Fresh RapperBot Malware Variant Brute-Forces Its Way Into SSH Servers

Tracked by analysts since mid-June, RapperBot malware has unfold via brute-force assaults on SSH servers. The IoT botnet targets units working on ARM, MIPS, SCARC, and x86 architectures, researchers warn.

The malware is a Mirai variant with just a few notable, novel options, together with ditching the standard Telnet server brute-force strategy in favor of attacking SSH servers as an alternative. Fortinet Labs analysts stated that since July, RapperBot has modified up its strategy from infecting as many servers as doable to sustaining distant entry to these compromised SSH servers.

The malware will get its title from a URL that led to a YouTube rap video in early variations, the researchers defined.

“Attributable to some vital and curious modifications that RapperBot has undergone, its main motivation remains to be a little bit of a thriller,” the Fortinet advisory on RapperBot stated. “Regardless, since its main propagation methodology is brute forcing SSH credentials, this menace can simply be mitigated by setting sturdy passwords for units or disabling password authentication for SSH (the place doable).”

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