Linux.Siggen.3814

Linux.Siggen.3814

Added to the Dr.Web virus database: 2021-03-25

Virus description added: 2021-03-25

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 rm -rf /var/run/wgsh > /dev/null 2>&1 &
sh -c rm -rf /var/run/bbsh > /dev/null 2>&1 &
rm -rf /var/run/wgsh
sh -c rm -rf /var/run/pty > /dev/null 2>&1 &
sh -c killall -9 arm > /dev/null 2>&1 &
rm -rf /var/run/pty
sh -c killall -9 mips > /dev/null 2>&1 &
sh -c killall -9 mipsel > /dev/null 2>&1 &
sh -c killall -9 powerpc > /dev/null 2>&1 &
sh -c killall -9 ppc > /dev/null 2>&1 &
sh -c killall -9 daemon.armv4l.mod > /dev/null 2>&1 &
sh -c killall -9 daemon.i686.mod > /dev/null 2>&1 &
sh -c killall -9 daemon.mips.mod > /dev/null 2>&1 &
sh -c killall -9 daemon.mipsel.mod > /dev/null 2>&1 &
sh -c kill -9 `cat /tmp/.xs/*.pid` > /dev/null 2>&1 &
sh -c rm -rf /tmp/.xs/* > /dev/null 2>&1 &
cat /tmp/.xs/*.pid
sh -c touch -acmr /bin/ls <SAMPLE_FULL_PATH>
rm -rf /tmp/.xs/*
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
sh -c /bin/uname -n
sh -c nvram get router_name
/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