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Is there a way to capture image files via Wireshark?

asked 2018-12-08 05:15:09 +0000

I'm trying to keep an eye on my network, and I want to demonstrate to my sister how easy it'd be for someone to be a creep and stalk what she does in a coffee shop or something. I was wondering if she sent an image to her friend or something, it'd register in Wireshark as JSON protocol, or HTTP or something or other with a file attached to it that I could open with that photo she sent. If there's a way, please let me know!

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answered 2018-12-08 05:35:59 +0000

Guy Harris gravatar image

was wondering if she sent an image to her friend or something, it'd register in Wireshark as JSON protocol, or HTTP or something

That depends on how she sends it. If it's sent over Wi-Fi, and it's not a "protected" Wi-Fi network (WEP, WPA, etc.), and it's not sent using some version of SSL/TLS, then it'd show up as whatever protocol was used - HTTP, with some if that's what's being used, or maybe some messaging protocol. If it's HTTP, then there will be a payload in a PUT or POST request; Wireshark doesn't directly support displaying the payload as an image if it's in an image format (JPEG, etc.), but you could save it to a file and open it.

If it's on a "protected" Wi-Fi network, however, you will either need the password for the network - and, if it's WPA or later, you will need to capture traffic as her phone/tablet/laptop joins the network - in order to decrypt the encrypted Wi-Fi packets, or you'll need a tool to crack the network traffic.

And if it's being sent using some version of SSL/TLS, you'll need additional information to decrypt that traffic, or you'll need a tool to crack that.

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Asked: 2018-12-08 05:15:09 +0000

Seen: 68 times

Last updated: Dec 08