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Archive for November, 2011

2011 – The year of spear phishing And spear phishing

Thursday, November 17th, 2011
spearphish vs spearphish

spear phish vs. spear phish

An odd title for a blog post but something that has been on my mind for a while now. We get a fair amount media requests for comments or perspective on phishing stories.  This is a good thing. It’s nice to have recognition in your field. Of course 2011 was no shortage of phishing related news. (What’s up RSA, I’m looking at you. I’ve noticed you frequent our website a lot. How about a demo. Couldn’t hurt?)

In 2011, the term “spear-phishing” shifted gears a bit. Once reserved to define highly targeted and personalized  email attacks against organizations, the taxonomy of phishing is changing again.  The term spear-phishing being applied to consumer/fraud/ based phishing.

First, some of the defacto high profile spear-phishing events in 2011:

But something new has been brewing. Massive data breaches of big consumer organizations with millions of users became more common place. It first started with the Epsilon compromise, then we had Sony, and now the Steam breach putting 35 million gamers at risk.

As the trade journalists made the rounds, the security experts commenting talked about how these data breaches will lead to more spear-phishing incidents of consumers. What they mean by that is instead of the consumer Bob receiving a generic phish:

“Dear Citibank Member,
There is something wrong with your account. Please read the attached statement to verify charges.”

Attackers can now cobble a bit of personal information into the phishing email to make the bait look more believable: (See Pretexting: Wikipedia )

“Dear Bob Dobolina,
I ran into a mutual friend of ours in Charleston SC,. He said you were into video games. Check this out …..”

Ok, I’ll tip my hat to the use of some personalized information somewhat resembling what we’ve been calling a spear phish.  But this is in no way resembles the effort and sophistication used by advanced threats against our most trusted institutions.  They are facing attackers armed with department names, locations, org charts, contract names,  names of sub-contractors, and whatever else they can scrape together to increase the chances of a successful mission.

I chose the word mission for a reason. The  first of its kind DARPA meeting last week a stone’s throw away from the PhishMe offices started to cast light in not-so-vague terms about what organizations have been dealing with for quite some time.

Spear Phishing v.s Spear Phishing. There is a difference.

 

Aaron Higbee

 

 

p.s. Don’t even get me started on whaling.

 

Spear Phishing with Password Protected Zip Files

Tuesday, November 1st, 2011
The Slashdot headline this morning reads: Spear Phishing Campaign Hits Dozens of Chemical, Defense Firms

What is it about? Simple, the poison ivy trojan wrapped in a password protected ZIP file so it can get past filtering.  Symantec has an excellent analysis of these attacks in a paper titled: The Nitro Attacks: Stealing Secrets from the Chemical Industry by Eric Chien and Gavin O’Gorman.  You can read the entire paper here.

The most recent attacks focusing on the chemical industry are using password-protected 7zip files which, when extracted, contain a self-extracting executable. The password to extract the 7zip file is included in the email. This extra stage is used to prevent automated systems from extracting the self-extracting archive.”

Packing malicious code into ZIP file and including the password in the body of the email is fairly common spear phishing technique that has been going on for quite some time.  In fact, we have specific training about this tactic available at PhishMe. Here is a small snip from our training about password protected ZIP files:

Malware in password protected zip file
By now you may be aware of spear-phishing emails that contain malicious attachments.  We have technology in place that scans email looking for malicious attachments, but it’s not foolproof.  In this cat-and-mouse game, the bad guys are always looking for new ways to get past our safeguards.
  
Regula
One technique they use is placing the malicious attachment inside of a password protected ZIP file. It works like this:  the attacker zips the malicious file, then puts the password for the ZIP file in the body of the email. They do this because they know our email security tools can’t see what is inside the protected ZIP file.
 
Existing PhishMe customers:  If you haven’t gotten the message out to your people about spear phishing using password protected ZIP files, login to you account and check it out.
 

Future customers:  You could be using our award winning solution right now to train people about this exact tactic.

stay safe,

Aaron Higbee