Lemon_Duck cryptominer malware now targets Linux devices

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The Lemon_Duck cryptomining malware has been updated to compromise Linux machines via SSH brute force attacks, to exploit SMBGhost-vulnerable Windows systems, and to infect servers running Redis and Hadoop instances. Lemon_Duck (spotted last year by Trend Micro and further examined by SentinelOne) is known for targeting enterprise networks, gaining access over the MS SQL service via brute-forcing or the SMB protocol using… Read more »

Lucifer cryptomining DDoS malware now targets Linux systems

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A hybrid DDoS botnet known for turning vulnerable Windows devices into Monero cryptomining bots is now also scanning for and infecting Linux systems. While the botnet’s authors named it Satan DDoS, security researchers are calling it Lucifer to differentiate it from Satan ransomware. Besides adding Linux targeting support, Lucifer’s creators have also expanded the Windows version’s capabilities to steal credentials and escalate privileges using… Read more »

FritzFrog malware attacks Linux servers over SSH to mine Monero

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A sophisticated botnet campaign named FritzFrog has been discovered breaching SSH servers around the world, since at least January 2020. Written in Golang, FritzFrog is both a worm and a botnet that targets government, education, and finance sectors. The attack has already managed to infiltrate over 500 servers in the U.S. and Europe, of universities and a railway company…. Read more »

Millions of Linux Servers Under Worm Attack Via Exim Flaw

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A widespread campaign is exploiting a vulnerability in the Exim mail transport agent (MTA) to gain remote command-execution on victims’ Linux systems. Researchers say that currently more than 3.5 million servers are at risk from the attacks, which are using a wormable exploit. Specifically under attack is a flaw in Exim-based mail servers, which run… Read more »