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Linux.Siggen.844

Added to the Dr.Web virus database: 2018-08-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/init.d/ssh
Malicious functions:
Launches itself as a daemon
Launches processes:
  • sh -c cd /etc/init.d/
  • sh -c mv /tmp/.sendmail /etc/init.d/ssh
  • mv /tmp/.sendmail /etc/init.d/ssh
  • sh -c chmod 755 /etc/init.d/ssh
  • chmod 755 /etc/init.d/ssh
  • sh -c cp -rf <SAMPLE_FULL_PATH> /lib/.zaxxlog>/dev/null
  • cp -rf <SAMPLE_FULL_PATH> /lib/.zaxxlog
  • sh -c chmod 755 /lib/.zaxxlog
  • chmod 755 /lib/.zaxxlog
Performs operations with the file system:
Modifies file access rights:
  • /etc/init.d/ssh
  • /lib/.zaxxlog
Creates or modifies files:
  • /tmp/.sendmail
  • /lib/.zaxxlog
Deletes files:
  • /tmp/.sendmail
  • /etc/init.d/ssh
  • /lib/.zaxxlog
Network activity:
Establishes connection:
  • 17#.##9.105.186:81
DNS ASK:
  • 17#.#39.105.186

Curing recommendations


Linux

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