Linux.Siggen.702

Added to the Dr.Web virus database: 2018-07-07

Virus description added: 2018-07-07

To ensure autorun and distribution:

Creates or modifies the following files:

Malicious functions:

Launches itself as a daemon

Substitutes application name for:

Modifies router settings:

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
crontab -l
grep -v <SAMPLE_FULL_PATH>
grep <SAMPLE_FULL_PATH>
sh -c echo \"0:2345:respawn:<SAMPLE_FULL_PATH>\" >> /etc/inittab2
sh -c cat /etc/inittab2 > /etc/inittab
crontab -
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
/bin/uname -n
cp -f <SAMPLE_FULL_PATH> /dev/shm/<SAMPLE>
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

Performs operations with the file system:

Modifies file access rights:

Creates or modifies files:

Deletes files:

Network activity:

Awaits incoming connections on ports:

Connects to the following servers over the IRC protocol:

Server: 46.##9.233.35; Command: NICK x86|a|0|3444914|unknown\nUSER muhstik localhost localhost :muhstik-11052018\n