Messed up my superuser whitelist, help

[overthinkingme]

Hi, I am on Darchdroid 2.7 and while I was trying to push Camera.apk to my phone I kept getting the "read only file system" message. I did not know at the time that the first thing I should've done was "adb shell" followed by "su" to make sure adb got onto the superuser whitelist.

Well, i proceeded to read around the net (here)and I used this command I saw around to get root:

mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
cd /system/bin
cat sh > su
chmod 4775 su

And it worked, I was able to push the Camera.apk.

Now i have a problem though, when I use an app that requires root, it no longer brings up the superuser whitelist app even if I've chosen to forget them from the whitelist.

Titanium backup gives the following message:

Warning -
BusyBox works but the "su" command does not elevate to root: "whoami" reports "app_47" instead of root/uid 0. I think your "Superuser Whitelist" system app does not work. Please check with your ROM provider.

I searched around the net and I actually found a post regarding this from the dev behind Titanium Backup saying that if this message shows up, it means that the app is not properly communicating with the superuser whitelist....

Now, I believe that the commands I put in adb previously did away with the superuser whitelist and just gave root to whatever app asks for it, I don't know if I am correct.

Can anyone verify this? If so, is there a way to undo what I did? ..or will reflashing Darchdroid be my best option?

I really dont want to flash, I just got this rom settled in :\

Thanks in advance!