There is localized malware written in all languages but since English is used all over the world in most countries, most malware written in English is global malware. However there is also localized malware written in English that only effects small areas and never goes global.MalwareVirus said:@Littlebits
"The best way to protect your system from getting these remote infections is don not install foreign language packs to Windows. If a malware is written in another language and your system doesn't include that language pack then it can not infect Windows."
"So these localized security products are very important to users in those areas because global AV's for example can not detect these local malware. If you live in the Indonesian areas, Kompas Antivirus might be an excellent option to use."
I have a question over it.As i live in india & 99% or more computer operates on english as window default lang.So in this situatation mostly local virus are written in english too so still Local AV's like Quick heal or k7 are better than Global AV's like KIS or BIS ?
So it is possible that localized AV's in your area could detect that local malware that the global AV's will miss.
In the USA, there is not a lot of localized malware, most of it is global.
But in Asia the story is much different. There is known localized malware in China, Russia, Japan, Korea, Vietnam, Indonesia, Malaysia, India and most other Asian countries and countries next to the European and African borders.
Most of the localized malware never get added to the global AV vendors database. Since they will run their course then be obsolete.