While D-akov has a reputation for "clean" repacks (no added viruses), the scene is rife with clones. Many sites offering "Adobe Reader XI 11.0.08 RePack by D-akov" are malware traps. If the hash does not match original scene releases, you risk:
: This refers to the version of Adobe Reader. Adobe Reader XI (11) was a significant release that came with several enhancements over its predecessors, including a new interface that integrated more seamlessly with Windows 7 and Windows 8, improved performance, and new features for working with PDFs.
End of Life announcement by Adobe for Acrobat XI and Reader XI
This specific update (11.0.08) focuses primarily on and stability.
to open untrusted PDFs from the internet or email on a production machine.