Remove the HEX from URL

you mean to remove /f5-w-687474703a2f2f6d7062684161$$/ part, don't you? is there anything static there (e.g. number of characters, terminate character, string format, etc)?

yes that is what I mean nitass I am not sure if its static. for the most part, it is the same number of characters.

there are a number of ways. anyway, this is just an example of regsub.

[root@ve10:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
  if { [HTTP::uri] contains "/f5-w-" } {
    HTTP::uri [regsub -nocase {/f5\-w\-[0-9a-f]+\$\$} [HTTP::uri] ""]
  }
}
}

[root@ve10:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.20.11(57437) <-> 172.28.19.252(80)
1369195360.4283 (0.0040)  C>S
---------------------------------------------------------------
HEAD /f5-w-687474703a2f2f6d7062684161$$/something HTTP/1.1
User-Agent: curl/7.19.7 (i686-redhat-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8y zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.252
Accept: */*

---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(57437) <-> 200.200.200.101(80)
1369195360.4301 (0.0016)  C>S
---------------------------------------------------------------
HEAD /something HTTP/1.1
User-Agent: curl/7.19.7 (i686-redhat-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8y zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.252
Accept: */*

---------------------------------------------------------------