Showing posts with label attachment. Show all posts
Showing posts with label attachment. Show all posts
Monday, April 6, 2020
Amazon Prime member? WARNING!
I have an Amazon account AND an Amazon Prime membership.
I received an email and I want to show it in a screen shot:
On first glance nothing really alarming, right?
BUT:
The sender email address (labeled From:) looks to me totally wacky and the Reply-To address (labeled To:) IMHO is equally unlikely.
The warning bells in my mind started to ring loud and clear.
My wife and I use the same Amazon account all the time and thus I know that the payment method is correct and that it works.
Even saving the attached PDF document to my computer and then scanning it with Malwarebytes did not show any alarms or warnings.
So I opened the file in my PDF reader to check it out in more detail.
The PDF document contains a link and a BIG button to supposedly go to Amazon's account and payment method web page.
BUT this is what the link and the button actually would have sent my web browser to:
https://t.umblr.com/redirect?z=https%3A%2F%2Fam1zn-updtaeinfmtaonsupdtee-verifyconfimationss76757855.com%2F%3Fsigninn-&t=NmVmZTU1YjdlNTBkODkzYjc0NTg1NzM0MTI2YWNhNWJkOGNiZGRjZSxjYTVkNGQyNzY5ZjI4OGQ2OGFiZjQ2ZDJmOTg3NjZlMTZkNTI5M2Y3
What a crazy nightmare - and for me a clear indicator that something was VERY WRONG!
I went to Amazon.com and checked in my account settings and voila, my Prime membership is paid for until September and the payment information is correct.
Naturally I will report this to Amazon.
MY conclusion as far it concerns you?
Be super vigilant, never trust an email and do NOT be complacent!
Yes, IMHO it is complacent to "just click" on the big button or the link in the PDF file rather than verifying the claim made in the PDF file independent of the email and it's attachment!
Stay safe, stay vigilant and pay attention to the details!
Tuesday, March 29, 2016
Avoid or Mitigate Ransomware Risks
A big THANK YOU to the Emerging Threats Team at SophosLabs and their blog Naked Security for their excellent recommendations on this nasty but important topic.
I have taken the liberty to add some remarks just to help you remember important little details that are easy to forget in cursive.
- Backup regularly and keep a recent backup copy off-site.
There are dozens of ways other than ransomware that files can suddenly
vanish, such as fire, flood, theft, a dropped laptop or even an
accidental delete. Encrypt your backup and you won’t have to worry about
the backup device falling into the wrong hands.
But do not, I repeat, do not leave your backup device connected to the computer. Always unplug the backup device after the backup is complete!
- Don’t enable macros in document attachments received via email.
Microsoft deliberately turned off auto-execution of macros by default
many years ago as a security measure. A lot of malware infections rely
on persuading you to turn macros back on, so don’t do it!
Naturally they don't tell you that the click they ask you to do will turn macros back on. They rather trick you into believing that clicking is the thing to do to be able to read what they sent you...
- Be cautious about unsolicited attachments.
The crooks are relying on the dilemma that you shouldn’t open a document
until you are sure it’s the one you want, but you can’t tell if it’s the one
you want until you open it. If in doubt, leave it out.
Currently I do not open ANY attachments; I call the sender and have them explain what and why they sent the attachment and even if all that checks out I additionally check the attachment on Virus Total.
- Don’t give yourself more login power than you need. Most importantly, don’t stay logged in
as an administrator any longer than is strictly necessary, and avoid
browsing, opening documents or other “regular work” activities while you
have administrator rights.
Quite a lofty ideal as I am currently experiencing first hand.
- Consider installing the Microsoft Office viewers. These viewer applications
let you see what documents look like without opening them in Word or
Excel itself. In particular, the viewer software doesn’t support macros
at all, so you can’t enable macros by mistake!
Now is a good suggestion, I will have to do that!
- Patch early, patch often. Malware that
doesn’t come in via document macros often relies on security bugs in
popular applications, including Office, your browser, Flash and more.
The sooner you patch, the fewer open holes remain for the crooks to
exploit.
As I always preach: Update, update, update.
Stay safe!
Labels:
attachment,
Backup,
email,
general,
HowTo,
malware,
ransomware,
recommended,
security,
Virustotal
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