Showing posts with label security. Show all posts
Showing posts with label security. Show all posts

Tuesday, November 13, 2012

Beyond antivirus software: Eclectic PC security tools for system-wide audits




 Welcome to a harsh reality: Relying on an ostensibly comprehensive antivirus suite just doesn't cut it in 2012.
Antivirus software is crucial for combating viruses, malware, and hackers, but simply installing an antivirus program is rarely enough. You should also use strong passwords; keep your system, applications, and browser plug-ins up-to-date; and make sure your firewall is doing its job by blocking all intrusions. Following these extra safeguards can reduce the chances of your PC becoming a Petri dish full of digital contagions.
Luckily, a number of tools and services can simplify all the extra security precautions that modern PCs require. They go above and beyond what's offered in antivirus suites, performing security audits of vulnerabilities that the big-name software packages miss. Here are five to check out.

Qualys Browser Check

An outdated browser or plug-in can serve as a security hole for hackers and malware authors to exploit, so you’ll want to keep your web software up-to-date. Qualys Browser Check is a free service that scans your Web browser to determine if you’re running outdated or insecure versions of some popular plug-ins or add-ons, including Adobe Reader, Adobe Flash, Java, and Windows Media Player.
You can run a quick scan from your browser in Windows, Mac, or Linux. You don't even have to download any software—Qualys runs completely within your browser. Supported browsers include Internet Explorer (IE), Mozilla Firefox, Google Chrome, Safari, Opera, and Camino. Once Qualys Browser Check completes its scan, it lists which plug-ins it scanned, and indicates whether you’re running insecure versions of any of your plug-ins, and if any updates are available. The scan also provides links to where you can download the newest plug-in version, so you don’t have to hunt around for it.
Sample results from a quick Qualys scan. Look at that: The Java plugin needs an update.
Alternatively, you can run a full scan after downloading and installing the Qualys BrowserCheck plug-in, which supports IE, Firefox, and Chrome on Windows—there's no Mac or Linux support for the full scan. This full scan can check all supported browsers you have installed, not just the browser you used to run the scan. And the full scan can also detect other system vulnerabilities as well, such as no automatic Windows Updates or Windows Firewall running, or out-of-date or disabled antivirus software.
Sample results from a full scan in Chrome after downloading the plug-in.
Once Qualys Browser Check finishes doing its thing, you’ll see a list of scanned plug-ins for your current browser, and icons to view the results for each of your other browsers. And if you choose to do system checks, you'll see a tab showing its results as well.

Secunia Personal Software Inspector (PSI)

Secunia Personal Software Inspector (PSI) is a free program that scans your PC for security vulnerabilities, like missing updates that hackers and malware authors can exploit to infect or hack into your PC. If PSI finds a vulnerability, it will try to automatically download and install any relevant updates. Otherwise, it helps you manually fix the issue.
After you download and install Secunia PSI, it will scan your system and notify you via its system tray icon if other programs require a manual update. You can open the program to find your Secunia System Score, a list of any programs that need to be updated, and a list of any software that it found to be up-to-date.
If your Secunia System Score is below 100 percent, you’ll find icons for the vulnerable programs, which you can click on to resolve the issue.

Password Security Scanner

Password Security Scanner is a free utility that scans for passwords stored by Windows applications and Web browsers, and tells you how strong they are. This gives you a chance to identify weak passwords, and change them to something more secure. Although you can’t see the actual passwords, you can see the username and which site or service they belong to.
The Password Security Scanner runs on Windows, and it will scan passwords stored by Internet Explorer, Mozilla Firefox, Microsoft Outlook, Windows Live Mail, and MSN/Windows Messenger, as well as your dial-up and VPN passwords.
Sample list of passwords and details about their strength.
After you download and install the utility, it will automatically scan and display additional details about your passwords, including their length, the types of characters used, and overall password strength. If you need help building better passwords, have a look at Alex Wawro’s primer on the topic.

ShieldsUp

ShieldsUp is a free, Web-based port scanner that tests your Internet connection for possible security holes, such as incorrect firewall settings. Although the testing regimen and reporting  might be a bit over the head of average computer users, the ShieldsUP site provides a wealth of background information about firewalls and port scanning.
ShieldsUp lets you scan a few different port ranges, including File Sharing ports (to make sure you’re not offering direct access to your files) and Common Ports (to check the most commonly used ones). It also lets you check all ports via the All Service Ports scan option. In addition, you can tell it to scan a specific port or range of ports. Additionally, you can evaluate your web browser headers for privacy and tracking issues, and test to see if your PC is susceptible to spam via the Windows Messenger Service, a messaging system built into Windows.
The results for the File Sharing tests are presented via a text description.
The results for the All Services tests are presented in graphical form.
If results show open ports, you can investigate the firewall settings of your router or PC and try to close or secure them.

