Showing posts with label anti-virus. Show all posts
Showing posts with label anti-virus. Show all posts

Friday, August 20, 2010

Avira AntiVir 10 Review

Version 10 of Avira AntiVir is offering an improved removal of malware and its remnants. Find out what AntiVir Personal Edition has to offer! Avira antivirus download is everywhere but watch out for fake AV exploiting AntiVir's good name.

What's New in Avira AntiVir 10 Free

Avira released Avira AntiVir Version 10 last March 2010. The new version boasts new features in AntiVir Personal edition:

  • Shadow Copy function - The program is now using the Shadow Copy technology by Microsoft in Windows. This allows the antivirus to scan locked or currently in use files.
  • Simplified UI on detected malware - The user interface in AntiVir 10 that prompts users for action when a malware is detected has changed to single option only instead of 6. More about this in the Malware Protection section in page 2 of this article.
  • Generic system repair - The malware removal method used by AntiVir is now improved. Remnants of malware in the Windows registry or any critical area in the system are now completely removed. This is why AntiVir 10 has received a 5.5 score out of 6.0 from AV-Test.org*.

* AV-Test.org published August 16, 2010 the result of their test on 19 security solutions - http://www.av-test.org/certifications?order=repair_desc&lang=en

Installation and System Requirements
Rating Excellent

AntiVir Personal edition runs on Windows 7, Vista and XP. Windows 2000 users can still use AntiVir program but Avira will stop supporting Windows 2000 on July 13, 2011. Please note Microsoft has discontinued support to Windows 2000. Avira wrote on their website that the AntiVir ProActiv technology in the paid solutions of Avira will not run in Windows 2000. This is why using unsupported operating systems is not recommended.

Please note that I recommend getting AntiVir from the vendors' website or reputable download sites only. There are many rogue antivirus distributors that are exploiting the name of legitimate antivirus programs. Avira antivirus download is located here on their website. The program is currently available in 9 languages.

The installation of AntiVir Free is a quick process using its Express install method. A custom installation is also offered but I recommend using the custom install, only if you are advanced user. If Windows Defender is enabled in Vista and Windows 7 or installed in XP, AntiVir recommends disabling Windows Defender manually:

AntiVir recommends disabling Windows Defender

The configuration wizard for AntiVir 10 is presented after installing AntiVir using the "custom" install. To take advantage of better protection, I recommend using the high detection level:

Heuristic Detection Configuration

You should also configure Avira AntiVir to detect all types of threats that the program is capable of detecting:

Selection of Threats Detection

Also, you should configure AntiVir Guard to use the Secure mode so it will start as early as possible to immediately block or remove malware that will auto-start right after the user login to Windows:

Secure Start of Avira Guard

Other recommended settings are to allow AntiVir scanner and guard to scan all files by choosing the Expert mode in the Configuration window. Use this setting only if you have enough RAM installed on your computer:

Scan All Files by AntiVir Guard

Finally, configure AntiVir by enabling the advanced processes protection for the program

Advanced AntiVir Processes Protection

Memory Usage & Program Performance
Rating Average

The memory usage by AntiVir Personal edition is acceptable. In the test system, Avira is only using 24MB of memory. The running processes are avshadow.exe, avguard.exe, sched.exe and avgnt.exe. If you have the antivirus configuration and the program's UI window opened, you will find avcenter.exe and avconfig.exe as active processes which will use 11MB and 17MB of memory, respectively.

The only issues that I noticed is when opening the configuration window of AntiVir on "Archives," the setting will take a while before displaying the available options.

Updating AntiVir detection signature is easy using its built-in updater. However, the program will display AntiVir Notifiers to promote the paid edition of Avira AntiVir.

On Page 2, our review of Avira AntiVir 2010 continues including a look at scan performance and malware protection and removal.



Thursday, August 19, 2010

Free Online Virus Scan Using VirusTotal

Single or multiple file scan using VirusTotal helps the community and yourself in protecting the computer against malware, virus or a bad URL. Find out how to use VirusTotal online virus scan using a browser, e-mail, VirusTotal Uploader or VTzilla Firefox plugin.

