Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
- w00dbuwwdo8nh5l24s4di2lbnfqv3m5q
Launches processes:
- sh -c crontab -l | grep <SAMPLE_FULL_PATH> || (crontab -l ; echo \"* * * * * <SAMPLE_FULL_PATH> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- sh -c cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
- crontab -l
- grep <SAMPLE_FULL_PATH>
- cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
- sh -c crontab -l | grep /dev/shm/<SAMPLE> || (crontab -l ; echo \"* * * * * /dev/shm/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- crontab -
- sh -c cp -f <SAMPLE_FULL_PATH> /var/tmp/<SAMPLE>
- grep /dev/shm/<SAMPLE>
- cp -f <SAMPLE_FULL_PATH> /var/tmp/<SAMPLE>
- sh -c crontab -l | grep /var/tmp/<SAMPLE> || (crontab -l ; echo \"* * * * * /var/tmp/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- sh -c cp -f <SAMPLE_FULL_PATH> /var/lock/<SAMPLE>
- grep /var/tmp/<SAMPLE>
- cp -f <SAMPLE_FULL_PATH> /var/lock/<SAMPLE>
- sh -c crontab -l | grep /var/lock/<SAMPLE> || (crontab -l ; echo \"* * * * * /var/lock/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- sh -c cp -f <SAMPLE_FULL_PATH> /var/run/<SAMPLE>
- cp -f <SAMPLE_FULL_PATH> /var/run/<SAMPLE>
- sh -c crontab -l | grep /var/run/<SAMPLE> || (crontab -l ; echo \"* * * * * /var/run/<SAMPLE> > /dev/null 2>&1 &\") | crontab - > /dev/null 2>&1 &
- grep /var/run/<SAMPLE>
- grep /var/lock/<SAMPLE>
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.KhnJRC
- /var/spool/cron/crontabs/tmp.wJuBjk
- /var/spool/cron/crontabs/tmp.SlUof5
- /var/spool/cron/crontabs/tmp.bueEot
- /var/spool/cron/crontabs/tmp.0fKGoR
Creates or modifies files:
- /dev/shm/<SAMPLE>
- /var/spool/cron/crontabs/tmp.KhnJRC
- /usr/bin/crontab
- /var/spool/cron/crontabs/tmp.wJuBjk
- /var/tmp/<SAMPLE>
- /var/lock/<SAMPLE>
- /run/lock/<SAMPLE>
- /var/run/<SAMPLE>
- /run/<SAMPLE>
- /var/spool/cron/crontabs/tmp.SlUof5
- /var/spool/cron/crontabs/tmp.bueEot
- /var/spool/cron/crontabs/tmp.0fKGoR
Network activity:
Awaits incoming connections on ports:
- 127.0.0.1:48102
Establishes connection:
- 8.#.8.8:53
Connects to the following servers over the IRC protocol:
- Server: 51.##.124.148; Command: NICK ARM|a|1|840637|box-armhf \n
- Server: 51.##.124.148; Command: USER mb localhost 0 :2018 \n
- Server: 51.##.124.148; Command: PONG :4BF721DC \n
- Server: 51.##.124.148; Command: JOIN #s \n
DNS ASK:
- ir#.##-zahlung.eu
Other:
Collects CPU information