In order to be more marketable after PhD is that you have to get a Quality PhD.

If you intend to work in academic, try to publish as many paper in top rated journal. In this day and age it will give you an edge in applying for academic position.

If you want to go into industry, then try to get patent/copyright registered during your PhD study. The better your patent/copyright then you will get more chances into industry.

For social sciences then you need to make yourself more visible by introducing theorems/ideas into the right forums/journals/etc. If any company buy into the idea that you're propagating (original ideas that also give you PhD) you will get a chance into the corporate sector.

If you're run of the mill PhD then you will find very hard to get a decent job with a PhD kind of pay. Also getting a degree in Malaysia admittedly will not give you extra points when competing with other PhD holders getting their degree from a first world country.

Most unis will grant you PhD with 2 refereed journal articles and some university doesn't even require you to publish. Therefore your research will not get another opinion beside those at the university and thus considered as run-of-the-mill PhD (just enough to graduate).

PhD with lots of publication/patent/published work is considered better then 'normal' PhD and will give you extra points in the job application process. The number of publication vary and it will be related to the journal ranking.