Online Virus Scan Using VirusTotal

VirusTotal-logoVirusTotal is a free online virus, malware and URL scanner. The service is provided by Hispasec Sistemas, an independent IT security laboratory. Online scanning of virus or malware by VirusTotal is not an antivirus replacement or protection but to report or submit suspicious or positive malware samples. Computer users who have suspicious samples that are not detected by installed antivirus programs can submit the files using VirusTotal website or VirusTotal Uploader as long as the file size does not exceed 20MB. If you are using a proxy connection or you want to use a secure connection, VirusTotal lets you send the files for analysis with SSL protocol. Submitted files are scanned using multiple antivirus scanner engine by antivirus or anti-malware vendors. The samples are sent to the participating antivirus company for further analysis. If the sample is not known or a variant, it will be added to protect their customers.

VirusTotal Website & VirusTotal Uploader

To scan files using VirusTotal online virus scan, you can use the following method:

  • VirusTotal website - By visiting the website using any browser, you will be able to submit files to scan. The file is scanned against the detection database of several antivirus vendors and the result is presented in the browser. If the hash value is found in the VirusTotal (VT) database, you will see the available scan result. If you'd rather see a new scan result, e.g. to find out if other antivirus has added detection after it was submitted a day or two ago, you have the option to re-scan your submission.
  • VirusTotal Uploader - This is the small application that you will install in your computer. If you are using Vista or Windows 7, you have the option to install the application with elevated permission:
    VirusTotal Uploader

    After the install, you can right-click on any file to submit for online scan using VT. You can also open the VirusTotal Uploader to start using the advanced feature of the application:

    Advanced VirusTotal Uploader Functions

    The application uses little hard-disk space, which means it's worth adding it in your computer!

    File size used by VirusTotal Uploader

Similar to VirusTotal online scan website, the VirusTotal Uploader can detect if the files you submitted using the application have been already scanned by their service:

VirusTotal Uploader After Submitting Existing Sample in their Server

By re-uploading the sample, it will be scanned again. The running processes is displayed by VirusTotal is good because it refreshes the list of running processes in no time. In the screenshot below, a FakeAV downloader that I received in a malware spam message this week is automatically detected by VirusTotal Uploader as new running processes, right after I execute:

Running Processes Displayed by VirusTotal

Note that the said malware sample file_13671.exe will immediately shut-down itself to launch the Security Tool virus and you'll notice in the next image that VirusTotal Uploader has detected the new malware processes 986934.exe, and dropped by file_13671.exe.

Security Tool Processes Detected by VirusTotal as Active Processes

Unfortunately, the said process is not detected by any malware scanner because VirusTotal service is not a system-wide virus scanner:

Undetected Processes by Many Antivirus Vendors

VirusTotal Email Interface and VTzilla Firefox Plugin

Other methods to use VirusTotal virus, malware and URL scanner:

  • VirusTotal email interface - If you rather email a file to scan, simply send an email to scan@virustotal.com. Type SCAN in the subject field of the message or SCAN+XML as the subject to receive an XML attachment with the results. Note that you can only send up to a 20MB file.
  • VTzilla Firefox Plugin - Firefox users can now scan the URL of the site you are viewing, or scan a link. Just download the installer of VTzilla add-on for Firefox. The scanner will check the status of the website against the database of Opera, Firefox, Google SafeBrowsing, Microsoft SmartScreen, PhishTank and TRUSTe.
    URL Scan Using VirusTotal Firefox Plugin

    The above is a sample of a clean site - calendarofupdates.com while below is a rogue website but not detected as a malicious site or website that is hosting a rogue program, Internet Security 2010.

    Rogue Program Website Distributor
    Is-download is Rogue Website

If you want to search VirusTotal service for file, URL or comments by VTCommunity users, simply enter it in the add-ons box of VTzilla.



Wednesday, May 19, 2010

10 Best Ways to Use Your PC While You're Sleeping or at Work

As much as we like to multitask, there's only so much a processor can handle at once. And some processes, like games, monopolize CPU clock cycles, making it inconvenient to run other processor-intensive utilities in the background. That's why we keep our home PC powered on while we're at sleep or at the office. Forget about energy savings--a powerful PC is meant to be utilized!

