Linux.Siggen.1702

Technical Information

To ensure autorun and distribution:

Creates or modifies the following files:

/etc/init.d/netdns
/etc/init.d/.depend.boot
/etc/init.d/.depend.start
/etc/init.d/.depend.stop

Creates or modifies the following symlinks:

/etc/rc0.d/K01netdns
/etc/rc1.d/K01netdns
/etc/rc2.d/S01netdns
/etc/rc3.d/S01netdns
/etc/rc4.d/S01netdns
/etc/rc5.d/S01netdns
/etc/rc6.d/K01netdns

Malicious functions:

Launches itself as a daemon

Manages services:

systemctl enable netdns
/usr/sbin/update-rc.d netdns defaults
systemctl daemon-reload

Launches processes:

<SAMPLE_FULL_PATH> [bioset]
<SAMPLE_FULL_PATH> [jbd2/vda1-8]
/bin/sh -c chattr -i /usr/lib/systemd/system/netdns.service
chattr -i /usr/lib/systemd/system/netdns.service
/bin/sh -c export PATH=$PATH:/bin:/usr/bin:/sbin:/usr/local/bin:/usr/sbin;chkconfig --add netdns
/bin/sh -c export PATH=$PATH:/bin:/usr/bin:/sbin:/usr/local/bin:/usr/sbin;systemctl enable netdns
/sbin/insserv netdns

Performs operations with the file system:

Creates or modifies files:

/tmp/.XIMunix
/usr/sbin/kerberods
/usr/lib/systemd/system/netdns.service

Locks files:

/tmp/.XIMunix

Network activity:

Establishes connection:

<LOCAL_DNS_SERVER>
17#.#8.123.25:9
[2########::f03c:91ff:fe70:2b9d]:9
19#.##8.0.0:8080
19#.##8.0.1:8080
19#.##8.0.2:8080
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HTTP GET requests:

id##t.me/

DNS ASK:

id##t.me

Technologies

Terminology

Training and education

Myths

Technical Information

Curing recommendations