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Showing posts with label Malicious Codes. Show all posts
Showing posts with label Malicious Codes. Show all posts

Wednesday, May 25, 2011

10 Free Ways to Speed Up Your PC


Does it feel like you can make a pot of coffee and clean the kitchen all in the time it takes for your computer system to boot up? Do you find yourself daydreaming of dropping it off the top of your office building while you’re waiting for web pages to load? If it seems like your computer is running slower every day, here are some things to do to get your “old reliable” running in tip-top shape. Of course, budget-savvy Nerd Chicks are always looking for ways to save some dough, so we’ve made sure they are all free.

1. Get Rid of the Nasties

Viruses and spyware don’t always break your computer, but they do always slow it down. They’re more common than you may think, and can hang out in your system, gumming up the works, without you even knowing it. Microsoft Security Essentials is a great, easy, all-in-one solution to keep your computer healthy and running in top form. Download it here.

2. Update Your OS

Windows issues updates all the time. These can patch holes in the software, closing vulnerabilities that viruses and spyware exploit, and generally make Windows run better. If you’re running Windows XP, right click on the My Computer icon on the desktop, select Properties and click on the Automatic Updates tab. Make sure you set them to download and install automatically.

3. Purge “Bloatware"

Still have that Norton Trial software installed from when you bought your machine three years ago? Get rid of it! Every time it pops up a window “reminding” you to buy it, I’m guessing a little voice in your head mutters unpleasant things. It’s also slowing down your system as the antiquated software runs in the background. Search for “Norton Removal Tool” (or “McAfee Removal Tool”) to make sure that you get the software fully uninstalled.

4. Speed Your Startup

MSConfig is a tool built in to most versions of Windows. Even novice computer surfers can use this tool to stop programs from starting automatically every time you boot up. While certain things are necessary for Windows to function, if your system is trying to turn on iTunes, your printer, and Adobe every time it boots up, the poor thing’s got a lot of things to get going before it can launch your Sudoku. Click the "Start" button. If you have a search option, type “msconfig” into the search field. If you don’t have a search option, but have a “Run” button on the startup menu, click that instead. When you do this, a window will appear on screen with the word "Run:" next to a blank text field. Type "msconfig" in the blank text field and press "Enter". Click the "Startup" tab at the top of the menu. Uncheck the boxes next to programs that you don't need during startup – but only programs you recognize! Click the "Apply" button, then select "OK", and restart your computer. I can almost hear your computer sighing in relief from here.

5. Defrag Your Hard Drive

Every time you save a file, or update software, your hard drive stores each new thing in chronological order. This means that when you launch Word, your system has to search all over your hard drive to find all the pieces that have been stored over the months, or years. Defragging simply means that your hard drive will take all the “like” things and put them together, allowing programs to launch and work faster. Windows 7 comes configured to defrag automatically, however Windows XP users will need to start the process manually. From the Start menu, right-click the “My Computer” option. Select “Manage” and choose disk defragmenter under the Storage section. Keep in mind that the process can take several hours, so set it to run at night. Also, remember to disable your system’s hibernate mode & screen saver before starting. When the process is complete, restart your PC.

6. Repair the Registry

Your system’s registry is like your hard drive’s table of contents. If there are incorrect entries, it can take your drive longer to find all the pieces of data it needs to launch and run programs. Glary Utilities is a great free application that you can install to quickly and easily fix registry errors and optimize your system’s performance. Download the free version here.

7. Clear Out the Cookies

Every time you visit a website, it stores little pieces of itself, or programs, on your system. The idea is that the next time you visit the site it will load that content faster. The problem is that it’s rare that we return to the same sites and see the same things over and over again. Instead, the process of digging through several MBs of temporary internet files will lead all websites to load more slowly. Clear out your cache with CCleaner , a top rated free software program for cleaning out temporary files and making your system run at its best. One tip: use the cookies tab to select cookies you want to keep from sites you visit often and/or want to continue to login to automatically (like your email, or your bank).

8. Clean it, No Really!

Your computer has a fan in it that draws in air to cool the CPU and components. If this fan or vent becomes clogged with dust, pet hair, or other nasties, your system can overheat, causing it to run more sluggishly and eventually break. Grab a can of air and take your PC outside for a field trip. Don’t just blow into the intake vent: open the case, don’t blow air too closely at the components, and blow dust away from the case.

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9. Ditch Internet Explorer

There are many alternative browsers you can use to access the Internet. Most techies agree that Google’s Chrome is the fastest option that doesn’t compromise compatibility.

10. If all else fails…

A surefire way to ensure that your system is running as close to good-as-new as you can hope to get is to back up your data, format your hard drive, and reinstall Windows. Keep in mind that you will need to reinstall all of your software, including office. Don’t forget to install your anti-virus and anti-spyware before surfing the net!

Getting on a regular maintenance schedule will save you, and your trusty computer, much pain and suffering. Especially if these tips keep you from drop kicking your PC off the roof! If you’re struggling with any of these steps, or want more info, check out my website, www.callnerds.com.

Tuesday, May 3, 2011

Sony says 25 million more accounts hacked

NEW YORK – Sony Corp. said Monday that hackers may have taken personal information from an additional 24.6 million user accounts after a review of the recent PlayStation Network breach found an intrusion at a division that makes multiplayer online games.

