Talk and Act
Network Attacks.
Network attacks are less common phenomenon than viruses, but more dangerous. The purpose of network attack may be misappropriation of information, or blocking the work of an individual computer or the whole network. Network attacks are usually committed by well-trained hackers, although there are cases children are doing it for fun. There are plenty of network attacks and their classifications; I will describe only the most famous.
• Brute force.
This is a method of overcoming protection by password. The idea is that the password is chosen by enumeration of all possible variations. It can be used both on the network and on the local machine. Sometimes brute force is applied with the use of dictionaries. Therefore it is necessary to use the passwords resistant to guessing. And of course the same password should not be a meaningful word. It is desirable to use numbers with letters, as well as uppercase and lowercase letters.
Example: in case of burglary at a speed of 10000 combinations per second (using the Latin alphabet in one register + digits), the rate of guessing a password of 4 characters ~ 20 seconds; of 8 characters – about 10 months. Of course if the hacking will not go in the dictionary.
• Network Intelligence.
Network Intelligence usually precedes the attack itself and serves to identify the types of operating systems, services, and etc. ?? victim’s computer. Subsequently this information can be used for breaking.
The most common intelligence – is port scanning. The idea is that each program running on the network on your computer has a network port, on which the program receives information from the network. Scanning the ports, you can learn the type of operating system, installed applications, as well as their version (that is important too)
• Exploit.
Exploit – is a program designed to break the system. Its principle of operation is that using the vulnerability of any program on the computer of the victim, it can do unauthorized actions in it. There are “local” and “remote” exploits. Local ones aimed at improving the attacker’s privileges (for example, to obtain administrator privileges) (they are also called rootkit); remote exploit operates through a network and uses vulnerability in security without any prior access to a vulnerable system.
The network intelligence is necessary for the use of the exploits that allows you to identify the vulnerable software.
Typically unskilled “Hackers-kiddies” are used exploits, taking a ready-made program for hacking.
The constant updating of your software for closing the “holes” in the system is the protection against exploits.
Sometimes the exploits are used to spread viruses (which I already wrote above). The virus infects the computer of the victim using the vulnerability in the system. The whole “epidemics” of viruses are linked with such viruses.
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And it is very important that you follow a final piece of advice – today the web technologies give you a really unique chance to choose exactly what you require for the best price on the market. Funny, but most of the people don’t use this chance. In real practice it means that you should use all the tools of today to get any information that you need.
Search Google or other search engines. Visit social networks and check the accounts that are relevant to your topic. Go to the niche forums and join the online discussion. All this will help you to create a true vision of this market. Thus, giving you a real opportunity to make a wise and nicely balanced decision.
And also sign up to the RSS on this blog, because we will do the best to keep this blog tuned up to the day with new publications about the market of spyware removers and any changes on it.
Tags: Adware, remove spyware, spyware, spyware blockers, spyware removers
Posted in Computers · May 31st, 2010 · Comments (0)
There are many variants:
• If you download a file from the Internet. It is written on the site from which you get it that it is the program whish you need, and as a result it might contain a virus (or your program infected by virus)
• You receive e-mail or a message via ICQ with the attached file. The fact is that many viruses, having infected computer, begin to be distributed to your contacts. You cannot even know about it.
• With removable carrier. For example, you insert the flash drive into your computer. The disc contained a virus, and it is automatically activated. Have you never noticed that when you insert the CD into the computer with the game, the game will offer to install? Here is exactly the same, the virus will be installed and will not ask you.
• Through the network. If you have the vulnerable program in the computer, the virus can get on your computer from the infected computer to the Internet.
What to do if your computer is infected with a virus?
First you need to determine whether it is true. Sure signs of infection of a computer are:
• Display of unwanted messages, images, etc.
• Output of unwanted signals by computer.
• Start any program without your participation.
• Even having Firewall – appearance requests from unknown programs for Internet access.
• Send e-mail from you without your knowledge (also from your ICQ messages copies of the virus can be sent).
• Frequent freezes and failures (although this may happen not only because of the virus).
• Slow work of programs or computer in general (e.g. if the virus “trashed” RAM)
• The disappearance of files or directories or the distortion of their contents (for example, the emergence of executable files with the name of the folder in which they appear).
• Internet browser behaves “inadequate” (for example, when entering on any site, you find yourself constantly on the other).
• Inability to boot.
If you believe that there is a virus on your computer, then do following items:
• Disconnect the computer from the Internet and local networks.
• Remove all removable media (flash drives etc.) (Remember that they are probably already contaminated too, you should not connect them to other computers, as they may be infected too).
• Install Anti-Virus (I recommend Kaspersky Anti-Virus or DrWeb) (and update its virus database).
• Scan your PC by Antivirus fully.
How to protect yourself from the virus?
• Install antivirus. It is not necessarily to keep it turned on all the time. You can periodically scan your computer. Although I do not recommend doing it because many Antivirus scan all executable files before starting. So if you run a virus accidentally, Anti-Virus can block its implementation.
• Use a firewall (firewall, firewall) – This program monitors and filter passing through network packets. If you see a notice that some program without your notification tries to connect to the Internet, you should check whether you have a virus.
If you need to find a nice remove spyware infection or any helpful information about the topic of spyware removers, please visit the hyperlinked web site.
And it is very important that you follow a final piece of advice – today the online technologies give you a really unique chance to choose what you require for the best price on the market. Funny, but most of the people don’t use this opportunity. In real practice it means that you must use all the tools of today to get any information that you need.
Search Google and other search engines. Visit social networks and have a look on the accounts that are relevant to your topic. Go to the niche forums and join the online discussion. All this will help you to build up a true vision of this market. Thus, giving you a real opportunity to make a smart and nicely balanced decision.
And also sign up to the RSS feed on this blog, because we will do the best to keep this blog tuned up to the day with new publications about the market of spyware removers and any changes on it.
Tags: Adware, remove spyware, spyware, spyware blockers, spyware removers
Posted in Computers · May 31st, 2010 · Comments (0)