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Type of Malware

Thu, 18 Aug 2011 10:24:36 +0000

Malware can be roughly broken down into types according to the malware’s method of operation. Anti-”virus” software, despite its name, is able to detect all of these types of malware.

There are three characteristics associated with these malware types.
1 Self-replicating malware actively attempts to propagate by creating new copies, or instances, of itself. Malware may also be propagated passively, by a user copying it accidentally, for example, but this isn’t self-replication.

2 The population growth of malware describes the overall change in the number of malware instances due to self-replication. Malware that doesn’t selfreplicate will always have a zero population growth, but malware with a
zero population growth may self-replicate.

3 Parasitic malware requires some other executable code in order to exist. “Executable” in this context should be taken very broadly to include anything that can be executed, such as boot block code on a disk, binary code in applications, and interpreted code. It also includes source code, like application scripting languages, and code that may require compilation before being executed.

Logic Bomb
Self-replicating: no
Population growth: zero
Parasitic: possibly

A logic bomb is code which consists of two parts:
1 A pay load, which is an action to perform. The payload can be anything, but has the connotation of having a malicious effect.
2 A trigger, a boolean condition that is evaluated and controls when the payload is executed. The exact trigger condition is limited only by the imagination, and could be based on local conditions like the date, the user logged in, or the operating system version. Triggers could also be designed to be set off remotely, or – like the “dead man’s switch” on a train – be set off by the absence of an event.

Logic bombs can be inserted into existing code, or could be standalone. A simple parasitic example is shown below, with a payload that crashes the computer using a particular date as a trigger.

Logic bombs can be concise and unobtrusive, especially in millions of lines of source code, and the mere threat of a logic bomb could easily be used to extort money from a company.

Trojan Horse
Self-replicating: no
Population growth: zero
Parasitic: yes

There was no love lost between the Greeks and the Trojans. The Greeks had besieged the Trojans, holed up in the city of Troy, for ten years. They finally took the city by using a clever ploy: the Greeks built an enormous wooden horse, concealing soldiers inside, and tricked the Trojans into bringing the horse into Troy. When night fell, the soldiers exited the horse and much unpleasantness ensued.

In computing, a Trojan horse is a program which purports to do some benign task, but secretly performs some additional malicious task. A classic example is a password-grabbing login program which prints authentic-looking “username” and “password” prompts, and waits for a user to type in the information. When this happens, the password grabber stashes the information away for its creator, then prints out an “invalid password” message before running the real login program. The unsuspecting user thinks they made a typing mistake and reenters the information, none the wiser.

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Browser Battle

Wed, 10 Aug 2011 22:49:06 +0000

In the beginning of the raise of world wide web, companies such as Netscape and Microsoft release new versions of their software on a seemingly constant basis. Whereas other types of software updates can take years, new browsers are released every few months. Probably the biggest reason for the frequent updates is what is commonly referred to
as the browser war.

Currently we do have lots of option on browser, the popular are mozilla firefox, safari, google chrome, internet explorer, etc. Like both Netscape and Microsoft, those browser also update their software constantly in order to attract new users everyday, and its a battle of browser begins.

If the browsers are often very inexpensive or even free, then why is everyone clamoring to get their browser on your desktop? The browser companies make other software, such as server software, which is much more expensive. They are counting on the name recognition from all the free or low-cost software to propel buyers to the higher-priced purchases.

Another issue in the browser war is that of standards. In the software industry, a push usually exists to develop standards, or protocols, that similar pieces of software all use. In the Web industry, the standards are often about HTML, and now XML and XHTML.

The setting of standards in software is not a one-way street, as if the World Wide Web Consortium decides the standards and everyone goes from there. Rather, it is back and forth. Extensions from companies such as Netscape and Microsoft are so commonly used that the software companies have a hand in setting the standards, not just following them.

So what about the developments in the browser war? (And why should you care?) The developments are so important because they vastly affect your ability to design effective, accessible Web sites. It is the business of every professional Web designer to stay on top of browser developments and how they are going to affect Web design.

Browser is something we ordinary know and use everyday, but the history and the battle or competition between them are interesting to follow. In each browser have their own advantages and disadvantages, and those fact are good materials to write in an essay. If you do need help on writing them, custom essay writing service able to solve your problems.

Reverse Firewalls

Tue, 09 Aug 2011 23:00:05 +0000

A reverse firewall filters outgoing traffic from a network, unlike a normal firewall which filters incoming traffic. In practice, filtering in both directions would probably be handled by the same software or device.