From scheduled FTP downloads to converting digital photos and more, here are the ten best ways to keep your PC busy so it won't miss you when you're gone. Downtime be damned!

Record TV Shows and Movies

Sure, you can record TV shows and movies while you use your PC, but what do you do if you have two or three programs all battling for your attention? If you can't catch your favorites on Hulu or Boxee, or if you don't have a TV tuner than can handle multiple programs, take advantage of repeat broadcasts of many programs; catch the game live, and record your favorite news programs or movies later.

If your favorite movie station insists on having a marathon of your favorite movie, you might as well record the 2AM showing and watch something else in prime time. If you use Windows Media Center, you can use either the program guide or the movies guide to record movies.

Patch Applications and Run Windows Update

Windows Update enables you to decide when to download and install updates for Windows and for Microsoft Office and other programs supported by Windows Update/Microsoft Update. The default setting is in the middle of the night, but if your PC is busy with other tasks then, consider a time like Wednesday morning after you head off to work (Wednesday morning is also a perfect time to catch Microsoft's Patch Tuesday updates). Need a reminder on how to adjust your settings? Here's how to do it with Windows XP and with Windows Vista (and Windows 7).

Scan Your PC with Anti-virus and Anti-malware Software

Although most current anti-virus and anti-malware programs can run while you use your computer for other tasks, you're still better off to check your machine for problems when you're not using it. Depending upon your favorite software, you might be able to schedule scans from within the software, or in some cases, you might need to run Windows Task Schedule/Scheduled Tasks service separately.

To find out if your favorite programs have built-in scheduling, you might need to switch to the program's advanced mode or advanced menus. For example, to schedule scans with Spybot S&D, you must switch to the Advanced mode and open the Settings tag to locate the scheduler. However, you might need to update to the paid versions of some scan programs to have access to scheduling functions.

Depending upon the speed of your anti-virus and anti-malware scanners, you might be able to schedule them on the same day or night. If possible, schedule the scanner's update process to run before the scan program itself.


Check Your Hard Drive for Errors with Chkdsk+Defrag

While malware and spyware can deep-six your computer's performance, so can problems with your hard disk's structure. Use the dynamic duo of chkdsk and defrag to check your hard disks for errors and defragment files to keep your storage in good shape.

Chkdsk can be run from the command prompt, and by using command-prompt switches when you schedule chkdsk to run, you have a great deal of control over how chkdsk works. If you want to repair disk errors on the C: (system) drive, you'll need to schedule chkdsk to run at startup.

You can shut down and restart Windows automatically using Task Scheduler, enabling you to run Chkdsk on the system drive at startup. You should run Chkdsk before you run Defrag on a given drive to assure that files are not being moved to corrupt portions of the disk.

In Windows 7, you can select multiple drives for defragmenting, which realigns small file fragments into larger contiguous blocks. This enables faster file reads and writes, especially on drives with frequent changes, such as the drive you use for temporary or swap files or drives with frequent modifications to data files.

Backup Your PC!

You can configure most commercial backup programs as well as Windows's own backup programs to run on a schedule. To make scheduled backups work properly, keep the following in mind:

  • Use an external hard disk or network location that's big enough for the backup (you won't be around to flip DVDs or removable media in and out of a backup drive). Use the default compression setting for the best combination of backup performance and backup size.
  • Use the backup scheduler included in the backup software.
  • Make sure your backup location is ready to receive the backup. With an external hard disk, make sure it's turned on and connected to your PC. With a network backup, make sure the remote drive or server is connected to the network – preferably, to a wired rather than a wireless connection.
  • If you have time, verify the backup.
  • For best performance, use gigabit Ethernet for network backups and eSATA or USB 3.0 for local drive backups.

To learn more about using Windows 7 backup, see our Windows 7 feature focus article.

Process Photos and Transcode Videos

If you’re a serious digital photographer, you already know that shooting in RAW mode provides much more control over exposure, white balance, and other factors than shooting in JPEG. However, when it comes to sharing or printing your photos, JPEG rules. Cut out the tedium of converting your photos manually by using automation features in your photo editing software.

