Thor mob endure effect

[dakai 0]

Hi guys, I don't now if I'm in the right place, so if not let me know. I want to know if is possible remove the "endure" effect to determinate monsters, I want to remove it that effect to Thor dungeon mobs(sword master , bow master, kazas and salamanders). I seek in the mob skill db file and I don't found anything related to endure for this mob. Is this possible and how? 

 

thx in advance guys.

[dakai 0]

Playing with the mob_db.txt file I found that the "mode" value of this mob was 0x37B5 like the boss monsters, I changed to 0x3395 like the Imps, but know the mobs get frozen, anyone knows the code for make them immune to frozen status, but without endure?