Belarc Advisor

Belarc Advisor is free for personal use, and scans your PC’s hardware, network connections, software, antivirus status, Windows Updates, and Windows security policies for insecure settings and other security vulnerabilities. It generates a report in HTML that you can view in your browser. This report provides details on the scanned items and any detected issues, along with links on how to fix them, but it doesn’t automatically fix them for you. Also, the information it reveals is geared more for techies and IT professionals than average home users.
Sample of the HTML report created by Belarc Advisor.
In the beginning of the report, the service shows your overall security status via three scores: Security Benchmark Score, Virus Protection, and Microsoft Security Updates. Click on any of these to see more details.
By scrolling through the report, you’ll discover details on your hardware specs, user accounts, peripherals, and networking. You’ll also find a list of installed software versions, licenses, usage, and a report on missing or insecure Windows Hotfixes.

11/13/2012 10:06 AM PST
Thanks for this article. I will definitely be checking out some of these programs.
I would like to add some other security programs that I Believe every computer should have. They are all free and have different purposes.
1. Avast Antivirus - It's free and not only has a high rate of detecting and removing malware on a computer, but blocks a lot of it from getting on through the real time scans. ( I highly recommend running a full system scan nightly or weekly)
2. Malwarebytes Antimalware -It's free and should be installed on a PC in case something gets on your computer, you can scan right away and get it taken care of. It finds lot's of different malware that isn't found using other programs. (I recommend updating and running monthly)
3. SuperAntiSpyware - It's free and the same reason as above. It sometimes finds things that Malwarebytes misses.
4. CCleaner - It's free and gets rid of temp files that take up disk space, has a registry cleaner, as well as a uninstall and startup lists and system restore. It can also erase files, folders or disk space securely through the 35 pass deletion. ( I recommend scanning weekly or monthly)
5. Comodo Firewall - It's free. I recently came across this and it seems pretty good.

Monday, June 4, 2012

How To Anonymise Your BitTorrent Traffic With BTGuard

If you’re using BitTorrent without taking special measures to hide your activity, it may be just a matter of time before your ISP throttles your connection, sends you an ominous letter, or you find yourself the target of a file-sharing lawsuit. Here’s how to set up a simple proxy to keep your torrenting safe and anonymous.We’ve talked about how to boost your BitTorrent privacy before, but those measures aren’t quite enough anymore to keep you anonymous, because copyright holders are getting more vigilant at tracking down people who share their content. Heck, you don’t even need to be doing anything illegal, either. Maybe you just want to keep Big Brother out of your business and stop your ISP throttling your connection. Either way, if you really want to keep your activity private, your best bet involves routing your BitTorrent connection through an external service. BTGuard is a BT-focused proxy server and encryption service, and it’s my service of choice. Below, I’ll explain what it does, how it works, and how to set it up to privatise and anonymous your BT traffic.

