Linux.BackDoor.Tsunami.757

Added to the Dr.Web virus database: 2017-08-25

Virus description added: 2017-08-25

To ensure autorun and distribution:

Creates or modifies the following files:

Malicious functions:

Launches itself as a daemon

Modifies router settings:

Launches processes:

rm -rf /var/run/wgsh
rm -rf /var/run/bbsh
rm -rf /var/run/pty
cat /tmp/.xs/*.pid
rm -rf /tmp/.xs/*
sh -c chmod 700 <SAMPLE_FULL_PATH> > /dev/null 2>&1 &
sh -c touch -acmr /bin/ls <SAMPLE_FULL_PATH>
chmod 700 <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
crontab -l
grep -v <SAMPLE_FULL_PATH>
grep -v no cron
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
/bin/uname -n

Attempts to kill the following processes:

Performs operations with the file system:

Modifies file access rights:

Creates or modifies files:

Deletes files:

Network activity:

Awaits incoming connections on ports:

Establishes connection:

Other:

Collects OS information