Re: [psad-discuss] Confusing alert from Psad

2013-10-29 Thread Michael Rash
On Oct 29, 2013, Muhammad Yousuf Khan wrote: > [cut] > >psad offers scan detection that is beyond what can be expressed within > > > the signature set. The NULL scan detection message was generated from > > the non-signature portion of psad. > > > > > actually i like the way it worked, it clear

Re: [psad-discuss] Confusing alert from Psad

2013-10-28 Thread Muhammad Yousuf Khan
[cut] >psad offers scan detection that is beyond what can be expressed within > the signature set. The NULL scan detection message was generated from > the non-signature portion of psad. > > actually i like the way it worked, it clear lots of my IDS/IPS concepts. so i like to read it more in dept

Re: [psad-discuss] Confusing alert from Psad

2013-10-28 Thread Michael Rash
On Oct 28, 2013, Muhammad Yousuf Khan wrote: > i am using nmap for scanning NULL and XMAS > > here is the log > > > XMAS log: > > src: 10.x.x.17 signature match: "SCAN nmap XMAS" (sid: 1228) tcp port: 765 > Oct 28 21:03:38 firewall > psad: scan detected: 10.x.x.17 -> 10.x.x.22 tcp: [1-65389]

[psad-discuss] Confusing alert from Psad

2013-10-28 Thread Muhammad Yousuf Khan
i am using nmap for scanning NULL and XMAS here is the log XMAS log: src: 10.x.x.17 signature match: "SCAN nmap XMAS" (sid: 1228) tcp port: 765 Oct 28 21:03:38 firewall psad: scan detected: 10.x.x.17 -> 10.x.x.22 tcp: [1-65389] flags: URG PSH FIN tcp pkts: 2000 DL: 5 Null Scan log: psad: sca