The z4root is detect as malware, the Universal Androot the same, some files to fastboot the same, etc.
Files as batchs, executables, Java files, perl files, development projects, etc, that use exploits or something that try to bypass the security or important files from system, is detected as malware.
The application might not even have anything bad, but just simply have something that can be used to bad ends.
If you can try, scan the z4root apk in the mobile or even on the PC with some good antivirus, you will see, the software will detect malware, and in fact, the app don't have nothing bad, simply have a exploit that bypass the system to give root permissions, or something like that.
Perhaps for Blade, but, if you search, you'll find good feedback about this patch.
But, as always, you will find bad feedback and information about placebo effect.
You, better than any other normal user, know that the same device do not works the same way, and not all have the same results or problems.
I have tried the patch and show some improvements namely with the facebook app and the Play Store.
I will try the new version to see what happens.
Some users with Blade using AOKP Remix, say the Linaro give really good performance, I really don't see any (maybe because the rom uses an old version), but, it's me, not mean that others do not see improvements.
The most or even all ADB scripts, root scripts, fastboot scripts, are recognized as vírus because they crack securities or require special permissions, and if you know how the antivirus work, they block all that can compromise the system, security system and the user.