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Linux.BackDoor.Fgt.1981

Added to the Dr.Web virus database: 2019-02-14

Virus description added:

Technical Information

Malicious functions:
Launches itself as a daemon
Modifies firewall settings:
  • iptables -F
  • /sbin/iptables -F
  • /sbin/iptables -X
Manages services:
  • service iptables stop
  • systemctl stop iptables.service
  • service firewalld stop
  • systemctl stop firewalld.service
Launches processes:
  • sh -c rm -rf /tmp/* /var/tmp/* /tmp/.* /var/tmp/.*
  • rm -rf /tmp/* /var/tmp/* /tmp/. /tmp/.. /tmp/.ICE-unix /tmp/.Test-unix /tmp/.X11-unix /tmp/.XIM-unix /tmp/.font-unix /var/tmp/. /var/tmp/..
  • sh -c rm -rf /var/log/wtmp
  • rm -rf /var/log/wtmp
  • sh -c rm -rf /bin/netstat
  • rm -rf /bin/netstat
  • sh -c iptables -F
  • sh -c pkill -9 perl
  • pkill -9 perl
  • sh -c pkill -9 python
  • pkill -9 python
  • sh -c service iptables stop
  • sh -c /sbin/iptables -F; /sbin/iptables -X
  • sh -c service firewalld stop
  • sh -c rm -rf ~/.bash_history
  • rm -rf /root/.bash_history
  • sh -c history -c;history -w
  • sh -c rm -rf /var/log/lastlog; history -c
  • rm -rf /var/log/lastlog
  • sh -c pkill -9 1
  • pkill -9 1
  • sh -c pkill -9 \"1\"
  • sh -c pkill -9 10
  • pkill -9 10
  • sh -c pkill -9 \"10\"
  • sh -c pkill -9 11
  • pkill -9 11
  • sh -c pkill -9 \"11\"
  • sh -c pkill -9 12
  • pkill -9 12
Kills the following processes:
  • kworker/0:1
  • scsi_eh_1
  • scsi_tmf_1
  • kworker/u2:1
  • kworker/0:1H
  • jbd2/sda1-8
Performs operations with the file system:
Creates or modifies files:
  • /etc/resolv.conf
Deletes files:
  • /tmp/*
  • /var/tmp/*
  • /var/log/wtmp
  • /bin/netstat
  • /root/.bash_history
  • /var/log/lastlog
Network activity:
Establishes connection:
  • 8.#.8.8:53
  • 46.##.165.131:17769
Sends data to the following servers:
  • 46.##.165.131:17769
Other:
Collects CPU information

Curing recommendations


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