Thursday, July 30, 2009

Behind the creation of computer viruses

Here my thought about behind the creation of computer viruses.

Nyxem virus has started to clean up the essential files from infected computers. Nyxem.E is a worm that evil may be different from mailing copies of itself as an attachment to an address book of contacts in a user's email client.

Nyxem is programmed to delete a number of common document format files such as PowerPoint presentations, Word documents, Excel spreadsheets, Adobe Acrobat PDF files, ZIP files and PSD from 3 De February and the third a month later.

In addition to the destruction of files, the worm also tries to disable antivirus software to stop update, delete Windows registry entries and can also be important to disable the keyboard and mouse of computers infected. It was also reported that some Internet users have lost important files after becoming infected by the worm Nyxem, mainly because the time was wrong on your computer. Many users have their disk and format.

Many antivirus vendors have released patches for Nyxem, but it is estimated that thousands of computers are still infected. Most of these infected computers are of the opinion that in India, Turkey and Peru, but many other computer systems around the world could be taken as Nyxem virus will try to send copies of itself to contacts in an address book the user.

The worm tries to get through the same local network as any computer has been compromised.

To prevent infection Nyxem worm and loss of data files that should not open attachments or click links in emails, especially if these e-mails about a porn-Subject line or respect, with exotic images. The worm uses an icon that is trying to cover themselves. Zip. You should also back up all important files you want. It is also recommended to scan your computer for viruses.

Monday, July 27, 2009

Signs that your computer has a virus or spyware

Here my thought when your computer has a virus or spyware.

Of course, if the Internet, the best way to be sure that your computer remains virus-free, is a good anti-virus is installed. However, it is always possible that a virus can slip, no matter how your anti-virus. With so many different types of viruses, as you do when you say, you have one? Well, the answer is simple, if your computer is different, it is him, there is a chance that you have been infected.

One of the first things you can, if your computer is infected with a virus, your computer is slower than normal. You can use a slower than normal, or run programs more slowly than normal. Sometimes, the computer may appear, as it is something, if not, it could be a sign of a virus or spyware that you do something, are not known.

Another thing you should take care programs, which is different, many viruses are to make your programs more slowly than normal. Sometimes a program can not be loaded, then it seems that it is loaded, never loads completely. Programs may not display or on a spirit that does things that you have not.

Also, be sure all changes to your computer or program, some viruses appear as icons on your desktop or in folders, use caution when each file or symbols not to recognize and analyze them with your anti -virus and spyware remove software. Do not open suspicious files or folders, at least until you've checked that.

If your browser starts otherwise it could also indicate a virus or spyware. For example, if the home page of your browser has been altered, even if not in mind that sometimes a program you have installed, your home page, it's still something sure of. One thing happened to me, if I had a virus was that if I wanted to close Internet Explorer only in the further opening up more and more riders, there was no possibility of closing as it whenever I clicked on to do more than open tabs. I have Virus Scan and sure enough, I was infected by a virus, after the removal of this virus this strange behavior stopped.

Of course, there are other signs that you may be infected by a virus or spyware, if you see what others on your computer, it is best for only an analysis to be sure. Keep your anti-virus and anti-spyware updated and run regularly, many of these programs may be that analysis to certain hours, you can scan, if you are not using your computer. If you about the Internet on the importance of a good anti-virus can not be stressed enough.

Sunday, July 26, 2009

Maintaining Your PC From Viruses

Here another tips on maintaining your PC from Viruses.

We are always on the dangers of viruses and how they relate to our computers. However, if we make the right precautions can make your PC from malicious software. Before examining how to achieve this, we need to know what a virus is and how it can be rented.

A virus is a small piece of software that sets itself to a program. If the program runs, the virus runs and can be copied and pasted to other programs.

Sometimes these viruses through e-mails and stored on your computer when the e-mail. For example, in 2000 named ILOVEYOU virus spread via e-mail. It was a piece of code in the e-mail as an attachment, when opened and sent to all members of the user's address book, corruption of files on the computer of the individual victims.

In the case of e-mail viruses such as the ILOVEYOU virus, the infection can easily be avoided. As a user must open the attachment for the virus to be brought forward, we can help protect your computer by simply not attachments or clicking on links in an e-mail that seems suspicious, especially those who do not know. This is reflected in many web pages - in the submission guidelines on the publisher's web sites, specifically the request for the dispatch of the e-mail and not as an investment, because they click on attachments to the people who are not if they are harmful.