With Photoshop Elements and Adobe Camera RAW, you can use Process Multiple Files to convert RAW files into virtually any other format supported by Photoshop Elements, apply quick fixes, resize images, rename files, and add labels.

With Adobe Photoshop CS4 and Adobe Camera RAW, you can use the Image Processor to automate the conversion process and run actions. If you still use Adobe Photoshop CS3 and Adobe Camera RAW, you can also use Image Processor.

Depending upon what type of video you're encoding or transcoding, there are many choices, all of which take time better spent when you're away from your PC. Here are some of our tutorials and product guides:

How To: Download, Save and Convert Flash Video to Play on your iPod or DVD Player

Ultimate Guide to Playing and Transcoding Downloaded Videos

The Last DVD and Blu-Ray Ripping Guide You'll Ever Need

The Power User's Guide to Video Encoding with Handbrake

The Top Transcoding Apps for Watching Content on Consoles

Schedule Bittorrent Downloads and Pre-Load Steam Games

Whether you use FTP or Bittorrent to transfer files or play games delivered via Steam, you're pushing a lot of information through your home network to the Internet (and vice-versa). Here's how you can take advantage of away from your PC time to handle heavy bit-pushing.

If you use file transfer protocol (FTP) to shuffle files around, you know there are plenty of freeware versions to choose from. Unfortunately, just about all of those that include a scheduler feature will cost you a few bucks. One that won't cost you anything is WinSCP. Use its scripting feature to schedule file transfers. For a low-cost FTP program that doesn't require scripting to schedule transfers, consider ProSoft FTP Scheduler Standard Edition (about $25, 15 day trial).

Want to schedule Bittorrent transfers? Check out the Scheduler feature built into uTorrent. Scheduler allows you to adjust transfer speeds, go idle, or upload only at the times you select. For a tutorial, see page 7 of our own Paul Lilly's 20 Essential Tricks and Skills Every BitTorrent User Should Know. Be sure to see the comments for tips on using Dropbox and PeerBlock to improve uTorrent performance.

While Steam doesn't provide a way to schedule your downloads, you can pause and restart a game download whenever you want.


Run a Music Server

There's no need to drag your music collection between home and office. Give your iPod or Zune a rest and use our own Norm Chan's How To: Stream Your Music Library to Any Computer tutorial to bring your music to your office. The most time-consuming step (page 2) is importing your music into Netjukebox, so it's a perfect candidate for running it before you hit the hay or head to the office.

Compiling Code or Render Graphics

Compiling code and rendering graphics are among the most time-consuming tasks you can perform, so you shouldn't waste precious playtime by watching your computer munch program and video bits.

Start these processes before you clock out for the evening or as you start off to work. To make sure they run as quickly as possible, set your computer's power management for high performance and turn off other tasks that might interfere, such as Windows and application updates and other processes (such as the ones listed in this guide). If you're rendering graphics to an external drive or building a DVD or Blu-Ray disc, make sure your external drive is ready to roll and that you have a suitable blank disc in your drive.

Contribute to Distributed Computing

You can "give something back" to the world by devoting unused computer cycles to a cause you support. You can help make scientific discoveries or fight deadly diseases, and there's no shortage of causes looking for your help. For a list of projects, see these Maximum PC stories: Facebook and Intel want You to Donate Your Spare Cycles, Freeware Files: Five Free Distributed Computing Projects for your Idle PC!, and New Distributed Computing Initiative Wants to Create Artificial Life. Need more options? See Wikipedia's list of distributed computing projects and Distributed Computing Info's list of projects.

How to Manage It All When You're Away

Whether you're running apps that include built-in schedulers or need to start them yourself, you're going to want a way to log into your home PC from the office and keep an eye on what's going on. You could use commercial services like GotoMyPC, but if you're looking for a powerful freebie, check out the remote connection apps in our story The Ultimate Free Network Applications, Period. During your coffee breaks or lunch, you can stay in complete control of your PC at home.

Friday, February 12, 2010

10 Best Ways to Use Your PC While You're Sleeping or at Work

PIQOO | www.piqoo.blogspot.com


As much as we like to multitask, there's only so much a processor can handle at once. And some processes, like games, monopolize CPU clock cycles, making it inconvenient to run other processor-intensive utilities in the background. That's why we keep our home PC powered on while we're at sleep or at the office. Forget about energy savings--a powerful PC is meant to be utilized!

