Back in February of this year researchers at Kaspersky Lab uncovered a series of mysterious fileless attacks against banks where criminals were using in-memory malware to infect banking networks. A recent investigation into a Russian bank ATM, where there was no money, no traces of physical interaction with the machine and no malware, has thrown further light on this activity. The bank's forensics specialists recovered two files containing malware logs from the ATM's hard drive. These were the only files left after the attack and while it wasn't possible to recover the malicious executables -- because after the robbery cybercriminals…
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