A new peer-to-peer (P2P) botnet called FritzFrog has breached over 500 secure shell (SSH) servers, including those operated by a railway company and some well-known educational institutions in the U.S. and Europe. The threat used binary large objects (BLOBs), which are binary data collections that load in memory as a single entity, to transfer and assemble its files. It also used aggressive brute-force attacks based on an extensive dictionary against targets distributed evenly among nodes.”]
Source: https://securityintelligence.com/news/botnet-fritzfrog-breaches-over-500-servers/