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Worm creates fake gmail accounts

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    Worm Solves Gmail s CAPTCHA, Creates Fake Accounts Jeremy Kirk, IDG News Service A Vietnamese security company has detected what it believes is a new worm
    Message 1 of 1 , May 1, 2009
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      Worm Solves Gmail's CAPTCHA, Creates Fake Accounts


      Jeremy Kirk, IDG News Service




      A Vietnamese security company has detected what it believes is a new worm
      that _thwarts Google's security protections _
      (http://www.pcworld.com/article/143270/crafty_spam_outsmarts_gmails_filters.html?tk=rel_news) in order to
      register new dummy Gmail accounts from which to send spam.
      Bach Koa Internetwork Security (BKIS) said the worm was discovered earlier
      this week in one of its honeypots, the term for a computer set up to catch
      samples of malicious software. BKIS has named the malware
      "W32.Gaptcha.Worm."
      Once a computer is infected with Gaptcha, the worm launches the Internet
      Explorer browser and goes to Gmail's new account registration page. It begins
      to fill in random names of fictitious users. When confronted with _a
      CAPTCHA, _
      (http://www.pcworld.com/businesscenter/article/158234/captcha_allows_comments_keeps_spam_bots_out.html?tk=rel_news) the worm sends the image to a
      remote server for processing, wrote Do Manh Dung, senior malware
      researcher, on the BKIS _blog_ (http://security.bkis.vn/?p=586) .
      A CAPTCHA (Completely Automated Public Turing test to tell Computers and
      Humans Apart) is the distorted text that a person must solve before a new
      account can be created. It used to be hard for computers to translate the
      text, but improvements in OCR (optical character recognition) technology have
      overcome that barrier. In some cases, spammers are believed to employ people
      in low-income countries to figure out the CAPTCHA in order to gain new
      e-mail accounts.
      Once a new registration is complete, the account details are then e-mailed
      to a spammer. After too many account registrations, Google will eventually
      block the particular computer creating the accounts. The worm then removes
      itself, Dung wrote.
      Google officials contacted in London did not have a comment on the latest
      worm, but it and other companies that provide free e-mail accounts have been
      besieged over the last few years by spammers using sophisticated
      techniques to create fake accounts.
      Free e-mail accounts are valuable to spammers. E-mail sent from those
      accounts has a better chance of making it past antispam filters since it comes a
      trusted domain, although companies use other methods such as text analysis
      to pluck out rubbish e-mail.


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