As with firewalls, the key to an effective reverse firewall is its policy: what outbound connections should be permitted? The principle is that a worm’s connections to infect other machines will not conform to the reverse firewall policy, and the worm’s spread is thus blocked. The decision is based on the same packet header information as was used for a firewall, including source and destination IP addresses and ports.

A host-based reverse firewall can implement a finer-grained policy by restricting Internet access on a per-application basis. Only certain specified applications are allowed to open network connections, and then only connections in keeping with the reverse firewall’s outbound traffic policy. A worm, as a newly-installed executable unknown to the reverse firewall, could not open network connections to spread.

In theory. Still, worm activity is possible in the presence of a host-based reverse firewall:
• A worm can use alternative methods to spread when faced with a reverse firewall, such as placing itself in shared network directories. As a result, no worm code is run on the host being monitored by the reverse firewall.
• Legitimate code that is already approved to access the Internet can be subverted by a worm. A worm can simply fake user input to an existing mail program to spread via email, for instance. A worm could exhibit viral behavior, too, infecting an existing “approved” executable by indirect means, like a web browser plug-in, or more direct means that a virus would normally use. To guard against the latter case, a host-based reverse firewall can use integrity checking to watch for changes to approved executables.
• Social engineering may be employed by a worm. A host-based reverse firewall may prompt the user with the name of the program attempting to open a network connection, for the user to permit or deny the operation.

Firewalls are required for your security bridge, especially if you have online store or any business based on internet connection. For examples, in order to secure your software, you’ll need certain security method and firewall setting to ensure no one enter and steals your software.

Adobe Flash files are usually used for videos, animation, games and interactive applications streamed online. Small Web Format (swf) and Flash Video (flv) are Adobe Flash movies and animations that can be viewed on most browsers. Yet, you may see that your video player have trouble viewing these files. This is why you may need to convert into video or most popular graphic formats. Eltima SWF & FLV Toolbox allows you to convert FLV to AVI video format using any codec installed in your system. It is a great opportunity to create interaction video or frame-by-frame video out of your SWF or FLV files. You can also convert any FLV to SWF file and play it with all controls, applying additional features you bundle the movie with during the conversion. Display movie controls fast-forward, pause, change volume.

Choosing Quality web hosting

Mon, 31 Jan 2011 11:51:53 +0000

Do not ever choose a website hosting without certain facts that it is a quality one, especially if you’re using it for doing your business. Only choose the best web hosting that can run smoothly. Tips on choosing hosting this time hopefully be useful for you who will choose the hosting or hosting has never before bought but turned out disappointing results. Less fitting it would be like to talk about hosting without a domain. Both are like two lovebirds who can not be separated. Hosting as a publisher of data, while their own domain name is the name of the address where your files are placed.

Lets have look below tips before you choose the best one:
1. Features Quality

Feature is the main thing you should look into buying hosting. Currently, there are so many hosting providers that seek to improve the quality of their features in order to face competition with other providers. If not, the customer confirmed immediately fled to other providers. Well, with this increasing feature, could bind and lock their client not to migrate somewhere else.

So what features should be considered?
Here are the main features you should check in web hosting provider:

- SPACE (Large hosting capacity, the bigger the better).
- Bandwidth (Large load data from either the upload or download, the bigger the better).
- Uptime (For websites not often down list, select the hosting uptime which is stable, at least 98% to the above)
- My SQL (more is better)
- Addon Domains (useful for those who want to have more than 1 domain on 1 hosting account)

2. Price Comparison

Once you see its features, if you do not care about the price issue it does not really matter. Another case if you are really considering this issue, then the best solution other than seeing the features offered is by comparing prices from one provider to another provider. This way you can draw conclusions Which web hosting company you use decent.

But remember! Do not be fooled by cheap price with good features then you take for granted. Conversely, it does not mean it is with the price of cheap web hosting cheap and not necessarily be good, there are other considerations that you should look. Do not forget also a price that is usually temporary. Usually some web hosting provides cheap prices only in the first year alone. Medium time extension prices soaring, you’ll want to ask this problem.

3. Number of Clients

Number of clients is a reflection of a hosting judged good or bad by his client. More and more clients, the hosting company usually reliable quality. For that, it would not hurt you also ask this problem to the relevant customer service.

4. Match Requirement

Do not be fooled by hosting also provides versatile features unlimited and that provider has been trusted by clients.
Which means what?

Purchase (rent) hosting your online business needs. Because it would be useless if you require only 50 MB of which only worth several dollar rather than buying others cause you’re tempted unlimited features that you won’t used with higher price. Certainly a far cry from the price comparison, and a lot of unused space will be wasted. Unless you intend to make a lot of websites at once or for long-term business, which does require a large space.

