A new Trickbot variant has appeared on Trend Micro’s radar that uses a URL redirect in a spam email as a tactic to sidestep spam filters set to block the malware.
The spam email is well-constructed and legitimate appearing with content that indicates a processed order is ready for shipping and includes a shipping number and additional details to convince the recipient to click on the link.
“In this particular case, the variant used Google to redirect from the URL hxxps://google[.]dm:443/url?q=<trickbot downloader>, whereby the URL in the query string, url?q=<url>, is the malicious URL that the user is redirected to,” Trend Micro wrote.
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