They named the band after a barbaric people that had dominated Egypt in the time of Faraos. Due to great aggressiveness and force of this people, they had automatically associated it to the sound of the band, baptizing it of HICSOS.

Three years after formed, the band loses guitarist Allan who leaves the band for family problems. Soon after the entrance of a substitute, the band records your second demo called "SUICIDE ILLUSION", launched in 1995. The great acceptance of the demo between the public relieved the band the open act of the show of band DxRxI who came in Rio de Janeiro in January of 1997.

After this show the band suffers the loss of another guitar again. It is invited to the cast Christiam Dias, that the second guitar assumes. After successes with this formation, in May of 1997 they leave for a mini-tour for the northeast of the country.

In the return of tour, the band suffers a loss again, for personal reasons the drummer Luiz decides to leave of the band. As substitute, they invite Marcelo Ledd, an old friend of the band since the beginning of everything. Marcelo gives a a new face to the band, with your Hardcore influences.

So, the band reformulates all your musics, beginning a new phase. Heavier guitars, more aggressive beat, influenced by bands as, BIOHARZAD , AGNOSTIC FRONT , S.O.D and MACHINE HEAD . With the right changes, the band leaves again for highway, participating the open act of the show of the God of Metal, King Diamond's band, MERCYFULL FATE , that happened in January of 1998 in your passage for Rio de Janeiro.

Following road, the band suffers new loss in the second guitar, as trio, the band has the responsibility of the open act of the show of one of Thrash Metal's icons, EXODUS , in May of 1998 in Rio de Janeiro.

Then, they recorded their third demo-cd entitled "HICSOS" in the year of 1999, after the recording, new formation with guitarist Leandro Leite entrance, increasing the influences hardcore. But, for little time, for problems of work of the second guitar, the band is a trio again.

In November of 2000, Marcelo discovers the young guitarist Carlos Guss, only 18 years old, assuming the position. Finally in May of 2001, the band travels to São Paulo to record your first Official CD entitled "Eatin' Concrete", under the production and participation of Marcello POMPEU and HEROS Trench (KORZUS) , and with participation of SILVIO GOLFETTI (KORZUS).

With material ready, in June of 2002 in the Sleevers program, and divulged the video clip of the music INSANE FUTURE.

In 2003 new loss, leaves Carlos Guss, and soon after that enter Denis Muniz (ex-CAVALAST) , an old friend of the band, that was already part of the scenery metal to long years. With new Line-up, the band proceeds with shows in the Espírito Santo, and great circuit for Rio de Janeiro.

In May of 2004 it is thrown the CD Eatin Concrete officially in the show of open act of the band NAPALM DEATH in the Olimpo's house in Rio de Janeiro, proceeding with your tour for Rio de Janeiro and north, with prominence for show of opening of the Band ANTHRAX in the show house CLARO HALL in February of 2005 in Rio de Janeiro.

After some shows the band starts the record of a new album entitled "Technologic Pain" with the participation of the new guitar player Nilmon Filho . The record of a new album occurred of July, August and September of 2006 in the Mr. Som Studios SP, under the production of famous Marcello Pompeu and Heros Trench (Korzus). The Cd also features Edu Boccomino and Regis F. (Scars).