Android Forensics

SSD firmware destroys digital evidence, researchers find Forensic analysis of drives by investigators now uncertain

By John E Dunn | Techworld
Published: 10:48 GMT, 01 March 11

A technology built into many new solid state drives (SSDs) to improve their storage efficiency could inadvertently be making forensic analysis at a later date by police forces and intelligence agencies almost impossible to carry out to legally safe standards, researchers have discovered.

The detailed findings contained in Solid State Drives: The Beginning of the End for Current Practice in Digital Forensic Discovery? by Graeme B. Bell and Richard Boddington of Murdoch University in Perth, Australia, will make unsettling reading for professionals in the digital forensics field and beyond.

After conducting a series of experiments comparing a sample Corsair 64GB SSD with a conventional Hitachi 80GB magnetic hard drive (HDD), the team found a layer cake of data recovery problems caused by the ‘garbage collection’ or purging algorithms used in SSDs to keep them at peak performance.

After examining an SSD for traces of data after it had been quick formatted, the team expected the purging routines to kick in around 30-60 minutes later, a process that must happen on SSDs before new data can be written to those blocks. To their surprise, this happened in only three minutes, after which only 1,064 out of 316,666 evidence files were recoverable from the drive.

Going a stage further, they removed the drive from the PC and connected a ‘write blocker’, a piece of hardware designed to isolate the drive and stop any purging of its contents. Incredibly, after leaving this attached for only 20 minutes, almost 19 percent of its files had been wiped for good, a process the researchers put down the ability of SSDs to initiate certain routines independent of a computer.


.... MORE HERE

WPA Cracker

http://www.wpacracker.com/

An Introduction

WPA Cracker is a cloud cracking service for penetration testers and network auditors who need to check the security of WPA-PSK protected wireless networks.
WPA-PSK networks are vulnerable to dictionary attacks, but running a respectable-sized dictionary over a WPA network handshake can take days or weeks. WPA Cracker gives you access to a 400CPU cluster that will run your network capture against a 135 million word dictionary created specifically for WPA passwords. While this job would take over 5 days on a contemporary dual-core PC, on our cluster it takes an average of 20 minutes, for only $17.

Facebook to launch child safety 'panic button'

Facebook has announced it is to launch a "panic button" application on its social networking site.

The button, aimed at children and teenagers, will report abuse to the Child Exploitation and Online Protection Centre (Ceop) and Facebook.
The application will also appear on their homepage to say that "they are in control online".
The launch follows months of negotiation between Ceop and Facebook, which initially resisted the idea.
Ceop, the government law enforcement agency tasked with tracking down online sex offenders, called for a panic button to be installed on social networking sites last November.
Bebo became the first network to add the button with MySpace following suit, but Facebook resisted the change, saying its own reporting systems were sufficient.
Pressure mounted on Facebook following the rape and murder of 17-year-old Ashleigh Hall by a 33-year-old convicted sex offender, posing as a teenage boy, who she met on Facebook.
Forty-four police chiefs in England, Wales and Scotland, signed a letter backing Ceop's call for a panic button on every Facebook page.
'Reassurance for parents' The agreement to launch a child safety application is the culmination of months of negotiation between Ceop and Facebook.
Jim Gamble, Ceop's chief executive, said in a statement: "Our dialogue with Facebook about adopting the ClickCeop button is well documented - today however is a good day for child protection.
"By adding this application, Facebook users will have direct access to all the services that sit behind our ClickCeop button which should provide reassurance to every parent with teenagers on the site."
Facebook's head of communications in the UK, Sophy Silver, told BBC News that the new app would integrate reporting into both Facebook and Ceop's systems.
"Both sides are happy of where we have got to," she said.
"We still have the Facebook reporting system and by having a pre-packaged application that users play an active part in, you not only help keep them safe, it makes all of their friends aware too, and acts as a viral awareness campaign.
"Ultimately though, this makes for a safer environment for users and that's the most important part," she added.
In addition to the online reporting application, a new Facebook/Ceop page is being set up, with a range of topics that, it is hoped, will be of interest to teenagers - such as celebrities, music and exams - and will link these subjects to questions about online safety.

