Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /var/spool/cron/crontabs/root
Malicious functions:
Gets access to SSH keys
- /root/.ssh/id_rsa
- /root/.ssh/id_rsa/.ssh/id_ed25519
- /root/.ssh/id_rsa/.ssh/id_ed25519/.ssh/id_dsa
- /home/user/.ssh/id_rsa
- /home/user/.ssh/id_rsa/.ssh/id_ed25519
- /home/user/.ssh/id_rsa/.ssh/id_ed25519/.ssh/id_dsa
Substitutes application name for:
- apache2
Launches processes:
- ufw allow 24816
- iptables -I OUTPUT -p tcp --dport 24816 -j ACCEPT
- iptables -I INPUT -p tcp --dport 24816 -j ACCEPT
- (crontab -l; printf \x27@reboot <SAMPLE_FULL_PATH> \x220|0\x22 noa\x0a\x27) | crontab -
- /usr/sbin/xtables-nft-multi iptables -I OUTPUT -p tcp --dport 24816 -j ACCEPT
- firewall-cmd --permanent --add-port 24816/tcp
- crontab -
- crontab -l
- /usr/sbin/xtables-nft-multi iptables -I INPUT -p tcp --dport 24816 -j ACCEPT
Kills the following processes:
- <SAMPLE>
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.loZ7VT
Creates or modifies files:
- /var/spool/cron/crontabs/tmp.loZ7VT
Changes time of creation/access/modification of files:
- /var/spool/cron/crontabs
Network activity:
Awaits incoming connections on ports:
- 0.0.0.0:24816
- 0.0.0.0:41297
Establishes connection:
- 8.#.8.8:53
Attacks using a special dictionary (brute-force technique) via the SSH protocol
DNS ASK:
- mi###er.online