[nfbcs] Fw: Windows security, something to worry about

tribble lauraeaves at yahoo.com
Sat Jan 24 05:06:53 UTC 2009


Sorry for the cross post, but I thought this one was worth the read.
Makes me not want to put anything personal on my machine.  I just noticed 
logging onto a site the other day that there was something on the system 
that had saved my password, even though I had not asked it to -- I tried 
just clicking on login and lo and behold the password worked. This worried 
me as it was a financial site that I would never have written a cookie 
for -- in case my computer is lost or stolen or just fiddled with by 
visitors, I don't want that info on my hard drive.  Does anyone have an idea 
what program could have done this? Is it a google plugin or could it be a 
worm?
Article below. Enjoy.
--le


----- Original Message ----- 
From: "Will Smith" <wilsmith at IGLOU.COM>
To: <BLIND-L at LISTSERV.UARK.EDU>
Sent: Friday, January 23, 2009 8:08 AM
Subject: Windows security, something to worry about


This article appears in today's New York Times, and it is one more
examples of why I use windows sparingly and do not enjoy or trust
computing when using any flavor of windows.  Be careful when computing
with this operating system!

Will
wilsmith at iglou.com
                   Worm Infects Millions of Computers Worldwide

    By [7]JOHN MARKOFF

    A new digital plague has hit the Internet, infecting millions of
    personal and business computers in what seems to be the first step of a
    multistage attack. The world's leading computer security experts do not
    yet know who programmed the infection, or what the next stage will be.

    In recent weeks a worm, a malicious software program, has swept through
    corporate, educational and public computer networks around the world.
    Known as Conficker or Downadup, it is spread by a recently discovered
    [8]Microsoft Windows vulnerability, by guessing network passwords and
    by hand-carried consumer gadgets like USB keys.

    Experts say it is the worst infection since the Slammer worm exploded
    through the Internet in January 2003, and it may have infected as many
    as nine million personal computers around the world.

    Worms like Conficker not only ricochet around the Internet at lightning
    speed, they harness infected computers into unified systems called
    botnets, which can then accept programming instructions from their
    clandestine masters. "If you're looking for a digital Pearl Harbor, we
    now have the Japanese ships steaming toward us on the horizon," said
    Rick Wesson, chief executive of Support Intelligence, a computer
    security consulting firm based in San Francisco.

    Many computer users may not notice that their machines have been
    infected, and computer security researchers said they were waiting for
    the instructions to materialize, to determine what impact the botnet
    will have on PC users. It might operate in the background, using the
    infected computer to send spam or infect other computers, or it might
    steal the PC user's personal information.

    "I don't know why people aren't more afraid of these programs," said
    Merrick L. Furst, a computer scientist at [9]Georgia Tech. "This is
    like having a mole in your organization that can do things like send
    out any information it finds on machines it infects."

    Microsoft rushed an emergency patch to defend the Windows operating
    systems against this vulnerability in October, yet the worm has
    continued to spread even as the level of warnings has grown in recent
    weeks.

    Earlier this week, security researchers at Qualys, a Silicon Valley
    security firm, estimated that about 30 percent of Windows-based
    computers attached to the Internet remain vulnerable to infection
    because they have not been updated with the patch, despite the fact
    that it was made available in October. The firm's estimate is based on
    a survey of nine million Internet addresses.

    Security researchers said the success of Conficker was due in part to
    lax security practices by both companies and individuals, who
    frequently do not immediately install updates.

    A Microsoft executive defended the company's security update service,
    saying there is no single solution to the malware problem.

    "I do believe the updating strategy is working," said George
    Stathakopoulos, general manager for Microsoft's Security Engineering
    and Communications group. But he added that organizations must focus on
    everything from timely updates to password security.

    "It's all about defense in depth," Mr. Stathakopoulos said.

    Alfred Huger, vice president of development at [10]Symantec's security
    response division, said, "This is a really well-written worm." He said
    security companies were still racing to try to unlock all of its
    secrets.

    Unraveling the program has been particularly challenging because it
    comes with encryption mechanisms that hide its internal workings from
    those seeking to disable it.

    Most security firms have updated their programs to detect and eradicate
    the software, and a variety of companies offer specialized software
    programs for detecting and removing it.

    The program uses an elaborate shell-game-style technique to permit
    someone to command it remotely. Each day it generates a new list of 250
    domain names. Instructions from any one of these domain names would be
    obeyed. To control the botnet, an attacker would need only to register
    a single domain to send instructions to the botnet globally, greatly
    complicating the task of law enforcement and security companies trying
    to intervene and block the activation of the botnet.

    Computer security researchers expect that within days or weeks the
    bot-herder who controls the programs will send out commands to force
    the botnet to perform some as yet unknown illegal activity.

    Several computer security firms said that although Conficker appeared
    to have been written from scratch, it had parallels to the work of a
    suspected Eastern European criminal gang that has profited by sending
    programs known as "scareware" to personal computers that seem to warn
    users of an infection and ask for credit card numbers to pay for bogus
    antivirus software that actually further infects their computer.

    One intriguing clue left by the malware authors is that the first
    version of the program checked to see if the computer had a Ukrainian
    keyboard layout. If it found it had such a keyboard, it would not
    infect the machine, according to Phillip Porras, a security
    investigator at SRI International who has disassembled the program to
    determine how it functioned.

    The worm has reignited a debate inside the computer security community
    over the possibility of eradicating the program before it is used by
    sending out instructions to the botnet that provide users with an alert
    that their machines have been infected.

    "Yes, we are working on it, as are many others," said one botnet
    researcher who spoke on the grounds that he not be identified because
    of his plan. "Yes, it's illegal, but so was [11]Rosa Parks sitting in
    the front of the bus."

    This idea of stopping the program in its tracks before it has the
    ability to do damage was challenged by many in the computer security
    community.

    "It's a really bad idea," said Michael Argast, a security analyst at
    Sophos, a British computer security firm. "The ethics of this haven't
    changed in 20 years, because the reality is that you can cause just as
    many problems as you solve." 





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