Language:
SEARCH

spam

What is the junk e-mail folder?

Tuesday, February 28th, 2017

Just before the weekend, we became aware of a particularly intrusive and persistent phishing attack. An e-mail, seemingly from Standard Bank, was distributed from a staff member’s e-mail account after being hacked.

In order to prevent the attack from causing more damage to other e-mail users, stricter spam filter measures had to be implemented over the weekend. After this time period, the filter was reset to its default.

These measures caused some e-mails that weren’t spam, to divert to Outlook’s Junk Mail folder. They were not deleted, but they weren’t visible in inboxes.

Even though it is advisable that you occasionally check your Junk mail folder, it seems some staff aren’t familiar with the folder or it’s function.

The Microsoft Outlook Junk E-mail Filter helps reduce unwanted email messages in your Inbox. Junk e-mail, also known as spam, is moved by the filter away to the Junk E-mail folder.

How the Junk E-mail filter works

The Junk E-mail Filter evaluates each incoming message to assess whether it might be spam, based on several factors. These can include the time when the message was sent and the content of the message. By default, the Junk E-mail Filter is turned on and the protection level is set to Low. This level catches only the most obvious spam. You can make the filter more aggressive by changing the level of protection that it provides.

You can adjust the Junk E-mail Filter settings in the Junk E-mail Options dialogue box.

  • On the Home tab, in the Delete group, click Junk, and then click Junk E-mail Options.

Any message that is suspected to be junk is moved to the Junk E-mail folder. We recommend that you periodically review the messages in the Junk E-mail folder to check for legitimate messages that were incorrectly classified as junk. If you find a message that isn’t junk, drag them back to the Inbox or to any folder. You can also mark the item as not junk by doing the following:

  • On the Home tab, in the Delete group, click Junk, and then click Not Junk.

More detailed instructions can be found on the Office365 Knowledgebase and on Microsoft’s website.

We apologise for the inconvenience and confusion caused by these emergency measures. If you have any questions, please contact the IT Service Desk at 021 808 4367 or help@sun.ac.za.

 

Latest WhatsApp hoax

Monday, January 9th, 2017

If you are a user of the popular chat app WhatsApp, you should be aware of the latest hoax that states that the chat service will soon start charging a fee.

Here is an example of the current hoax:

Tomorrow at 6 pm they are ending WhatsApp and you have to pay to open it, this is by law. 

This message is to inform all of our users, our servers have recently been very congested, so we are asking you to help us solve this problem. We require our active users to forward this message to each of the people in their contact list to confirm our active users using WhatsApp. 

If you do not send this message to all your contacts WhatsApp will start to charge you. 

The message is allegedly sent from Whatsapp’s chief executive officer – Jim Balsamic.

  1. The real CEO of WhatsApp is Jan Koum.
  2. WhatsApp publically declared that they’ll never charge users for the service. [ https://blog.whatsapp.com/615/Making-WhatsApp-free-and-more-useful ]

This isn’t the first time this sort of hoax has plagued the web – a similar message was sent around in 2013.

In some cases, it was reported that victims of this hoax were “tricked” into opening a legitimate-looking Word, Excel or PDF document attached to a WhatsApp message. The PDF attachment then downloaded malware to devices to steal personal information.

Another student reported that one message they received tried to persuade them to download a R200 Edgars voucher. In reality, the link simply installed cookies and a browser extension on their phone that flooded the phone with adverts.

Always be wary of messages with the following characteristics:

  1. The person sending the message claims to be associated with WhatsApp.
  2. The message contains instructions telling you to forward the message. (Use a bit of common sense here. According to this hoax message, WhatsApp servers are “very congested” and Jim Balsamic want you to add to the congestion by forwarding the message to all your WhatsApp contacts?)
  3. The message says you will suffer some sort of punishment, like account suspension, if you don’t follow the instructions.
  4. The message promises a reward or gift from Whatsapp or another party.
  5. Just because a message was forwarded to you by a friend or family member, doesn’t make it legitimate. (friends and family can be just as gullible as any other person)

[ARTICLE BY DAVID WILES]

Scam warning: UPS Parcel Receipt with infected attachment

Wednesday, November 30th, 2016

The holiday season is upon us and there is a lot of activity around this time of the year with parcels being delivered both at home and at the university. This is being exploited by the scammers.

There is currently a UPS scam making its rounds in university mailboxes, where victims are lured into clicking a download link.

If you have received a package via the parcel company like UPS or DHL, you might be tempted open up an e-mail that seems to come from them, saying they have a package for you. There might be an attachment that you are asked to open to confirm your address or to fill in your personal details for “verification”.

The whole thing is a scam. Clicking on the attachment will download a Trojan virus onto your computer which will just sit there doing its nefarious work — reading your files, including confidential information, then transmitting the details to a server somewhere that is controlled by the criminals.

It seems there are two main variations of this “parcel delivery” scam – both looking like a genuine notification.

  • The first one tells you the parcel service tried, but was unable to deliver a package to you because of an incorrect address. The subject heading usually has a phony tracking number. The attachment is supposedly a copy of a waybill or invoice for you to print and use to collect the parcel from a UPS office.
  • The second is a customs notification and may even seem to come from “US Customs Service” rather than UPS. It says you have an international package (usually from Europe) and that you need to complete the attached customs form so it can be delivered.

In both these cases, the attachment is a compressed ZIP file (that is, one with a name that ends in “.zip”), even though the icon may look like a Word document. As soon as you double click on it, it will install a program onto your computer will then download and install several files on your system. These may disable your firewall, look for and steal credit card and bank account details, make screen snapshots and allow hackers full access to your machine.

This attack underlines the danger of opening an attached file in an email, even if it appears to come from a person or organization you know or frequently deal with.

Here is an example of one such mail.

 


 

From: Usps Parcel [mailto:shipment@uspc.com]

Sent: 28 November 2016 07:29 AM

To: Recipients <shipment@uspc.com>

Subject: Parcel Receipt

 

USPS Shipment Notification

A parcel was sent to our office for you and we have tried to deliver it several times to your address on file.

Attached is the receipt via Dropbox, used in sending you the parcel. We advise you DOWNLOAD the document and reconfirm the address on receipt if its your valid address.

For further assistance, please call USPS Customer Service.

For International Customer Service, please use official USPS site.

 

Copyright © 2016 USPS. All Rights Reserved.

This message has been scanned for viruses and dangerous content by Fair Distribution MailScanner, and is believed to be clean. 

 


So do not succumb to the temptation of opening up attachments in emails, especially if it comes from couriers and parcel delivery companies like UPS or DHL. It is the end of the year. Our energy and concentration is ebbing and we are all more vulnerable, making us all potential targets of the cyber-criminal.

[ARTICLE BY DAVID WILES]

Whatsapp scams

Wednesday, November 23rd, 2016

WhatsApp is a popular communication tool, used by students and personnel every day. On the downside, it provides cyber criminals with another way to convince you to part with your well-earned money and unfortunately it’s usually quite convincing.

WhatsApp scams come in many different forms and are often very convincing. Just make sure that you stay vigilant and don’t fall for anything that seems too good or too worrying to be true. Just because a friend or a family member sends you something, it doesn’t mean that it is safe.

Voucher scams

A message arrives in your WhatsApp from someone who looks like your friend, recommending a deal they’ve found. The messages usually come with a link that actually takes you to another website and tricks you into giving your personal information. Don’t ever click a link you’re not sure of and certainly don’t ever hand over personal information to a website you haven’t checked.

WhatsApp shutting down

There are many fake messages claiming that WhatsApp is going to end unless enough people share a certain message. The messages often look convincing, claiming to come from the CEO or another official. They’re written using the right words and phrases and look like an official statement. Any official statement wouldn’t need users to send it to everyone like a round robin. You would either see it in the news or it’ll come up as a proper notification in the app from the actual WhatsApp team.

WhatsApp threatening to shut down your account

This is very similar to the previous scam. It looks like an official message that claims that people’s WhatsApp accounts are being shut down for being inactive. Sending the message on will prove that it’s actually being used and often instructs people to pass it along.

WhatsApp forcing you to pay

Similar to the previous scam, with the only difference being that the message supposedly exempts you from having to pay for your account – if you send it on to other people.

WhatsApp Gold or WhatsApp Premium

The claim suggests that people pay for or download a special version of WhatsApp, usually called Gold or Premium. It offers a range of exciting-sounding features, like the ability to send more pictures, use new emoji or add extra security features. The problem is that it is far from secure. Downloading the app infects people’s phones with malware that use the phone to send more fake messages at the cost of the original victim.

Emails from WhatsApp

Spam e-mails are bad enough. E-mails plus WhatsApp is even worse. There’s a range of scams out there that send people e-mails that look like they’ve come from WhatsApp, usually looking like a notification for a missed voice call or voicemail. But when you click through, you will end up getting tricked into giving over your information, passphrases etc. Don’t ever click on an e-mail from a questionable sender. WhatsApp doesn’t send you e-mails including information about missed calls or voicemails.

Fake WhatsApp spying apps

Currently, it is not possible to let people spy on other’s conversations on WhatsApp, because it has end-to-end encryption enabled, which ensures that messages can only be read by the phones that send and receive them. These scam apps encourage people to download something that isn’t actually real and force people to pay money for malware, or actually read your chats once they’ve got onto your phone.

