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Linux.Siggen.2640

Added to the Dr.Web virus database: 2020-04-04

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/init.d/python3.O
  • /etc/init.d/.depend.boot
  • /etc/init.d/.depend.start
  • /etc/init.d/.depend.stop
Creates or modifies the following symlinks:
  • /etc/rc1.d/S90python3.O
  • /etc/rc2.d/S90python3.O
  • /etc/rc3.d/S90python3.O
  • /etc/rc4.d/S90python3.O
  • /etc/rc5.d/S90python3.O
  • /etc/rc2.d/S01python3.O
  • /etc/rc3.d/S01python3.O
  • /etc/rc4.d/S01python3.O
  • /etc/rc5.d/S01python3.O
Malicious functions:
Removes itself
Launches itself as a daemon
Substitutes application name for:
  • [kworker/1:1]
Modifies firewall settings:
  • /sbin/iptables -I INPUT -p tcp --dport 8888 -j ACCEPT
Manages services:
  • update-rc.d <SAMPLE> remove
  • update-rc.d python3.O defaults
  • systemctl daemon-reload
Launches processes:
  • sh -c /sbin/iptables -I INPUT -p tcp --dport 8888 -j ACCEPT
  • chkconfig --add python3.O
  • /sbin/insserv
  • /sbin/insserv python3.O
Performs operations with the file system:
Creates or modifies files:
  • /tmp/tmp.lck
  • /usr/bin/python3.O
Deletes files:
  • /etc/init.d/<SAMPLE>
  • /etc/rc1.d/S90<SAMPLE>
  • /etc/rc2.d/S90<SAMPLE>
  • /etc/rc3.d/S90<SAMPLE>
  • /etc/rc4.d/S90<SAMPLE>
  • /etc/rc5.d/S90<SAMPLE>
  • /etc/rc1.d/S90python3.O
  • /etc/rc2.d/S90python3.O
  • /etc/rc3.d/S90python3.O
  • /etc/rc4.d/S90python3.O
  • /etc/rc5.d/S90python3.O
  • /etc/rc.d/rc1.d/S90python3.O
  • /etc/rc.d/rc2.d/S90python3.O
  • /etc/rc.d/rc3.d/S90python3.O
  • /etc/rc.d/rc4.d/S90python3.O
  • /etc/rc.d/rc5.d/S90python3.O
Locks files:
  • /tmp/tmp.lck
Network activity:
Awaits incoming connections on ports:
  • 0.0.0.0:8888
Establishes connection:
  • 45.###.165.39:80

Curing recommendations


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