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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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