How BTGuard Works

When you download or seed a torrent, you’re connecting to a bunch of other people, called a swarm, all of whom — in order to share files — can see your computer’s IP address. That’s all very handy when you’re sharing files with other netizens, but file sharers such as yourself aren’t necessarily the only people paying attention. Piracy monitoring groups (often paid for by the entertainment industry either before or after they find violators) also join BitTorrent swarms, but instead of sharing files, they’re logging the IP addresses of other people in the swarm — including you — so that they can notify your ISP of your doings. A proxy (like BTGuard) funnels your internet traffic — in this case, just your BitTorrent traffic — through another server, so that the BitTorrent swarm will show an IP address from a server that can’t be traced back to you instead of the address that points to your house. That way, those anti-piracy groups can’t contact your ISP, and your ISP has no cause to send you a harrowing letter.
But wait, can’t the piracy groups then go to the anonymiser service (BTGuard) and requisition their logs to figure out that you’re the one downloading the new Harry Potter? Theoretically, yes, but the reason why we chose BTGuard is because they don’t keep logs, so there’s no paper trail of activity leading back to you. All the piracy monitors see is BTGuard sharing a file, and all your ISP sees is you connecting to BTGuard — but not what data you’re downloading, because it’s encrypted.
If you subscribe to an ISP that throttles BitTorrent traffic and aren’t using an anonymiser service, you have an additional problem. Your ISP can still see what you’re doing, and if they detect that you’re using BitTorrent — even if you’re using it for perfectly legal purposes — they may throttle your connection so you get unbearably slow speeds. When you encrypt your BitTorrent traffic, your ISP can’t see what you’re using your connection for. They’ll see that you’re downloading lots of information, but they won’t be able to see that it’s BitTorrent traffic, and thus won’t throttle your connection. You still have to be careful of going over your ISP’s bandwidth cap, however, if that exists.
BTGuard offers you both a proxy (to combat spying) and encryption (to combat throttling) — though many torrent clients have encryption built-in as well.
Sounds great, right? Now the caveats: First, BTGuard isn’t free. At $US7/month (as little as $US5 if you pay for a year in advance), it isn’t very expensive, and we think it’s well worth it if you want to torrent anonymously. A lawsuit settlement, if it comes to that, will cost you at least a couple thousand dollars, which equals a couple of decades of BTGuard subscriptions, so keep that in mind, too. The other potential downside is that piping your downloads through another service may decrease your upload and download speeds. How much depends on what torrent you’re downloading, who from and a lot of other factors, but just know that it’s a possibility.
Lastly, proxies aren’t supported by every client, which means you’ll have to use one with more advanced features. uTorrent (for Windows) and Vuze (for Windows, Mac and Linux) both support proxies, but sadly Mac and Linux favourite Transmission does not. (If you’re absolutely stuck with a client that doesn’t support proxies, check the end of this article for some alternative solutions to the anonymity problem.)

How to Set Up BTGuard

BTGuard has a one-click install process, but we’re going to show you how to do it the manual way, since it works in any BitTorrent client that supports SOCKS5 Proxy — not just the ones supported by BTGuard’s installer. It’ll also give you a better sense of what exactly BTGuard does, so if you run into problems, you’ll have a better idea of how to fix it.

Step One: Sign Up for BTGuard

First, sign up for an account over at BTGuard.com. It’ll just take a minute, and then you can get to configuring your client. Their BitTorrent proxy service costs $US6.95 a month, but you can get discounts by buying multiple months at a time (up to a year’s service for $US59.95). Once you’re done, you should receive an email telling you that BTGuard is ready to go.

Step Two: Configure Your Client

Next, open up your torrent client of choice and find the proxy settings within its preferences. In uTorrent, for example, this is under Preferences > Connection. Your client may have them in a different place (Google around to find out where), but no matter your client, your settings should look like this:
  • Proxy Type: Socks v5
  • Proxy Host: proxy.btguard.com
  • Proxy Port: 1025
  • Username: Your BTGuard username
  • Password: Your BTGuard password
You’ll also want to make sure you’re using the proxy for hostname or tracker lookups as well as peer-to-peer connections, so check all boxes that say anything like that. You’ll also want to disable connections or features that could compromise the proxy, so check all the boxes under uTorrent’s “Proxy Privacy” section, or anything similar that your client may have. Hit Apply, exit the preferences and restart your client. Your proxy should now be active.

Step Three: See If It’s Working

To ensure that it’s working, head over to CheckMyTorrentIP.com. This site can tell you what your IP address is, and compare it to the IP address of your torrent client, which will let you know whether your proxy is working correctly. To test it, hit the “Generate Torrent” button, and open the resulting torrent in your client. Then, go back to your browser and hit the Refresh button under the “Check IP” tab. If it’s the same as your browser IP — which you’ll see next to the Refresh button — then your proxy isn’t working, and you’ll want to double-check all of the above settings. If it shows a different IP address (often from another country like Germany or Canada), then BTGuard is successfully tunnelling all your traffic for you.

Step Four (Optional): Enable Encryption

If you want extra security (or if you’re trying to protect your connection from being throttled), you’ll also want to encrypt all that traffic. Many clients have this feature built-in. In uTorrent, for example, just head to Preferences > BitTorrent and look for the “Protocol Encryption” section. Change your outgoing connection to Forced encryption, and uncheck the “Allow incoming legacy connections” box. From there, you should be good — your ISP shouldn’t throttle your connection after this is enabled.
If your client doesn’t support encryption, or you want a more powerful encryption behind your torrenting, BTGuard offers an encryption service as well. Just head to their Encryption page, download the software, and install it to C:\BTGUARD (this is very important; don’t change the installation directory). Then, start the BTGuard Encryption program (accessible from the Start menu), and open up your BitTorrent client. Change your proxy server from proxy.btguard.com to 127.0.0.1, restart your client, and you’re golden. Again, this isn’t necessary if your client already supports encryption, but it is an extra layer of protection if you really want to keep everything private.