From scheduled FTP downloads to converting digital photos and more, here are the ten best ways to keep your PC busy so it won't miss you when you're gone. Downtime be damned!

Record TV Shows and Movies

Sure, you can record TV shows and movies while you use your PC, but what do you do if you have two or three programs all battling for your attention? If you can't catch your favorites on Hulu or Boxee, or if you don't have a TV tuner than can handle multiple programs, take advantage of repeat broadcasts of many programs; catch the game live, and record your favorite news programs or movies later.

If your favorite movie station insists on having a marathon of your favorite movie, you might as well record the 2AM showing and watch something else in prime time. If you use Windows Media Center, you can use either the program guide or the movies guide to record movies.

Patch Applications and Run Windows Update

Windows Update enables you to decide when to download and install updates for Windows and for Microsoft Office and other programs supported by Windows Update/Microsoft Update. The default setting is in the middle of the night, but if your PC is busy with other tasks then, consider a time like Wednesday morning after you head off to work (Wednesday morning is also a perfect time to catch Microsoft's Patch Tuesday updates). Need a reminder on how to adjust your settings? Here's how to do it with Windows XP and with Windows Vista (and Windows 7).

Scan Your PC with Anti-virus and Anti-malware Software

Although most current anti-virus and anti-malware programs can run while you use your computer for other tasks, you're still better off to check your machine for problems when you're not using it. Depending upon your favorite software, you might be able to schedule scans from within the software, or in some cases, you might need to run Windows Task Schedule/Scheduled Tasks service separately.

To find out if your favorite programs have built-in scheduling, you might need to switch to the program's advanced mode or advanced menus. For example, to schedule scans with Spybot S&D, you must switch to the Advanced mode and open the Settings tag to locate the scheduler. However, you might need to update to the paid versions of some scan programs to have access to scheduling functions.

Depending upon the speed of your anti-virus and anti-malware scanners, you might be able to schedule them on the same day or night. If possible, schedule the scanner's update process to run before the scan program itself.


Check Your Hard Drive for Errors with Chkdsk+Defrag

While malware and spyware can deep-six your computer's performance, so can problems with your hard disk's structure. Use the dynamic duo of chkdsk and defrag to check your hard disks for errors and defragment files to keep your storage in good shape.

Chkdsk can be run from the command prompt, and by using command-prompt switches when you schedule chkdsk to run, you have a great deal of control over how chkdsk works. If you want to repair disk errors on the C: (system) drive, you'll need to schedule chkdsk to run at startup.

You can shut down and restart Windows automatically using Task Scheduler, enabling you to run Chkdsk on the system drive at startup. You should run Chkdsk before you run Defrag on a given drive to assure that files are not being moved to corrupt portions of the disk.

In Windows 7, you can select multiple drives for defragmenting, which realigns small file fragments into larger contiguous blocks. This enables faster file reads and writes, especially on drives with frequent changes, such as the drive you use for temporary or swap files or drives with frequent modifications to data files.

Backup Your PC!

You can configure most commercial backup programs as well as Windows's own backup programs to run on a schedule. To make scheduled backups work properly, keep the following in mind:

  • Use an external hard disk or network location that's big enough for the backup (you won't be around to flip DVDs or removable media in and out of a backup drive). Use the default compression setting for the best combination of backup performance and backup size.
  • Use the backup scheduler included in the backup software.
  • Make sure your backup location is ready to receive the backup. With an external hard disk, make sure it's turned on and connected to your PC. With a network backup, make sure the remote drive or server is connected to the network – preferably, to a wired rather than a wireless connection.
  • If you have time, verify the backup.
  • For best performance, use gigabit Ethernet for network backups and eSATA or USB 3.0 for local drive backups.

To learn more about using Windows 7 backup, see our Windows 7 feature focus article.

Process Photos and Transcode Videos

If you’re a serious digital photographer, you already know that shooting in RAW mode provides much more control over exposure, white balance, and other factors than shooting in JPEG. However, when it comes to sharing or printing your photos, JPEG rules. Cut out the tedium of converting your photos manually by using automation features in your photo editing software.