Viruses are not always in control of the user. Worms are viruses that spread over computer networks, often the use of security vulnerabilities in software and operating systems. To ensure that your equipment is as safe as possible, make sure you have an antivirus program installed and it is up to date. Anti-virus programs need not be expensive, there are many free programs available for download to protect your computer. Corruption or loss of files can be devastating, it is also very important to create a backup of important files in case the worst should happen.

Saturday, July 25, 2009

Virus Infection On Your PC

Here's some info about Virus infection on your PC.

If you let your guard down - and even if you do not - can be difficult to tell if your computer is infected. This is what you should do if you suspect the worst. I've heard about this before? You must run antivirus software and keep it updated, or infect your computer, you will lose all their data, and can bear the wrath of all the letters from friends who are infected unknowingly due to his negligence. You know, you're right. Nevertheless, for one reason or another, you're not running antivirus software, or if it is not so far. Maybe you disable your antivirus program, because in conflict with another program. Perhaps tired of improvement after he had bought a Norton AntiVirus 2001, 2002 and 2003. Or maybe your annual subscription of virus definitions recently expired, and that to delay repairs. It happens. This is nothing to be ashamed. But chances are, regardless of whether they are infected right now as we speak, or he will be very soon. Within a few days in late January, the worm was infecting about 2,500 computers NetSky.P daily. Meanwhile the MySQL bot infected approximately 100 systems a minute (albeit not necessarily desktop PCs). As David Perry, global director of education for security software Trend Micro, said: "unprotected [Windows] computer will become owned by a robot within 14 minutes." Currently, viruses, worms, and so-called bots - which turn your computer into zombies, which makes the hacker in the bidding (such as mass mailing spam) - it will not announce their presence. Real viruses are not like those of Hollywood movies that melt your entire network in seconds and destroy alien spacecraft. In the background, quietly changing the data, theft of private operation, or use a computer for their own illicit purposes. This makes them difficult to detect if it is not very well protected. Your computer is "owned"? First of all, I would say that not every system oddity is due to a virus, worm, or a robot. Is your system slowing down? Is your hard drive filling fast? There are programs to fail without warning? These symptoms are likely caused by Windows, or badly written legitimate programs, rather than malware. In the end, people who want to write malicious software to hide its presence. People who write commercial software, that all the icons on your desktop. Who will remain undetected? Other indicators that may, in fact, shows that there is no need to worry about include: * E-mail telling you that you are sending mail infected. E-mail viruses and worms, as a rule, from false addresses. * Frantic note from a friend that had been infected and, therefore, as well as you. This is probably a lie. This is particularly suspicious if the note tells you that the virus could be detected, but can not get rid of it by deleting one simple file. Do not be fooled - and do not delete this file. I'm not saying you should ignore such warnings. Copy the theme, or a fragment of text e-mail and connect to your favorite search engine, so that if other people have received the same note. The site can be bound as security, and deception. Inhalation of vapors from infection There are signs that the computer is actually infected. A lot of network activity on your system (if you're not on the network) can be a good indication that something is wrong. Good software, such as a firewall ZoneAlarm, will ask your permission before you give anything to leave the computer and give you enough information to help determine the output is legal. Incidentally, the firewall that comes with Windows, even the enhanced version of Windows XP Service Pack 2, lacks this feature. To put a network status light in the system tray, follow these steps: In Windows XP, click Start, Control Panel, Network Connections, right-click the network connection you want to monitor, choose Properties, check "Show icon in notification area when connected" and then click OK. If you are interested in becoming a team of detectives, can sniff around further for malware. Pressing Ctrl-Alt-Delete in Windows, you can open Task Manager, which displays the various processes in the system of governance. Most if not all, legitimate, but if you see that the file name looks suspicious, type in a search engine and find out what it is. Want to search for another location? In Windows XP, click Start, Run, type "services.msc" in the box and press "Enter." You will see a detailed description of Windows is running. See something wrong? See your search engine. Finally, you can do more detective work by selecting Start, Run and type "Msconfig" in the field. With this tool not only to see the services and programs carried out by your system at startup. Again, find something wrong. If any of these tools does not work - or if your software does not work - that in itself is a good sign your computer is infected. Some viruses intentionally disable such programs as a way to protect yourself. What do I do next Once you are sure your system is infected, do not worry. There are steps you can take to assess damage, depending on your current level of protection. * If you do not have antivirus software on your system (shame on you), or if the program has stopped working, stay online and go to the free scan at one of several websites. There FreeScan McAfee, Symantec security check, and Trend Micro HouseCall. If you do not find anything, try two. In fact, to hold free online viruses is a good way to test their anti-virus program. When you're done, buy or download antivirus software. * If you have antivirus software, but is not active, get offline, unplug wires - whatever it takes to stop your computer from communicating via the Internet. Then, quickly scan with the software. * If you do not seem to be working, do more research on the web site. There are several online virus libraries where you can find out about known viruses. These sites often provide instructions for removing viruses - if manual removal may be - or a free removal tool if it is not. Check Grisoft Virus Encyclopedia, Eset in Virus Descriptions, McAffee Virus Glossary year in Virus Encyclopedia Symantec, Trend Micro and the Virus Encyclopedia. One microgram of prevention Assuming that your system is clean, you must ensure that it remains that way. To prevent the violation of computer security is much more effective than cleaning a mess afterwards. Let's start with a good program, for example, Trend Micro PC-Cillin, which can be purchased for $ 50. They do not want to deposit any money? You can cobble together security through free downloads, such as AVG Anti-Virus Free Edition, ZoneAlarm (personal firewall), and Ad-Aware SE (an antispyware tool). Just be sure to save all software updates. Ill try new ways to fool security programs. Any security tool without regular, easy (if not automatic) updates is not worth your money and your time. Speaking of updating, the same can be said for Windows. Use Windows Update (which is in the Start menu) to make sure you get all high-priority updates. If you are using Windows XP, be sure to get Service Pack 2. To find out if you already have it, right-click the My Computer icon and select "Properties." On the General tab, in accordance with the system, you should say: "Service Pack 2." Here are a few pointers to a life free from viruses: * Be careful with e-mail. Setting up email software settings high. Do not open any message with the general issues that sound does not apply specifically to you from people who do not know. Never open an attachment, if you were not expecting it. * If you have access to broadband Internet, such as DSL or cable, a router, even if you only have one PC. The router adds an additional level of protection, because your computer does not connect directly to the Internet. * Check your Internet ports. These doors between your computer and the Internet can be opened, and in this case the computer is very vulnerable, are closed, but still a little fragile, or stealth (or hidden), which is more secure. Visit the Gibson Research Web site and run the test ShieldsUP to open its ports to see the situation. If some ports are closed - or worse yet, open - check your router documentation to find out how to hide them.