Other Alternatives

Lastly, while this is our preferred BitTorrent privacy solution, it won’t work for everyone. For example, if you’re stuck with a specific client that doesn’t support proxies, you’ll need something different. Here are a few of your other options:
A full VPN: If your client doesn’t support proxies, you’ll want a full VPN service that anonymises all your traffic, not just BitTorrent. You can use one of these great VPN services to protect your traffic, but it’s likely you could still experience speed decreases — though this time, they’ll affect all your browsing. If you only use it when torrenting, that’s fine, but this isn’t good for those that want to seed those torrents afterwards. You should also make sure that the VPN service you choose doesn’t keep logs of your activity, because if they do, that defeats the purpose of using them at all.
A Seedbox: If you want to contribute back to the community (or if you’re on a private tracker that requires you seed to a certain ratio), you’ll want to try a seedbox. A seedbox is essentially a dedicated server in another country that does all the torrenting for you, using their very high speed connection. Once a torrent is downloaded, you can then connect to your seedbox via FTP or something similar and download your files from them that way. It’s more expensive than a simple proxy (ranging from entry-level boxes at $US10 or $US20 a month to fast boxes with more storage at $US50 or even $US100 a month), but it allows you to keep seeding at very high speeds. There are a lot of good seedbox providers. Bytesized and ExtremeSeed come highly recommended, but a bit of searching can probably find you a lot of different options. Shop around and see which one’s best for you.
Usenet: Your last alternative is to try a new file-sharing service entirely, like Usenet. It offers encrypted connections and doesn’t connect to peers, so others can’t track what you’re doing. It doesn’t always have the selection that BitTorrent has (depending on what you’re downloading), but it offers a ton of other advantages, most notably higher speeds and more privacy. Check out our guide to getting started with Usenet to see if it’s right for you.
BitTorrent isn’t the safe place it once was, and if you’re going to use it to share and download files, we highly recommend getting some sort of protection from the services above so you can avoid DCMA notices and throttled speeds.Got any other tips for keeping your file sharing on the down low? Share them with us in the comments.

http://www.lifehacker.com.au/2011/11/how-to-anonymise-your-bittorrent-traffic-with-btguard/

Sunday, April 29, 2012

Free Antivirus You Can Trust

security
Illustration by I Love Dust
You want security software that’s as close to perfect as possible. After all, if just a single piece of malware slips through your defenses, it can wreak havoc on your PC. The question is, how close to perfect is free antivirus software? According to our testing, some free antivirus programs do an admirable job of detecting, blocking, and removing malware, but others don’t have what it takes to protect you.
For this roundup, we once again teamed up with AV-Test, a well-respected antivirus-software testing lab, to put nine free antivirus programs through their paces. Applying a rigorous battery of tests, AV-Test evaluated all of the packages to see how well each one can withstand both brand-new malware and older baddies, and how well each can clean up a malware mess. In addition, AV-Test performed a number of system-speed tests to determine how much each program will drag down a PC’s performance. Finally, after installing the programs, we evaluated how easy each one is to use.

What Do You Get for Free?

security
Illustration by I Love Dust
Most free antivirus programs are pretty basic: You get the ability to scan your PC for malware when you want to, and most of the products will also continually monitor your PC for malware as they run in the background. But most of them don’t include a firewall or extra features like parental controls. (One exception: Comodo’s free Internet Security Premium does bundle in a firewall.) The biggest drawback to going free: Your support options are generally limited. Most free programs offer a message board where users can discuss problems, but these boards don’t provide professional support. You can find exceptions, however. Comodo, for example, includes a version of its GeekBuddy software, which lets you work with a Comodo technician to fix issues you encounter.

Which Package Is for You?

Security
Illustration by I Love Dust
AVG Anti-Virus Free Edition 2012 came out on top in our testing. It’s fast, it blocks brand-new malware ef­­fectively, and it cleans up infected PCs efficiently. Avast Free Antivirus 7 and Panda Cloud Antivirus 1.5 round out the top three. If you’re looking for something that can serve as a supplement to your current antivirus software, we review three possibilities; of those three, PC Tools Threatfire is a good option: It was the best all-around at stopping brand-new malware attacks in our testing. Threatfire relies solely on what’s called behavioral analysis—how programs behave on your PC—to identify malware, whereas most traditional antivirus apps use either malware definition files or a combination of technologies to stop threats. Since Threatfire is primarily intended to stop malware before the invader causes a problem, you should be sure to install it on a clean PC.

