Hacker High School: Email Security by Mark Bailil
Author:Mark, Bailil
Language: eng
Format: epub
Published: 2015-05-22T16:00:00+00:00
Now, the part I’m interested in is highlighted above. Note that the “Received” is from kara.org at an IP that appears to be an xo.net DSL line, which does not agree with innovonics.com, the purported sender.
Also, if I look up innovonics.com’s mail server using nslookup, its address comes back as follows: C:\>nslookup innovonics.com
Server: dc.mycompany.com
Address: 192.168.10.54
Non-authoritative answer:
Name: innovonics.com
Address: 64.143.90.9
So, my suspicion was correct, and this is an e-mail that is carrying some malware in an executable file posing as a zip file. The malware has infected the person’s computer on the DSL line, which is now a zombie, sending copies of the malware to everyone in the infected computers address book. I’m glad I checked it out!
Exercises:
1. Citbank and PayPal are two of the most common targets of phishing emails. Research what Citibank or PayPal are doing to fight / control phishing.
2. Research whether your bank or credit card holder has a published statement about the use of email and personal information.
3. (possibly homework) Research a spam email you have received and see if you can determine the real source.
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