分享一個有問題的流量包

原創 wolf912fox 2020-05-22 23:57

在snort的內置規則，也就是預處理髮出的告警中，有這麼一個：(ipv4) IPv4 datagram length > captured length

從字面上來看是：檢測到IPv4數據包的長度>捕獲到該報文應有的長度的消息發出的告警

具體是啥意思吶~

給你們個截圖就曉得啦~~~

簡單的說就是，這個流量包，哪怕做成pcap文件（pcap文件比實際流量多一些字節），都只有一百多字節，然鵝這條流量卻號稱自己的payload部分有1260字節，然後snort一檢查發現，喲！你說謊！然後就發出了這麼個告警啦~

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