updated 2/11/2014 4:46:47 PM ET 2014-02-11T21:46:47

(Reuters) - Network security company FireEye Inc reported a larger adjusted loss, sending its shares down nearly 8 percent in after-hours trading.

The company's adjusted net loss widened to $40.5 million, or 35 cents per share, for the fourth quarter ended December 31, from $8.4 million, or 64 cents, a year earlier.

Revenue jumped 81 percent to $57.3 million.

FireEye's signature-less threat prevention technology helps businesses and governments detect and ward off malicious software.

The company's shares closed at $78.01 on the Nasdaq on Tuesday.

(Reporting By Lehar Maan in Bangalore; Editing by Sriraj Kalluvila)

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