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Linux.Siggen.6427

Added to the Dr.Web virus database: 2024-01-15

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:
  • systemd
Launches processes:
  • crontab -l
  • iptables -I INPUT -p tcp --dport 21757 -j ACCEPT
  • /usr/sbin/xtables-nft-multi iptables -I INPUT -p tcp --dport 21757 -j ACCEPT
  • crontab -
  • echo \x22@reboot <SAMPLE_FULL_PATH>\x22 | crontab -
Kills the following processes:
  • <SAMPLE>
Performs operations with the file system:
Modifies file access rights:
  • /var/spool/cron/crontabs/tmp.UL3dqf
Creates or modifies files:
  • /var/spool/cron/crontabs/tmp.UL3dqf
Changes time of creation/access/modification of files:
  • /var/spool/cron/crontabs

Curing recommendations


Linux

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