Read how we rate antivirus software. Click on the links below to download your choice of packages, and click on the screens, including the chart thumbnail at right, to enlarge them. (The chart shows how well the seven packages reviewed performed in our tests.)
The reviews here appear in order of scoring.

AVG Anti-Virus Free Edition

AVG Anti-Virus Free is the all-around winner in our survey of free antivirus products, having a perfect showing at disabling malware.
Our top pick, AVG Anti-Virus Free Edition 2012, performed well in virtually all of the tests we ran. In our real-world malware detection tests, which evaluate how well an antivirus package will block brand-new threats, AVG’s freebie blocked 85.7 percent of the samples, tying for the best result among the programs we tested. It detected 98.7 percent of the more than 129,000 samples of malware from the past four months in our malware “zoo” test. That’s a good score, although a bit short of the best results we’ve seen.
AVG was at the top of its class in disabling active malware infections: On our test PC, it de­­tected and disabled all malicious software, and removed all traces of malware two-thirds of the time.
AVG also scans a PC relatively quickly. When we directed it to check 4.5GB of data, it sped through the job in 1 minute, 35 seconds, the third-fastest time in this test and only 4 seconds slower than the fastest. Its on-access scanner—which runs when you open or save a file—took 4 minutes, 55 seconds to go through the same amount of data, about average for the programs we looked at.
I like AVG’s main interface, though its advanced settings could intimidate some users. Apart from that caveat, if you’re looking for solid, fast PC protection, look no further than AVG.

Avast Free Antivirus

Avast's Free Antivirus 7 mostly excelled in protecting against malware.
Avast’s freebie finished second in this year’s roundup. Avast Free Antivirus 7 mostly excelled in protecting against malware, it has a versatile interface, and it sped through our battery of malware tests. Avast’s defenses were weakest at blocking new real-world threats: It caught just 78.6 percent of them—not outstanding, but slightly above average. Avast did far better at stopping well-known malware, detecting 99.1 percent of samples in our zoo test—a very good showing. This package cleans up malware infections effectively, as well. It de­­tected all the malware residing on our test PC, and disarmed the invaders 93 percent of the time, tying for second-best in this test. The utility also removed all traces of infections two-thirds of the time.
The Avast offering won’t slow your PC down much. It completed the on-demand scan test in 1 minute, 34 seconds, for second-best in the group; and it finished the on-access test in 4 minutes, 16 seconds, good enough for third-best.
Avast’s interface has a lot going on—advanced users will find many settings to toggle. Despite this complexity, it is nevertheless friendly enough that it shouldn’t scare away less-geeky users.

Panda Cloud Antivirus

If you think setting up antivirus software should be as simple as possible, Panda Cloud Antivirus 1.5 is for you.
If you think setting up antivirus software should be as simple as possible, Panda Cloud Antivirus 1.5 is for you. Panda stops malware well, and its extremely easy-to-use interface is great for those people who don’t want to tweak all sorts of settings. Panda blocked 85.7 percent of new malware, the same score as AVG. And the Panda freebie outperformed AVG in the malware zoo test by detecting 99.94 percent of the samples.
Panda did only a so-so job at cleaning up infections. It detected all active infections on our test system, and disabled 87 percent of them, about average on this test. It completely removed infections 60 percent of the time, also about average.
Panda’s program was far from speedy in some tests. It slowed the copying of files over the network considerably, and its scan speeds were among the slowest we saw: It completed the on-demand test in 6 minutes, 10 seconds, and in the on-access scan test it took 7 minutes, 25 seconds.
If you value simplicity over speed, however, Panda Cloud Antivirus, given its success in detecting malware, makes a good choice.

