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Microsoft Virus Spam: SoBig.F

If you're being barraged with Microsoft virus spam emails today, this story notes that it's a flare-up of an older Microsoft virus in a new, improved form. Yay for trustworthy computing.

44 of 557 comments (clear)

  1. Thank you Spamassassin by Gothmolly · · Score: 5, Informative

    If you set your score for MICROSOFT_EXECUTABLE high enough, and these emails with their .pif attachments get sent right to /dev/null

    --
    I want to delete my account but Slashdot doesn't allow it.
    1. Re:Thank you Spamassassin by vrone · · Score: 5, Interesting

      I wish Mozilla Mail had some setting for this too. It's statistical filtering is great after it's been trained, but it did me no good this morning. By the time I got to work, my inbox had over 5000 new messages. Sure, it's trained now, but I spent over an hour this morning deleting them since I didn't want to delete legit mail too.

      So how did I get 5000 new messages? I know I'm not in the address books of that many people who got infected, so this one must be doing dictionary addressing as well as address book addressing. Since my email address is of the format [first initial][lastname]@[a large company].com, and my last name is very common, I got pummelled. Maybe I should switch to a more obscure address. :)

    2. Re:Thank you Spamassassin by Uggy · · Score: 4, Informative

      Don't need spamassassin for this. If you are using qmail-scanner just set your quarantine-attachments.txt in /var/spool/qmailscan/ like so:

      .exe 0 EXE attachements not allowed
      .vbs 0 VBS attachements not allowed
      .lnk 0 LNK attachements not allowed
      .pif 0 PIF attachements not allowed
      .com 0 PIF attachements not allowed
      .scr 0 SCR attachements not allowed
      .bat 0 BAT attachements not allowed

      Make sure whitespace between the columns is a tab and not spaces. Then rerun your qmailscanner db update and you're good to go.

      Spamassassin is WAY to intelligent to be feeding it filename extensions. This is a lot faster too.

      Are there any other extensions that would be good to block?

      --
      Toddlers are the stormtroopers of the Lord of Entropy.
    3. Re:Thank you Spamassassin by Anonymous Coward · · Score: 5, Informative

      We filter these at the mail server:

      *.com, *.exe, *.bat, *.vbs, *.vbe, *.js, *.jse, *.hta, *.wsf, *.wsh, *.shs, *.scr, *.pif, *.lnk, *.chm

      All are potential vectors.

      http://antivirus.about.com has a bigger list of suspicious attachment types. Some are document types, but others are just special executable types in Windows, such as .chm files, which are compiled help files.

      It isn't these *have been* exploited by virus writers (though many have), but rather that they *could be*, because of their nature. I would never filter all of them, but I've gotta admit after scanning the list, most of these would be surprising to me to find in an email.

      ADE Microsoft Access Project Extension
      ADP Microsoft Access Project
      BAS Visual Basic Class Module
      BAT Batch File
      CHM Compiled HTML Help File
      CMD Windows NT Command Script
      COM MS-DOS Application
      CPL Control Panel Extension
      CRT Security Certificate
      DLL Dynamic Link Library
      DO* Word Documents and Templates
      EXE Application
      HLP Windows Help File
      HTA HTML Applications
      INF Setup Information File
      INS Internet Communication Settings
      ISP Internet Communication Settings
      JS JScript File
      JSE JScript Encoded Script File
      LNK Shortcut
      MDB Microsoft Access Application
      MDE Microsoft Access MDE Database
      MSC Microsoft Common Console Document
      MSI Windows Installer Package
      MSP Windows Installer Patch
      MST Visual Test Source File
      OCX ActiveX Objects
      PCD Photo CD Image
      PIF Shortcut to MS-DOS Program
      POT PowerPoint Templates
      PPT PowerPoint Files
      REG Registration Entries
      SCR Screen Saver
      SCT Windows Script Component
      SHB Document Shortcut File
      SHS Shell Scrap Object
      SYS System Config/Driver
      URL Internet Shortcut (Uniform Resource Locator)
      VB VBScript File
      VBE VBScript Encoded Script File
      VBS VBScript Script File
      WSC Windows Script Component
      WSF Windows Script File
      WSH Windows Scripting Host Settings File
      XL* Excel Files and Templates

