. Newman said that the competitive dynamic in the memory chip industry is not as good as we thought due to Samsung’s aggressive and opportunistic behavior. This is analyst speak for Samsung is engaging in a supply and price war with the other big names in the memory chip marking business – SK hynix and Micron.
“Rather than sit back and enjoy elevated profit margins with a 40 percent market share in DRAMs, Samsung is intent on stretching their share to closer to 50 percent,” he said.
Newman said the company is gaining significant market share in the NAND sector.
“Although Samsung cares about profits, their actions have been opportunistic and more aggressive than we predicted at the expense of laggards particularly Micron Technology in DRAMs and SK hynix in NANDs,” he said.
SK hynix is expected to suffer. “In NAND, we see Samsung continuing to stretch their lead in 3D NAND, which will put continued pressure on the rest of the field. SK hynix is one of the two obvious losers.”
Newman said that Samsung’s antics have destroyed the “level of trust” among competitors, perhaps “permanently,” as demand has dropped drastically with PC sales growth down to high single digits in 2015 with this year shaping up to be the same.
“Sales of smartphones, the main savior to memory demand growth have also weakened considerably to single digit growth this year and servers with datacenters are not strong enough to absorb the excess, particularly in DRAM,” Newman said.
He is worried that Samsung could create an oversupply in the industry.
“The oversupply issue is if anything only getting worse, with higher than normal inventories now an even bigger worry. Although we were right about the shrink slowing, thus reducing supply growth, the flip side of this trend is that capital spending and R&D costs are soaring thus putting a dent in memory cost declines,” he said.
China’s potential entry into the market and new technologies will provide further worries “over the longer term.”
“Today’s oversupply situation would become infinitely worse if and when China’s XMC ramps up big amounts of capacity. New memory technologies such as 3D X-point, ReRAM and MRAM stand on the sidelines and threaten to cannibalize part of the mainstream memory market,” he said.
Courtesy-Fud
Microsoft Goes Quantum Computing
Software giant Microsoft is focusing a lot of its R&D money on quantum computing.
Peter Lee, the corporate vice president of Microsoft Research said that Quantum computing is “stupendously exciting right now.”
Apparently it is Microsoft Research’s largest area of investment and Lee is pretty certain it is on the verge of some major scientific achievements.
“There’s just hope and optimism those scientific achievements will lead to practical outcomes. It’s hard to know when and where,” Lee said.
This is the first we have heard about Redmond’s quantum ambitions for a while. In 2014 the company revealed its “Station Q” group located on the University of California, Santa Barbara, campus, which has focused on quantum computing since its establishment a decade ago.
We sort of assumed that Microsoft would not get much work done on Quantum states because faced with a choice most cats would rather die in a box rather than listen to Steve Ballmer. But we guess with a more cat friendly CEO it is moving ahead.
Lee said that he has explained quantum computing research to Microsoft chief executive Satya Nadella by comparing it with speech processing. In that field, Microsoft researchers worked “so hard for a decade with no practical improvement,” he said. Then deep learning brought about considerable leaps forward in speech recognition and Microsoft was in on the ground floor.
“With quantum, we’ve made just gigantic advancements making semiconductor interfacing, allowing semiconductor materials to operate as though they were superconducting. What that means is the possibility of semiconductors that can operate at extremely high clock rates with very, very little or no heat dissipation. It’s just really spectacular.”
Courtesy-Fud
The Linux Foundation Goes Zephyr
The Linux Foundation has launched its Zephyr Project as part of a cunning plan to create an open source, small footprint, modular, scalable, connected, real-time OS for IoT devices.
While there have been cut-down Linux implementations before the increase in numbers of smart, connected devices has made something a little more specialized more important.
Zephyr is all about minimizing the power, space, and cost budgets of IoT hardware.
For example a cut down Linux needs 200KB of RAM and 1MB of flash, IoT end points, which will often be controlled by tiny microcontrollers.
Zephyr has a small footpoint “microkernel” and an even tinier “nanokernel.” All this enables it to be CPU architecture independent, run on as little as 10KB while being scalable.
It can still support a broad range of wireless and wired technologies and of course is entirely open saucy released under the Apache v2.0 License.
It works on Bluetooth, Bluetooth Low Energy, and IEEE 802.15.4 (6LoWPAN) at the moment and supports x86, ARM, and ARC architectures.
Courtesy-Fud
Is Microsoft A Risk?
Hewlett Packard Enterprise (HPE) has cast a shade on what it believes to be the biggest risks facing enterprises, and included on that list is Microsoft.