Thursday, July 23, 2009

How To Secure Your Computer From Internet Threats

Here some tips to secure your computer from internet threats.

Once you are connected to the Internet, there are many Internet threats such as viruses, trojans, spywares, hackers that may damage, slow down or steal information from your PC.

The following points will provide some insights on how you can better protect your computer against common Internet threats. It is written in simple non-technical terms so that beginners or non-technical personnel are able to understand. Every security safeguard a computer user takes will reduce the number of people skilled enough to break into their computer using various attack methods.

(1) One of the common Internet threats is virus attacks. What is a virus ?

Viruses are computer programs which has these characteristics:

1. The program is able to self-replicate.

2. The program is able to activate itself. In addition, viruses spread by infecting files.

Here is my encounter with viruses:

"Back when I was administering multiple office networks across the region, I have seen some viruses such as "Netsky" attacking the computer networks and they come in by the thousands (20,000 in a night to be precise!).

Fortunately, I had an anti-virus program that was blocking these virus onslaught from entering into the Computer Data Centre which holds the company critical operations and data storage. The unsung hero (The anti-virus) did it's job well and not a single virus came through the company network. Unfortunately, the server that runs the anti-virus had a hardware failure due to the extremely high traffic of cleaning these viruses.

I had to immediately get ready a standby server to take over the anti-virus job and later installed a clustered anti-virus solution for high availability. This meant an anti-virus software is the absolutely the first protection that a computer cannot do without".

