ESET Discovers 21 New Linux Malware Families

In a report published last week by cyber-security firm ESET, the company detailed 21 'new' Linux malware families. All operate in the same manner, as trojanized versions of the OpenSSH client. From a report: They are developed as second-stage tools to be deployed in more complex 'botnet' schemes. Attackers would compromise a Linux system, usually a server, and then replace the legitimate OpenSSH installation with one of the trojanized versions.

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