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SAN FRANCISCO, Aug. 23 (Xinhua) -- The amount of malware targeted at devices based on Google's Android platform surged 76 percent in the second quarter over the previous three months in 2011, making it the most attacked mobile operating system, computer security firm McAfee said on Tuesday.A new McAfee study found that in the second quarter, Android- based malware surpassed Nokia's Symbian as the most popular target for mobile malware developers.While Symbian and Java ME, a platform designed for mobile devices and other embedded systems, remain the most targeted to date, the rapid rise in Android malware indicates that the platform could become an increasing target for cyber criminals McAfee said.Models pose with the new Samsung Galaxy S Android smartphone during its launch ceremony at the headquarters of Samsung Electronics in Seoul in this June 8, 2010 file photograph.It warned that the attacks on Android platform could affect everything from calendar apps, to text messages, and even a fake Angry Birds updates.According to the study, malware on mobile platforms is increasing steadily, often mimicking the same code as personal computer-based threats, as vast amount of personal and business data are now found on user's smartphones and other mobile devices."This year we've seen record-breaking numbers of malware, especially on mobile devices, where the uptick is in direct correlation to popularity," Vincent Weafer, senior vice president of McAfee Labs, said in a statement."Overall attacks are becoming more stealth and more sophisticated, suggesting that we could see attacks that remain unnoticed for longer periods of time," he noted.

BEIJING, Aug. 27 (Xinhua) -- Heavy rain battered several east China provinces Saturday, destroying homes and farmlands, while drought persisted in some of the country's arid central and southwestern regions.On Friday and Saturday, five counties in Anhui Province were hit by downpour, the provincial meteorological bureau said.It said 23 towns reported over 200 mm of rainfall in the 24 hours from 8 a.m. Friday to 8 a.m. Saturday. In some villages of Huaiyuan County, the precipitation topped 300 mm, about one third of the annual average volume.In Fengtai County alone, 2,048 people were stranded by rain-triggered flood. As of 9 p.m. Saturday, about 800 of them were still waiting for evacuation.Incomplete statistics provided by the provincial government said 280 houses toppled in the rain disaster and another 580 homes were damaged. About 54,800 hectares of cropland was drowned by rain and flood.The direct economic loss was estimated at 240 million yuan (37.6 million U.S. dollars), the provincial government said Saturday night.The provincial weather bureau forecast heavy rain will continue in most parts of Anhui in the coming three days.Heavy rain also wreaked havoc in seven cities and counties of the eastern Shandong Province, causing 230 million yuan of direct economic losses.Torrential rain that lasted more than 24 hours from Friday to Saturday afternoon forced evacuation of nearly 2,000 people in parts of Zaozhuang, Liaocheng and Linyi cities, the provincial civil affairs department said.It said nearly 500 homes toppled and more than 800 others were damaged.China Meteorological Administration has forecast heavy rain in the coming three days in Anhui, Shandong, Liaoning, Jiangxi provinces and parts of the Xinjiang Uygur Autonomous Region in the coming two to three days.Little rain has been predicted, however, for the drought-hit provinces in central and southwestern China, the administration said on its website.While the predicted rainfall for Guizhou, Sichuan, Chongqing, Yunnan, Hunan and Guangxi averages only 2 to 8 mm in four days from Aug. 28 to 31, it said the high temperature in these areas will still hover over 35 degrees Celsius.Affected by the approaching Typhoon Nanmadol, the coastal areas of Guangdong Province will experience high tides Sunday, but the scorching weather will stay next week, the provincial weather bureau said.The high temperature in most parts of the province has topped 35 degrees Celsius.

BEIJING, July 19 (Xinhuanet) -- Amazon on Monday launched its Kindle textbook rental service, which allows students to rent "tens of thousands of textbooks", according to Los Angeles Times.The e-book textbook rental service will help students save as much as 80 percent on some titles.Amazon said that students can now rent textbooks from 30 to 360 days and can either rent them again or purchase them once the rental period is up."Students tell us that they enjoy the low prices we offer on new and used print textbooks. Now we're excited to offer students an option to rent Kindle textbooks and only pay for the time they need—with savings up to 80 percent off the print list price on a 30-day rental," Dave Limp, vice president of Amazon Kindle said, according to PC Magazine.Rentals can be read on Amazon's Kindle eReaders, and Kindle apps for PCs, as well as smartphones and tablet computers running Apple's iOS, Microsoft Windows Phone 7 and Google's Android operating system.Rentals also have a clear advantage over physical copies that students' notes and highlighted content will be stored in the Amazon Cloud, and can be accessed if students rent the books again or buy at a later time.

WASHINGTON, Aug. 10 (Xinhua) -- After a journey of almost three years, NASA's Mars rover Opportunity has reached the Red Planet's Endeavour crater to study rocks never seen before, the U.S. National Aeronautics and Space Administration (NASA) announced on Wednesday.Scientists hope it will find rocks and terrain much older than any other that the itinerant robot has examined during its seven years on the red planet.The U.S. space agency said that Opportunity arrived at the rim of Endeavour on Tuesday. The golf cart-size rover is expected to remain at the 22-kilometer-wide crater for the next few years.A portion of the west rim of Endeavour crater sweeps southward in this color view from NASA's Mars Exploration Rover Opportunity."NASA is continuing to write remarkable chapters in our nation' s story of exploration with discoveries on Mars and trips to an array of challenging new destinations," NASA Administrator Charles Bolden said in a statement. "Opportunity's findings and data ... will play a key role in making possible future human missions to Mars and other places where humans have not yet been."NASA's Mars Reconnaissance Orbiter, which has been circling the planet since late 2005, detected clay minerals that form in wet conditions in the crater. Scientists want to find out if the minerals date back to Mars' distant past, when the planet is believed to have been wetter and warmer than the dry frozen desert it is today."We're soon going to get the opportunity to sample a rock type the rovers haven't seen yet," said Matthew Golombek, Mars Exploration Rover science team member, at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "Clay minerals form in wet conditions so we may learn about a potentially habitable environment that appears to have been very different from those responsible for the rocks comprising the plains."NASA is searching for signs that Mars had a habitable environment billions of years ago. Knowledge of the Martian climate will be important to future manned missions there, and can shed light on the forces that shaped Earth's climate.NASA launched the Mars rovers Opportunity and Spirit in 2003 for what were planned to be three-month missions. But both continued operating well beyond that. Spirit stopped communicating in March 2010.