37 lines
2.2 KiB
Markdown
37 lines
2.2 KiB
Markdown
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# AirBridge
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#### Author: 0i41E
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**AirBridge** is a payload designed for the [Packet Squirrel MK II](https://shop.hak5.org/products/packet-squirrel-mark-ii) in combination with Hak5's [MK7AC Module](https://shop.hak5.org/products/mk7ac-wifi-adapter), or similar WiFi adapters.
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It is meant to help users to overcome a potential airgapped network, by utilizing the WiFi adapter to connect to a nearby Station.
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Since it'll start the SSH service, as well as the Web interface, users can then interact with the Squirrel as usual. C2 access or connection to a VPN are also possible afterwards.
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## Preperation
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Before deploying the Squirrel as also the payload, the user has to update the system and install `usb_modeswitch`, as without it, the WiFi adpater will be identified as storage. For this step, internet access is required.
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`opkg update && opkg install usb-modeswitch`
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Apart from this step, the payload needs to be configured.
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Input the desired `SSID`, as well as its `PASSPHRASE`.
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Optionally, the `EXTERNAL_HOST` may be changed from Googles DNS server to a different system. The users C2 instance may be a good alternative, if used. `NETMODE` can be configured to the users needs.
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```
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SSID="<SSID>" # Station SSID
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PASSPHRASE="<Passphrase>" # Passphrase
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EXTERNAL_HOST="8.8.8.8" # External Host to verify connection
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```
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The last step is obvious, but should be mentioned...
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Prepare a Station, reachable by the AC Module.
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## Usage
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After saving the payload, put the switch into the correct position and power up the device.
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After successfully booting, a blinking LED in the color magenta, will indicate the Squirrel being ready to proceed.
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Plug in your WiFi adapter via USB-A and press the button. *This method was implemented intentionally, as during testing it caused problems to power up the device with the AC Module already attached.*
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The LED will start blinking green.
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A solid green LED will indicate the success. Otherwise, a red LED will appear.
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If everything went well, you should now be able to access the Squirrel by whatever IP-Address your Station gave to the Squirrel.
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