Marketing student Rinad Tamimi (20) said users of 4chan harangued her for being a Muslim, accused her of being a terrorist and told her did not deserve to win a scholarship because she ''was not from here''.
She was ''scared'' to go to class on Wednesday after the earlier incident.
''[People] were basically being racist against me,'' Miss Tamimi said.
''Someone said `we don't need another Hitler' in this world.
''It was just crazy to think that people think that way towards Muslims [in New Zealand].''
In 2012, Miss Tamimi applied for an AMP scholarship and was leading an AMP website voting leaderboard when the posts on 4chan started.
''They had a photo of my profile on there.
''[The post said] people should not vote for me because I'm Muslim. It was shocking,'' she said.
A YouTube video Miss Tamimi made to explain how she planned to use the $10,000 scholarship to help the elderly with computer skills after she graduated was also attacked by trolls.
Comments were posted under the photo and video with derogatory remarks towards her.
The AMP website was also ''hacked'' and votes tampered with.
Miss Tamimi believes it was to boost the chances of another scholarship applicant who mysteriously got ''thousands'' of votes in ''the last couple of days''.
Police took a statement and AMP was contacted.
She won the scholarship but said she and her mother were scared about going to the awards ceremony in Auckland.
''We were quite scared that someone was going to come out of the blue,'' Miss Tamimi said.
No-one was charged over the attack.
Acting Otago coastal area commander Inspector Mel Aitken said a person was at risk any time they posted online.
''The ability for people to post things anonymously ... it's the danger of social media,'' she said.
Insp Aitken advised people targeted by this type of behaviour to contact police.
Otago University Students' Association communications manager Tess Trotter said the OUSA did not deal with many similar situations, but the student support centre ''would support that person through whatever avenue they wanted to go''.
4chan was approached for comment but did not respond.
