The most references of Ancient Egyptians to 'evil' and 'demons (fiends)' that I have encountered are related to Set and/or from the Book of the Dead. This post is quite lenghtly and gives many refernces to evil,fiends from the Book of the Dead.
"Set was the personification of the powers of darkness, and of evil, and of the forces of the waters which were supposed to resist light and order, a number of beasts which dwelt in the waters, or at least partly on land and partly in water, were regarded as symbols of him and as beings wherein he took up his habitation. Among these were the serpent Apep, the fabulous beast, Akhekh, which was a species of antelope with a bird's head surmounted by three uraei, and a pair of wings, the hippopotamus, the crocodile, the pig, the turtle, the ass, etc. These animals were, however, not the only ones which were regarded as types of Set, for as Dr. Brugsch has rightly observed, every creature which was snared or caught in the waters of hunted in the desert, was treated as an incarnation of Set; and animals with red, or reddish-brown hair or skins, and even red-haired men were supposed to be especially under the influence of Set. "
The following was taken from the Papyrus of Ani as translated by E.A.Wallis Budge (please note that not all of the text included here was included in the Papyrsus of Ani and the available text from the Papyrus of Heru-em-khebit (Turin Papyrus), the Papayrus of Nu, and Papyrus of Nebseni was substituted by Budge to give a better understanding of the the procession through the Duat)
THE PYLONS OF THE HOUSE OF OSIRIS
Nu, the steward of the keeper of the seal, saith when he cometh to the ELEVENTH PYLON of Osiris: "I have made my way, I know you, and I know thy name, and I know the name of her who is within thee: She who slayeth always, consumer of the fiends by fire, mistress of every pylon, the lady who is acclaimed on the day of darkness" is thy name. She inspecteth the swathing of the helpless one.
The Osiris Nu, the steward of the keeper of the seal, saith when he cometh to the FOURTEENTH PYLON of Osiris: "I have made my way, I know thee, and I know thy name, and I know the name of her who is within thee. Lady of might, who trampleth on the Red Demons, who keepeth the festival of Haaker on the day of the hearing of faults" is thy name. She inspecteth the swathing of the helpless one.
THE FIFTEENTH PYLON. The Osiris Heru-em-khebit, whose word is truth, shall say when he cometh to this pylon: "Fiend, red of hair and eyes, who appeareth by night, and doth fetter the fiend in his lair. Let her hands be given to the Still-Heart in his hour, let her advance and go forward" is thy name. She inspecteth the swathing of the helpless one.
THE SIXTEENTH PYLON. The Osiris Heru-em-khebit, whose word is truth, shall say when he cometh to this pylon: "Terrible one, lady of the rain- storm, destroyer of the souls of men, devourer of the bodies of men, orderer, producer, and maker of slaughter" is thy name. She inspecteth the swathing of the helpless one.
THE SEVENTEENTH PYLON. The Osiris Heru-em-khebit, whose word is truth, shall say when he cometh to this pylon: "Hewer-in-pieces in blood, Ahibit, lady of hair" is thy name. She inspecteth the swathing of the helpless one.
THE EIGHTEENTH PYLON. The Osiris Heru-em-khebit, whose word is truth, shall say when he cometh to this pylon: "Fire-lover, pure one, lover of slaughterings, cutter off of heads, devoted one, lady of the Great House, slaughterer of fiends at eventide" is thy name. She inspecteth the swathing of the helpless one.
THE TWENTIETH PYLON. The Osiris Heru-em-khebit, whose word is truth, shall say when he cometh to this pylon: "Dweller in the cavern of her lord, her name is Clother, hider of her creations, conqueror of hearts, swallower [of them]" is thy name. She inspecteth the swathings of the White House.
THE TWENTY-FIRST PYLON. The Osiris Heru-em-khebit, whose word is truth, shall say when he cometh to this pylon: "Knife which cutteth when [its name] is uttered, slayer of those who approach thy flame" is thy name. She possesseth hidden plans.
THE JUDGES IN ANU
Hail, Thoth, who madest to be true the word of Osiris against his enemies, make thou the word of the scribe Nebseni to be true against his enemies, even as thou didst make the word of Osiris to be true against his enemies, in the presence of the Tchatcha Chiefs who are with Ra and Osiris in Anu, on the night of the "things of the night," and the night of battle, and of the fettering of the Sebau fiends, and the day of the destruction of the enemies of Neb-er-tcher.