The data breach comes on top of the 77 million PlayStation accounts it has already said were jeopardized by a malicious intrusion.

The latest incident occurred April 16 and 17 — earlier than the PlayStation break-in, which occurred from April 17 to 19, Sony said.

About 23,400 financial records from an outdated 2007 database involving people outside the U.S. may have been stolen in the newly discovered breach, including 10,700 direct debit records of customers in Austria, Germany, the Netherlands and Spain, it said.

The outdated information contained credit card numbers, debit card numbers and expiration dates, but not the 3-digit security code on the back of credit cards. The direct debit records included bank account numbers, customer names, account names and customer addresses.

Company spokeswoman Taina Rodriguez said Sony had no evidence the information taken from Sony Online Entertainment, or SOE, was used illicitly for financial gain.

"We had previously believed that SOE customer data had not been obtained in the cyber-attacks on the company, but on May 1 we concluded that SOE account information may have been stolen and we are notifying you as soon as possible," Sony said in a message to customers.

Sony said that it shut service Monday morning to Sony Online Entertainment games, which are available on personal computers, Facebook and the PlayStation 3 console. Its most popular games include "EverQuest," "Free Realms" and "DC Universe Online."

The company said it will grant players 30 days of additional time on their subscriptions, along with one day for each day the system is down. It is also creating a "make good" plan for its multiplayer online games.

On Sunday, Sony executives bowed in apology and said they would beef up security measures after an earlier breach caused it to shut down its PlayStation network on April 20. The company is working with the FBI and other authorities to investigate what it called "a criminal cyber attack" on Sony's data center in San Diego, Calif.

The company said it would offer "welcome back" freebies such as complimentary downloads and 30 days of free service to PlayStation customers around the world to show remorse and appreciation.

PlayStation spokesman Patrick Seybold, in a blog post Monday, denied a report that said a group tried to sell millions of credit card numbers back to Sony.

He also said that while user passwords had not been encrypted, they were transformed using a simpler function called a hash that did not leave them exposed as clear text.

Wednesday, July 28, 2010

FBI says mastermind of botnet nabbed


(Sod-a-Blog) - International authorities have arrested a computer hacker believed responsible for creating the malicious computer code that infected as many as 12 million computers, invading major banks and corporations around the world, FBI officials told The Associated Press on Tuesday.

A 23-year-old Slovenian known as Iserdo was picked up in Maribor, Slovenia, after a lengthy investigation by Slovenian Criminal Police there along with FBI and Spanish authorities.

His arrest comes about five months after Spanish police broke up the massive cyber scam, arresting three of the alleged ringleaders who operated the so-called Mariposa botnet, stealing credit cards and online banking credentials. The botnet _ a network of infected computers _ appeared in December 2008 and infected more than half of the Fortune 1,000 companies and at least 40 major banks.

Botnets are networks of infected PCs that have been hijacked from their owners, often without their knowledge, and put into the control of criminals.

Jeffrey Troy, the FBI's deputy assistant director for the cyber division, said Tuesday that Iserdo's arrest is a major break in the investigation. He said it will take the alleged cyber mastermind off the street and prevent him from updating the malicious software code or somehow regaining control of computers that are still infected.

Officials declined to release Iserdo's real name and the exact charges filed against him, but said the arrest took place about 10 days ago and the man has been released on bond.

"To use an analogy here," said Troy, "as opposed to arresting the guy who broke into your home, we've arrested the guy that gave him the crowbar, the map and the best houses in the neighborhood. And that is a huge break in the investigation of cyber crimes."

Troy said more arrests are expected and are likely to extend beyond Spain and Slovenia and include additional operators who allegedly bought the malware from Iserdo. Authorities would not say how much Iserdo supposedly charged, but said hackers could buy the software package for a certain amount, or pay more to have it customized or get additional features. Internet reports suggest the fees ranged from as much as $500 for basic packages to more than $1,300 for more advanced versions.

Cyber masterminds behind the biggest botnets aren't often taken down largely because it is easy for experienced hackers to hide their identities by disguising the source of their Internet traffic. Usually the computer resources they use are stolen. And the investigations are complex and technical, often spanning dozens of countries with conflicting or even non-existing cyber crime laws.

For instance, there have been no arrests yet in the spread of the Conficker worm, which infected 3 million to 12 million PCs running Microsoft Corp.'s Windows operating system and caused widespread fear that it could be used as a kind of Internet super weapon.

The Conficker botnet is still active, but is closely watched by security researchers. The infected computers have so far been used to make money in ordinary ways, pumping out spam and spreading fake antivirus software.

The Mariposa botnet, which has been dismantled, was easily one of the world's biggest botnets. It spread to more than 190 countries, according to researchers. It also appears to be far more sophisticated than the botnet that was used to hack into Google Inc. and other companies in the attack that led Google to threaten to pull out of China.

The researchers that helped take down Mariposa _ which is from the Spanish word for "butterfly" _ first started looking at it in the spring of 2009.

Hackers spread the botnet by using instant-messaging malicious links to contacts on infected computers. They also used removable thumb drives and peer-to-peer networks to spread the botnet.

The investigation has included federal and international law enforcement as well as a team of more than 100 people, including FBI agents, members of a specialized botnet investigative team and the so-called Mariposa working group, which includes researchers and private industry experts.