    4. Re:Thank you Spamassassin by KingJoshi · · Score: 5, Funny
      Maybe I should switch to a more obscure address. :)

      Advocating security through obscurity? On SLASHDOT? tsk tsk. :p

      --
      In times like these, it is helpful to remember that there have always been times like these. - Paul Harvey
    5. Re:Thank you Spamassassin by kumachan · · Score: 4, Funny

      I feel so lonely :'( Everytime an address book virus attacks, I am left out. Does this mean I don't have any friends? Sure you get 5000 emails... rub it in, Mr Popular :)

  2. Let's hear it for Pine! by Robert+Hayden · · Score: 4, Funny

    'nuff said.

  3. heh by abhisarda · · Score: 4, Informative

    Just read about about it on the BBC

  4. Small norway with largest outbreak by joeykiller · · Score: 5, Interesting

    Here in Norway it seems as "everyone" has got SoBig.F or is getting annoyed with fake emails from someone who has it.

    This virus is just a little variation of an older virus, but it differed enough from the older iterations so that anti virus software didn't detect it.

    The virus provider Norman reckons that a big organization in Norway has been hit early and that this caused the big numbers here: Norway stands for 36% of the outbreaks of this virus in the world, which is exceptional when you know that only 4 million people live here.

  5. Goodtimes Virus Alert! by Anonymous Coward · · Score: 5, Funny

    NO MORE GOODTIMES!
    There's a new virus that will re-write your hard drive. Not only that, but it will scramble any disks that are even close to your computer. It will recalibrate your refrigerator's coolness setting so all your ice cream goes melty. It will demagnetize the strips on all your credit cards, screw up the tracking on your television and use subspace field harmonics to scratch any CD's you try to play.

    It will give your ex-girl or boyfriend your new phone number. It will mix Kool-aid into your fishtank. It will drink all your wine and leave its socks out on the coffee table when there's company coming over. It will put a dead squirrel in the back pocket of your good pants and hide your car keys when you are late for work.

    Goodtimes will make you fall in love with a penguin. It will give you nightmares about circus midgets. It will pour sugar in your gas tank and shave off both your eyebrows while dating your girl or boyfriend behind your back and billing the dinner and hotel room to your Discover card.

    It will seduce your grandmother. It does not matter if she is dead; such is the power of Goodtimes. It reaches out beyond the grave to sully those things we hold most dear.

    It moves your car randomly around parking lots so you can't find it. It will kick your dog. It will leave libidinous messages on your boss's voice mail in your voice! It is insidious and subtle. It is dangerous and terrifying to behold. It is also a rather interesting shade of mauve.

    Goodtimes will give you Dutch Elm disease. It will leave the toilet seat up. It will make a batch of Methamphetamine in your bathtub and then leave bacon cooking on the stove while it goes out to chase gradeschoolers with your new snowblower.

    Goodtimes will prompt your mother to call on Friday and Saturday nights for two months after you make a new girlfriend/boyfriend. It will place your wallet and keys on an obscure shelf in the basement. It will emulate your face and stare into the neighbor's bathroom window.

    Goodtimes has been linked to cancer in laboratory mice. 9 out of 10 dentists recommend Goodtimes.

    Goodtimes will make your bloomers shrink two sizes, and it will make you gain 15 pounds. If this results in a wedgie, then Goodtimes will leave a nasty skid mark.

  6. Snowcrash? by Lord_Dweomer · · Score: 4, Funny
    You know, with all these virii running around...and the potential danger of them, I'd really like to see an initiative to educate the typical 'dumb Microsoft user'. I'm not talking full tech jargon, but just an informative message, that is persistent, not annoying. Perhaps someone wants to do something like at the end of Snowcrash, where Hiro changes the virus to display "If this had been a virus, you'd all be dead now." (not exact quote, but I don't have my book with me) Just a virus that would go around and pop up a message on boot or something informing them of the various vulnerabilities on their system, how they most likely got them (warez, AOL, email hoax, etc). Now...I'd never do this...but if someone else wanted to steal this idea, I promise I won't sue for IP infringement. Really. (crosses fingers)

    --
    Buy Steampunk Clothing Online!
    1. Re:Snowcrash? by jazman_777 · · Score: 5, Insightful
      I'd really like to see an initiative to educate the typical 'dumb Microsoft user'.

