SilverFox Targets Japanese Manufacturer With Advanced ValleyRAT Campaign
SilverFox targeted a Japanese manufacturer with new DLL sideloading techniques, kernel drivers, and resilient ValleyRAT persistence mechanisms. Cato CTRL documented a new SilverFox campaign targeting a Japanese industrial manufacturer. The attack chain adds two previously undocumented DLL-sideloading hosts, two kernel drivers not previously associated with SilverFox, and a dual-layer recovery architecture that keeps ValleyRAT running […]
Cato CTRL documented a new SilverFox campaign targeting a Japanese industrial manufacturer. The attack chain adds two previously undocumented DLL-sideloading hosts, two kernel drivers not previously associated with SilverFox, and a dual-layer recovery architecture that keeps ValleyRAT running even if defenders terminate individual components.
The attack chain starts with an invoice-themed phishing email. The last stage was remote access via ValleyRAT. Everything in between is the interesting part.
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