We ain’t surprised, but it is quite a shocking and naked fact when you consider it. The naming and resulting shaming happens in the HPE Cyber Risk Report 2016, which HPE said “identifies the top security threats plaguing enterprises”.
Enterprises, it seems, have myriad problems, of which Microsoft is just one.
“In 2015, we saw attackers infiltrate networks at an alarming rate, leading to some of the largest data breaches to date, but now is not the time to take the foot off the gas and put the enterprise on lockdown,” said Sue Barsamian, senior vice president and general manager for security products at HPE.
“We must learn from these incidents, understand and monitor the risk environment, and build security into the fabric of the organisation to better mitigate known and unknown threats, which will enable companies to fearlessly innovate and accelerate business growth.”
Microsoft earned its place in the enterprise nightmare probably because of its ubiquity. Applications, malware and vulnerabilities are a real problem, and it is Windows that provides the platform for this havoc.
“Software vulnerability exploitation continues to be a primary vector for attack, with mobile exploits gaining traction. Similar to 2014, the top 10 vulnerabilities exploited in 2015 were more than one-year-old, with 68 percent being three years old or more,” explained the report.
“In 2015, Microsoft Windows represented the most targeted software platform, with 42 percent of the top 20 discovered exploits directed at Microsoft platforms and applications.”
It is not all bad news for Redmond, as the Google-operated Android is also put forward as a professional pain in the butt. So is iOS, before Apple users get any ideas.
“Malware has evolved from being simply disruptive to a revenue-generating activity for attackers. While the overall number of newly discovered malware samples declined 3.6 percent year over year, the attack targets shifted notably in line with evolving enterprise trends and focused heavily on monetisation,” added the firm.
“As the number of connected mobile devices expands, malware is diversifying to target the most popular mobile operating platforms. The number of Android threats, malware and potentially unwanted applications have grown to more than 10,000 new threats discovered daily, reaching a total year-over-year increase of 153 percent.
“Apple iOS represented the greatest growth rate with a malware sample increase of more than 230 percent.”
Courtesy-TheInq
Android Is Coming To The Desktop
Jide Technology has released an Alpha build of its much praised Remix OS version of Android, available free of charge.
The Android fork, which adds conventional desktop features such as a taskbar, start menu and support for multiple windows, has been a huge hit, overshadowing the implementation of Android revealed in Google’s recent high-end tablet the Pixel C.
The initial build, as ever, is designed to fish for bugs and aid developers. A beta will follow in the coming weeks. The Alpha doesn’t contain Google Mobile Services apps such as the Play store and Gmail, but the finished version will. In the meantime, users can sideload the gApps package or go to the Amazon Web Store.
There may also be problems with some video codecs, but we’re told this is a licensing issue which will be resolved in the final version too. In the meantime, the first release is perfectly useable.
Compatibility with most Android apps is instant, but the user community can ‘upvote’ their favourites on the Remix OS site to flag what’s working best in each category.
The company has already released a small desktop machine of its own, called the Remix Mini, the world’s first fully functioning Android PC, priced at just $70 after a successful Kickstarter campaign. It has also developed a 2-in-1 ultrabook, the Remix Ultra, and has licensed Remix OS to several Far East tablet manufacturers.
In this new move, the company has teamed up with Android-x86, a group that has been working on an executable version of Android for computers since 2009, to launch a Remix OS installer which will allow existing hardware to become Remix OS powered, or as a partition on a dual-boot machine.
A third option is to store the OS on a USB stick, meaning that you can make any computer your own. This technique has already been popular through the Keepod programme which offers Android on a stick to countries without access to high-speed computers.
The advantages of Remix OS to the developing world are significant. Bench tests have shown that Remix OS works significantly faster than Windows, which will potentially breathe new life into older machines and make modern machines run at previously impossible speeds.
Remix OS was designed by three ex-Google engineers and includes access to the full Google Apps suite and the Google Play store.
David Ko, co-founder of Jide Technology, said: “Today’s public release of Remix OS, based on Android-x86, is something that we’ve been working towards since we founded Jide Technology in 2014.
“All of us are driven by the goal of making computing a more accessible experience, and this free, public release allows us to do this. We believe Remix OS is the natural evolution of Android and we’re proud to be at the forefront of this change.”
The public Alpha will be available to download from Jide and android-x86 from 12 January, and a beta update is expected swiftly afterwards. The INQUIRER has been using a Remix Mini for over a month now, and a full review of the operating system is coming soon.
Courtesy-TheInq
Pawn Storm Hacking Develops New Tools For Cyberespionage
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A Russian cyberespionage group known as Pawn Storm has made use of new tools in an ongoing attack campaign against defense contractors with the goal of defeating network isolation policies.