http://news.bbc.co.uk

Quantum teleportation achieved over ten miles of free space

Quantum teleportation has achieved a new milestone or, should we say, a new ten-milestone: scientists have recently had success teleporting information between photons over a free space distance of nearly ten miles, an unprecedented length. The researchers who have accomplished this feat note that this brings us closer to communicating information without needing a traditional signal, and that the ten miles they have reached could span the distance between the surface of the earth and space.
  "Quantum teleportation" is quite different from how many people imagine teleportation to work. Rather than picking one thing up and placing it somewhere else, quantum teleportation involves entangling two things, like photons or ions, so their states are dependent on one another and each can be affected by the measurement of the other's state.
When one of the items is sent a distance away, entanglement ensures that changing the state of one causes the other to change as well, allowing the teleportation of quantum information, if not matter. However, the distance particles can be from each other has been limited so far to a number of meters.
Teleportation over distances of a few hundred meters has previously only been accomplished with the photons traveling in fiber channels to help preserve their state. In this particular experiment, researchers maximally entangled two photons using both spatial and polarization modes and sent the one with higher energy through a ten-mile-long free space channel. They found that the distant photon was still able to respond to changes in state of the photon they held onto even at this unprecedented distance.
However, the long-distance teleportation of a photon is only a small step towards developing applications for the procedure. While photons are good at transmitting information, they are not as good as ions at allowing manipulation, an advancement we'd need for encryption. Researchers were also able to maintain the fidelity of the long-distance teleportation at 89 percent— decent enough for information, but still dangerous for the whole-body human teleportation that we're all looking forward to.

By Casey Johnston
Science, 2010. DOI: 10.1038/NPHOTON.2010.87  (About DOIs).  

Single group did 66% of world's phishing

A single criminal operation was responsible for two-thirds of all phishing attacks in the second half of 2009 and is responsible for a two-fold increase in the crime, a report published this week said.
The Avalanche gang is believed to have risen out of the ashes of the Rock Phish outfit, which by some estimates was responsible for half the world's phishing attacks before fizzling out in late 2008. Driving the success of both groups is their use of state-of-the-art technology for mass-producing imposter websites and distributing huge amounts of crimeware for automating identity theft.

"Avalanche uses the Rock's techniques but improved upon them, introducing greater volume and sophistication," the report, released by the Anti-Phishing Working Group, stated.

Central to Avalanche's success is its use of fast-flux botnets to host phishing sites. The use of peer-to-peer communications makes it impossible for a single ISP or hosting provider to to pull the plug on the infrastructure. The gang also excels at launching attacks from a relatively small number of domain names that often appear confusingly identical to each other, such as 11f1iili.com and 11t1jtiil.com. Those abilities also fuel the success.
There were 126,697 phishing attacks during the second half of 2009, more than double the number in the first half of the year or from July through December of 2008, the APWG report said. Avalanche, which was first identified in December of 2008, was responsible for 24 percent of phishing attacks in the first half of 2009 and for 66 percent in the second half. From July through the end of the year, Avalanche targeted the more than 40 major financial institutions, online services, and job search providers.
Curiously, Avalanche may turn out to be a victim of its own success.
"During an Avalanche campaign, it was not unusual for the target institutions, the relevant domain name registrar(s), a domain name registry, and other responders and service providers to all be aware of the campaign and working on mitigation at the same time," the report stated. "As a result, Avalanche attacks had a much shorter average uptime than non-Avalanche phishing attacks, and community efforts partially neutralized the advantage of the fast-flux hosting."
White hats briefly shut down the Avalanche infrastructure in mid November, and ever since then phishing attacks generated by the group have dropped precipitously. Last month, the gang launched just 59 attacks, each one with a separate domain.

A PDF of the report is here. ®
By Dan Goodin

Thieves Flood Victim’s Phone With Calls to Loot Bank Accounts

Bank thieves have rolled out a new weapon in their arsenal of tactics — telephony denial-of-service attacks that flood a victim’s phone with diversionary calls while the thieves drain the victim’s account of money.

A Florida dentist lost $400,000 from his retirement account last year in this manner, and the FBI said the attacks are growing.

A spokeswoman for the Communication Fraud Control Association — a telecom industry organization — told Threat Level that although fraudulent transfers have been halted in a number of cases, the losses are increasing.

“I know it’s in the millions,” said Roberta Aranoff, executive director of the CFCA. “It has exceeded a million dollars easily.”

Last November, Robert Thousand Jr., a semi-retired dentist in Florida, received a flood of calls to several phones. When he answered them, he heard a 30-second recording for a sex hotline, according to the St. Augustine Record.