So how to get protection and are there FREE Anti-Virus?

The ANSWER is yes. One of the popular Anti-Virus is AVG Free Edition Anti-Virus.

(2) Another form of Internet threat is Spyware.

Spyware programs are able to retrieve various types of personal information and can also by itself install additional software, pointing your web to other web sites that may have viruses. Furthermore, multiple spywares can cause your computer to slow down as it takes up your CPU, Memory and Disk space. Your network performance may also suffer as spyware redirect unwanted network traffic.

Traditionally an Anti-Virus is adequate to protect a PC but now it is essential to also include Anti-spyware program to counter this threat. Anti-spyware programs are to monitor your PC for spyware while giving you a peace of mind while going about your on-line activity.

There are also FREE and popular Anti-Spyware programs such as Spybot Search and Destroy and Lavasoft Adware Personal.

(3) Trojans

These are computer programs that can hide themselves behind an innocent looking e-mail attachment (e.g. a tempting computer game). Once the attachment is executed, the trojan will install itself into the computer and it can now start doing damage to your computer.

Some trojans has spyware, which is software that keeps track of Internet usage statistics and it will send these information back to the creator.

Most anti-virus comes with trojan removal. However, nowadays it is better to equip your PC with a personal firewall. It will help you to block unwanted applications/virus from trying to penetrate your PC.

The above represent the basic defense against Internet threats. Of course there many more measures to minimize these threats. If you require more information and step by step guide to install the above security software, please refer to the website listed below.

Tuesday, July 21, 2009

How to Fix Rundll32.exe?

Here the tips on how to fix Rundll32.exe.

Rundll32.exe is an important process of your windows operating system. The process rundll32.exe executes dll files and puts their libraries into your system's memory. Without this process your computer would become instable and very slow.

The process runs from your system directory C:\windows\system32. If it executes or runs from a different location it is most likely a virus or trojan horse. You should scan your computer immediately with a virus scanner. Viruses using the name rundll32.exe are W32.Miroot.Worm. Backdoor.Lastdoor, and Trojan.StartPage (among others).

Fix Rundll32.exe

If a virus, such as the Netsky, destroys your rundll32.exe or, if for some other reason, your rundll32.exe is corrupt or gets accidentally removed, you need to take the following action:

Locate a Copy of Rundll32.exe on Your System

Check if you find a copy of rundll32.exe in the folder C:\windows\system32\dllcache or in C:\windows\ServicePackFiles\i386. If this is the case, go ahead and copy rundll32.exe to the system folder C:\windows\system32

If you don't find a copy on your system, you can try to find the file on your windows installation disks. Lastly, you could simply re-install windows. However, this would be very time-consuming and you might lose all your data. So this would be the last resort.

First of All Run a System Repair Tool to Fix Rundll32.exe

There are various tools available on the Internet that scan, analyze, and fix your computer. Besides fixing your rundll32.exe, these tools will remove any registry errors, remove invalid shortcuts and duplicate files, repair DLL files, and remove startup and runtime errors.

Monday, July 20, 2009

Worm Attack

Some fact you need to know about Worm Attack.

I was expecting some nice gifts and not being threatened with worm.win32.netsky on Christmas day morning. When I turned my computer on windows security alert boxes kept popping up to say that my computer had been hacked into and had a virus and another warned that it had been infected by worm.win32.netsky. My Internet Explorer was constantly opening and trying to take me to spyware removal download sites.

There were 3 new icons on my desktop 'privacy protector', 'Error Cleaner' and 'spyware & malware protection'. I had definitely not downloaded them so I reasoned that they could only be part of the problem that I was having. They started scanning by themselves, one told me that I had 161 spyware problems and another 243. Worm.win32.netsky was at the top of both lists and lower down were references to credit card hacking. My desktop turned dark red and a warning bar appeared telling me to click on it to protect my computer.

At first I was worried then logic took over. My virus and spyware software, which comes with my broadband service, updated the day before and when I ran a check it came up with nothing. I had vaguely heard of worm.win32.netsky and did not think that it was so new that a virus scan would not pick up on it. I figured that the whole attack was to panic me into buying one of the products. I am stubborn and if I buy spyware protection it would not be through those methods.