Since August, the group has been engaged in an attack campaign focused on defense contractors, according to security researchers from Kaspersky Lab.
During this operation, the group has used a new version of a backdoor program called AZZY and a new set of data-stealing modules. One of those modules monitors for USB storage devices plugged into the computer and steals files from them based on rules defined by the attackers.
The Kaspersky Lab researchers believe that this module’s goal is to defeat so-called network air gaps, network segments where sensitive data is stored and which are not connected to the Internet to limit their risk of compromise.
However, it’s fairly common for employees in organizations that use such network isolation policies to move data from air-gapped computers to their workstations using USB thumb drives.
Pawn Storm joins other sophisticated cyberespionage groups, like Equation and Flame, that are known to have used malware designed to defeat network air gaps.
“Over the last year, the Sofacy group has increased its activity almost tenfold when compared to previous years, becoming one of the most prolific, agile and dynamic threat actors in the arena,” the Kaspersky researchers said in a blog post. “This activity spiked in July 2015, when the group dropped two completely new exploits, an Office and Java zero-day.”
Source- http://www.thegurureview.net/aroundnet-category/pawn-storm-hacking-group-develops-new-tools-for-cyberespionage.html
Microsoft To Block SHA-1 Hashing
Software Giant Microsoft has joined Mozilla and will consider blocking the SHA-1 hashing algorithm on Windows to keep the US spooks from using it to spy on users computers.
Redmond had earlier said that Windows would block SHA-1 signed TLS (Transport Layer Security) certificates from January 1, 2017, but is now mulling moving up the date to June.
There have been concerns about the algorithm’s security as researchers have proven that a forged digital certificate that has the same SHA-1 hash as a legitimate one can be created. Users can then be tricked into interacting with a spoofed site in what is called a hash collision.
In October, a team of cryptoanalysts warned that the SHA-1 standard should be withdrawn as the cost of breaking the encryption had dropped faster than expected to US$75,000 to $120,000 in 2015 using freely available cloud computing.
Programme manager for Microsoft Edge Kyle Pflug wrote in his blog that Redmond will coordinate with other browser vendors to evaluate the impact of this timeline based on telemetry and current projections for feasibility of SHA-1 collisions.
Mozilla said in October that in view of recent attacks it was considering a cut-off of July 1, 2016 to start rejecting all SHA-1 SSL certificates, regardless of when they were issued, ahead of an earlier scheduled date of January 1, 2017.
Courtesy- http://www.thegurureview.net/computing-category/microsoft-to-block-sha-1-hashing.html
Stagefright 2.0 Exploits Android Vulnerabilities
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Newly found vulnerabilities in the way Android handles media files can allow attackers to compromise devices by tricking users into visiting maliciously crafted Web pages.
The vulnerabilities can lead to remote code execution on almost all devices that run Android, starting with version 1.0 of the OS released in 2008 to the latest 5.1.1, researchers from mobile security firm Zimperium said in a report published Thursday.
The flaws are in the way Android processes the metadata of MP3 audio files and MP4 video files, and they can be exploited when the Android system or another app that relies on Android’s media libraries previews such files.
The Zimperium researchers found similar multimedia processing flaws earlier this year in an Android library called Stagefright that could have been exploited by simply sending Android devices a maliciously crafted MMS message.
Those flaws triggered a coordinated patching effort from device manufacturers that Android’s lead security engineer, Adrian Ludwig, called the “single largest unified software update in the world.” It also contributed to Google, Samsung and LG committing to monthly security updates going forward.
One of the flaws newly discovered by Zimperium is located in a core Android library called libutils and affects almost all devices running Android versions older than 5.0 (Lollipop). The vulnerability can also be exploited in Android Lollipop (5.0 – 5.1.1) by combining it with another bug found in the Stagefright library.
The Zimperium researchers refer to the new attack as Stagefright 2.0 and believe that it affects more than 1 billion devices.
Since the previous attack vector of MMS was closed in newer versions of Google Hangouts and other messaging apps after the previous Stagefright flaws were found, the most straight-forward exploitation method for the latest vulnerabilities is through Web browsers, the Zimperium researchers said.
Zimperium reported the flaws to Google on Aug. 15 and plans to release proof-of-concept exploit code once a fix is released.
That fix will come on Oct. 5 as part of the new scheduled monthly Android security update, a Google representative said.
Source-http://www.thegurureview.net/mobile-category/stagefright-2-0-exploits-android-vulnerabilities.html