With Photoshop Elements and Adobe Camera RAW, you can use Process Multiple Files to convert RAW files into virtually any other format supported by Photoshop Elements, apply quick fixes, resize images, rename files, and add labels.

With Adobe Photoshop CS4 and Adobe Camera RAW, you can use the Image Processor to automate the conversion process and run actions. If you still use Adobe Photoshop CS3 and Adobe Camera RAW, you can also use Image Processor.

Depending upon what type of video you're encoding or transcoding, there are many choices, all of which take time better spent when you're away from your PC. Here are some of our tutorials and product guides:

How To: Download, Save and Convert Flash Video to Play on your iPod or DVD Player

Ultimate Guide to Playing and Transcoding Downloaded Videos

The Last DVD and Blu-Ray Ripping Guide You'll Ever Need

The Power User's Guide to Video Encoding with Handbrake

The Top Transcoding Apps for Watching Content on Consoles

Schedule Bittorrent Downloads and Pre-Load Steam Games

Whether you use FTP or Bittorrent to transfer files or play games delivered via Steam, you're pushing a lot of information through your home network to the Internet (and vice-versa). Here's how you can take advantage of away from your PC time to handle heavy bit-pushing.

If you use file transfer protocol (FTP) to shuffle files around, you know there are plenty of freeware versions to choose from. Unfortunately, just about all of those that include a scheduler feature will cost you a few bucks. One that won't cost you anything is WinSCP. Use its scripting feature to schedule file transfers. For a low-cost FTP program that doesn't require scripting to schedule transfers, consider ProSoft FTP Scheduler Standard Edition (about $25, 15 day trial).

Want to schedule Bittorrent transfers? Check out the Scheduler feature built into uTorrent. Scheduler allows you to adjust transfer speeds, go idle, or upload only at the times you select. For a tutorial, see page 7 of our own Paul Lilly's 20 Essential Tricks and Skills Every BitTorrent User Should Know. Be sure to see the comments for tips on using Dropbox and PeerBlock to improve uTorrent performance.

While Steam doesn't provide a way to schedule your downloads, you can pause and restart a game download whenever you want.


Run a Music Server

There's no need to drag your music collection between home and office. Give your iPod or Zune a rest and use our own Norm Chan's How To: Stream Your Music Library to Any Computer tutorial to bring your music to your office. The most time-consuming step (page 2) is importing your music into Netjukebox, so it's a perfect candidate for running it before you hit the hay or head to the office.

Compiling Code or Render Graphics

Compiling code and rendering graphics are among the most time-consuming tasks you can perform, so you shouldn't waste precious playtime by watching your computer munch program and video bits.

Start these processes before you clock out for the evening or as you start off to work. To make sure they run as quickly as possible, set your computer's power management for high performance and turn off other tasks that might interfere, such as Windows and application updates and other processes (such as the ones listed in this guide). If you're rendering graphics to an external drive or building a DVD or Blu-Ray disc, make sure your external drive is ready to roll and that you have a suitable blank disc in your drive.

Contribute to Distributed Computing

You can "give something back" to the world by devoting unused computer cycles to a cause you support. You can help make scientific discoveries or fight deadly diseases, and there's no shortage of causes looking for your help. For a list of projects, see these Maximum PC stories: Facebook and Intel want You to Donate Your Spare Cycles, Freeware Files: Five Free Distributed Computing Projects for your Idle PC!, and New Distributed Computing Initiative Wants to Create Artificial Life. Need more options? See Wikipedia's list of distributed computing projects and Distributed Computing Info's list of projects.

How to Manage It All When You're Away

Whether you're running apps that include built-in schedulers or need to start them yourself, you're going to want a way to log into your home PC from the office and keep an eye on what's going on. You could use commercial services like GotoMyPC, but if you're looking for a powerful freebie, check out the remote connection apps in our story The Ultimate Free Network Applications, Period. During your coffee breaks or lunch, you can stay in complete control of your PC at home.

brings you the latest technology news, computer mods, computer news and the latest computer and notebook reviews.