Here are my personal ban test results.
Hacks used:
Nico's .dll (VinPub93)
Metaject
System:
Windows 7 64-Bit
Test subjects:
Account #1
Level 21
Created prior to patch
Hacked successfully without ban before patch
Logged on, started running maps, noticed system delay, kept running, game crashed, banned.
I ran approx. 5-10 maps prior to ban, and used killall/ohk very frequently.
Was banned after running the same map (Dethrone the white tyrant) very quickly, and
multiple times.
For the lulz.
System delay screen.
Ban message.
Account #2
Level 11
Created after patch
Created to purposefully get banned
Created character, ran maps 1-5, got to map "Friends?" and started repeating it,
banned after 3rd repeat.
Map completion times ranged from 2-3 minutes and I received the system delay every time.
System Delay.
Same ban message.
Account #3
Level 10
Created after patch
Created to purposefully get banned
Created character, ran entire perilous ruins series (9 maps) without repeating any maps, logged out, banned.
The ONLY thing I used on this character was KillAll, I also purposefully went slow to show longer battle times.
System delay.
Same ban message.
This concludes my testing for now, if you find something, please post it here and I will add it.
It seems nexon has stepped up their ban game,
It is my person belief that they are using multiple methods of detection to catch both botting and hacking, and that this is not the only way they're doing it. It seems to me that they're more prone to ban suspected botters. Prior to this update it was unlikely to get banned prior to level 30 or so. I've been able to get a lv. 21, and a lv. 11 banned using repeatable results. Therefore it is my guess that it is going to be harder to get around getting banned for the time being,
I do not suggest using main accounts with the current hack detection system, unless playing completely legit.
Possible things to avoid:
Running the same map quickly, multiple times in a row.
Running maps extremely quickly (under 3 minutes)
Using ohk and god mode frequently as opposed to killall (as this gets the run ranked)
I hope this information helps, the more we can all figure out about the new ban systems the more we'll be able to avoid them.
Note: Thank you to The408 for running controlled tests along with me