BERLIN  - German cybersecurity firm Avira said on Thursday that it had agreed to be acquired by $31 billion alternative investment manager Investcorp.

The deal to buy Avira, which was founded in 1986, was worth $180 million, according to a source familiar with the matter. It is subject to anti-trust approval.

(Reporting by Douglas Busvine Editing by Michelle Martin) ((douglas.busvine@tr.com; +49 30 2888 5084; Reuters Messaging: douglas.busvine.thomsonreuters.com@reuters.net))