How to update Nod32 antivirus-offline

There are still many users who don't update their security software's regularly due to the reason that they don’t have an internet connection. To protect your PC regularly you must update the antivirus regularly.

Twitter attacked by malware and worms

Twitter kept security experts busy this weekend, with a spat of malware attacks and malicious worms.

The malware has infiltrated the Trending Topics section of the website, with security experts warning that Twitterbest and Zasaden are rogue links.Click on these and you will be taken to a site that asks you to download a fake Flash Player update. Once you have done this it will explain that you have a virus and need to install premium anti-virus software.

Email worm

This is not the only security glitch. The other comes in the form of fake Twitter invitations in your inbox.

Click on these and you may be subject to a worm attack, which nicks all your contacts and sends out rogue emails to these people.

So, if you have any emails from Twitter with an 'invitation card' attachment, then don't click on them.

These certainly aren't the only security problems that Twitter has encountered, but the frequency of security problems the site is facing points to just how popular Twitter is getting.

10 easy ways to boost your online security

Many people think that installing anti-virus, firewall and anti-spyware software should inoculate them from all manner of threats.

The truth is, you need to be a bit more savvy than that.

Read on to find out 10 really easy ways to close the security holes that still remain on your PC.

And if you're called upon to clean the junk off a friend or relative's PC this Easter break, you might want to share this link with them to save you getting called back out again in a week.

1. Augment your anti-virus tool
Threatfire is designed to work alongside existing security products. Unlike traditional anti-virus tools, it doesn't rely on signatures to identify malware; instead, it monitors your PC for suspicious malware-like behaviour. The only time you'll hear from the program is when it's found something suspicious; otherwise it'll sit silently in the background.

2. Switch to plain text mail
HTML can be used to hide all sorts of unpleasant things in email. Set your mail program to view all messages as plain text by default - you should see an option for viewing individual messages as HTML when you trust the sender.

3. Don't click mail links
Never visit web sites by clicking links in your email unless you're 100 per cent sure the link is safe. This is especially true for emails purporting to come from financial institutions asking you to log in to verify your account details - 99.9% are scams (the other 0.1% are irresponsible).

4. Vet your email
Most anti-spam tools only process email that's been downloaded from your mail server - install PopTray and you can check and preview your mail while it's still on the server, deleting unwanted and suspicious messages without exposing them to your mail program.

5. Switch web browser
Upgrade to the latest version of Internet Explorer or switch to a browser that doesn't support potentially malicious Active-X controls such as Firefox, Opera or Google Chrome. Check the browser's privacy and security settings are set to Medium High or greater.

6. Check web sites before you visit
Install the free Web of Trust plug-in for Internet Explorer or Firefox (Chrome will be supported once the browser supports third-party add-ons), and you'll be in a better position to avoid unsafe web sites thanks to its traffic-light system for both sites and search engine results.

7. Manage your passwords
A password manager such as KeePass enables you to securely and easily enter your passwords into any program. As you only need to remember one master password to use the program, there's no excuse to use the same password across all your online accounts (the program will even generate secure, random passwords for you).

8. Screen all downloads
Never open attachments or downloads directly - save the file to your hard drive, right-click it and run a quick scan with your security tool of choice prior to opening it. When downloading files, make sure you download from a reputable web site (typically the program's own home page or a respected download site) – the WOT plug-in will help here.

9. P2P basics
Peer-to-peer networks are a breeding ground for malicious software, particularly in content that's been copyrighted. If you can't live without P2P, pick a trusted provider and client (such as uTorrent). Be careful what you share, and scan all downloads prior to opening them.

10. Create a virtual sandbox
Sandboxie enables you to run any program in a protected and isolated space on your hard drive. Changes made are discarded when you close the sandbox, so you can surf the web and open mail attachments without fear of malware sneaking on to your PC.

How to Make Windows XP into Genuine

In this post i will show how to make your windows XP into Genuine without paying a single buck..!! Yes it is possible to make windows xp into Genuine without buying the original License. The secrets of make Genuine is now exposed.The secret is just to add a REGISTRY entry ok i know some of them they don't know what is REGISTRY ? even those who don't know Registry it is possible to use this trick. Just follow simple steps as show below.

1. Download the LICENSE.REG file.

2. Now just Double click the file, choose Yes when prompted.

3. Now its time to Validate(Activate) so just go to Genuine Microsoft Software and then click on “Validate Windows” .

Ok now your windows is Genuine Happy..