In December, he discovered that $399,000 had been drained from his Ameritrade retirement account shortly after he’d received the calls. About $18,000 was transferred from his account on Nov. 23, with a $82,000-transfer following two days later. Five days after that, another $99,000 was drained, followed by two transfers of $100,000 each on Dec. 2 and 4. The thieves withdrew the money in New York.

Thousand’s son, who shares his name, received similar harassing calls, though his financial accounts were not touched. Thousand did not respond to a request from Threat Level for comment.

The FBI says the calls were a diversionary tactic, meant to tie up Thousand’s line so that Ameritrade couldn’t reach him to authenticate the money transfer requests. FBI spokesman Bryan Travers said AT&T, Thousand’s phone carrier, contacted the agency’s New Jersey office to help investigate the matter. The agency has since seen at least 16 similar cases since November, most of them occurring in the last few weeks.

In some cases, the victims simply heard dead air when they answered their phone or heard a brief advertisement or other recorded message. Some victims had to change their phone numbers to halt the harassing calls.

The perpetrator who targeted Thousand created a number of VoIP accounts, which were used with automated dialing tools to flood the dentist’s home, business and cellphone with calls.

Generally in these cases, Travers said, the thief obtains the victim’s account information through some other means — perhaps through a phishing attack or other method — and then contacts the financial institution to change the victim’s contact information. In this way, the institution will call the thief instead of the victim to verify a money transfer request.

Many banks, however, now contact customers at their previous phone number when contact information on their account has changed.

But with these attacks, the institution’s calls are prevented from reaching the victim, whose phone is tied up with a flood of diversionary calls.

AT&T spokesman Marty Richter told Threat Level that the perpetrators then generally contact the financial institution posing as the victim to complain that a requested money transfer hasn’t gone through. When the institution discloses that it tried unsuccessfully to contact the victim to authenticate the transfer, the perpetrator says he’s been having phone troubles and verifies that the transfer should proceed.

Richter says that other telecommunication companies have been alerted to the problem and are warning customers when they call to complain about harassing calls that the issue may be related to their financial accounts. The victims are warned to place fraud alerts on their financial and credit bureau accounts and block any electronic fraudulent money transfers that may be in the works.

“This may appear to some people that they’re just having a connect issue with their phone carrier,” he said, “and we want to alert them that this may not be the case.”

Travers said that in most cases so far, the victims have acted quickly enough to prevent money from being drained from their accounts, but he says there may be many other cases that haven’t yet been reported to the FBI. He urged consumers who may have been victims to contact the FBI.

Read More http://www.wired.com/threatlevel/2010/05/telephony-dos/#ixzz0nt0tgdrn
By Kim Zetter

German court orders wireless passwords for all

BERLIN (AP) -- Germany's top criminal court ruled Wednesday that Internet users need to secure their private wireless connections by password to prevent unauthorized people from using their Web access to illegally download data.

Internet users can be fined up to euro100 ($126) if a third party takes advantage of their unprotected WLAN connection to illegally download music or other files, the Karlsruhe-based court said in its verdict.

"Private users are obligated to check whether their wireless connection is adequately secured to the danger of unauthorized third parties abusing it to commit copyright violation," the court said.

But the court stopped short of holding the users responsible for the illegal content the third party downloads themselves.

The court also limited its decision, ruling that users could not be expected to constantly update their wireless connection's security - they are only required to protect their Internet access by setting up a password when they first install it.

The national consumer protection agency said the verdict was balanced.

Spokeswoman Carola Elbrecht told the German news agency DAPD it made sense that users should install protection for their wireless connection and that at the same time it was fair of the court not to expect constant technical updates by private users.

The ruling came after a musician, who the court did not identify, sued an Internet user whose wireless connection was used to illegally download a song which was subsequently offered on an online file sharing network.

But the user could prove that he was on vacation while the song was downloaded via his wireless connection. Still, the court ruled he was responsible to a degree for failing to protect his connection from abuse by third parties.

About 26 million homes in Germany have wireless Internet access, according to Bitkom, the German Association for Information Technology, Telecommunications and New Media.

© 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

PDF Exploits Explode, Continue Climb in 2010

Exploits of Adobe's PDF format jumped dramatically last year, and continue to climb during 2010, a McAfee security researcher said Wednesday.

Microsoft , meanwhile, recently said that more than 46% of the browser -based exploits during the second half of 2009 were aimed at vulnerabilities in Adobe's free Reader PDF viewer.

