(NTFS) – Alternate Data Stream

#include <stdio.h>

int main(int argc, char *argv[]){
    FILE* fFile = fopen("C:\\test.exe:test.txt", "wb");
    if(fFile == NULL){
        printf("Unable to open file.\n");
    }else{
        fprintf(fFile, "Looks like ADS works!");
        fclose(fFile);

        printf("Content should be written to the file.\n");
        return 1;
    }
}