Here is the full list of all 12 Cyber Virus achievements.
Completed lev1 in hard mode
Completed lev2 in hard mode
Completed lev3 in hard mode
Completed lev4 in hard mode
Completed lev5 in hard mode
Completed le6 in hard mode
Completed lev7 in hard mode
Completed lev8 in hard mode
Completed lev9 in hard mode
Completed lev10 in hard mode
Completed lev11 in hard mode
Completed lev12 in hard mode