      Won't work. Dumb people are incapable of a realistic self-evaluation. Here's why.

      --
      Slashdot: Failed Car Analogies. Amateur Lawyering. Anecdote Battles.
  7. Funny..... by Tsali · · Score: 5, Funny

    ... there's an ad for MS Small Business Server 2003 at the top of the article.

    It's like advertizing space on a blue screen.

    --
    This space for rent.
  8. This software will help if you got the virus by joeykiller · · Score: 5, Informative

    I should have mentioned this in my last post... if you've got the SoBig.F virus, FSecure has posted a free fix here.

    ftp://ftp.f-secure.com/anti-virus/tools/f-sobig.ex e

  9. Got hammered... by Vexler · · Score: 5, Interesting

    We certainly got hammered for a good part of today from a university down south who shall remain anonymous. Contacted their IT/infrastructure department and was told that one of their mail servers got used as a relay, and nobody found out about it until a few hours ago. If I were them I would have shut down their MTA and flushed the queue a long time ago, but that's just me...

    1. Re:Got hammered... by johnkoer · · Score: 5, Funny

      Hey I can't blame them... when I was at a university I was hammered pretty much every day.

  10. Editors need to be more honest. by mr_luc · · Score: 4, Interesting

    Look. I hate Microsoft, too.

    But what the fudge does this have to do with trustworthy computing? It's just another email worm, and it relies heavily on user stupidity, much moreso than the msblaster worm.

    Let's be honest: Microsoft is an evil company, that forces an evil product on people, and some of us are going to cheer when Microsoft gets hurt and people get nudged towards other operating systems -- whether it's Microsoft's fault, or not.

    Could you just have written "Hey, anything that discourages Windows use!" after the story? I mean, christ, that's exactly what probably a good 90% of people here are thinking when they read these stories.

    1. Re:Editors need to be more honest. by weston · · Score: 4, Insightful

      But what the fudge does this have to do with trustworthy computing?

      Everything. Aside from the concerns that trustworthy computing is doublespeak for restricted computing, even if you assume that MS is talking about the *right* kind of trustworthy computing, this virus is the latest in a well-populated freakin' pantheon of examples of their failure to be able to provide anything of the sort.

      In other words, this is one more chance to ask yourself: why should you trust microsoft?

      Side note: I've had several acquaintances attempt to commiserate with me in the last week about various windows viruses. But I don't feel the pain. I'm using Win XP, but a good firewall helps with most of the problems, and you know, Thunderbird is a good email client and a nice way to avoid the Outlook viruses that people erroneously call email viruses.

    2. Re:Editors need to be more honest. by JMZero · · Score: 4, Insightful

      using Win XP, but a good firewall helps with most of the problems

      Your firewall helps with this? What, by blocking the mail port? Or does your firewall parse SMTP and block viruses (hint: if it did, it might be called a mail filter or something)?

      Thunderbird is a good email client and a nice way to avoid the Outlook viruses that people erroneously call email viruses.

      This one has nothing to do with an Outlook vulnerability. It's an e-mail trojan horse. Unless your mail client is unabled to receive files with certain extensions, virus checks them, or executes them under a different permission level (unlikely under Windows), then it's vulnerable.

      You represent the most dangerous class of computer users - confident and uninformed.

      --
      Let's not stir that bag of worms...
  11. This one will probably spread real fast by Judg3 · · Score: 5, Interesting

    I just received one of these today from webmaster@match.com. But I received it on my Hotmail account.

    And seeing how Hotmail proudly proclaims on every message:
    "Notice: Attachments are automatically scanned for viruses using McAfee Security"
    we'll be getting a lot of hotmail users opening it to take a peak

    --
    Looking for hardware (Currently need: Large Etch-a-Sketch) Have one? See my journal!
  12. Virus notifications are worse by RedHat+Rocky · · Score: 5, Interesting

    I'm not seeing very many messages with SOBIG, as them get filtered at the mail server.

    However, the large number of "Your message to xyz@zyx.com contained a virus" is filling my mail spool faster than any spammer. Seems one of my email addresses is a popular one to spoof.

