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Linux.Siggen.1410

Added to the Dr.Web virus database: 2019-02-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/init.d/loginfo
Creates or modifies the following symlinks:
  • /etc/rc2.d/S20loginfo
  • /etc/rc3.d/S20loginfo
  • /etc/rc4.d/S20loginfo
  • /etc/rc5.d/S20loginfo
Malicious functions:
Substitutes application name for:
  • [pubsfofri]
  • [kgrucfaqtsl]
  • [cnypaiaahih]
Launches processes:
  • /bin/sh -c /usr/bin/loginfo 0 &
  • /usr/bin/loginfo 0
  • sh -c id 2>/dev/null
  • id
  • sh -c uname -a 2>/dev/null
  • uname -a
  • sh -c whoami 2>/dev/null
  • whoami
  • sh -c cat /proc/cpuinfo 2>/dev/null
  • cat /proc/cpuinfo
  • sh -c cat /proc/meminfo 2>/dev/null
  • cat /proc/meminfo
  • sh -c cat /proc/version 2>/dev/null
  • cat /proc/version
  • sh -c cat /proc/partitions 2>/dev/null
  • cat /proc/partitions
  • sh -c cat /etc/*release /etc/issue 2>/dev/null
  • cat /etc/os-release /etc/issue
Kills the following processes:
  • /usr/bin/loginfo
Performs operations with the file system:
Modifies file access rights:
  • /usr/bin/loginfo
  • /etc/init.d/loginfo
Deletes folders:
  • <SAMPLE_FULL_PATH>
Creates symlinks:
  • /etc/rcS.d/S20loginfo
Creates or modifies files:
  • /usr/bin/loginfo
  • /usr/bin/.HKNLMgjwO
Deletes files:
  • <SAMPLE_FULL_PATH>
Network activity:
Establishes connection:
  • <LOCAL_DNS_SERVER>
  • 66.##.157.95:443
DNS ASK:
  • ns#.####enillivraytine.com
Sends data to the following servers:
  • 66.##.157.95:443
Receives data from the following servers:
  • 66.##.157.95:443
Other:
Collects OS information
Collects CPU information
Collects RAM information

Curing recommendations


Linux

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