Hydra-headed 'Storm' attack starts
Web-based attack poses as greeting card, tries three exploits
Computerworld - A new round of greeting-card spam that draws users to visit attack sites relies on a sophisticated multipronged, multiexploit strike force to infect machines, security professionals said late today.
The quick browser status exam in this attack is somewhat similar to one used in a different exploit tracked by Symantec Corp. since Tuesday, but the two are not connected, said Oliver Friedrichs, director of Symantec's security response group. "They're using two different tool kits, but they're both prime examples that exploits against browsers are more and more prevalent," he said.
Today's greeting-card gambit tries a trio of exploits, moving on to the second if the machine is not vulnerable to the first, then on to the third if necessary. The first is an exploit against a QuickTime vulnerability; the second is an attack on the popular WinZip compression utility; and the third, dubbed "the Hail Mary" by the ISC, is an exploit for the WebViewFolderIcon vulnerability in Windows that Microsoft Corp. patched last October.
"Every Storm-infected system is potentially capable of hosting the malware and sending the spam, but only a few will be used in any given run," said the alert, "depending on how many e-mails they want sent and how many Web hits they're expecting."
Hackers haven't abandoned the practice of attaching malware to e-mail, then counting on naive users to open the file, said Friedrichs. But malware-hosting sites are the trend. "It's much more difficult to send a full malicious file," he said, because of users' learned reluctance to open suspicious files and filtering and blocking tactics by security software.
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