    CALL TO ADMINS: Please turn off viral notifications to outside addresses. These days most of the envelope addresses are spoofed, you're not doing any good leaving the notification in place.

    And I thought joe-jobbing was bad.

    --
    Anything is possible given time and money.
  13. huge outbreak here by skt · · Score: 4, Interesting

    There has been a very large outbreak here, inside the firewall this morning.. This is probably the largest that I can remember, since we do not use Outlook/Outlook express we seem to dodge the big ones. I didn't even think this looked that bad at first glance, it doesn't really try to exploit any security holes to infect the machine. What got us was that the virus scanners were just old enough not to catch this until it was too late. All it really took was one or two people opening the attachment. The new engine didn't get pushed until at least an hour after the first internal case was discovered. By then though, it had spread so quickly that many other hosts had been infected.

  14. Feh. by American+AC+in+Paris · · Score: 4, Interesting
    I've got a bunch of un-munged addresses floating out there (a lot of my visitors aren't all that tech saavy) all pointing to one box. It's been hitting me since about 8:00 AM EST.

    Fortunately, I use Mail.app, so I can still check my mail with impunity.

    There's a spam/address verificiation message I saw that other day that was pretty clever, though. Some spammers sent a reasonably official-looking letter with Citibank headers, layout, and images telling people to click a link to view and accept a new ToS, or their checking account would be suspended. The link looked something like this:

    http://www.citibank.com:A78F...(random hex crap)...A812@127.0.0.1/cgi-bin/c.pl?user=youraddre ss@yourserver.com

    So they were logging you in as user www.citibank.com to server 127.0.0.1 (changed, obviously) and sending your email address to a verification script. Damn clever.

    --

    Obliteracy: Words with explosions

  15. hmm by cetan · · Score: 5, Informative
    --
    In Soviet Russia...michael would be rotting in Siberia!
  16. Bug? by Zog+The+Undeniable · · Score: 5, Interesting
    Shouldn't we have a new /. icon for viruses? They're not bugs, because they generally - Blaster DoS URL cock-up notwithstanding - do exactly what they're supposed to.

    OTOH, we could replace the Bill-as-Stephen-Hawking with the bug icon, and no-one would care ;-)

    --
    When I am king, you will be first against the wall.
  17. Re:Unix History by gregarican · · Score: 4, Funny

    Maybe you're the guy contributing the crappy code, seeing you type like your fingers are wrapped in chicken wire.

  18. Interesting Thing about Sobig... by Jucius+Maximus · · Score: 5, Funny
    Sobig.A appeared on 2003 Jan 09 and was programmed to deactivate on ??.
    Sobig.B appeared on 2003 May 19 and was programmed to deactivate on May 31.
    Sobig.C appeared on 2003 June 01 and was programmed to deactivate on June 08.
    Sobig.D appeared on 2003 June 18 and was programmed to deactivate on July 02.
    Sobig.E appeared on 2003 June 09 and was programmed to deactivate on July 14.
    Sobig.F appeared on 2003 Aug 19 and was programmed to deactivate on Sept 10.

    It seems like the Sobig release schedule is more consistent and on-time than ... well ... the software release schedules of a major company we love to hate ;-)

    1. Re:Interesting Thing about Sobig... by Jucius+Maximus · · Score: 5, Interesting
      "Just wondering... Why are viruses programmed to deactivate?"

      Built in obsolescence? Maybe the writer always wants you to have the latest version or something. This also reminds me of the recent musings of a software company we love to hate ;-)

  19. Re:Block Attachments on Exchange? by gregarican · · Score: 5, Informative
    There are command line utils in Exchange 5.5 that can help delete these attachments totally. Look on the installation CD for details.

    Starting with Office XP you'll see that Outlook automatically blocks attachments ending in PIF, BAT, EXE, etc. This is an absolute that can only be modified through admin policies out in an Exchange folder.

    If you are looking for this type of deal I *think* Outlook 2000 has a service pack that installs the attachment blocking.

    Hope this helps!

