How to delete recurring cookie in Safari?

Question

I try do delete cookies in Safari 5.1.7 with settings to "Block from 3rd parties and avertizers". Most cookies can be deleted, but there is one named 194] that I delete and 2 seconds later it reappears in the cookies list. I tried to search the mac for 194] but nothing comes up.
Any suggestions how to get rid of 194] for good?

Answer 1

Here is a hosts editing method which should work with all versions of OS X. Read the notes below before you start.
Open Terminal - in Utilities folder
Paste the following and then hit <return>: sudo nano /private/etc/hosts
Enter password when asked and hit <return>
Use arrow keys to go to a new line at end of text - note 1
Type: 127.0.0.1<tab>silly-site.com<return>
Type: <control>O
Type: <return>
Type: <control>X
Restart and test
Notes:
IMPORTANT - do not delete any original lines at the top of the file
Items within angle brackets are single key presses
Use letter O at line 7
This works by directing eg silly-site.com to your Mac at 127.0.0.1
Get precise site URL from eg your cookies preferences
Add as many lines as you wish to disable access to sites
This should be faster than any other method
Take care - mistakes could disable all communications
Replacing original lines should correct any mistakes