[SkyHub] New phishing attack uses Morse code to hide malicious URLs

[Doug Comer KE0DC]

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Posts: 129
 Topic starter February 7, 2021 11:09 am

A new targeted phishing campaign includes the novel obfuscation technique
of using Morse code to hide malicious URLs in an email attachment.

Samuel Morse and Alfred Vail invented morse code as a way of transmitting
messages across telegraph wire. When using Morse code, each letter and
number is encoded as a series of dots (short sound) and dashes (long sound).

Starting last week, a threat actor began utilizing Morse code to hide
malicious URLs in their phishing form to bypass secure mail gateways and
mail filters.

BleepingComputer could not find any references to Morse code being used in
phishing attacks in the past, making this a novel obfuscation technique.

More at
https://www.bleepingcomputer.com/news/security/new-phishing-attack-uses-morse-code-to-hide-malicious-urls/


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Doug Comer
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