5. Server Location

If you target your marketing in certain countries. We recommend that you have to adjust with the provider you use. Because this will affect the speed of access to your target in question. If they are too long to wait for your web loading, it is not impossible they just run away. Usually the USA servers are lighter and can be easily accessed around the world.

6. Support

The characteristics of web hosting that is professionally managed support is responsive, patient, and always online 24 hours a day 7 days a week. Especially if you’re new to dealing with hosting issues, usually a lot of obstacles you will encounter. This is where the function of the responsive support it means a lot. You will be assisted until your site has really online. They usually also provide a complete range of communication media such as IM, email, phone, or directly come to the place.

7. Complete Address

As mentioned earlier, a good web hosting provider usually also indicate the completeness of the address. Although the client does not have to come into place, but at least will make the client feel safe with that address, so they need not fear that provider only fictitious or afraid to be left vague at times.

8. Company Age

The more older the age of the web hosting provider, usually the more experienced they are dealing with hosting issues.
Old age also showed the higher their flying hours to handle the hosting. They maintain strict program, the software until the contents are allowed to use. Because there is rarely a hosting provider out of business due to not be able to manage their hosting.

Last but not least, everyone would dream on fast hosting with age, then try out fasthosts. Great price and offer other features such as free scripts, site builder, and many more, it is mention on ipage host review.

Finance Software

Fri, 12 Mar 2010 09:37:02 +0000

It is through personal finance that people are able to prepare individual budgets distributed by income from savings, expenses and debt amortization.
Maintain documentation of personal finances is very important, but many people break the course when done manually.

Use of personal finance software has helped many of them spend a better life and more comfortable that they had to do through books and pens.
The characteristics that any ordinary person can not come in with all methods normal accounting are already integrated into the software.
With computers, the work is easier in cases where some files must be removed, altered, duplicated again and again that we do with books, pencils and gums.

This family of devices should monitor inflows and outflows on a daily basis and in relation to budget estimates.
Advantages of personal finance software for research

Ability to multitask good use personal finance software is not limited only to a few tasks.
It offers the possibility of do things like banking and paying bills online, checking their investments in equities, mutual funds, bonds, data transfer software need to save taxes and so on.
It must provide functions account transactions and reconciliation, which also gives users the ability to run banking functions such as writing and printing checks.
For those that manage international trade, the software must provide users the opportunity to exchange, among others electronically.

The features, technological progress, the software developers to maintain Updated versions of a particular product that has made a name for the target.
This concerns personal finance is no different, and if you use it desirable to retain the knowledge of what owners are doing to facilitate its use more user friendly than before, which can order the new and improved.

Great features allow you to work quickly and effortlessly, because the actions and operations that must be replicated, deleted, can be easily edited automatically.
Like most people need some legal information, as the latest tax and revisions to the IRS or revisions of securities markets, such as personal finance software should have this feature.
Simple use: First, users should not be difficult to install on their computers.
It should also be easy to use by anyone with basic accounting knowledge in the sense that they can understand help topics and browse through it.

Financial forecast should allow people to make significant investments in home ownership, insurance, payment of debt, payment of bonding, taxes, savings, and many other monetary goals before winning his life may decrease.
So need to keep good records showing how each of these objectives and is progressing with the Personal Finance software that allows these actions, there may be many things.
Final reports, after all transactions on a daily basis, an effective program for each fund to provide the final information and summaries so you can see how it differed from the budget for a given period.
It is through this type of software you can clearly see how their finances has been used in the projections of past, present and to be informed the next day.
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Marketing your own software

Fri, 12 Mar 2010 09:33:41 +0000

You want to sell more software from your website? How do you make the client truly understand your product and trust it and your company enough to pay the price? Tips on what you should do.

Selling software online is not an easy task. How do you make the client truly understand your product and trust it and your company enough to pay the price? Like it or not, it’s very similar to selling face to face: the first impression may be decisive for the client’s future actions. Online, the website is your face.
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It has to be comprehensible and easy to use. Here are a few tips on how your website should be to sell software better:
• It has to look professional and attractive at the same time

