In Getting Through Filters, Spammers Forget The Real Goal
from the who's-gonna-read-that-crap? dept
Spammers spend an awful lot of time trying to figure out tricks for getting their messages through spam filters, and one popular technique is to add all sorts of junk between letters within words, so simple word-based filters won’t stop the spam. However, as this article points out, there’s one fatal flaw in that plan: once it gets past the spam filters why would any human open it up? At least that’s the theory of the person who wrote the article, but there are at least two answers to that question. First, the spammers are less concerned about conversion rates than how many messages they get out there (they often charge on the size of their list and not the conversion rates). That may be short-sighted long term (if there’s low conversion rates, the companies that hire them won’t do so again), but spammers aren’t known for being the most long-term strategic thinkers. Second, there really are enough gullible people out there who don’t think anything is odd about opening, reading and responding to an email with the subject: “C;ome v;isit o,ur do-ctors v^aek?” Besides, in sorting through my own spam pile, this tactic is a pretty old one, and it appears more spammers these days are doing everything possible to make their spam look like normal mail. So, clearly, some are still doing their best to get people to open the messages.
Comments on “In Getting Through Filters, Spammers Forget The Real Goal”
No Subject Given
Recently I’ve been getting spam that doesn’t have any body — just a header. No funny header lines. Some of them may just be trolling to see if recipients are gullible enough to reply, but some don’t even have valid domain names (no A or MX record) in the “From:” field, so the reply won’t go anywhere. Since the email has no body, there isn’t even any web site to lure people to. Any idea what these are all about?
Re: No Subject Given
I received a similar strange one today. It was from verify@testmail.com. The subject and body both had the word “Hi”. The body was text, not html, so there weren’t any web bugs. Maybe they are just looking for addresses that don’t bounce.
Filter anyhow!
For webmasters and such, make a script that reads a mailbox, deletes all non-alphanumeric data from subject en body, en THEN checks on spammy words such as viagra, quick rich, money, …
If present, delete mail from mailbox.
Now, put this script on the server and let it run every minute.
Kills 95% of the encrypted spam!