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Linux.Siggen.7424

Added to the Dr.Web virus database: 2024-05-08

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:
  • command -v crontab >/dev/null 2>&1
  • /bin/sh /usr/bin/which httpd
  • iptables -I INPUT -p tcp --dport 34442 -j ACCEPT >/dev/null 2>&1
  • crontab -r >/dev/null 2>&1; echo \x22@reboot <SAMPLE_FULL_PATH>\x22 | crontab -
  • /usr/sbin/xtables-nft-multi iptables -I INPUT -p tcp --dport 34442 -j ACCEPT
  • command -v php >/dev/null 2>&1
  • crontab -
  • command -v nginx >/dev/null 2>&1
  • which apache2
  • /bin/sh /usr/bin/which apache2
  • which httpd
  • crontab -r
Performs operations with the file system:
Modifies file access rights:
  • /var/spool/cron/crontabs/tmp.nSdwfH
Creates or modifies files:
  • /var/spool/cron/crontabs/tmp.nSdwfH
Changes time of creation/access/modification of files:
  • /var/spool/cron/crontabs
Other:
Collects CPU information
Collects RAM information

Curing recommendations


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