Avira Free Antivirus

Avira Free Antivirus has an overview panel that, while better than in earlier versions, can still be overly technical.
Avira Free Antivirus 2012 is fast and is unlikely to scare you with warnings about legitimate files, but it is also worse than average at detecting malware, and its interface is overly complicated. Avira blocked 70.4 percent of the samples of new viruses in our real-world test, slightly worse than average for the tools we tested. It also lags in disinfection: Though it found all active malware infections on our test system, it disabled only 80 percent of them, another worse-than-average showing.
I’m not a big fan of Avira’s interface. Its overview panel is better than in previous versions, but the interface remains too technical in places. Also, I noticed that Avira occasionally displays ads.
Avira’s results weren’t all bad, however. It detected 99.7 percent of known malware samples in our zoo test, and it was one of only two free antivirus programs we tested that didn’t mistakenly label legitimate files as possible malware. Its on-demand scan time of 1 minute, 31 seconds was the best in our testing, and its on-access scan time of 4 minutes, 54 seconds was respectable.
Using Avira will by no means leave your PC completely open to malware, but you should consider the higher-scoring AVG, Avast, or Panda first.


Microsoft Security Essentials

Microsoft Security Essentials 2.1, our fifth-place finisher, is something of a mixed bag.
Microsoft Security Essentials 2.1, our fifth-place finisher, is something of a mixed bag. I like its interface, and it is reasonably good at cleaning up infections, but it falters at stopping new malware, and it plods through its chores. Security Essentials’ user interface is particularly straightforward—perfect if you don’t want to waste time messing around with your antivirus software.
Microsoft’s program cleans up malware infections quite effectively: In our tests, it identified all active infections on our machine and disabled over 93 percent of the malware. It removed all traces of malware 80 percent of the time—better than any of its competitors in this roundup. In addition, it was one of the two free antivirus applications that didn’t mistake a single safe file for malware.
While Security Essentials excels at removing malware from a PC, it doesn’t do as well at keeping dangerous code off a computer in the first place. It fully blocked 71.4 percent of new malware in our real-world tests, slightly worse than average. In our zoo test, it detected 97.0 percent of known malware samples. With that result, it lags the competition—some packages detected over 99.9 percent of samples.
Security Essentials didn’t unduly slow overall system performance, but it performed a good deal worse than average in file-copy tests and app-installation tests. In scan speeds it also fell behind the pack: Its on-demand scanner completed our virtual obstacle course in a worse-than-average 3 minutes, 56 seconds. The on-access scanner was poky too, clocking in at 6 minutes, 43 seconds.
While Microsoft Security Essentials has some good qualities, you would be better served by looking at some other options.

PC Tools AntiVirus Free

PC Tools AntiVirus Free has some good points—and an annoying habit of promoting the company’s paid software products.
PC Tools AntiVirus Free 2012 has its strong points, but it was the worst of the field when it came to blocking new malware. In our real-world blocking tests, PC Tools managed to stop only 57.1 percent of malware samples, placing it well behind its competition in this roundup. On the plus side, PC Tools detected 99.96 percent of known malware from the past four months. It is also one of the best free antivirus programs at disinfecting a PC. It detected all infections on our test system, and it successfully disabled 93 percent of the infections. It removed all traces of malware in 73 percent of the cases.
PC Tools AntiVirus Free didn’t slow overall system performance much. Its results were mixed when we tested scan speeds, though: Its on-demand scanner completed our tests in a sluggish 4 minutes, 51 seconds. On the other hand, the on-access scanner finished in 2 minutes, 50 seconds, the second-best time of all the products we tested.
PC Tools is easy to use for the most part, and its screens are laid out nicely. One thing I found an­­noying, however, was that it pushed the paid version of the company’s software at every turn.

Comodo Internet Security Premium

Comodo Internet Security is the only product in this group that comes with a firewall.
Comodo Internet Security Premium 5.9 has an accessible interface, and it comes with a firewall (it’s the only freebie we tested that has one), but in both malware blocking and cleanup, it ranks be­­hind other free antivirus products we tested. (Note: This link goes to the download for Comodo Internet Security 5.10 in PCWorld's Downloads library.) Comodo’s performance in our real-world tests was acceptable: It blocked 78.6 percent of new malware, slightly above average compared with other free antivirus programs. It partly blocked an additional 21.4 percent of attacks. But Comodo protected poorly against well-known malware. It detected 98.2 percent of zoo samples—though that may sound like a good score, only two products we tested performed worse.
Malware cleanup may be Comodo’s Achilles’ heel: It detected all infections, but it was successful in disabling malware only 80 percent of the time—quite low compared with the top performers. It left behind more malware remnants than any other product, too; it was successful in removing all traces of malware only a third of the time.
For the most part, Comodo had a light impact on PC performance, but it significantly slowed copying of files across the network. Comodo also took its time in scanning files for threats: Its on-demand scanner took 4 minutes, 31 seconds—the third-slowest result. Meanwhile, the on-access scanner required a staggering 13 minutes, 58 seconds to run, nearly twice as long as the next-slowest product. While its included firewall makes Comodo Internet Security Premium an attractive option, we’d suggest giving other freebies a look first.