BitTorrent Terms

Torrent
A small metadata file which contains information about the data you want to download, not the data itself. It is downloaded from a web site (BitTorrent file extension is .torrent) by clicking on a download link. It can also be saved to your computer. This is useful if you want to be able to re-open the torrent later on without having to find the link again.

Peer
A peer is another computer on the internet that is sharing the file you wish to download. Typically a peer does not have the complete file, if it did it would be called a seed. Peers are also called leeches, to distinguish them from those who have completed their download and continue to leave their BitTorrent Client running and act as a seed.

Seed
A computer that has a complete copy of the specific torrent you are downloading . Once your client finishes downloading, it will remain open until you click the Finish button. This is known as seeding. You can also start a BitTorrent Client with a complete file, and once BitTorrent has checked the file it will connect and seed the file to others. It is good to continue seeding a file after you have finished downloading, to help others finish. Also, when a new torrent is posted to a tracker, someone must seed it in order for it to be available to others. The tracker doesn't know anything of the actual contents of a file, so it's important to follow through and seed a file if you upload the torrent to a tracker.

Reseed
When there are zero seeds for a given torrent (and not enough peers to have a distributed copy), all the peers will get stuck with an incomplete file, since no one in the swarm has the missing pieces. When this happens, someone with a complete file (a seed) must connect to the swarm so that those missing pieces can be transferred. This is called reseeding. Usually a request for a reseed comes with an implicit promise that the requester will leave his or her client open for some time period after finishing (to add longevity to the torrent).

distributed copies
In some versions of the client, you will see "Connected to x seeds; also seeing x.xxx distributed copies." A seed is a computer with the complete file. However, the swarm can collectively have a complete copy (or copies) of the file, even without seeds a complete distributed copy can be available if the sum total of the users have a complete copy among themselves. BitTorrent doesn't distribute in sequential order, so this is possible.

Swarm
The group of users that are collectively connected for a particular file. Example, if you start a BitTorrent Client and it tells you that you're connected to 5 peers and 1 seeds, then the swarm consists of you and those 6 other people.

Tracker
Server on the Internet that coordinates the action of BitTorrent Clients. Upon opening a torrent, you contact the tracker and receive a list of peers to connect to. Throughout the transfer, your computer will query the tracker, telling it how much you've downloaded and uploaded and how much before finishing. If a tracker is down and you try to open a torrent, you will be unable to connect. If a tracker goes down during a torrent (you have already connected at some point and are already talking to peers), you will be able to continue transferring with those peers, but no new peers will be able to contact you. Tracker errors are often temporary, leave the client open and continue trying.

Share rating
A ratio of your amount uploaded divided by your amount downloaded. The amounts used are for the current session only, not over the history of the file. If you achieve a share ratio of 1.0, that would mean you've uploaded as much as you've downloaded. The higher the number, the more you have contributed. If you see a share ratio of this means infinity, which will happen if you open a BitTorrent Client with a complete file (i.e., you seed the file.) In this case you download nothing since you have the full file, and so anything you send will cause the ratio to reach infinity. While share ratings are just displayed for your convenience, courtesy to others should cause you to keep this ratio as high as possible.

choked
When a connection is choked, it means that the transmitter isn't currently sending anything else on the link. A BitTorrent Client signals that it's choked to other clients for a number of reasons, the most common is that by default a client will only maintain --max_uploads active simultaneous uploads, the rest will be marked choked. A connection can also be choked for other reasons, for example a peer downloading from a seed will mark his connection as choked since the seed has no need to receive.

Optimistic unchoking
Periodically, the client shakes up the list of uploaders and tries sending on different connections that were previously choked, and choking the connections it was just using. You can observe this action every 10 or 20 seconds or so, by watching the "Advanced" panel of one of the experimental clients.

Interested
Term used in the protocol specification. refers to the state of a downloader with respect to a connection. A downloader is marked as interested if the other end of the link has any pieces that the client wants, otherwise the connection is marked as not interested.

Snubbed
If the client has not received anything after a certain period (default: 60 seconds), it marks a connection as snubbed, in that the peer on the other end has chosen not to send. See the definition of choked for reasons why an uploader might mark a connection as choked. The real function of keeping track of this variable is to improve download speeds. Occasionally the client will find itself in a state where even though it is connected to many peers, it is choked by all of them. The client uses the snubbed flag in an attempt to prevent this situation. It notes that a peer with whom it would like to trade pieces with has not sent anything in a while, and rather than leaving it up to the optimistic choking to eventually select that peer, it instead reserves one of its upload slots for sending to that peer.