According to Toralv Dirro, a security strategist with McAfee Labs, the percentage of exploitative malware targeting PDF vulnerabilities has skyrocketed. In 2007 and 2008, only 2% of all malware that included a vulnerability exploit leveraged an Adobe Reader or Acrobat bug. The number jumped to 17% in 2009, and to 28% during the first quarter of 2010.

"In the last three years, attackers have found PDF vulnerabilities more and more useful, for a couple of reasons," Dirro said. "First of all, it's increasingly difficult for them to find new vulnerabilities with the operating system and within browsers that they can exploit across the different versions of Windows. And second, Reader is one of the most widely deployed applications that allows files to be accessed or opened within the browser."

Other factors for the jump in PDF exploits, argued Dirro, range from user belief that PDFs are safe to open, or at least safer to open than Microsoft Office documents, to the age of Adobe's code. "Quite a lot of PDF code was written years ago, and attackers are finding new security problems that no one thought of then," Dirro said. "That makes it difficult for Adobe to clean it up."

A recent discovery illustrated Dirro's point. Earlier this month, Belgium researcher Didier Stevens demonstrated how malicious PDFs could use a by-designed feature of the PDF specification to run attack code hidden in the file, and how to modify a warning message that Adobe Reader displays to further trick users into opening the document. Although some of what Stevens revealed has been publicly known for at least eight months, the technique has only been picked up by hackers in the last several weeks.

A major malware campaign using Stevens' tactics began Tuesday, with malicious PDFs attached to messages masquerading as instructions from companies' network administrators.

Microsoft also recently reported that PDF exploits remains a potent part of hackers' arsenals. In its newest Security Intelligence Report , Microsoft said that nearly half of all browser-based exploits in the second half of 2009 targeted Adobe's Reader. Three Reader vulnerabilities -- which were patched in May 2008, November 2008 and March 2009 -- accounted for more than 46% of all browser attacks.

McAfee rival Symantec has also tracked an explosion in PDF-based attacks. According to Symantec's latest Internet Security Threat Report , published last week, malicious PDFs were responsible for 49% of all Web-based attacks in all of 2009, compared to just 11% in 2008.

Like McAfee, Symantec also recorded a surge in reported Adobe Reader vulnerabilities. Of all browser plug-in bugs logged last year, 15% were in Reader's add-on for Internet Explorer, Firefox, Chrome and other Windows browsers. That was almost a four-fold increase from the 4% in 2008. And two of 2009's top five exploited vulnerabilities were in Adobe Reader.

Adobe declined to comment specifically about McAfee's and Microsoft's statistics on Reader vulnerabilities. Instead, a spokeswoman forwarded a statement the company has used before. "Given the relative ubiquity and cross-platform reach of many of our products, in particular our clients, Adobe has attracted -- and will likely continue to attract -- increasing attention from attackers," she said in an e-mail. "The majority of attacks we are seeing are exploiting software installations that are not up-to-date on the latest security updates."

The company's latest security move attempts to address the update issue; on April 13, Adobe switched on a service that silently updates customers' copies of Reader and Acrobat.

Adobe may be working on other ways to beef up Reader and Acrobat. According to one security researcher, Adobe will add sandboxing defenses to its PDF software this year. Sandboxing, perhaps best known as a technique used by Google 's Chrome browser, isolates processes from each other and the rest of the machine, preventing or hindering malicious code from escaping an application to wreak havoc or infect the computer with malware.

Adobe has acknowledged it will add sandboxing to Flash -- another of its products that is frequently targeted by exploits -- and has it at the top of its to-do list, according to Paul Betlem, senior director of Flash Player engineering.

Reader may, or may not, get sandboxing as well. When asked about the reports that Reader 10 would include sandboxing defenses, a company spokeswoman said Adobe had no announced plans but was "investigating how to get different features to work in a sandbox."