Now the great Tchatcha Chiefs in Anu are Tem, Shu, Tefnut, [Osiris and Thoth]. Now the "fettering of the Sebau fiends" signifieth the destruction of the Smaiu fiends of Set, when he wrought iniquity a second time.
Hail, Thoth, who didst make the word of Osiris to be true against his enemies, make thou the word of the Osiris Ani to be true against his enemies, with the great Tchatcha Chiefs who are in Sekhem, on the night of the "things of the night" in Sekhem.
Now the great Tchatcha Chiefs who are in Sekhem are Heru-khenti-en- ariti and Thoth who is with the Tchatcha Chiefs of Nerutef. Now the night of the "things of the night festival" signifieth the dawn on the sarcophagus of Osiris.
THE CHAPTER OF GIVING AIR IN KHERT-NETER. The Osiris Ani saith:- I am the Egg which dwelt in the Great Cackler. I keep ward over that great place which Keb hath proclaimed upon earth. I live; it liveth. I grow up, I live, I snuff the air. I am Utcha-aab. I go round about his egg [to protect it]. I have thwarted the moment of Set. Hail, Sweet one of the Two Lands! Hail, dweller in the tchefa food! Hail, dweller in the lapis-lazuli! Watch ye over him that is in his cradle, the Babe when he cometh forth to you.
THE CHAPTER OF NOT BEING TRANSPORTED TO THE EAST IN KHERT-NETER.
The Osiris Ani saith:- Hail, Phallus of Ra, which advanceth and beateth down opposition. Things which have been without motion for millions of years have come into life through Baba. I am stronger thereby than the strong, and I have more power thereby than the mighty. Now, let me not be carried away in a boat, or be seized violently and taken to the East, to have the festivals of Sebau Devils celebrated on me. Let not deadly wounds be inflicted upon me, and let me not be gored by horns. Thou shalt neither fall [nor] eat fish made by Tebun.
Now, no evil thing of any kind whatsoever shall be done unto me by the Sebau Devils. [I shall not be gored by] horns. Therefore the Phallus of Ra, [which is] the head of Osiris, shall not be swallowed up. Behold, I shall come into me fields and I shall cut the grain. The gods shall provide me with food. Thou shalt not then be gored, Ra-Khepera. There shall not be then pus in the Eye of Tem, and it shall not be destroyed. Violence shall not be done unto me, and I shall not be carried away in [my] boat to the East to have the festivals of the Sebau Devils celebrated on me in evil fashion. Cruel gashes with knives shall not be inflicted upon me, and I shall not be carried away in [my] boat to the East. I the Osiris, the assessor of the holy offerings of all the gods, Ani, whose word is truth, happily, the lord of fealty [to Osiris].
excerpts from :
THE SOLAR LITANY
Homage to thee, O Lord of the Acacia Tree, whose Seker Boat is set upon its sledge, who turnest back the Fiend, the Evildoer, and dost cause the Eye of Ra (utchat) to rest upon its seat, O grant thou unto me a path whereover I may pass in peace, for I am just and true; I have not spoken falsehood wittingly, nor have I done aught with deceit.
Homage to thee, O thou who comest as Tem, who didst come into being to create the Company of the Gods. Homage to thee, O thou who comest as the Soul of Souls, the Holy One in Amentet. Homage to thee, O President of the Gods, who illuminest the Tuat with thy beauties. Homage to thee, O thou who comest as the Light-god, who travellest in thy Disk. Homage to thee, O thou greatest of all gods, who are crowned King in heaven, Governor in the Tuat. Homage to thee, O thou who makest a way through the Tuat, who dost lead the way through all doors. Homage to thee, O thou who art among the gods, who dost weigh words in Khert-Neter. Homage to thee, O thou who dwellest in thy secret places, who dost fashion the Tuat with thy might. Homage to thee, O great one, O mighty one, thine enemies have fallen in places where they were smitten. Homage to thee, O thou who hast hacked the Sebau-fiends in pieces, and hast annihilated Aapep. Grant thou the sweet breeze of the north wind to the Osiris Auf-ankh, whose word is truth.
