Classification

Category :

Malware

Type :

Virus

Aliases :

INTC, Int40, IntC1

Summary

The INTC virus is a simple diskette and Master Boot Record infector. It is only able to infect a hard disk when you try to boot the machine from an infected diskette. At this time INTC infects the Main Boot Record, and after that it will go resident to memory during every boot-up from the hard disk.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

Once INTC gets resident to memory, it will infect practicly all non-writeprotected diskettes used in the machine. INTC installs to interrupt vector table, so it does not decrease the amount of available memory, but can cause compatibility problems.

INTC was reported to be in the wild in USA in December 1996 and in Finland in January 1997.

INTC does nothing except replicates.