McAfee's Dirro said adding sandboxing to Adobe Reader would be a smart move. "It's one of the most useful ways to address a lot of different vulnerabilities," he said. "Sandboxing had proven to be fairly efficient at stopping attacks."

by Gregg Keizer
http://www.pcworld.com

Analysis of Attack on Google: Aurora Botnet Command Structure

Analysis of Attack on Google: Aurora Botnet Command Structure

Kneber_Spearphishing_Crimeware

kneber_spearphishing_crimeware-1

SHADOWS IN THE CLOUD: Investigating Cyber Espionage 2.0

SHADOWS IN THE CLOUD:  Investigating Cyber Espionage 2.0

Conducting Cybersecurity Research Legally and Ethically

Abstract

The primary legal obstacles to conducting cybersecurity are not outright prohibitions but rather the difficulty of determining which of a large set of complex statutes might regulate a given research project. Privacy, computer abuse, tort, and contract law are all potentially applicable. Moreover, even when the law permits a research activity, researchers may wonder whether it is ethically permissible. This paper seeks to clarify these issues by explaining the areas of law that are most generally applicable to cybersecurity researchers and offering guidelines for evaluating ethical issues that arise in this area of research.

http://www.usenix.org/event/leet08/tech/full_papers/burstein/burstein_html/

Wi-Fi 'Finders' Helping Thieves Locate and Steal Laptops

We don't recommend leaving your laptop in the car for any reason, but, if you must, make sure you turn off the Wi-Fi signal first. According to Network World, thieves are using devices meant to locate Wi-Fi networks to detect laptops and steal them. Apparently, just closing the screen won't prevent your laptop from being detected, either. Wi- Fi disconnection must be done manually, as it can take as long as a half-hour for a laptop to go into sleep mode.

The Wi-Fi "finders" that crooks use are often cheap and easily accessible. For less than $20, a start-up thief can purchase a ballpoint pen with a built-in Wi-Fi detector. Of course, the cheaper models aren't as accurate when locating the signals. (Using one in a full parking lot would be akin to searching for a needle in a haystack.) But for $50, you could purchase this Wi-Fi finder (pictured), which makes finding a laptop stuffed in the trunk of a car easy as pie.

What's our advice? Keep those laptops close at hand and make sure you only turn on the Wi-Fi signal when you'll be using it. [From: Network World]

Leaked intelligence documents:Facebook,Comcast, Microsoft

Leaked intelligence documents: Here's what Facebook and Comcast will tell the police about you!!!

Leaked Microsoft intelligence document: Here's what Microsoft will reveal to police about you

FTC: Identity Theft Is No. 1 Consumer Complaint

Are you really you? It’s hard to say.

That’s because identity theft was the top consumer complaint for 2009, the Federal Trade Commission reported Wednesday.

It was also the top complaint from the year before, although 5 percent fewer consumers reported it in 2009, the commission said.

Overall, of the 1.3 million complaints the agency received last year, 21 percent were for identity theft. Debt collection agencies ranked second, with 9 percent of complaints, according to the Consumer Sentinel Network Data Book released Wednesday.

Credit card fraud was the top complaint when it comes to identity theft, followed by fraud related to government benefits, utilities, phones and loans.

The FTC did not verify the complaints lodged with it. It said 72 percent of those reporting identity theft also notified a police department.

The complete 101-page report (.pdf) is available here.

By David Kravets

New Russian botnet tries to kill rival

'Kill Zeus' removes rival software from PCs, giving Spy Eye access to usernames, passwords

IDG News Service - An upstart Trojan horse program has decided to take on its much-larger rival by stealing data and then removing the malicious program from infected computers.

Security researchers say that the relatively unknown [Spy Eye toolkit] added this functionality just a few days ago in a bid to displace its larger rival, known as Zeus.

The feature, called "Kill Zeus," apparently removes the Zeus software from the victim's PC, giving Spy Eye exclusive access to usernames and passwords.

Zeus and Spy Eye are both Trojan-making toolkits, designed to give criminals an easy way to set up their own "botnet" networks of password-stealing programs. These programs emerged as a major problem in 2009, with the U.S. Federal Bureau of Investigation estimating last October that they have caused $100 million in losses.

Trojans such as Zeus and Spy Eye steal online banking credentials. This information is then used to empty bank accounts by transferring funds to so-called money mules -- U.S. residents with bank accounts -- who then move the cash out of the country.

Sensing an opportunity, a number of similar Trojans have emerged recently, including Filon, Clod and [Bugat], which was discovered just last month.

Spy Eye popped up in Russian cybercrime forums in December, according to Symantec Senior Research Manager Ben Greenbaum.

With its "Kill Zeus" option, Spy Eye is the most aggressive crimeware, however. The software can also steal data as it is transferred back to a Zeus command-and-control server, said Kevin Stevens, a researcher with SecureWorks. "This author knows that Zeus has a pretty good market, and he's looking to cut in," he said.

Turf wars are nothing new to cybercriminals. Two years ago a malicious program called Storm Worm began attacking servers controlled by a rival known as Srizbi. And a few years before that, the authors of the Netsky worm programmed their software to remove rival programs Bagle and MyDoom.

