Businesses today pride themselves on responding quickly to changing conditions. Unfortunately, cybercriminals aren’t any different. A newly discovered malware family hitting point-of-sale (PoS) systems has been found which emphasizes speed in how the information is stolen and sent back to attackers. We called this attack FastPOS, due to the speed and efficiency of its credit card theft capabilities.
FastPOS is designed to immediately exfiltrate any stolen card data, instead of storing it locally in a file and periodically sending it to the attackers. This suggests that it may have been designed to target situations with a much smaller network environment. An example would be where the primary network gateway is a simple DSL modem with ports forwarded to the POS system.