weird twitter virus/spam?

weird twitter virus/spam?
Viruses
I saw some tweets pop up in my timeline from this "user" I don't follow... seems a bit suspicious, no?

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:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :confused: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen: