CSC ("CorelScript") is a prefix indentifying Corel Script viruses. These viruses replicate within Corel Script files ("*.csc").
Corel Script is a script language that is included within several Corel's applications, including Corel Draw.
For more information, please look at the description of the first Corel Script virus, CSV.
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.