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Linux sends ICMP Echo with 56-byte payload + 8-byte header = 64 bytes total. Windows uses 32 bytes. NDR systems fingerprint hosts by these defaults — before any exploit lands. This post shows how to mimic any OS at the raw socket level.

Network Fingerprinting: Analyzing Default ICMP Structures and Payload Mimicry JM00NJ

Linux sends ICMP Echo with 56-byte payload + 8-byte header = 64 bytes total. Windows uses 32 bytes. NDR systems fingerprint hosts by these defaults — before any exploit lands. This post shows how to mimic any OS at the raw socket level.
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