Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/profile.d/bash.cfg
- /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
- /etc/init.d/udev
- /etc/init.d/dns-udp4
- /etc/profile.d/gateway.sh
Creates or modifies the following symlinks:
- /etc/rc2.d/S01dns-udp4
- /etc/rc3.d/S01dns-udp4
- /etc/rc4.d/S01dns-udp4
- /etc/rc5.d/S01dns-udp4
Malicious functions:
Launches itself as a daemon
Manages services:
- ['systemctl', 'daemon-reload']
- ['systemctl', 'enable', 'quotaon.service']
- ['systemctl', 'start', 'quotaon.service']
- ['systemctl', 'list-unit-files', '--full', '--type=socket']
- ['systemctl', 'start', 'cron.service']
- ['systemctl', 'start', 'crond.service']
Launches processes:
- <SAMPLE_FULL_PATH> \x0a
- sed -ne s/\x5c.socket\x5cs*[a-z]*\x5cs*$/.socket/p
- /usr/bin/perl /usr/sbin/update-rc.d dns-udp4 defaults
- mount -o bind /tmp/ /proc/486
- /bin/sh /usr/sbin/service cron start
- /bin/bash -c cd /boot;systemctl daemon-reload;systemctl enable quotaon.service;systemctl start quotaon.service;journalctl -xe --no-pager
- /bin/bash -c echo \x22*/1 * * * * root /.mod \x22 >> /etc/crontab
- basename /usr/sbin/service
- 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
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/.ffff4444
- /etc/.cfg
- /boot/system.pub
- /usr/lib/libgdi.so.0.8.2
- /.mod
- /usr/lib/system.mark
- /dev/watchdog
- /dev/misc/watchdog
Deletes files:
- /etc/.ffff4444
Mounts file systems:
- /tmp
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
- /etc/init.d/udev
Network activity:
Establishes connection:
- <LOCAL_DNS_SERVER>
- 8.#.8.8:53
- 15#.##.85.42:9528
Sends data to the following servers:
- <LOCAL_DNS_SERVER>
- 8.#.8.8:53
- 15#.##.85.42:9528
Receives data from the following servers:
- <LOCAL_DNS_SERVER>
- 8.#.8.8:53
- 15#.##.85.42:9528