Three Supplements

Here are three products to consider as supplements to your main antivirus software.
PC Tools Threatfire
PC Tools Threatfire won’t replace your existing antivirus software, since it won’t effectively clean up malware that has already infected your computer. What it will do, however, is excel at preventing brand-new threats from infiltrating your system.
Because of the way Threatfire works, we were unable to test it against our malware zoo of known threats. Threatfire doesn’t use traditional signature files; instead, it relies solely on behavioral analysis—that is, it identifies malware based on how the invader acts on your PC.
That technology should make Threatfire fantastic at ferreting out new malware, and our tests bear that out. The tool produced outstanding results when blocking malware in our real-world tests: It fully blocked 92.9 percent of malware, and partially blocked the remaining 7.1 percent, the best showing of any free antivirus app we looked at this year.
As mentioned, Threatfire falters at disinfection: It detected and disabled only about half of the infections on our test PC. Because of this, it’s best to install Threatfire on a clean, malware-free system.
Threatfire is designed to work side by side with most antivirus products, so if you just bought a new PC, installing Threatfire is a good addition to your setup routine.

Malwarebytes’ Antimalware
Malwarebytes' Antimalware is a tool for detecting and removing brand-new 'zero-day' malware.
Malwarebytes’ Antimalware is another supplemental free product that can help bolster your existing security software. The makers of Malwarebytes’ Antimalware pitch it as a tool for detecting and removing brand-new “zero-day” malware, and it uses a number of different technologies to accomplish this task. The software did perform decently compared with other freebies when it came to stopping new malware. In our real-world tests, Malwarebytes fully blocked 78.6 percent of samples—slightly better than average—and partially blocked an additional 14.3 percent. It’s also reasonably fast: It had the lightest overall impact on system performance of any free antivirus product we tested.
Malwarebytes isn’t something you’ll want to use as your primary antivirus software, though, as it isn’t great at stopping known malware: It detected a scant 57.1 percent of known malware samples collected from the past four months—far and away the worst result we saw from any of the freebies tested.
The software has a fairly no-frills interface, but it’s straightforward. One clever feature is Chameleon, which lets the program run even when a particularly evil piece of malware attempts to block it.
Malwarebytes’ makers don’t see its product as a first line of antivirus de­­fense, and frankly, neither should you. But it’s something to consider adding to your security toolbox.
Hands On With Ad-Aware 10
Ad-Aware recently released version 10 of its free antimalware software. The program came in too late for our full suite of testing, but we had a look at its slick new user interface.
The work Lavasoft put into the UI shows right from the installation phase. Ad-Aware uses its own custom installer, which downloads the most recent definitions file as part of the installation process, so you don’t have to update Ad-Aware immediately after installing it. That’s slick, but what isn’t is that you still have to restart your system before Ad-Aware can start working.
As part of the installation process, Ad-Aware suggests installing its browser toolbar, and switching your default homepage and search engine to Blekko. These are enabled by default, but you can opt out of them if you wish.
The home screen feels like the dashboard of a powerful application, but it will not confuse even a novice user. The Scan Now button can’t be missed, nor can the current system status. More technically inclined users will easily be able to view scan reports, quarantined files, protection settings, and the status of definition updates.
It is very easy to switch features on and off, although there is no real reason to toggle protection off. The only toggle button I see users routinely using is the one for Gaming Mode, newly available in the free version. This is a silent mode in which Ad-Aware doesn’t show pop-ups. Another significant new feature in the free version is real-time protection, or scans of your computer as you work.
All in all, Ad-Aware 10 is a promising product, and it feels polished and modern. As for its effectiveness, only lab testing can render a verdict.
(Ad-Aware 10 reviewed by Erez Zukerman)



 http://www.pcworld.com/article/254121/free_antivirus_you_can_trust.html
Which free antivirus program is best? Click on the chart.

Saturday, January 20, 2007

Update your Adobe software - yes you have it!

