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/profile.d/gateway.sh
Malicious functions:
Launches itself as a daemon
Replaces the following system files:
- /usr/bin/ps
- /usr/bin/ss
- /usr/bin/lsof
Manages services:
- ['systemctl', 'list-unit-files', '--full', '--type=socket']
- ['systemctl', 'start', 'crond.service']
- ['systemctl', 'daemon-reload']
- ['systemctl', 'enable', 'quotaoff.service']
- ['systemctl', 'start', 'quotaoff.service']
- ['systemctl', 'start', 'cron.service']
Launches processes:
- basename /usr/sbin/service
- /bin/sh /usr/sbin/service cron start
- /bin/bash -c cd /boot;ausearch -c \x27System.mod\x27 --raw | audit2allow -M my-Systemmod;semodule -X 300 -i my-Systemmod.pp
- renice -20 485
- /bin/bash -c cd /boot;systemctl daemon-reload;systemctl enable quotaoff.service;systemctl start quotaoff.service;journalctl -xe --no-pager
- journalctl -xe --no-pager
- mount -o bind /tmp/ /proc/485
- /bin/bash -c /etc/32675&
- /bin/bash -c echo \x22*/1 * * * * root /.mod \x22 >> /etc/crontab
- /bin/sh /usr/sbin/service crond start
- sed -ne s/\x5c.socket\x5cs*[a-z]*\x5cs*$/.socket/p
- <SAMPLE_FULL_PATH> \x0a
Performs operations with the file system:
Modifies file access rights:
- /etc/opt.services.cfg
- /etc/32675
- /boot/System.mod
- /etc/profile.d/bash_cfg
- /usr/lib/libgdi.so.0.8.1
- /usr/lib/system-mark
- /usr/bin/include/ps
- /usr/bin/include/ss
- /usr/bin/include/ls
- /usr/bin/include/dir
- /usr/bin/include/find
- /usr/bin/include/lsof
- /usr/bin/ps
- /usr/bin/ss
- /usr/bin/ls
- /usr/bin/dir
- /usr/bin/find
- /usr/bin/lsof
Creates folders:
- /usr/bin/include
Creates or modifies files:
- /dev/.walk.lod
- /etc/.ares
- /etc/.walk
- /dev/.old
- /dev/.img
- /etc/opt.services.cfg
- /etc/32675
- /boot/System.mod
- /usr/lib/systemd/system/quotaoff.service
- /usr/lib/libgdi.so.0.8.1
- /.mod
- /usr/lib/system-mark
- /usr/bin/include/ps
- /usr/bin/include/ss
- /usr/bin/include/ls
- /usr/bin/include/dir
- /usr/bin/include/find
- /usr/bin/include/lsof
- /usr/bin/ls
- /usr/bin/dir
- /usr/bin/find
- /dev/watchdog
- /dev/misc/watchdog
Deletes files:
- /etc/.ares
Locks files:
- /dev/.walk.lod
- /dev/.img
Mounts file systems:
- /tmp
Changes time of creation/access/modification of files:
- /etc/opt.services.cfg
- /boot/System.mod
- /etc/profile.d/bash_cfg
- /usr/lib/libgdi.so.0.8.1
- /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
- <SAMPLE_FULL_PATH>
- /usr/bin/include/ps
- /usr/bin/include/ss
- /usr/bin/include/ls
- /usr/bin/include/dir
- /usr/bin/include/find
- /usr/bin/include/lsof
- /usr/bin/ps
- /usr/bin/ss
- /usr/bin/ls
- /usr/bin/dir
- /usr/bin/find
- /usr/bin/lsof
Network activity:
Establishes connection:
- <LOCAL_DNS_SERVER>
Sends data to the following servers:
- <LOCAL_DNS_SERVER>
Receives data from the following servers:
- <LOCAL_DNS_SERVER>