I did a google search for worm.win32.netsky and found a long list of sites. Most of the sites described it as part of the netsky family of email worms that comes to your computer as an email attachment. When you click on the attachment the worm activates then installs itself on your computer and propagates. It harvests email addresses stored on your computer and spreads further by sending itself to them. One or more spyware removal downloads were recommended, but I still did not believe that the computer was infected by anything more than bullying sales methods.

I finally found a forum where a member had described exactly the same thing happening to him. Apparently Worm.Win32.Netsky is a scam, fake malicious software called Smitfraud, an anti-spyware program trojan, engineered by Internet hackers. A fraudulent way to get you to buy spyware removal software. He was pointed in the direction of SmitFraudFix v2.274 and the fix worked for him. I downloaded it and used it and thought that it had worked.

The next day the warnings and desktop icons reappeared. I quickly ran Smitfraudfix again and then I restored my computer to 14 days before the problem appeared. So far so good, the fix and restore seem to have worked. SmitFraudFix v2.274 which apparently only works with Windows XP or 2000 was a free download so the whole thing cost me nothing but time and anxiety. Just to make sure I got a free download of Spyware Doctor from Google and ran it to make sure that my computer was clear and deleted cookies with it.

One of the sites that my IE insisted on going to was selling XP Antivirus. If you do a search for XP Antivirus you will find claims that it is a corrupt anti spyware application that will try to trick you into buying it by falsifying error reports. Do not even think about buying it. XP Antivirus will not remove spyware it will not do anything useful, just scam you out of money.

Where did the problem come from? I am not sure. I had not opened any email attachments for months and would only open attachments if I were expecting them. I downloaded some ebooks and software the day before but had not opened them at that point. I always check downloaded files with a virus scan before I unzip them anyway.

Another possibility is that I visited a dodgy site and the rogue anti spyware program leached onto my computer. In fact when I thought about my surfing the night before it is the most probable explanation. No I do not make a habit of visiting dodgy sites! I was checking my article directory stats and towards the top of a long list of incoming links was a domain that I did not recognise. Out of curiosity I clicked on the link and was taken to a porn site. I did not stick around long enough to see if or why there was a link to my directory, but I will have to do a search to see if any of the articles have links to that site and delete them if they have.

I recall that several years ago when I ran a magazine I checked a link from an advertisement that a subscriber had wanted me to publish. That was a porn site and a virus attacked my computer immediately afterwards. I got rid of the virus and needless to say I did not accept the ad. As I check the links with the articles submitted to my directory I cannot be as careful as I would like to be.

They say that curiosity killed the cat; well it only inconvenienced and annoyed this one. The whole thing is fraudulent and a scam. I am really glad that I did not get caught out but no doubt many others will. Fortunately I always do a search if I am unsure of anything or want to find out about something. The best and most honest answers or information usually comes from forums, not the sites with reviews and links to the products.

Of course worm.win32.netsky might really have been a worm from the netsky family then I really would have had a bigger problem to deal with. I thought that my broadband virus and spyware software would look after my computer but I will now look for something better. I really cannot understand the mentality of the malicious people who manufacture worms and viruses, or the scamsters who try to trick you out of your money.

Sunday, July 19, 2009

How To Remove Netsky Worm Infection.

Here's some tips on how to remove Netsky Worm Infection.

If your computer is infected with the Netsky virus? Do not freak out! You're not alone. Indeed, a study in 2007 found that 20% of infections were malignant by the worm. In 2004, a group of experts from the most dangerous viruses the world. Before moving on, as you Netsky, I am a little more information about the virus and how was infected.

The virus is spread by mass email. You may have an e-mail were sent and of unknown origin and open the attachment. Once the attachment that you are infected by the Trojan horse known as the Netsky virus. Some variants of viruses:

Netsky-W32
Netsky-P
Netsky-Win32
Netsky-Q
W32 Netsky-P
Win32 Netsky-Q
Netsky-k
Netsky-g

Trojan virus can lead to many problems on your system. You can not only infect your registration and to destroy the computer, some viruses Trojan spy for sensitive information such as passwords and credit card numbers. You need to destroy the virus before it has a chance devastating.

Netsky distance

So, as you Netsky? I would not recommend it, since manual removal can be very difficult and dangerous. You just need a high performance antivirus program to scan and remove sections of the worm I have in such a program and you can try for free from.

