How not to try and foil spam detectors

Senders of email spam keep working on ways to have their spam messages pass through spam filters. The idea being, naturally, that a spam that got caught before someone reads it will never generate revenues.

And sadly enough spam that does gets read by real people sometimes does generate revenue. That is why they still keep sending them.

But there are two important things for the spammers to to do there.

  1. As I mentioned, they need to try and make it hard to automatically flag the message as spam. That way the message may pass on to the recipient, who may actually read it.
  2. The spam message has to be readable to the person receiving it. Otherwise there is also no way to get money out of it, so why bother sending the message in the first place?

Sometimes, however, they get too creative. So much that the message is almost entirely unreadable to a person.

For example, an excerpt from a “stocks” spam message I received recently:

C,Y’T'V con’tinu+es i-t_s stead-y cl.imb f_o-r t’h-e s econd w_eek. S,tock re,porti-ng site-s acros_s t*h-e boar,d a-r,e issuin+g
sto*ck watc’h notic._es. R’e*a_d t-h’e ne’ws, l.o,o*k at t-h e numbe-r.s, a.n.d g+e t on C.Y_T’V as it kee ps i,t-s clim-b going .
Busines*s NewsNow h.a,s re.l’eased C,Y*T+V as feature.*d Sto,ckWa’tch.

It’s readable, barely, but you have to really try.

When someone opens a message which is just full of text like that, the first reaction is that it’s total gibberish, and people would erase it without even trying to read it.

Amusingly enough, this did not pose any problem for the spam filters, which caught it easily. I found it going through the spam folder, not my inbox.

The poor[1] spammer got it all wrong.

---
  1. Sadly enough that’s probably not a financial statement. Nor does it express genuine sympathy on my part[back]

Leave a Reply

You must be logged in to post a comment.