First Look Of Google & Yahoo

Bing vs Google vs Yahoo

A couple of months ago, Microsoft conducted a research study where they found search engine branding had an impact on the perceived quality of results. Now, months later, Bing is launched and people are once again ranking the quality of search results. At first, there were direct side-by-side comparisons, but of course there’s no better challenge than a double-blind experiment.
Michael Kordahi, which I feel compelled to disclose is a Microsoft employee, has set up such an experiment, dubbed “BlindSearch” which you can try here. On the site, you enter a single search query which results three sets of unbranded results. After viewing the results, you are given an option to vote on one set of results, which then reveals the provider and adds it to the tally.
At the time of writing, Google is in the lead with the tally standing at “Google: 40%, Bing: 31%, Yahoo: 29%” out of 355 votes.
Update: Approximately half an hour after posting, Bing takes a slight lead over Google. (Google: 36%, Bing: 38%, Yahoo: 26% 641 votes)
Update 2: A thousand votes later, Google and Bing are tied. (Google: 39%, Bing: 39%, Yahoo: 22% 1757 votes)
Update 3: Three’s the magic number, for Google. (Google: 40%, Bing: 37%, Yahoo: 23% 2554 votes)
Update 4: Google is taking a stronger lead with another thousand votes. (Google: 43%, Bing: 32%, Yahoo: 25% 3520 votes)
Update 5: It appears the application has exceed Yahoo API’s daily limit. Michael is aware of the problem and looking for a workaround. Yahoo results has since been fixed.
Update 6: Some people’s attempt at gaming the system has forced the tallies to be now removed

How Search Engines Work

The term "search engine" is often used generically to describe both crawler-based search engines and human-powered directories. These two types of search engines gather their listings in radically different ways.

Crawler-Based Search Engines
Crawler-based search engines, such as Google, create their listings automatically. They "crawl" or "spider" the web, then people search through what they have found.
If you change your web pages, crawler-based search engines eventually find these changes, and that can affect how you are listed. Page titles, body copy and other elements all play a role.

Human-Powered Directories
A human-powered directory, such as the Open Directory, depends on humans for its listings. You submit a short description to the directory for your entire site, or editors write one for sites they review. A search looks for matches only in the descriptions submitted.
Changing your web pages has no effect on your listing. Things that are useful for improving a listing with a search engine have nothing to do with improving a listing in a directory. The only exception is that a good site, with good content, might be more likely to get reviewed for free than a poor site.

"Hybrid Search Engines" Or Mixed Results
In the web's early days, it used to be that a search engine either presented crawler-based results or human-powered listings. Today, it extremely common for both types of results to be presented. Usually, a hybrid search engine will favor one type of listings over another. For example, MSN Search is more likely to present human-powered listings from LookSmart. However, it does also present crawler-based results (as provided by Inktomi), especially for more obscure queries.

The Parts Of A Crawler-Based Search Engine
Crawler-based search engines have three major elements. First is the spider, also called the crawler. The spider visits a web page, reads it, and then follows links to other pages within the site. This is what it means when someone refers to a site being "spidered" or "crawled." The spider returns to the site on a regular basis, such as every month or two, to look for changes.
Everything the spider finds goes into the second part of the search engine, the index. The index, sometimes called the catalog, is like a giant book containing a copy of every web page that the spider finds. If a web page changes, then this book is updated with new information.
Sometimes it can take a while for new pages or changes that the spider finds to be added to the index. Thus, a web page may have been "spidered" but not yet "indexed." Until it is indexed -- added to the index -- it is not available to those searching with the search engine.
Search engine software is the third part of a search engine. This is the program that sifts through the millions of pages recorded in the index to find matches to a search and rank them in order of what it believes is most relevant.

Major Search Engines: The Same, But Different
All crawler-based search engines have the basic parts described above, but there are differences in how these parts are tuned. That is why the same search on different search engines often produces different results. Information on this page has been drawn from the help pages of each search engine, along with knowledge gained from articles, reviews, books, independent research, tips from others and additional information received directly from the various search engines.
Now let's look more about how crawler-based search engine rank the listings that they gather.