THE CHAPTER OF THE NEW MOON
A HYMN TO RA [WHICH IS TO BE SUNG] ON THE DAY OF THE MONTH (THE DAY OF THE NEW MOON) [WHEN] THE BOAT OF RA SAILETH. [The Osiris the scribe Ani, whose word is truth, saith:-] Homage to thee, O thou who dwellest in thy Boat. Thou rollest on, thou rollest on, thou sendest forth light, thou sendest forth light. Thou decreest rejoicing for [every] man for millions of years unto those who love him. Thou givest [thy] face to the Hememet spirits, thou god Khepera who dwellest in thy Boat. Thou hast overthrown the Fiend Aapep. O ye Sons of Keb, overthrow ye the enemies of the Osiris Ani, whose word is truth, and the fiends of destruction who would destroy the Boat of Ra. Horus hath cut off your heads in heaven. Ye who were in the forms of geese, your navel strings are on the earth. The animals are set upon the earth..... in the form of fish. Every male fiend and every female fiend shall be destroyed by the Osiris Ani, whose word is truth. Whether the fiends descend from out of heaven, or whether they come forth from the earth, or whether they advance on the waters, or whether they come from among the Star-gods, Thoth, [the son of Aner], coming forth from Anerti shall hack them to pieces. And the Osiris Ani shall make them silent and dumb. And behold ye, this god, the mighty one of slaughters, the terror of whom is most great, shall wash himself clean in your blood, and he shall bathe in your gore, and ye shall be destroyed by the Osiris Ani in the Boat of his Lord Ra- Horus. The heart of the Osiris Ani, whose word is truth, shall live. His mother Isis giveth birth to him, and Nephthys nurseth him, just as Isis gave birth to Horus, and Nephthys nursed him. [He] shall repulse the Smait fiends of Suti. They shall see the Urrt Crown stablished upon his head, and they shall fall down upon their faces [and worship him]. Behold, O ye Spirit-souls, and men, and gods, and ye dead, when ye see the Osiris Ani, whose word is truth, in the form of Horus, and the favoured one of the Urrt Crown, fall ye down upon your faces. The word of the Osiris Ani is truth before his enemies in heaven above, and on earth beneath, and before the Tchatchau Chiefs of every god and of every goddess.
THE CHAPTER OF NOT DYING A SECOND TIME. The Osiris Ani, whose word is truth, saith:- Hail, Thoth! What is it that hath happened to the children of Nut? They have waged war, they have upheld strife, they have done evil, they have created the fiends, they have made slaughter, they have caused trouble; in truth, in all their doings the strong have worked against the weak. Grant, O might of Thoth, that that which the god Tem hath decreed [may be done!] And thou regardest not evil, nor art thou provoked to anger when they bring their years to confusion, and throng in and push in to disturb their months. For in all that they have done unto thee they have worked iniquity in secret. I am they writing- palette, O Thoth, and I have brought unto thee thine ink-jar. I am not of those who work iniquity in their secret places; let not evil happen unto me.
THE CHAPTER OF REPULSING SLAUGHTER IN HENSU (From the Papyrus of Nu, Sheet 6)
THE CHAPTER OF DRIVING BACK THE SLAUGHTERS WHICH ARE PERFORMED IN HENSU
I am he who dwelleth in the Utchat. No evil thing of any shape or kind shall spring up against me, and no baleful object, and no harmful thing, and no disastrous thing shall happen unto me. I open the door in heaven. I rule my throne. I open the way for the births which take place on this day. I am the child who traverseth the road of Yesterday. I am To-day for untold nations and peoples. I am he who protecteth you for millions of years. Whether ye be denizens of heaven, or of the earth, or of the South, or of the North, or of the East, or of the West, the fear of me is in your bodies. I am he whose being hath been wrought in his eye. I shall not die again. My moment is in your bodies, but my forms are in my place of habitation. I am "He who cannot be known." The Red Fiends have their faces directed against me. I am the unveiled one. The period when the heavens were created for me and were enlarged the bounds of earth, and multiplied the progeny thereof, cannot be found out. They shall fail and not be united again. By reason of the speech which I address to you, my name setteth itself apart from all things evil which are in the mouths of men.
http://www.sas.upenn.edu/African_Studie ... s_Ani.html