Lastly – 

Hopefully, you have  already blocked sharing your WhatsApp details with Facebook (telephone number, name etc. and allowing Facebook to suggest phone contacts as friends) and Facebook will not be able to  make your WhatsApp account accessible to the 13 million South African Facebook users.

There are some details about this controversial policy change by WhatsApp on the following page: http://www.mirror.co.uk/tech/you-can-stop-whatsapp-sharing-8893949

 

[ARTICLE BY DAVID WILES]

 

 

How to recognise a phishing e-mail

Wednesday, October 12th, 2016

We can’t warn you against every phishing e-mail– there’s a new variation every day. You are the only person who can protect yourself from phishing scams and identity theft. The only way to do this is to learn to recognise a harmful e-mail by paying attention and keeping an eye out for a few tell-tale signs.

phishme_how_to_spot_a_phishTypical characteristics

1. Well-known companies used as bait
These e-mails are sent out to thousands of different e-mail addresses and often the person sending them has no idea who you are. If you have no affiliation with the company the e-mail address is supposedly coming from, it’s fake. For example, if the e-mail is sent by ABSA, but you are a Standard Bank client. Also, see a list of types of companies generally used in phishing e-mails below.

2. Spelling and grammar
Improper spelling and grammar is a dead giveaway. Look for obvious errors. 

3. Lack of client information
Phishers use a generic greeting. For example, the e-mail greets you as “ABSA customer” or “Dear user”, etc. If the company was sending you information regarding your faulty account, they would mention your account details or name in the e-mail.  A company would go through the trouble to address a client by name and won’t ask you for your information. Banks have your information on their system.

4. Deadlines/Sense of urgency
Phishing e-mails demand an immediate response or stipulate a specific deadline, creating a sense of urgency and prompting you to respond before you’ve looked at the e-mail properly. For example,  demanding that you log in and change your account information within 24 hours or your account will be closed.

5. Malicious links
Although many phishing e-mails are getting better at hiding the true URL you are visiting, often these e-mails will show a URL that is unrelated to the company. Move your mouse over the link and look at the display address. Is this the website address of the company who seems to be sending the e-mail? If not, it’s clearly a phishing e-mail.

6. Attachments
Phishing e-mails occasionally include an attachment which contains malware. When opened, it will run and install a small programme on your PC, which hackers use to gain access to your PC and information. 

Typical phishing topics

• Account issues, such as accounts or passwords expiring, accounts being hacked, out-of-date accounts, or account information has to be changed.
• Credit cards expiring or being stolen, a duplicate credit card, credit card transactions, etc. 
• Confirming orders, requesting that you log in to confirm recent orders or transactions before a delivery can be made.
• Winning a prize or getting something for free. Both Woolworths and Pick ‘n Pay’s have been used in fake campaigns to lure people into providing personal details.

Company names phishers generally use

• Any major bank. ABSA and Standard Bank are both popular choices in South Africa.
• Insurance companies, for example, Outsurance.
• Internet service providers
Apple or Microsoft claiming your account has been suspended.
• E-mail providers, e.g. Gmail or Yahoo
• SARS. Especially at this time of year. (We’ve had a few of these.)
DHL or any delivery company claiming they have a package for you.
• Your company’s medical aid, for example, Discovery
• Your company’s IT department
• Casinos and lotteries
• Online dating websites
• Popular websites such as Amazon, Facebook, MySpace, PayPal, eBay, Microsoft, Apple, Hotmail, YouTube, etc.

A few tips to keep you safe

Never follow links in an e-mail you’re uncertain of. Rather visit the page by typing the address of the company in your browser. For example,  instead of clicking on the “ABSA URL” in the e-mail, type http://www.absa.co.za in your web browser and log in at their official website.
Never send personal information by e-mail. If a company is asking for your personal account information or claiming your account is invalid, visit the website and log in to the account as you normally would. If everything seems in order and there aren’t any urgent notifications from your bank, you should be fine.
• If you are still not sure about the status of your account or are concerned about your personal information, contact the company directly, either through an e-mail address provided on their website, over the phone or visit your local branch.
• Delete the e-mail and don’t click on links or fill in any information.
• If you’ve already divulged your information, immediately change your password or PIN and contact the institution to inform them of the breach.
• To report spam or phishing e-mails send an e-mail to sysadm@sun.ac.za with the subject SPAM with the suspect e-mail attached. IT system administrators will then be able to block the e-mail to protect other users.

[SOURCE: www.computerhope.com]

 

© 2013-2017 Disclaimer: The views and opinions expressed in this page are strictly those of the page author(s) and content contributor(s). The contents of this page have not been reviewed or approved by Stellenbosch University.