Spy Eye sells for about $500 on the black market, about one-fifth the price of premium versions of Zeus. To date, it has not been spotted on many PCs, however.

Still, the Trojan is being developed quickly and has a growing list of features, Greenbaum said. It can, for example, steal cached password information that is automatically filled in by the browser, and back itself up via e-mail. "This is interesting in its potential, but it's not currently a widespread threat at all," he said.

By Robert McMillan
http://www.computerworld.com

Facebook ‘Cash Scam’ Continues to Grow Even Bigger

Over the past few years social networking sites such as Facebook and Twitter have given unprecedented access to people’s private lives. More and more personal information is revealed through photos, status updates and conversations that are all being documented online. Last week, the Serious Fraud Office of London (SFO) warned that Facebook and Twitter are being used to harvest users’ personal financial details,

“The public should be aware of the predatory nature of fraudsters and be careful about revealing personal information on social-networking sites, as this has become a primary method of harvesting information and targeting victims,” SFO said.

In a joint venture between London police and Financial Services Authority, over 10,000 people were notified that their names were on a “master list” that contained a range of personal information, that might include: names, address, phone number, place of business, income and relationship status. While this is the only reported list, it’s quite possible thousands more were already victims of this latest cash scam.

Facebook users may not mention all that personal information on their Facebook page, however, they may have it listed on a combination of networking sites. For example, a Facebook user will list their name and location along with photos on Facebook. The scammer can take that information and then look you up on LinkedIn and Twitter to find out your personal website, job, position, average income, number of years employed, education level and parlay all that information into a “cash scam.”

Fraudsters are using this information to set up “boiler rooms” and contact people on this master list. Boilers rooms look to employ high pressure sales tactics to push unwanted, over priced, or sometimes non-existent stock to unsuspecting buyers. Boiler rooms are nothing new, but using Facebook to gather leads and target people is becoming a serious problem.

The FSA is clearly trying to stay ahead of the scam, “By writing to people now, we can raise awareness of this type of fraud and help protect people from losing money to these criminals,” FSA said. While multiple efforts are being taken to stop these criminals, these cash scam continue to grow and more boiler rooms continue to operate off shore. It’s up to the individual to be aware of such fraud and report any phone calls that you suspect could be criminal.

In the mean time, keep your friends close, your Facebook account closed to outsiders, and don’t allow just anyone to view your personal details on your Facebook page.

posted by Mr.404

Census of Files Available via BitTorrent

BitTorrent is popular because it lets anyone distribute large files at low cost. Which kinds of files are available on BitTorrent? Sauhard Sahi, a Princeton senior, decided to find out. Sauhard's independent work last semester, under my supervision, set out to measure what was available on BitTorrent. This post, summarizing his results, was co-written by Sauhard and me.

Sauhard chose a (uniform) random sample of files available via the trackerless variant of BitTorrent, using the Mainline DHT. The sample comprised 1021 files. He classified the files in the sample by file type, language, and apparent copyright status.

Before describing the results, we need to offer two caveats. First, the results apply only to the Mainline trackerless BitTorrent system that we surveyed. Other parts of the BitTorrent ecosystem might be different. Second, all files that were available were equally likely to appear in the sample -- the sample was not weighted by number of downloads, and it probably contains files that were never downloaded at all. So we can't say anything about the characteristics of BitTorrent downloads, or even of files that are downloaded via BitTorrent, only about files that are available on BitTorrent.

With that out of the way, here's what Sauhard found.

File types

46% movies and shows (non-pornographic)
14% games and software
14% pornography
10% music
1% books and guides
1% images
14% could not classify

Movies/Shows

For the movies and shows category, the predominant file format was AVI, and other formats included RMVB (a proprietary format for RealPlayer), MPEG, raw DVD, and some multi-part RAR archives. Interestingly, this section was heavily biased towards recent movies, instead of being spread out evenly over a number of years. In descending order of frequency, we found that 60% of the randomly selected movies and shows were in English, 8% were in Spanish, 7% were in Russian, 5% were in Polish, 5% were in Japanese, 4% were in Chinese, 4% could not be determined, 3% were in French, 1% were in Italian, and other infrequent languages accounted for 2% of the distribution.