Hi folks.
There is a serious security issue with older versions of Adobe Reader
software.
This is the program you use to view .pdf files. You probably have it even
if you weren't aware of it.
I recommend you download the latest version of adobe reader (version 8) to
avoid any problems

Download from here >> http://www.adobe.com/products/acrobat/readstep2.html

It's a fairly large download - about 21 MB

See below for more details on the security issue

Adobe Patches Reader Vulnerability

This is a first step toward fixing what security experts are calling one of
the worst security problems they've ever seen.
Ellen Messmer, Network World
Wednesday, January 10, 2007 11:00 AM PST

Adobe late Tuesday released the first set of security patches to address
the cross-site scripting vulnerability disclosed by European researchers
late last year. The flaw allows Acrobat Reader 7.0.8 and earlier versions
to be exploited by hackers.
Left unpatched, the vulnerable versions of Adobe's Reader, Acrobat
Standard, Acrobat Professional, and Acrobat 3D let an attacker easily
include JavaScript code in a browser session so that when a user clicks on
a malicious link to a PDF on the Web, the attack code is activated. There
is no vulnerability associated with PDF itself.

Update Now!
The latest version of Acrobat, version 8, released in December, isn't
vulnerable to the cross-site scripting attack. But because researchers
Stefano Di Paola and Giorgio Fedon drew attention to the flaw when they
presented a paper at a Berlin conference in late December, Adobe has been
working to address the problem.
"Adobe strongly urges Adobe Reader users to update to the latest version,
Reader 8. Adobe Reader 7 users who wish to stay with their current version
can follow the instructions outlined in the bulletin," Adobe advised in a
post last night. Adobe also issued recommendations for a server-side
workaround for Web site operators.

Worst Security Problem Ever
Adobe labels the cross-site scripting flaw critical, and many security
experts say it's one of the worst security problems they've ever seen given
that Adobe Reader is so widely used for viewing PDF files.
"It's the prevalence of it," notes Amol Sarwate, manager of vulnerability
research at security services firm Qualys. "There's an Adobe Reader
installed on almost every desktop."
"This is so very dangerous because it exploits a random PDF on the Web,"
says Billy Hoffman, a leading researcher at vulnerability-assessment firm
SPI Dynamics. "I send someone, the victim, a link to a legitimate Web site.
The vulnerability allows you to put JavaScript in it, executing in the
client's browser. Then, I can simulate the victim at that time. You're
piggybacking perfectly legitimate commands on top of a PDF."
"This is the biggest issue in security I've ever seen," says Danny Allan,
director of strategic research at Web application security firm Watchfire.
"It's extremely easy for someone to do this. There's nothing difficult
here."

More Patches Coming Soon
Spam-filtering appliance vendor Barracuda says it has updated its equipment
to filter out spam with a URL link containing JavaScript for a PDF.
"There's no reason a URL to a PDF file should contain a JavaScript for a
PDF," says Steve Pao, vice president of product development at Barracuda.
An Adobe spokesperson says Adobe expects to soon post additional security
patches for the cross-site scripting vulnerability for Adobe Reader 6
users.

http://www.pcworld.com/article/id,128488-c,browsersecurity/article.html

Friday, January 19, 2007

Safer Web Surfing - part 2

A new version of the Firefox web browser is about to be
released - version 2.0. (tomorrow actually)
It looks like it will have security similar to that
provided by the Mcafee SiteAdvisor add-on that I mentioned
in the previous post.
So if you update Firefox to version 2.0, you shouldn't
have to worry about using SiteAdvisor as well.

Safer Web Surfing - McAfee SiteAdvisor

Mcafee have a free web browser add-on that alerts you if a
web site is associated with spam or spyware.
There is a Firefox version & a Internet Explorer (IE) version.
http://www.siteadvisor.com/download/

Security Add-On for Firefox
Our Rating: (Excellent)
McAfee SiteAdvisor is a security add-on for your Firefox browser that
helps you identify websites that are linked to spyware, adware, spam,
viruses, browser-based attacks, phishing, or online fraud.
The SiteAdvisor service is based on a huge database with detailed test
results for more than 100,000 pieces of software and covers more than 90%
of the world`s Web traffic.
The program integrates with search engine results from popular search
engines and also adds an icon to the browser toolbar that indicates
whether a site is safe to use, or should be used with caution.
If SiteAdvisor has negative information for a site, you can review a
very detailed report that shows any spam received from that site,
harmful downloads, and association with other sites.
An excellent browser add-on, that provides an in-depth site analysis
that is based on actual test results,
rather than assumptions.

You can download it from here >>
http://www.snapfiles.com/get/siteadvisorfx.html
The link above is for FireFox browser (which I recommend using)
There is also a version if you use Internet Explorer browser >>
http://www.snapfiles.com/get/siteadvisor.html