[1][2] Formed in 1987, the original and current members are Shamsudin "Sam" Ali (vocals and bass) and Khairul Anuar "Karl" Shariff (guitarist).

[5] Cromok was formed in April 1987 by four young students: Kharuddin Muhammad (Din), Shamsuddin Ali (Sam), Khairul Anuar Shariff (Karl), and Tarmizi Mokhtar (Miji).

Din, the senior member, played a key role in developing the musical and visual style that would define Cromok.

They received positive responses and steadily gained fans, making a name for themselves in the Australian Underground Thrash Metal scene.

They rose through the ranks alongside prominent Australian Godfather bands such as Enticer, SSDC, Mortal Sin, Frozen Doberman, White Trash, Addictive, and Detriment.

[14] The album received positive responses, particularly from teenagers, and helped them build a large local fan base in a short period.

[20] Khairuddin Muhammad, Din, the founding singer-songwriter of Cromok and D'Cromok, passed away on September 27, 1997, from malaria in Mersing, Johor.

[25] After almost five years of hiatus from the music scene, on April 8, 2012, they held a reunion concert in Kuala Lumpur, Malaysia at KLive, featuring three original members (Sam, Karl, and Miji, with Shah Ziri from Nrocinu as rhythm guitar sessionist), which also celebrated the band's 25th anniversary.

The Ministry of Tourism, Arts and Culture Malaysia (MOTAC) supported this performance, which featured thrash metal music in several tracks along with traditional instruments like gamelan, angklung, and flute.

Shortly before the show ended, Kamelia Kharuddin, the daughter of past band member Din, delivered an appreciation speech to all the Cromok fans—the Cromers—for continuously supporting and remembering her late father.