Terry Zink's Cyber Security Blog

Discussing Internet security in (mostly) plain English

February, 2009

  • Terry Zink's Cyber Security Blog

    Distribution of spam origins

    • 2 Comments
    The other day, I stumbled across a handy-dandy table on the Internet somewhere that has a list of IP ranges and the country that they are reserved for.  Just for fun, I wrote a script that lets me enter in an IP and then the country where it is assigned...
  • Terry Zink's Cyber Security Blog

    Proud of my spam team

    • 3 Comments
    Regular expressions are a tricky thing to pick up.  The ability to write them well is a skill that takes a while to develop. We recently hired a bunch of people in, oh, let's say London.  They were visiting here for a while learning the system...
  • Terry Zink's Cyber Security Blog

    Spam filters and foreign spam, part 2 - Collisions

    • 2 Comments
    Note: this post contains some explicit language relating to stuff commonly found in spam. One of the very basic ways of fighting spam is with content filtering. At a basic level, you look in the content of an email searching for words, patterns and phrases...
  • Terry Zink's Cyber Security Blog

    KnujOn's list of top ten friendly spam registrars

    • 3 Comments
    Spam Fighting organization KnujOn (pronounced new-jon, or No Junk backwards) is a small company dedicated to going after and exposing spam friendly registrars. When you're a spammer and you need to register a new domain, you go to a registrar.  GoDaddy...
  • Terry Zink's Cyber Security Blog

    Spam, not SPAM

    • 1 Comments
    Ever since I started working as a spam analyst, there has been an abundance of people that I know that write the word as "SPAM" instead of "spam."  At first I thought that it was simply annoying.  Now, I know that it is technically...
  • Terry Zink's Cyber Security Blog

    Invented a new game this week

    • 5 Comments
    This past week, I invented a new game at the office, and I also play it at home.  Don't laugh when you read this, it's great for increasing your concentration and manual dexterity.  It's called "How many cards can you toss into a basket...
  • Terry Zink's Cyber Security Blog

    I need to talk to the spell check guys

    • 2 Comments
    We all know about Microsoft's automatic spell check feature.  It's that handy-dandy feature that converts things like teh to the .  In other words, it finds common misspellings of words that occur frequently in the English language, usually...
  • Terry Zink's Cyber Security Blog

    Spam filters and foreign spam - part 1

    • 1 Comments
    One of the ideas for a series that has been floating about in my head for a long time is the idea of fighting spam in foreign languages. Now, while I am fluent in over six million forms of communication, unfortunately, the foreign languages common to...
  • Terry Zink's Cyber Security Blog

    What am I seeing today in my spam folder?

    • 1 Comments
    As someone who fights spam, as opposed to the rest of the population, I am actually interested in seeing the type of spam that gets to my junk mail folder.  From time to time I will go through it and say "Hmm, which of our spam rules blocked...
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