![]() Activity in the TCP Port 5555 from July 1 to July 15. Our data shows that the first wave of network traffic came mainly from China and the US, while the second wave primarily involved Korea.įigure 1. In this scenario, the activity involves the command line utility called Android Debug Bridge (ADB), a part of the Android SDK that handles communication between devices that also allows developers to run and debug apps on Android devices. Recently, we found a new exploit using port 5555 after detecting two suspicious spikes in activity on July 9-10 and July 15. TCP port 5555, in particular, has had issues in the past due to product manufacturers leaving it open before shipping, which potentially exposes users to attackers. The exploitation of open ports on devices has been an on-going problem for many IoT users.
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