If you can't decompile the swf (looks obfuscated or broken) then check the memory.....
Code:
Offset 0 1 2 3 4 5 6 7 8 9 A B C D E F
060DCAC0 65 08 72 65 64 69 72 65 63 74 0B 73 65 63 75 72 e.redirect.secur
060DCAD0 65 54 6F 6B 65 6E 09 75 6E 64 65 66 69 6E 65 64 eToken.undefined
060DCAE0 10 72 6F 67 65 72 53 65 63 75 72 65 54 6F 6B 65 .rogerSecureToke
060DCAF0 6E 04 68 61 73 68 0C 23 79 77 25 74 74 23 77 40 n.hash.#yw%tt#w@
060DCB00 6B 6B 75 03 54 45 41 17 63 6F 6D 2E 77 6F 77 7A kku.TEA.com.wowz
060DCB10 61 2E 65 6E 63 72 79 70 74 69 6F 6E 41 53 33 07 a.encryptionAS3.
...in many cases you find the stored token right after securetoken ASCII string if memory was not overwritten.What you can do if you think token is used then...
- check memory first (quick check)
- or decompile swf file (search connection.call to find token string or string for -K parameter if used) in action script.
- or using any other advanced methods
If no token used then the problem could be that some parameters you got a dynamic (playpath for exsample) and working just per session (time-limit or per access etc) or rtmpdump dosen't work (because of any bugs or not supported features / streams).
greetz