How To Secure Your Wireless Network

Here's the tips on How To Secure Your Wireless Network.

Virus was so rare, and harmful than the mere mention of the word to the people in hysterics (some have even swore on the internet (gasp)). But today, viruses are so common that people rarely a worm, virus or trojan a second thought, especially those relating to the anti-virus programs such as virus protection from McAfee. Indeed, according to McAfee, there are currently 58,000 active virus floating around the computer at risk.

Why are viruses so often? It's all about code. Code is a general term for the language of the computer that says how to start, the openness of Microsoft Word, e-mail, and so on. Code can be used for good or bad for the creation of viruses, worms and trojans that you want to your computer to make things bad, very bad things. But blame your computer! He knows not the difference between good and bad code and should therefore work to protect against viruses and Internet security, firewalls, like McAfee Internet Security Suite, ie the difference and destroy the bad, the threat of your computer.

Users who depend on programs such as McAfee anti-virus and Norton Anti-Virus, the superhero apparently from the virus weathering, the magical powers, by giving us a false sense of security regarding their immunity to the virus, not Board urged not to be renewed. It is then that your computer is on the radar of thousands of viruses on the lookout for a place to beat. So, what the code to kill them if no protection against viruses? Yes, there are things that fresh and connected, you can use your money on software to protect against viruses, but that the purchase, such as McAfee Internet Security Suite as an insurance policy for "life" on your computer. We buy cars, health, life, home, and if you're lucky, or private jet, yacht insurance, why not buy insurance the Internet (or viruses). Without them, the task of the manual for your threats, what difficult battle to win. To view a list of the latest viruses and their classification, where the amount of damage they can cause to your computer, click Mcafee Virus Protection Security page.

Top 5 most widespread virus:

1. W32/Netsky.P @ mm - 28.67%
2. W32/Zafi.b @ mm - 25.26%
3. W32/Zafi.D @ mm - 15,05%
4. HTML / IFrame @ expl - 13,05%
5. W32/Netsky.D @ mm - 8.33%

Win Netsky

Here what I found about Win Netsky.

The e-mail communication is the standard for most people. This is not just for social networks, but from the large companies, universities and non-profit organizations as the preferred means of communication. Not to mention that many people that as an opportunity to share their personal property and the payment of the invoice for the purchase of products. Since the e-mail is so common and popular, there are also risks in heavily on its performance.

The biggest risk that the user of the computer when accessing their e-mails is that the demand of computers infected with viruses harmful side effects. Most people have little Windows dialog box with the warning that the facilities are not for themselves. The box asks: "Are you sure you really want to open the file" Moreover, where alarm is used to open files only if you know and trust the source of where they come from.

An example of an undesirable that your computer makes you is Worm Win32 Netsky. Only he is in fact an e-mail worm, which is part of the Netsky family. Do you not know before to open the file that the worm is located in the appendix. But once your mouse to the plant Worm Win32 Netsky starts reeking damage on your system.

Initially, the cheeky worm via e-mail addresses and begins sending e-mails to all that you have saved. Here is how it spread to other computers. Your friends and your family could be dealing with this problem without you or even know.

Of course, Worm Win32 Netsky is quite nice, to inform you that your computer did. But do not be fooled. This is part of the spectacle. Pop-up with the opening on your computer to be avoided. Internet browser "stands for the promotion of sites, the software to help you to free the worm. Attention! These are malicious software. This means that it does not really work and are a way for fraudsters to take part in your money and your personal data.

Moreover, symbols and remove spyware scans on your computer automatically starts when a possibility of promotion on products. Do not click to protect your computer, how to discuss the news. Again, there are only attempts to make your money and your personal data.

Now that you are afraid to total Worm Win32 Netsky, there is some good news. They rid of the worm by uninstalling manually on your computer to download software to delete it.

To the worm manually delete them, go to Start Settings Control Panel --- --- --- software. Find the program called Worm Win32 Netsky. Highlight and click Remove. Finally, remove the unwanted icons on your desktop and empty the trash.

If you're on the road to the software reset attack by worms, a search for software SmitFraudFix. This software will facilitate the care of the worm, and help you restore your system to its previous state.
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