Games/Software

For the games and software category, there was no clearly dominant file type, but common file types for software included ISO disc images, multi-part RAR archives, and EXE (Windows executables). The games were targeted for running on different architectures, such as the XBOX 360, Nintendo Wii, and Windows PC’s. In descending order, we found that 74% of games and software in the sample were in English, 12% were in Japanese, 5% were in Spanish, 4% were in Chinese, 2% were in Polish, and 1% were in Russian and French each.

Pornography

For the pornography category, the predominant encoding format was AVI, similar to the movies category. However, there were significantly more MPG and WMV (Windows Media Video) files available. Also, most pornography torrents included the full pornographic video, a sample of the video (a 1-5 minute extract of the video), as well as posters or images of the porn stars in JPEG format. Also, as these videos are not typically dated like movies are, it is difficult to make any remarks regarding the recency bias for pornographic torrents. Our assumption would be that demand for pornography is not as time-sensitive as demand for movies, so it is likely that these pornographic videos constitute a broader spectrum of time than the movies do. In descending order, we found that 53% of pornography in our sample was in English, 16% was in Chinese, 15% was in Japanese, 6% was in Russian, 3% was in German, 2% was in French, 2% was unclassifiable, and Italian, Hindi, and Spanish appeared infrequently (1% each).

Music

For the music category, the predominant encoding format for music was MP3, there were some albums ripped to WMA (Windows Media Audio, a Microsoft codec), and there were also ISO images and multi-part RAR archives. There is still a bias towards recent albums and songs, but it is not as strongly evident as it is for movies—perhaps because people are more willing to continue seeding music even after it is no longer new, so these torrents are able to stay alive longer in the DHT. In descending order, we found that 78% of music torrents in our sample were in English, 6% were in Russian, 4% were in Spanish, 2% were in Japanese and Chinese each, and other infrequent languages appeared 1% each.

Books/Guides

The books/guides and images categories were fairly minor. We classified 15 torrents under books and guides—13 were in English, 1 was in French, and 1 was in Russian. We classified 3 image torrents—one was a set of national park wallpapers, one was a set of pictures of BMW cars (both of these are English), and one was a Japanese comic strip.

Apparent Copyright Infringement

Our final assessment involved determining whether or not each file seemed likely to be copyright-infringing. We classified a file as likely non-infringing if it appeared to be (1) in the public domain, (2) freely available through legitimate channels, or (3) user-generated content. These were judgment calls on our part, based on the contents of the files, together with some external research.

By this definition, all of the 476 movies or TV shows in the sample were found to be likely infringing. We found seven of the 148 files in the games and software category to be likely non-infringing—including two Linux distributions, free plug-in packs for games, as well as free and beta software. In the pornography category, one of the 145 files claimed to be an amateur video, and we gave it the benefit of the doubt as likely non-infringing. All of the 98 music torrents were likely infringing. Two of the fifteen files in the books/guides category seemed to be likely non-infringing.

Overall, we classified ten of the 1021 files, or approximately 1%, as likely non-infringing, This result should be interpreted with caution, as we may have missed some non-infringing files, and our sample is of files available, not files actually downloaded. Still, the result suggests strongly that copyright infringement is widespread among BitTorrent users.

One in four children sent pornography, says surveyOne in four children have sent or been sent inappropriate material including pornography via email,

Photo: GETTY

One in four children have sent or been sent inappropriate material including pornography via email, according to a survey.
The research also found that one in 20 children, aged between six and 15, had communicated with a stranger via webcam and one in 50 have actually met a stranger they first contacted online.

The report, which surveyed 500 children, found that many children are getting away with behaviour online that they wouldn’t get away with in the real world, largely because of their parents’ lack of understanding and awareness of their internet habits and of safety precautions.
More than six out of 10 children (62 per cent) said they lie to parents about what they have been looking at online and over half (53 per cent) delete the history on their web browser so their parents can’t see what they have been looking at.

The survey, by TalkTalk, the broadband provider, also found that and one in nine (11 per cent) have either bullied someone online or been bullied online themselves.

In December, the Government announced that every primary schoolchild in the country will be taught about the dangers of the internet and how to safely surf online.

The “Click Clever, Click Safe’ campaign comes in response to a report by Prof Tanya Byron, the child psychologist and broadcaster, who was asked by the Government to consider how to protect children online.

Prof Tanya Byron, who oversaw the TalkTalk research, said: “It’s crucial that parents educate themselves about what’s going on online and what their kids are doing there.”

By Urmee Khan, Digital and Media Correspondent