The Lebanese banks infected by the "Gauss" virus are Bank of Beirut, EBLF, Blom Bank, Byblos Bank, FransaBank and Credit Libanais. The malware, which steals system information but also has a mysterious payload that could be destructive against critical infrastructure, has been found infecting at least 2,500 machines, most of them in Lebanon, according to Russia-based security firm Kaspersky Lab, which discovered the malware in June and published an extensive analysis of it on Thursday.…