That file is used by iStealer which steals your passwords.
mozsqlite3.dll is used by many stealer's targeting Firefox passwords, This would be one of many targets bundled in the "hack" most common is game keys and web browser saved passwords. I would be checking your auto registry keys also as normally stealer's like this copies it self to another location(normally windows system folder) and renames its self to hide from detection. if you have a copy of the "hack" please supply a link so I can debug it and find out fully what kind of stealer this is and what its behaviour is. This will ensure after my report that it cleared from your system.