Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /var/spool/cron/crontabs/root
- /etc/init.d/mushi_1723370499
- /etc/rc.d/mushi_1723370503
Malicious functions:
Launches itself as a daemon
Manages services:
- ['systemctl', 'daemon-reload']
- ['systemctl', 'enable', '/etc/systemd/system/mushi1723370503.service']
Launches processes:
- cp \x27<SAMPLE_FULL_PATH>\x27 \x27/usr/bin/335e32d2\x27
- cp <SAMPLE_FULL_PATH> /usr/bin/335e32d2
- chmod +x /etc/init.d/mushi_1723370499
- systemctl daemon-reload && systemctl enable /etc/systemd/system/mushi1723370503.service
- chmod +x \x27/etc/init.d/mushi_1723370499\x27 && update-rc.d \x27/etc/init.d/mushi_1723370499\x27 defaults
- crontab -
- crontab -l
- (crontab -l 2>/dev/null; echo \x22@reboot /usr/bin/335e32d2\x22) | crontab -
- /usr/bin/perl /usr/sbin/update-rc.d /etc/init.d/mushi_1723370499 defaults
Kills the following processes:
- <SAMPLE>
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.XwwrHS
- /etc/init.d/mushi_1723370499
Creates or modifies files:
- /usr/bin/335e32d2
- /var/spool/cron/crontabs/tmp.XwwrHS
- /etc/systemd/system/mushi1723370503.service
Changes time of creation/access/modification of files:
- /var/spool/cron/crontabs
Network activity:
Establishes connection:
- 127.0.0.1:37163
- 1.#.1.1:53
- 18#.#.171.36:51515
DNS ASK:
- 8q.si
Sends data to the following servers:
- 18#.#.171.36:51515
Receives data from the following servers:
- 18#.#.171.36:51515
