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unixronin: Galen the technomage, from Babylon 5: Crusade (Default)
Unixronin

December 2012

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Wednesday, March 25th, 2009 08:16 am

Not all of you folks on my FL read [livejournal.com profile] databeast, or keep up with the tech press.  Which is why I’m quoting his most recent post in its entirety here:

Next week, at 8pm EST/00:00 GST, the Conficker worm will download its next code update.

I’ve spent the last 4 months spending damn near my every waking hour fighting this thing.

If you have no idea what I’m talking about, just go google ‘Conficker’ now.  I’ll be happy to answer any questions.

In the meantime, go to http://windowsupdate.microsoft.com/ and download every last update on there.

Tell your friends to do the same.

if you can’t reach that site, you are already infected. Take your machine offline and get it disinfected by a professional.

But remember this, right now If you are not part of the solution, you are part of the problem.

Conficker is shaping up to be the scariest, largest botnet ever to have existed.  If you use Windows as your operating system, and you don’t regularly update it, you are part of the problem, and your computer is likely now the property of some shadowy criminal syndicate based out of God-Knows-Where.

If you aren’t a Windows user, but you know people who are, tell them the above instructions.  We have less than 7 days until what could, in the worst case scenario, be the most destructive event ever witnessed on the internet, a vast, data-stealing network owned by an organized crime syndicate.  We aren’t talking science fiction here folks.

If every man would sweep his own doorstep the city would soon be clean.

Italian Proverb

He’s not kidding, folks.  Conficker (aka Downup, Downadup, or Kido) is serious bad news.  It’s the next level of Internet worm evolution; it’s Botnet 2.0, the most sophisticated worm yet seen.  During one of its major activity spikes, on January 15-16, Conficker infected 1.1 million PCs in less than 24 hours.  At that time, F-Secure estimated — conservatively — that 3.52 million systems were infected worldwide.  By January 21 the number was believed to be around 9 million.  Current estimates run as high as 12 million.

For the technically knowledgeable among you, SRI International has an analysis of the most recent Conficker-C variant here.  For the non-technical, McAfee has some less technical information about what it does here.  And PC World has an article here detailing how it attacks and some measures you can take to protect yourself if you’re not already infected.  (The article is slightly out of date; one recent Microsoft security patch disables AutoRun for you as a precaution.)

One point from [livejournal.com profile] databeast‘s post cannot be emphasized enough:

If you run Windows, with ANY browser, and you can read this post, but you cannot get to www.windowsupdate.com, or GRIsoft.com (home of AVG antivirus), or Trend Micro, or Sophos, McAfee or Kaspersky or any other antivirus site, assume you are already infected.  Take your computer offline and seek professional assistance to get it disinfected and patched.

On April 1, the Conficker botnet goes active.  And we don’t have any idea what its new instructions will tell it to do.  But it could be very, very bad.


UPDATE:

Since Conficker can’t block downloads of tools from sites that don’t match its internal list of strings, I’ve mirrored several of the free Conficker removal tools locally:

So if you can’t get to windowsupdate or any of the antivirus sites, you can download removal tools here.

Tags:
Thursday, March 26th, 2009 11:39 am (UTC)
Yeah, I know that one. People who kept reinstalling Bonzi Buddy on work machines. People who thought 11111 and qqqqq were perfectly cromulent passwords. People who kept turning off the virus scanner because it slowed down their computer ...

Fortunately the worst we ever got was a quickly-contained outbreak of an Excel macro virus that someone, probably the comptroller, brought in on a floppy disk from an unsecured home machine.
Thursday, March 26th, 2009 07:27 pm (UTC)
Things like; All internet ports are closed, unless business reason is needed for them to be open. All those nifty utilities just didn't seem to work... Don't get me started about games. (The game ports opened after 1900, and stayed open until about 0300.)

As far as passwords went, I just shut down some access to the business system for easily cracked passwords. I figured that everyone used the same password everywhere, so it was all good. (I was bad, I didn't require frequent password changes. I reasoned that a long-term, secure password was better than a short-term, weak password.)

[The Webmaster kept the M$ 13? ports open on his BSD web server. He got a laugh every day at the script kiddies trying to run IIS exploits against his system. Odd sense of humor...]
Thursday, March 26th, 2009 07:37 pm (UTC)
I was bad, I didn't require frequent password changes. I reasoned that a long-term, secure password was better than a short-term, weak password.
I'm with you there. Sooner get people to pick a strong password once and remember it, and require changes only if there's reason to suspect a compromise, than make people change their passwords every two weeks and have half the monitors and half the desks in the company have sticky-notes on them with the user's current password written down in clear.

The Webmaster kept the M$ 13? ports open on his BSD web server. He got a laugh every day at the script kiddies trying to run IIS exploits against his system. Odd sense of humor...
Heh. Been there, done that. :) I have most of the common PHP and CGI exploit URLs tarpitted. But I changed my incoming ssh port because I got sick and tired of my logs filling up with the same idiot script-kiddies blindly trying the same brute-force dictionary attacks day after day after day after day. There was one 'tard who would restart the dictionary attack every day at about the same time, from the same point in the dictionary. It stopped being funny, and became just pathetic and annoying.