Preface: TCP post connection SYNLogo -Internet Security Systems

TCP post connection SYN

advICE :Intrusions : 2000311
 FAQ
Oh my gosh, I'm being HACKED!!!
How do I report the hacker to my ISP?
I'm seeing lots of attacks, is this normal?
Summary

Attacker is trying to avoid detection by sending a SYN frame with a different sequence number than the original SYN.

Details

This attack may cause an IDS (Intrusion Detection System) to desynchronize with the original connection. The attacker may then continue without being detected.

 more information
Phrack: pck:p54-10   Phrack magazine article on intrusion detection avoidance
 

 parametric information
initial_seqThe original SYN sequence number .
this_seqThe new SYN sequence number.

 
Version appeared: 1.8.6 

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