Web Attackers Get Better at Hiding

    Date20 Apr 2007
    Posted ByBill Keys
    Cybercrooks who rig Web sites to break into PCs are getting better at hiding their malicious code, a security expert said Wednesday.

    Increasingly the actual code, often JavaScript, used to attack PCs is hidden in Flash animations or scrambled so that anyone who examines the source of a page can't easily identify it, said Jose Nazario, a senior software engineer at Arbor Networks, in a presentation at the CanSecWest security confab here.

    "Their obfuscation tools are primitive but effective," Nazario said. "They use obfuscation to avoid simple signatures," he said, referring to security techniques based on signatures to detect malicious Web sites. Signatures are fingerprints of known attacks.

    Web attacks have become commonplace. Tens of thousands of Web sites attempt to install malicious code, according to StopBadware.org. The sites, the bulk of which are compromised sites, often drop a Trojan horse or other pest onto a PC through a security hole in the Web browser.

    LinuxSecurity Poll

    What do you think of the LinuxSecurity Privacy news articles?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    [{"id":"90","title":"Love them!","votes":"90","type":"x","order":"1","pct":78.95,"resources":[]},{"id":"91","title":"I'm indifferent","votes":"18","type":"x","order":"2","pct":15.79,"resources":[]},{"id":"92","title":"Not interested in this topic","votes":"6","type":"x","order":"3","pct":5.26,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.