Security researchers have discovered another piece of espionage malware infecting computers and targeting sensitive organisations in the Middle East, UPI has reported. Detected by Kaspersky Lab in Russia and Seculert in Israel, the malware on more than 800 PCs operated by critical infrastructure companies, financial institutions and government agencies has been siphoning e-mails, passwords, computer files and nearby conversations. It is still unclear whether the malware, dubbed Madi, is a state-sponsored attack or not. Madi can log keystrokes, capture screenshots and steal any messages sent to or from a variety of widely used services, including Gmail, Hotmail, Yahoo! Mail, Skype or ICQ, the researchers said.