  20. How are stupid users MS's fault? by dirk · · Score: 4, Insightful

    I find it funny that once again a virus is being blamed on Microsoft. The only way to spread this is to open the attachment and run it. How is Microsoft supposed to stop people from opening attachements? If you use MS Outlook you are actually immune to this virus, as Outlook blocks most executable attachments. Please explain to me why a user running a file (which then opens it's open SMTP server and emails itself to people) is Microsoft's fault? This same thing could happen on Linux, there is nothing stopping a Linux user from running a file attachment. This isn't a MS problem, it is a user education problem.

    --

    "Information wants to be expensive" - Stewart Brand, the same guy who said "Information wants to be free"
  21. How about Trustworthy System Administration? by FilthPig · · Score: 4, Interesting

    Alright Michael! Way to blame MS for a user issue.

    Seriously, there are competant NT admins in the world.

    This should be a no-brainer, but if you run MS systems and you often have problems with worms or virii:

    1. Keep your virus definitions current. This goes double for any laptop users with broadband at home.
    2. More often then not, MS has already released a patch for a security hole before a worm or virus hits. Keep your systems up to date! Again, this goes double for laptop users with broadband.
    3. If you're behind a firewall, and you really should be, Only allow outgoing SMTP from your mail server(this keeps the worm from spreading FROM your organization).
    4. If you think you don't have time to do these things, make time. You'll waste a lot more time putting out fires than you will doing some fireproofing.

    --
    We eat the pig and then together we BURN!!!
  22. Re:Unix History by mblase · · Score: 4, Funny

    I'm sorry, that didn't make any sense at all. Could you please replace your keyboard with one that has periods and commas on it?

  23. Ever get one of these... by Synesthesiatic · · Score: 5, Insightful
    and try to tell your semi-computer-illiterate ("But I know how to use MSN and Kazaa!) friends that they've got a virus? I don't even bother anymore because the only response I ever get is

    "No I don't."

    Because of course they're running anti-virus software. And of course the definitions have never ever been updated.

    These same people decide when their PC is two years old that it's just "too screwed up" and go buy and brand-spanking-new one with the same flaws which they will proceed to bugger up in a month in a half.

    I wouldn't last a week in tech support.

  24. Re:It's a worm - blame the users! by American+AC+in+Paris · · Score: 4, Informative
    Let's not forget that this is a worm. It requires that a user launches the executable so it can infect the system.

    A worm is a program that propagates itself over a network, reproducing itself as it goes. While this worm may require user intervention, there exist plenty of worms that do not (the most infamous being the Morris Worm.) A malicious program that masquerades as a legitimate application is a Trojan horse.

    SoBig.F appears to be a Trojan with some worm-like qualities. Of course, in the world of Microsoft mail exploits, the lines are blurred, but a worm is generally not a user-launched process.

    Pedantic, I know, but worms are a special interest of mine, and they generally take a fair bit more skill to create than your average Trojan horse.

    --

    Obliteracy: Words with explosions

  25. When will you people learn.... by SlashChick · · Score: 5, Insightful

    ...that just because you're not using Outlook or Outlook Express, you still may be vulnerable to worms or email viruses?

    All it takes is one user to click the attachment who has an LDAP-enabled address book of the entire company, and poof! you're screwed.

    The only sensible way to kill these worms is to block them at the mail server. If you block them at the mail server, you don't have to try to train people or keep hundreds of anti-virus clients up-to-date. Do yourself a favor and set up XWall if you have Exchange (this is about the coolest spam-blocker/email filter program I have ever used, BTW) or SpamAssassin/MailScanner if you have Linux/UNIX. This will save you a ton of headaches in the future, and won't require you to worry about hundreds of clients being up-to-date as much as focusing on whether a few email servers are up-to-date. (Block the standard Microsoft "bad executable" list and you should be fine.)

    Seriously, in the year 2003, there's no excuse for "But my 400 clients weren't up-to-date!" Block these things at the server, which is something you as the network administrator should have complete control over, and which is where the worms should have been blocked to begin with.

  26. Why am I dignifying this with a response? by Keith+Russell · · Score: 5, Funny
    Yay for trustworthy computing.

    And in other news... Microsoft announced today that, thanks to a Bill Gates Declaration From On High (tm), every line of code in every Microsoft product, dating back to the company's foundation, has magically, spontaneously, and retroactively fixed itself. This has rendered all of Microsoft's code absolutely secure and error-free. And thanks to the mystical nature of these fixes, end users and sysadmins don't have to patch their systems!

