Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/profile.d/bash.cfg.sh
- /etc/crontab
- /etc/init.d/apparmor
- /etc/init.d/cron
- /etc/init.d/dbus
- /etc/init.d/hwclock.sh
- /etc/init.d/kmod
- /etc/init.d/networking
- /etc/init.d/procps
- /etc/init.d/rsyslog
- /etc/init.d/ssh
- /etc/init.d/sudo
Malicious functions:
Manages services:
- ['systemctl', 'daemon-reload']
- ['systemctl', 'enable', 'quotaon.service']
- ['systemctl', 'start', 'quotaon.service']
Launches processes:
- /bin/bash -c cd /boot;systemctl daemon-reload;systemctl enable quotaon.service;systemctl start quotaon.service;journalctl -xe --no-pager
- journalctl -xe --no-pager
- /bin/bash -c cd /boot;ausearch -c \x27system.pub\x27 --raw | audit2allow -M my-Systemmod;semodule -X 300 -i my-Systemmod.pp
- <SAMPLE_FULL_PATH> \x0a
- /bin/bash -c echo \x22*/1 * * * * root /.mod \x22 >> /etc/crontab
Performs operations with the file system:
Modifies file access rights:
- /boot/system.pub
- /etc/profile.d/bash.cfg
- /usr/lib/libgdi.so.0.8.2
- /usr/lib/system.mark
Creates or modifies files:
- /etc/.cfg
- /.mod
Deletes files:
- /etc/.ffff4444
Changes time of creation/access/modification of files:
- <SAMPLE_FULL_PATH>
- /boot/system.pub
- /etc/profile.d/bash.cfg
- /usr/lib/libgdi.so.0.8.2
- /lib/system.mark
- /etc/init.d/apparmor
- /etc/init.d/cron
- /etc/init.d/dbus
- /etc/init.d/hwclock.sh
- /etc/init.d/kmod
- /etc/init.d/networking
- /etc/init.d/procps
- /etc/init.d/rsyslog
- /etc/init.d/ssh
- /etc/init.d/sudo
