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Update another_scapy_sniffer_walkthrough.md

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Omar Santos 2023-01-12 13:40:14 -05:00 committed by GitHub
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programming_and_scripting_for_cybersecurity/recon_scripts/another_scapy_sniffer_walkthrough.md
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@ -21,3 +21,21 @@ sniff(prn=packet_callback, filter="tcp and host 10.1.1.2 and port 80", count=1)
```
It's important to note that capturing packets may require root/admin permissions.
## Saving to a pcap file
Here is a modified version of the script that saves the captured packets to a pcap file:
```
from scapy.all import *
# Define a callback function
def packet_callback(packet):
print(packet.show())
wrpcap("captured_packets.pcap", packet, append=True)
# Use the sniff() function to capture packets
sniff(prn=packet_callback, filter="tcp", count=1)
```
This script uses the `wrpcap()` function from Scapy to save the captured packets to a `pcap` file named "captured_packets.pcap". The `append=True` argument is used to append the packets to the file instead of overwriting it.