I thought it would be worthwhile to explore the Beresford backdoor. I recently picked up an old S7 Ethernet module and wanted to see if it contained anything similar.
To do this analysis, I grabbed a few firmwares from Siemens’ download site. It’s easy enough to do. Searching for any of their CPU names on Google will give you their product home page, which
To do this analysis, I grabbed a few firmwares from Siemens’ download site. It’s easy enough to do. Searching for any of their CPU names on Google will give you their product home page, which
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