78repack.exe -

Next, I should list some possible origins or purposes. Maybe someone created a repack of a game or software but used incorrect naming conventions. Alternatively, it might be a virus or trojan that's disguised as a repack. The "RePack" part sounds like it's redistributing software, which in itself is iffy unless it's legal.

78RePack (утилита для конвертации архивов Wim/Esd/Swm/Rwm) 78RePack.exe