REGEX-Escape for:
%63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64

Your Input:

Ads

Result, the escaped string:

%63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64

Ads

What must the escaping look like for:
%63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64

The escaped text for use in a regex is:

%63%70%61%73%62%69%65%6e%64%75%72%70%61%73%73%77%6f%72%64


Ads