You don’t have to show off your web designer skills. Too many colours, graphics, flash animations or drop-down boxes can only tire the visitors and make them leave faster. Fewer graphic will also make the site load faster. At the same time, it shouldn’t be dull, so it needs to be somewhere in the middle.
• Make sure your message comes across loud and clear.
In order to sell more software, information about software products must be easy to find, easy to follow and the same goes for the order process. Since most information is in the text, make it easy to read. Some coloured backgrounds make the text difficult to read, like purples, orange and reds. On the other hand, dark backgrounds may have a depressing effect on the visitor’s mood. The text colour is very important. Keep in mind that different browsers show colours differently, so don’t go crazy with it. It’s better to use Plain fonts, like Arial, Times New Roman, Verdana and Courier, because they’re easier to read. Fancier fonts may be used for headlines, but not full text. Remember though that sans serif fonts are easier to read on screen.
• Easy navigation is law.
Make sure there’s a link to the homepage at the top left of every page, except the homepage itself. Be careful not to have dead end from which the visitor can’t find their way back to where they came from. Place the most important links in the top part of each page. Clearly mark read and unread links, preferably using standard colours.
• Base the site’s hierarchy on your customers needs.
Don’t make them search the entire site before they find information about products, prices and payment methods.
• Don’t make pages too long.
A web shouldn’t be more than 23 normal pages lengths, as no one likes an endless scrolling. If you have information for more than that, divide it into several pages with short information clips on the main index page leading to the second page.
• Check all the links on your website to make sure they lead to a page.
Tags from the navigation menu must be representative for what that page is about.
• Serve friendly error messages.
Don’t let the visitors see a page with 404 not found written on it. Put your creativity to good use. Error messages may include navigation to documents that do exist, a search box or a contact email address.
• Have a privacy statement and testimonials.
Potential clients must feel confident dealing with you. Having a separate page to express your policy towards their email addresses, how you accept orders and gather information, who has access to information and how you use that information will help you sell more software. Also make a separate page for comments from satisfied customers. Offer to include links to the customers websites in return for using their comments.
• Contact information or a link to it should be on every page.
If customers need additional information about the product, contact information like a phone number and an email address should be easy to find on the website. Let people know the hours and days of operation and the time needed to answer their requests. Give a contact name; it makes people have more faith that someone will actually read their message.
• Set up a frequently-asked-questions (FAQ) page.
Base it on real questions your customers had in the past.

Computer Safety Tips

Fri, 12 Mar 2010 09:28:47 +0000

Achieving good computer security can seem like a daunting task. Fortunately, following the few simple steps outlined below can provide a good measure of security in very little time.
Use antivirus software and keep it updated. You should check for new definition updates daily. Most antivirus software can be configured to do this automatically.

Install security patches. Vulnerabilities in software are constantly being discovered and they don’t discriminate by vendor or platform. It’s not simply a matter of updating Windows; at least monthly, check for and apply updates for all software you use.
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Use a firewall. No Internet connection is safe without one. Firewalls are necessary even if you have a dial-up Internet connection – it takes only minutes for a a non-firewalled computer to be infected.

Secure your browser. Many labor under the dangerous misconception that only Internet Explorer is a problem. It’s not the browser you need to be concerned about. Nor is it a matter of simply avoiding certain ‘types’ of sites. Known, legitimate websites are frequently being compromised and implanted with malicious javascript that foists malware onto visitors’ computers. To ensure optimum browsing safety, the best tip is to disable javascript for all but the most essential of sites – such as your banking or regular ecommerce sites. Not only will you enjoy safer browsing, you’ll be able to eliminate unwanted pop-ups as well.

Take control of your email. Avoid opening email attachments received unexpectedly – no matter who appears to have sent it. Remember that most worms and trojan-laden spam try to spoof the sender’s name. And make sure your email client isn’t leaving you open to infection. Reading email in plain text offers important security benefits that more than offset the loss of pretty colored fonts.

Treat IM suspiciously. Instant Messaging is a frequent target of worms and trojans. Treat it just as you would email.

Avoid P2P and distributed filesharing. Torrent, Kazaa, Gnutella, Morpheus and at least a dozen other filesharing networks exist. Most are free. And all are rife with trojans, viruses, worms, adware, spyware, and every other form of malicious code imaginable. There’s no such thing as safe anonymous filesharing. Avoid it like the plague.

Keep abreast of Internet scams. Criminals think of clever ways to separate you from your hard earned cash. Don’t get fooled by emails telling sad stories, or making unsolicited job offers, or promising lotto winnings. Likewise, beware of email masquerading as a security concern from your bank or other eCommerce site.

Don’t fall victim to virus hoaxes. Dire sounding email spreading FUD about non-existent threats serve only to spread needless alarm and may even cause you to delete perfectly legitimate files in response.

Remember, there’s far more good than bad on the Internet. The goal isn’t to be paranoid. The goal is to be cautious, aware, and even suspicious. By following the tips above and becoming actively engaged in your own security, you’ll not only be protecting yourself, you’ll be contributing to the protection and betterment of the Internet as a whole.