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[pnews-news] Reuters - Worm hits Yahoo! Mail users

Hank Roth
Tue, 13 Jun 2006 15:14:49 -0700

 http://pnews.org/
Progressive News & Views (since 1982)
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    Reuters

    Worm hits Yahoo! Mail users
    Tuesday 13 June 2006

    A virus that infects computers when users merely read an email - rather 
than open an
    attachment - has hit Yahoo! Mail accounts.

    Yahoo! is the world's largest email services provider and handles 200 
million accounts,
    but it said on Monday that only "a very small fraction" had been infected.

    The worm has been dubbed Yamanner and landed in Yahoo! mailboxes bearing 
the subject
    line "New Graphic Site". Once opened, the message infects the computer and 
spreads to
    other users listed in Yahoo! users' email address books, security companies 
said.

    The email containing the virus need only be opened - in contrast to most 
worms that are
    hidden in attachments and require users to take an additional step - to 
release the virus,
    according to computer security company Symantec.

    The company advised users to update virus and firewall software on their 
computers and to
    block any email sent from [EMAIL PROTECTED]

    Yahoo! said in a statement: "We have taken steps to resolve the issue and 
protect our
    users from further attacks of this worm."

    Yamanner, first detected by Yahoo! and computer anti-virus software makers 
earlier on
    Monday, was ranked as having a low threat level by Trend Micro and McAfee.

    But Symantec considers the worm an "elevated threat", one step up from the 
lowest ranking
    in terms of relative danger.

    Symantec's Security Response site suggested that Yahoo! account holders 
might protect
    themselves by upgrading to the latest test version of the recently upgraded 
Yahoo! Mail
    software.

    "The worm cannot run on the newest version of Yahoo! Mail Beta," Symantec's 
site said.

    Spam campaigns

    A Yahoo! spokesman was not immediately available to comment on whether the 
company advised
    users to do this.

    The worm exploits a JavaScript vulnerability technology used to make the 
mail program
    easier to use by triggering embedded HTML scripts to run in the computer 
user's browser.

    The email addresses are also sent to a remote server, which may be used to 
run spam
    campaigns, analysts said. The technical name of the worm goes by variants 
of JS.Yamanner.

    Threat assessment, removal instructions etc:
    [EMAIL PROTECTED]

    Reuters


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  • [pnews-news] Reuters - Worm hits Yahoo! Mail users Hank Roth