Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /var/spool/cron/crontabs/root
- /etc/inittab
- /etc/rc.local
Malicious functions:
Modifies router settings:
- /bin/nvram
Launches processes:
- sh -c chmod 700 <SAMPLE_FULL_PATH> > /dev/null 2>&1 &
- sh -c touch -acmr /bin/ls <SAMPLE_FULL_PATH>
- chmod 700 <SAMPLE_FULL_PATH>
- touch -acmr /bin/ls <SAMPLE_FULL_PATH>
- sh -c (crontab -l | grep -v \"<SAMPLE_FULL_PATH>\" | grep -v \"no cron\" | grep -v \"lesshts/run.sh\" > /var/run/.x00740882966) > /dev/null 2>&1
- crontab -l
- grep -v no cron
- grep -v <SAMPLE_FULL_PATH>
- grep -v lesshts/run.sh
- sh -c echo \"* * * * * <SAMPLE_FULL_PATH> > /dev/null 2>&1 &\" >> /var/run/.x00740882966
- sh -c crontab /var/run/.x00740882966
- crontab /var/run/.x00740882966
- sh -c rm -rf /var/run/.x00740882966
- rm -rf /var/run/.x00740882966
- sh -c cat /etc/inittab | grep -v \"<SAMPLE_FULL_PATH>\" > /etc/inittab2
- cat /etc/inittab
- sh -c echo \"0:2345:respawn:<SAMPLE_FULL_PATH>\" >> /etc/inittab2
- sh -c cat /etc/inittab2 > /etc/inittab
- 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 /bin/uname -n
- sh -c nvram get router_name
- /bin/uname -n
Performs operations with the file system:
Modifies file access rights:
- <SAMPLE_FULL_PATH>
- /var/spool/cron/crontabs/tmp.dptbqk
Creates or modifies files:
- /var/run/.x00740882966
- /run/.x00740882966
- /var/spool/cron/crontabs/tmp.dptbqk
- /etc/inittab2
Deletes files:
- /var/run/.x00740882966
- /etc/inittab2
Network activity:
Awaits incoming connections on ports:
- 127.0.0.1:42071
Establishes connection:
- 10#.#.46.2:8080
- 20#.##.32.30:8080
- 66.###.182.1:8080
- 21#.##3.199.94:8080
- 19#.##.172.42:8080
