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INTERNET: Traps Online

Last Updated on Tuesday, 07 June 2011 05:30 Written by Administrator Tuesday, 07 June 2011 05:28

The development of the Internet is not immune to cyber criminals who profit from all the cracks. Surf the web has never been so dangerous. A brief overview of the dangers that await you.

Networks with thousands of "zombie" acting in the shadows, ready to attack at any time ... This does not come from the nightmare scenario of a B-movie to computer by a lot of sensations. This is a real threat hanging over every computer user insufficiently protected. Viruses infect machines quietly to open a backdoor to the internet, designed to link and synchronize them. Rented by the hour or week, these networks from attacks by "denial of service" (overload a server by a large number of requests) or the mass distribution of spam (unsolicited email). The Japanese National Police Agency is to dismantle a score of these networks, one of which consisted of 30 000 units. It shows the links between them and an online betting site English threatened by a blackmailer. End of 2004, Telenor, a Norwegian communications operator, announced the disconnection of a network of 10,000 zombie PCs. Experts estimate that one million of these machines on the net. Viruses such as MyDoom or SoBig are specially designed to install backdoors on infected PCs. Operating quietly, they remain invisible to users who participate in spite of them, a vast network of organized crime.


This practice also allows large-scale infection by spyware (spyware who record keystrokes, passwords, bank codes), adware (adware that can bring up ads for products or biased change the start page), and dialers (automatic dialers that disconnect and reconnect the user to a premium rate number) or keyloggers (fraudsters secret codes). According to a survey by Webroot, a software data protection, CoolWebSearch, a program specifically malicious misuse of users who install by loading a web page of seemingly innocuous, was listed on 10% of the systems audited. The publisher announced that it has identified 39 000 different types of spyware in circulation on the web.


The zombies are also involved in the phenomenon of spam, these e-mails extolling the virtues of drugs, viagra pills, or software at reduced prices. The research firm of Information Technology IDC estimates that 12 billion the amount of spam received daily in the world. A practice that clogs networks (for AOL, the share of spam represents 75% of the volume of mail in 2004) and pollutes the mailboxes. In addition to advertising, these facilitate phishing mails, or "phishing", a technique that is attracting Internet users to a website, impersonating, logo and colors of a large company (bank, trading company, online service, etc.). to recover the user's confidential data (passwords, credit card number ...) and use or sell them for fraudulent purposes. According to antivirus vendors Symantec, 33 million phishing attempts are blocked by their anti-fraud filters weekly. The Anti-Phishing Working Group 2625 identifying new sites lures in February 2005 and the diversion of 64 brands through mail campaigns. In December 2004, 9000 phishing campaigns, operating on hundreds of thousands of email addresses, were launched. Mainly in English, phishing spared until France. Now, six months, attempts are increasing. France is now the fifth country to host 2.7% risk of false sites worldwide. A first conviction occurred in late 2004 in Strasbourg. One year suspended sentence and a fine of 8500 euros were made ​​against a student guilty of identity theft in several French banks. Latest to be hit, instant messaging appear sees his first escape viruses and spyware and spam or phishing or.


The naivety of the surfers involved

The traps set by the pirates of the web based mostly on software security vulnerabilities. Internet Explorer, the browser most used with 93% market share in late 2004, remains the main target of hackers who track his every hard faults. Thus, it is possible to divert the user to a web site mimicking a known while displaying a fake web address. Firefox, Internet Explorer main outsider, has chosen to offer 500 euros each person who is capable of reporting a bug in its software to guard in advance of the attacks. Beginning in April 2005, Michael Krax, a German researcher, received 2500 euros for the discovery of five anomalies.


According to Médiamétrie, 46% of French people use the net. The increase in attacks is strongly linked to its considerable growth and development of broadband. A joint study conducted by U.S. firms Mirapoint and Radicati Group, reveals that one in ten Internet users have purchased a product offered by spam. 31% of Internet users have clicked on a hyperlink that appears in a spam message. 18% of them have tried to unsubscribe by clicking the link provided for this purpose, allowing spammers to verify the validity of the address. The Radicati Group estimates that spam messages are expected to represent 57% of traffic in 2005, reaching 78% in 2009. This is expensive for ISPs. Spam can knock their mail.


Symantec announced that it has raised a total of 850 spyware in an hour walk on the canvas, with a high concentration of spyware on sites for children, easy prey. If the risk is not zero, the naivety of users is crucial to the proliferation of various scams. The user will benefit from behavior and preventive alert to thwart the various pitfalls that arise and keep the fun to surf with confidence.