from scapy.all import sniff

def filterSpec(paquet):
    try:
        if paquet.sport == 4988 and isSpec(paquet.load):
            return True
    except:
        pass
    return False

def isSpec(payload):
    if payload[4:25] == bytes.fromhex('0a12098f48149302d4771611d517ea42fd02998212'):
        return True

def pSpec(paquet):
    print(paquet.load[26:], "viens de rejoindre le combat en spectateur")

sniff(lfilter=filterSpec, prn=pSpec)