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Linux.BackDoor.Fgt.1993

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
  • sh -c pkill -9 \"12\"
  • sh -c pkill -9 13
  • pkill -9 13
  • sh -c pkill -9 \"13\"
  • sh -c pkill -9 14
  • pkill -9 14
  • sh -c pkill -9 \"14\"
  • sh -c pkill -9 15
  • pkill -9 15
  • sh -c pkill -9 \"15\"
  • sh -c pkill -9 16
  • pkill -9 16
  • sh -c pkill -9 \"16\"
  • sh -c pkill -9 17
  • pkill -9 17
  • sh -c pkill -9 \"17\"
  • sh -c pkill -9 18
  • pkill -9 18
  • sh -c pkill -9 \"18\"
  • sh -c pkill -9 19
  • pkill -9 19
  • sh -c pkill -9 \"19\"
  • sh -c pkill -9 2
  • pkill -9 2
  • sh -c pkill -9 \"2\"
  • sh -c pkill -9 203
  • pkill -9 203
  • sh -c pkill -9 \"203\"
  • sh -c pkill -9 4
  • pkill -9 4
  • sh -c pkill -9 \"4\"
  • sh -c pkill -9 5
  • pkill -9 5
  • sh -c pkill -9 \"5\"
  • sh -c pkill -9 6
  • pkill -9 6
  • sh -c pkill -9 \"6\"
  • sh -c pkill -9 7
  • pkill -9 7
  • sh -c pkill -9 \"7\"
  • sh -c pkill -9 8
  • pkill -9 8
  • sh -c pkill -9 \"8\"
  • sh -c pkill -9 9
  • pkill -9 9
  • sh -c pkill -9 \"9\"
  • sh -c pkill -9 [A4]*
  • pkill -9 [A4]*
Kills system processes:
  • sshd
Kills the following processes:
  • kworker/0:1
  • scsi_eh_1
  • scsi_tmf_1
  • kworker/u2:1
  • kworker/0:1H
  • jbd2/sda1-8
  • kworker/u2:0
  • kworker/u2:2
  • kworker/u2:3
  • kworker/u2:4
  • kworker/0:2
  • ext4-rsv-conver
  • exim4
  • ipv6_addrconf
  • systemd
  • kthreadd
  • ksoftirqd/0
  • kworker/0:0
  • kworker/0:0H
  • watchdog/0
  • khelper
  • kdevtmpfs
  • netns
  • khungtaskd
  • writeback
  • ksmd
  • crypto
  • kintegrityd
  • bioset
  • kblockd
  • ata_sff
  • rpciod
  • kswapd0
  • fsnotify_mark
  • nfsiod
  • kthrotld
  • scsi_eh_0
  • scsi_tmf_0
  • deferwq
  • kauditd
  • systemd-journal
  • systemd-udevd
  • khubd
  • dhclient
  • kworker/0:3
  • rpcbind
  • rpc.statd
  • rpc.idmapd
  • cron
  • atd
  • systemd-logind
  • rsyslogd
  • dbus-daemon
  • agetty
  • bash
  • run.sh
  • <SAMPLE>
  • /bin/sh
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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