Linux.Siggen.2038
Added to the Dr.Web virus database:
2019-07-29
Virus description added:
2019-07-29
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/cron.d/root
- /var/spool/cron/crontabs/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
Compiles a program from source codes:
- gcc /usr/local/lib/libboost_threads.c -Wall -shared -fPIC -ldl -o /usr/local/lib/libboost_threads.so
Manages services:
- systemctl enable sshservice
- /usr/sbin/update-rc.d sshservice defaults
- systemctl daemon-reload
- /usr/sbin/update-rc.d sshservice enable
Launches processes:
- <SAMPLE_FULL_PATH>
- /usr/local/sbin/libexeced
- /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
- /bin/sh -c chattr -i /etc/ld.so.preload
- chattr -i /etc/ld.so.preload
- /bin/sh -c chattr -i /usr/local/lib/libboost_threads.so
- chattr -i /usr/local/lib/libboost_threads.so
- /bin/sh -c chattr -i /usr/local/lib/libboost_threads.c
- chattr -i /usr/local/lib/libboost_threads.c
- /bin/sh -c export PATH=$PATH:/bin:/usr/bin:/sbin:/usr/local/bin:/usr/sbin;gcc /usr/local/lib/libboost_threads.c -Wall -shared -fPIC -ldl -o /usr/local/lib/libboost_threads.so
Performs operations with the file system:
Modifies file access rights:
- /etc/hosts
- /etc/cron.d/root
- /var/spool/cron/root
- /var/spool/cron/crontabs/root
- /usr/local/lib/libboost_threads.c
- /usr/local/lib/libboost_threads.so
- /etc/ld.so.preload
Creates or modifies files:
- /etc/hosts
- /var/spool/cron/root
- /usr/local/sbin/libexeced
- /usr/local/sbin/sshd
- /usr/lib/systemd/system/sshservice.service
- /usr/local/lib/libboost_threads.c
- /tmp/ccorU4N4.s
- /tmp/cchBxOLe.o
- /tmp/ccNduDSq.res
- /tmp/ccvA1Lzg.c
- /tmp/ccznr6et.o
- /tmp/ccwZGhVF.ld
- /tmp/ccAzqGBS.le
- /usr/local/lib/libboost_threads.so
- /etc/ld.so.preload
- /tmp/.XImunix
Deletes files:
- /etc/ld.so.preload
- /usr/local/lib/libboost_threads.so
- /usr/local/lib/libboost_threads.c
- /tmp/ccwZGhVF.ld
- /tmp/ccAzqGBS.le
- /tmp/ccvA1Lzg.c
- /tmp/ccznr6et.o
- /tmp/ccNduDSq.res
- /tmp/cchBxOLe.o
- /tmp/ccorU4N4.s
Network activity:
Awaits incoming connections on ports:
Establishes connection:
- 127.0.0.1:65533
- 16#.##.156.147:51640
DNS ASK:
Sends data to the following servers:
Receives data from the following servers:
Curing recommendations
Linux
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