I'm not offended by "them food aid."

Here's a script to send it, replace wendroid@ycombinator.com and mail.anybots.com with your desired target and superman@krypton.pl as your nasty hackar

    echo 'helo ycombinator.com
    MAIL FROM: <superman@krypton.pl>
    RCPT TO: <wendroid@ycombinator.com>
    DATA
    Subject: virus trigger
    To: wendroid@ycombinator.com
    From: superman@krypton.pl
    Content-Type: multipart/mixed; boundary=----------yeODUdrHXSboO0pEkHkAqW
    MIME-Version: 1.0
    Date: Wed, 26 May 2010 17:42:00 +0100

    ------------yeODUdrHXSboO0pEkHkAqW
    Content-Type: text/plain; format=flowed; delsp=yes; charset=iso-8859-15
    Content-Transfer-Encoding: 7bit

    have a virus matey

    ------------yeODUdrHXSboO0pEkHkAqW
    Content-Disposition: attachment; filename=eicar_com.zip
    Content-Type: application/zip; name=eicar_com.zip
    Content-Transfer-Encoding: Base64

    UEsDBAoAAAAAAOCYuCg8z1FoRAAAAEQAAAAJAAAAZWljYXIuY29tWDVPIVAlQEFQ
    WzRcUFpYNTQoUF4pN0NDKTd9JEVJQ0FSLVNUQU5EQVJELUFOVElWSVJVUy1URVNU
    LUZJTEUhJEgrSCpQSwECFAAKAAAAAADgmLgoPM9RaEQAAABEAAAACQAAAAAAAAAB
    ACAA/4EAAAAAZWljYXIuY29tUEsFBgAAAAABAAEANwAAAGsAAAAAAA==

    ------------yeODUdrHXSboO0pEkHkAqW--
    .' | nc  mail.anybots.com 25 # ycombinator.com's mx

and while we're here, let's send some certified SPAM

    echo 'MAIL FROM: <superman@krypton.pl>
    RCPT TO: <wendroid@ycombinator.com>
    DATA
    Subject: spam trigger
    To: wendroid@ycombinator.com
    From: superman@krypton.pl
    Date: Wed, 26 May 2010 17:42:00 +0100
    
    some spam

    XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X

    .' | nc  mail.anybots.com 25 # ycombinator.com's mx

As a vegan I've often banged on about how I prefer meat eaters to milk drinkers.

Murder over torture

How many people eat meat but don't consume milk in some form, whether that be directly or through cheese, ice cream, butter, etc? I'm guessing its a pretty small number.

turn the router off, or get one of those timer switches for $5 or put this in /etc/crontab

It checks every minute so you still have a window :)

    */1 0 * * * root ifconfig en0 down
    */1 1 * * * root ifconfig en0 down
    */1 2 * * * root ifconfig en0 down
    */1 3 * * * root ifconfig en0 down
    */1 4 * * * root ifconfig en0 down
    */1 5 * * * root ifconfig en0 down
    */1 6 * * * root ifconfig en0 down
    */1 7 * * * root ifconfig en0 down
    */1 8 * * * root ifconfig en0 down
    */1 9 * * * root ifconfig en0 up
    */1 10 * * * root ifconfig en0 up
    */1 11 * * * root ifconfig en0 up
    */1 12 * * * root ifconfig en0 up
    */1 13 * * * root ifconfig en0 up
    */1 14 * * * root ifconfig en0 up
    */1 15 * * * root ifconfig en0 up
    */1 16 * * * root ifconfig en0 up
    */1 17 * * * root ifconfig en0 up
    */1 18 * * * root ifconfig en0 up
    */1 19 * * * root ifconfig en0 up
    */1 20 * * * root ifconfig en0 down
    */1 21 * * * root ifconfig en0 down
    */1 22 * * * root ifconfig en0 down
    */1 23 * * * root ifconfig en0 down

Thanks, I will probably use this as I don't want to limit access for other computers.

check that your interface is actually en0 by typing : ifconfig

of course you'll also lose all network, not just the internet

I suppose the other way is changing /etc/resolv.conf from

    nameserver 8.8.8.8

to

    nameserver 127.0.0.1

8.8.8.8 is google's speedy dns

I integrated and adminsiter a postfix / sa / clamd / courier system for about 10,000 domains (6 identical blades with local storage for the queues and Global File System GFS once they've been accepted).

SA gets about 95% accuracy on our system even at 5.0

I can also recommend enabling SPF and DKIM see http://www.openspf.org/ Wave bye bye to emails pretending to be sent from yourself to yourself or those annoying "your settings have changed, open this zip file" mails.

Thanks Simon, but I'll use Russ Cox's (co-author of Go)

http://swtch.com/libtask/

Was the first thing I got sent this morning.

You've got to be pretty stupid to do this :

    S: any RFIDs around with code for me to execute
    C: sure, here's some 0x1fab214bab3421baeb3f2d287d20d8297d2
    S: Thank yo ... Connection reset by peer

Don't run this, just put it in a .txt file and run a virus scanner on it:

  X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

OK, it's actually harmless, but it's the only pure-ASCII executable I've ever seen, which is pretty cool.

see also http://news.ycombinator.com/item?id=1381127

I think http://mirror.href.com/thestarman/asm/eicar/eicarcom.html is a better link for that

Interesting read but

> That it be a normal DOS program capable of producing the same results under WINDOWS as well as real DOS mode.

so it's pretty useless to me

I'm not so sure about that. All you need is a bit of buffer overrun, reflection, or poor escaping mechanisms - and none of those are exactly rare.

Here's a 2006 article on RFID+buffer overflow tat wikipedia pointed me at: http://arstechnica.com/old/content/2006/03/6386.ars

That's $4.40 a gram, £3. Street price here starts about £5

It was ~10 euro/gram in a couple coffee shops in Amsterdam when I visited recently.

Well, you know what they say about markup in the food industry.

Don't forget that's wholesale price. Retail prices will obviously be higher.