misc.bin is a file used for storing KD internal state, used for keeping state between IOS reloads and etc.
This stores a LILO list of timestamps for mail, timestamp for next STM_Wakeup call, among other things. These mail timestamps are updated every time KD_ProcessMail is executed when new mail is downloaded/received, and the current UTC time is added from KD_ProcessMail when the list is updated. See the /dev/net/kd/time page for timestamps format. misc.bin and all WC24 files under /shared2/wc24 can be read and written by any title, but KD only reads misc.bin into RAM once per IOS reload.
File structure
| Start
|
End
|
Length
|
Description
|
| 0x0
|
0x1f
|
0x20
|
LILO list of 3 mail timestamps.
|
| 0x20
|
0x37
|
0x18
|
Unknown
|
| 0x38
|
0x3f
|
0x8
|
Timestamp for when to call STM_Wakeup
|
| 0x40
|
0x3ff
|
0x3c0
|
Unknown
|