Attackers distributing malicious Trojan that infects only Raspberry Pi Minicomputers. These Trojans have a compressed and encrypted application to generate cryptocurrency.
Named as Linux.MulDrop.1, Linux.ProxyM.
Both of the malicious Trojans are examined by Dr.Web Security researchers.
Linux.MulDrop.14
Distribution started in late of may. Once the malware executed it will change the system password as below and then unpack the cryptocurrency miner.
“\$6\$U1Nu9qCp\$FhPuo8s5PsQlH6lwUdTwFcAUPNzmr0pWCdNJj.p6l4Mzi8S867YLmc7BspmEH95POv xPQ3PzP029yT1L3yi6K1”
Then it goes infinite loop using Zenmap to find network nodes open with port 22, once connection established with SSH it uses sshpass and attempts to log in with user: pi and password: raspberry which is the default username and password.
Also read IoT Botnet Spreading over HTTP Port and Exploiting Security Cameras.
According to Dr.Web Security experts, the infection occurs if the port number 22 kept open and the default password is not changed.
Linux.ProxyM.1
This Trojan used by attackers to ensure there Anonymity. Once launched it will connect to C&C server to get commands from the attacker.
Then it runs a SOCKS proxy server on the infected Machine. Significant attack Over Russia, China, and Taiwan. Illustration of geographical locations for attacked IP’s provided Dr.Web.
This trojan was first noticed by Dr.Web Security experts in February 2017, then it has an enormous growth at the end of May.
Also read Mirai Botnet of 400,000 Bots available for Rental
When compared this to Mirai botnet targeting IoT Devices which explodes in the Mid of April it is far better, both of them use to infect in the same way.
Mirai uses Telnet ports with default username and passwords, whereas Linux.MulDrop.14 uses SSH ports with default username and passwords.
Also Read Serious Threat: A multi-component Trojan from Linux.LuaBot family infecting Linux devices
