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Linux.Siggen.3524
Added to the Dr.Web virus database:
2021-01-15
Virus description added:
2021-01-15
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
/etc/init.d/.depend.boot
/etc/init.d/.depend.start
/etc/init.d/.depend.stop
/etc/init.d/durex
Creates or modifies the following symlinks:
/etc/rc0.d/K01durex
/etc/rc1.d/K01durex
/etc/rc2.d/S02durex
/etc/rc3.d/S02durex
/etc/rc4.d/S02durex
/etc/rc5.d/S02durex
/etc/rc6.d/K01durex
Malicious functions:
Launches itself as a daemon
Manages services:
update-rc.d -f durex remove
systemctl daemon-reload
update-rc.d durex defaults
update-rc.d durex enable
Launches processes:
sh -c chmod 777 /usr/sbin/Durex
chmod 777 /usr/sbin/Durex
sh -c /usr/sbin/Durex
/usr/sbin/Durex
sh -c xxd -r -p /usr/local/lib/durex.so /usr/local/lib/durex.so
xxd -r -p /usr/local/lib/durex.so /usr/local/lib/durex.so
sh -c update-rc.d -f durex remove
/sbin/insserv -f
sh -c chmod +x /etc/init.d/durex
chmod +x /etc/init.d/durex
sh -c update-rc.d durex defaults
/sbin/insserv durex
sh -c update-rc.d durex enable
Performs operations with the file system:
Modifies file access rights:
/usr/sbin/Durex
/etc/init.d/durex
Creates or modifies files:
/usr/sbin/Durex
/usr/local/lib/durex.so
/etc/ld.so.preload
Deletes files:
/usr/sbin/Durex
/usr/local/lib/durex.so
/etc/ld.so.preload
/etc/init.d/durex
Network activity:
Awaits incoming connections on ports:
Curing recommendations
Linux
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