Lenon has insisted that she was only an accessory in the murder, blaming Lilley

She was convicted in November alongside accomplice Jemma Lilley for murder

Trudi Lenon, 43, was taken to hospital with severe burns after the brutal attack

Convicted murderer of autistic teen boy attacked behind bars on New Year's Day

A convicted murderer who stabbed and killed an autistic teenager in Perth in 2016 has been attacked by prisoners behind bars on New Year's Day.

Trudi Lenon was taken to hospital with severe burns after being set upon by fellow prisoners at Bandyup Women's Prison on Monday morning, The Australian reports.

The 43-year-old was convicted in November 2016, alongside accomplice Jemma Lilley, 26, for the murder of autistic teenager Aaron Pajich.

Convicted murderer Trudi Lenon was taken to hospital with severe burns after being attacked

Trudi Lenon was convicted of the murder of Aaron Pajich (left) alongside Jemma Lilley (right)

Sharon Pajich, mother of Aaron, leaves the court in Western Australia after the guilty verdict

The 18-year-old's body was found in the backyard of the Orelia house which Lenon and Lilley shared in July 2016.

Lenon insisted that she was only an accessory in the murder of Mr Pajich, who had been described as having high functioning autism, claiming Lilley was the real killer.

Lilley's motive for murder was reportedly that it was her 'life's ambition' to kill someone by the time she was aged 25, a West Australian Supreme Court jury was told on in October.

Lilley was reportedly so 'full of herself and euphoric' after committing the murder, that she could not help boasting about killing someone to one of her colleagues.

She also left incriminating voice messages to her 'obsequious and sycophantic' fellow murderer Lenon, talking about how excited she was experiencing things 'she had not felt before'.

The 18-year-old's body was found in a shallow grave and covered with concrete and tiles on June 13 last year.

Lilley was reportedly so 'euphoric' after killing Aaron (pictured) that she boasted to a friend

Veronica Desmond, Aaron's stepmother, leaves court after Lilley and Lenon were found guilty

Evidence of Lilley and Lenon's guilt could be found in a series of phone messages, where they were discussing killing someone while referring to each other by their bizarre names SOS and Corvina.

SOS was the name of a serial killer in a book Lilley had written while Corvina was the name Lenon used as a submissive participant in the bondage scene.

Lenon is in a stable condition at Fiona Stanley Hospital in Perth's south.