    Grow up, Michael.

    --
    This sig intentionally left blank.
  27. Re:It's a worm - blame the users! by gl4ss · · Score: 5, Insightful

    that's just the thing.

    this like others uses other extension from .exe so the user doesn't except it to be an executable because as you say 'but users are used to the whole 8.3 format where executables end with ".exe"'. some even use holes to hide the payload in files that wouldn't normally have executable code at all.

    showing the mimetypes/what the email reader is going to _do_ with it would be much more useful than just displaying the name of the file and telling the user to click on it.

    they're educated usually alright, mis-educated.

    --
    world was created 5 seconds before this post as it is.
  28. 320 and counting by LetterJ · · Score: 4, Funny

    I've gotten 320 infected messages today. I'm actually going to be looking forward to getting back to generic viagra ads in a couple of days when this dies down.

  29. How is this microsoft's fault? by ad0gg · · Score: 4, Insightful

    Its an executable that requires someone to run it. People need to learn to stop clicking on every damn executable they get in their email. Hell Outlook even displays a warning that attachments can contain virii or have malicous intent, but people still click on them.

    --

    Have you ever been to a turkish prison?

    1. Re:How is this microsoft's fault? by EXTomar · · Score: 5, Insightful

      In their zeal to sell the house, MS gave the keys away.

      No application scripting language should be able to perform in an "untrusted" mode. There is no reason for it but due to functional designs someone at MS came up it has to be there. Someone demanded that Office documents integrate into Outlook seemlessly and this is what you get.

      No one in any Unix environment will believe this message:

      Attached is a perl script with my message in it. Please extract and run it to read it.

      However MS has made a buisness of making people believe using a computer is as easy and as safe as using a toaster. So you get hackers who can apply a little social engineering to cause a disaster chain of events. Users are more than happy to click click click away when instructed.

  30. Procmail Rule by David+D · · Score: 4, Informative

    Here is a decent procmail rule, probably not perfect.

    :0
    * > 100000
    * < 120000
    * ^Content-Type:.*multipart/mixed;
    {
    :0 B hfi
    * ^Please see the attached zip file for details.
    * ^Content-Disposition: attachment;
    * ^Content-Transfer-Encoding: base64
    * 9876543210^1 ^Content-(Type|Disposition):.*$.*name *= *"?(your_details|application|document|screensaver| movie)[0-9]*\.zip"?
    * 9876543210^1 ^Content-(Type|Disposition):.*name *= *"?(your_details|application|document|document_Fal l|thank|screensaver|movie)[0-9]*\.zip"?
    | formail -A "X-Content-Security: [$HOST] NOTIFY"
    -A "X-Content-Security: [$HOST] QUARANTINE"
    -A "X-Content-Security: [$HOST] REPORT: Trapped SoBig worm - http://securityresponse.symantec.com/avcenter/venc /data/w32.sobig.e@mm.html"
    }

  31. Re:Unix History by __past__ · · Score: 4, Informative
    I have no idea what you are trying to say, but this is slashdot, so I'll reply anyway:

    • Microsoft, cooperating with SCO, built the first Unix to run on Intel-compatible processors, called Xenix. That was before Windows. So I doubt that lack of Unix knowledge is a major reason for any of MS's mistakes.
    • Compared to other systems of that time, the Unix security model was (and basically still is) piss-poor. And the implementations in the 80s were buggy as hell. It's just that Unix is way better than all the alternatives today (and there is only one non-Unix system left for most intents and purposes), and a huge amount of post-fact bugfixing and workarounds, that make it look good. In other words, it is true that Unix-like systems tend to be the most secure today, but that in itself is a tragedy.
  32. irony. by twitter · · Score: 5, Insightful
    It's funny how many people post here saying they are imune to the thing, yet everyone is getting them in their mailbox. The web is slow here today and DNS seems shakey. No one is imune to Microsoft polution.

    --

    Friends don't help friends install M$ junk.

  33. old by mz001b · · Score: 5, Funny
    SoBig.F

    Wow, this must be an old virus if it is written in Fortran.