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:
- bash
Launches processes:
- crontab -r >/dev/null 2>&1; echo \x22@reboot <SAMPLE_FULL_PATH>\x22 | crontab -
- which httpd
- /bin/sh /usr/bin/which httpd
- which apache2
- /bin/sh /usr/bin/which apache2
- command -v php >/dev/null 2>&1
- command -v nginx >/dev/null 2>&1
- command -v crontab >/dev/null 2>&1
- iptables -I INPUT -p tcp --dport 25563 -j ACCEPT >/dev/null 2>&1
- crontab -r
- crontab -
- /usr/sbin/xtables-nft-multi iptables -I INPUT -p tcp --dport 25563 -j ACCEPT
Kills the following processes:
- <SAMPLE>
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.gfz8ls
Creates or modifies files:
- /var/spool/cron/crontabs/tmp.gfz8ls
Changes time of creation/access/modification of files:
- /var/spool/cron/crontabs
Other:
Collects CPU information
Collects RAM information