Monday, August 4, 2014

Fraudulent Emails continue to plague PLU Community (or "What exactly is a Phishing email?")

Good Morning!

As many of you probably saw this weekend, yet another round of fraudulent "phishing" emails have been sent across Campus masquerading as an official email warning users that their accounts are about to be shut down due to exceeding their storage limit.  While it may be easy for many of us to write these off as non-sense, the newest batches have become progressively more convincing to the point that even seasoned users would require a bit of research to determine their authenticity.  

From a purely technical standpoint,
this fake email is a thing of beauty

As we have noted multiple times during these campaigns, the Help Desk will never solicit your account information like this.  All of our account work is done via our ePass website [epass.plu.edu], and we will not intentionally put your account into a position where it cannot be recovered.

Given how these emails continue to grow in their elaborateness, we felt it would be appropriate to do a more extended write up with a small FAQ to help better inform the PLU community about these phishing emails.


Summary:

  • PLU (I&TS) will never solicit your account information via email
  • If you ever have even the slightest inkling that an email might be fraudulent, do not do anything with it and call the Help Desk at 253-535-7525
  • If you have clicked on any links in these emails or responded to them, call the Help Desk at 253-535-7525
  • We post up-to-date information on the phishing emails going around on our Twitter @PLUHelpDesk
  • This phishing campaign has been attacking users for ~5 months, taking over PLU accounts and sending more phishing emails from PLU accounts
  • They often include PLU logos to mimic official PLU emails and claim to be from the non-existent PLU Webmail Management Team
It is imperative that we let as many people know about the existence of these fraudulent emails; the more people know, the less likely they are to actually respond to them.  I&TS has been using the Help Desk Twitter @PLUHelpDesk to notify users about the phishing emails, but we would love to know your preferred method of communication!  If you can think of a means of communication you'd prefer we use, let us know, and we will do our best to oblige.





FAQ:

Q: What exactly is a phishing email?
A:  A phishing email is basically an email meant to trick users into revealing sensitive information, "baiting" them into giving out private info such as passwords, credit card information, etc.

Typically, a phishing email will masquerade as coming from an official source, often claiming to either have important information for the user or claiming that their "account will be terminated" if the user doesn't give out their password information.

Unfortunately, methods will vary from phishing email to phishing email.

Q: How can I tell if an email is a phishing email?
A: Most phishing emails are plagued with:
  • Spelling errors
  • Grammatical mistakes
  • Strange use of punctuation
  • Bits of "code" showing in the email
  • Vague claims or threats towards your account
  •  Inconsistent or incorrect information about the account system
In the most recent instances, however, the phishers have gotten really fancy and upped the ante.  These most recent emails appear to be very real, as they include the PLU logo, are fairly free of any spelling or grammar mistakes, and even include our actual address!  (That was particularly surprising)

The only give-away on this wave of phishing emails was that the process for updating account info was completely wrong (we do everything through epass.plu.edu), and that we would never shut down your account in this fashion.  Also, we don't have a Webmail Management Team, and nothing would come up if you searched it.

These phishing emails were so well crafted, the only thing "wrong" about them was that they didn't send you to our actual epass.plu.edu page, which was done by design.  

Q: Why is this still happening months after the initial email?  Can't these emails be stopped?
A:  The way this particular phishing campaign is working is to send out as many emails as possible to PLU emails, collect a few accounts, sit on these accounts for a bit while sending out more emails, and continue to collect more accounts.  Every time the attackers get another account, they can send out hundreds of emails; if even one person responds, that's another account and another couple hundred emails.

It's a vicious cycle that we can only break by educating users about the existence of these emails.  While we do our best to shut down the accounts as soon as we receive a report, usually we don't get a report until after a few minutes of sending, which can be hundreds of emails by that point. 

We are considering other alternatives system side, but we need to be vary careful about such alterations as they can affect the receiving of legitimate emails as well. 

Q: What do the attackers have to gain by doing this?
A:  Just more sources to spam people with.  Once the spammers have a sufficient number of accounts stocked up, they can start sending out spam emails to other people.  Often times we will cleanse an account and find that it has been altered to look like a bank or a school or a credit union.

Q: What should I do if I have responded to one of these emails?
A:  Change your password immediate by going to epass.plu.edu [epass.plu.edu] and call the Help Desk at 253-535-7525.  We will need to walk you through cleaning your account to ensure that no one else has access.

Q:  Is there anything I can do to help combat these emails?
A:  Yes!  Continue to report them to us every time you get one.  It may seem futile or redundant, but the sooner we know about a new wave, the sooner we can take action.

Tell your colleagues and friends about the phishing emails and about how they can learn more about them (@PLUHelpDesk); the more people that know, the better chance we have that the phishing waves will be ineffective. 




Friday, January 3, 2014

Router Backdoors found in tons of router models...but not a big deal for most people

Source(s):
http://arstechnica.com/security/2014/01/backdoor-in-wireless-dsl-routers-lets-attacker-reset-router-get-admin/
https://github.com/elvanderb/TCP-32764/blob/master/README.md  (List of known affected routers)

Summary:

For the non-technically inclined, let's define a few terms for this article/post.  A backdoor, in computing terms, specifically refers to a means to control a device remotely via a hidden access.  You can think of it like a secret way into a device in order to control it; these backdoors often have very little or no verification, and will accept any command sent to them without question. 

The discoverer of the backdoor, , was focusing on trying to get back into his own router, which he forgot the password to.  In doing so, he found some really strange activity on his router, which upon further investigation revealed the backdoor.  Being a bit of a programmer, he explored the backdoor as best he could and was able to map out many of the controls it allowed.  He published his results in a rather humorous powerpoint presentation (1.9 MB ppt download, some not safe for work language), and many other users tested his program and found quite a few other routers that had the same backdoor.

So, is your own router at risk and should you worry? 

Yes, and No.  

See, the backdoor is pretty specific, and it looks to require that you actually be on the network to pull it off.  Even if you were able to plug the backdoor (which you can't really), the likelihood of someone using this method to gain access to your router is pretty low.  The second link has a list of known affected routers; if you use one of these for your business, there may be some cause for concern, but again, this is a fairly isolated method of attacking a router.

What this does bring up are some interesting questions as to why such a backdoor exists; all routers have a physical switch on them to allow a factory restore, so end users have no use for such an interface, and technicians would likely use this as well instead of using the rather esoteric interface.  This is definitely an issue which warrants further discussion and investigation, but most home users should be able to continue using their routers as they have been without additional worry.