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Linux.Mirai.3091

Added to the Dr.Web virus database: 2019-07-22

Virus description added:

Technical Information

Malicious functions:
Launches itself as a daemon
Substitutes application name for:
  • /bin/busybox
Launches processes:
  • /bin/sh -c cd /bin/; cat tftp > tftp-cpy; cat <SAMPLE_FULL_PATH> > tftp
  • cat tftp
  • cat <SAMPLE_FULL_PATH>
  • /bin/sh -c chmod 777 tftp
  • chmod 777 tftp
  • /bin/sh -c cd /bin/; cat rm > rm-cpy; cat <SAMPLE_FULL_PATH> > rm
  • cat rm
  • /bin/sh -c chmod 777 rm
  • chmod 777 rm
  • /bin/sh -c cd /bin/; cat kill > kill-cpy; cat <SAMPLE_FULL_PATH> > kill
  • cat kill
  • /bin/sh -c chmod 777 kill
  • chmod 777 kill
  • /bin/sh -c cd /bin/; cat cd > cd-cpy; cat <SAMPLE_FULL_PATH> > cd
  • cat cd
  • /bin/sh -c chmod 777 cd
  • chmod 777 cd
  • /bin/sh -c cd /sbin/; cat tftp > tftp-cpy; cat <SAMPLE_FULL_PATH> > tftp
  • /bin/sh -c cd /sbin/; cat rm > rm-cpy; cat <SAMPLE_FULL_PATH> > rm
  • /bin/sh -c cd /sbin/; cat kill > kill-cpy; cat <SAMPLE_FULL_PATH> > kill
  • /bin/sh -c cd /sbin/; cat cd > cd-cpy; cat <SAMPLE_FULL_PATH> > cd
Performs operations with the file system:
Creates or modifies files:
  • /bin/tftp-cpy
  • /bin/tftp
  • /bin/rm-cpy
  • /bin/rm
  • /bin/kill-cpy
  • /bin/kill
  • /bin/cd-cpy
  • /bin/cd
  • /sbin/tftp-cpy
  • /sbin/tftp
  • /sbin/rm-cpy
  • /sbin/rm
  • /sbin/kill-cpy
  • /sbin/kill
  • /sbin/cd-cpy
  • /sbin/cd
Network activity:
Awaits incoming connections on ports:
  • 19#.##8.217.50:8888
Establishes connection:
  • 8.#.8.8:53
  • 19#.##.97.85:9090

Curing recommendations


Linux

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