Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- /etc/init.d/knlib
- /var/spool/cron/crontabs/root
- /etc/cron.d/.lib-knlib4
- /etc/cron.hourly/.lib-knlib4
- /etc/cron.daily/.lib-knlib4
- /etc/cron.weekly/.lib-knlib4
- /etc/cron.monthly/.lib-knlib4
Malicious functions:
Manages services:
- ['systemctl', 'daemon-reload']
- ['systemctl', 'enable', 'knlibe.service']
Launches processes:
- chattr -ia /etc/cron.daily/apt-compat
- hostname -I
- ps -A -ostat,ppid 2>/dev/null | awk \x27/[zZ]/ && !a[$2]++ {print $2}\x27 2>/dev/null | while read procid; do kill -9 $procid 2>/dev/null; done;if `id -u 2>/dev/null` -eq \x270\x27 ; then ps x 2>/dev/null | grep /etc/cron 2>/dev/null | grep -v grep 2>/dev/null | while read procid; do kill -9 $procid 2>/dev/null; done fi
- <0xa4>
- /usr/bin/mawk awk {print $1}
- chattr -ia /etc/cron.daily/man-db
- nohup /tmp/bin.64 -c -p 80 -p 8080 -p 443 -tls -dp 80 -dp 8080 -dp 443 -tls -d -pwn &
- whoami
- grep Port
- hostname
- chattr -ia /var/spool/cron/crontabs
- bash -c echo \x22* * * * * /home/.klibsystem5 >/dev/null 2>&1\x22 | crontab -
- grep -m 1 model name /proc/cpuinfo
- chattr +ia /etc/systemd/system/knlibe.service
- bash -c crontab -l
- /usr/bin/mawk awk {print \x22-\x22$2}
- bash -c rm -rf /etc/sysctl.conf ; echo fs.file-max = 2097152 > /etc/sysctl.conf ; sysctl -p ; ulimit -Hn ; ulimit -n 99999 -u 999999
- cp -f -r -- /bin/knlib /bin/klibsystem4
- crontab -l
- chattr -ia /etc/cron.daily/dpkg
- chattr -ia /etc/cron.daily/.placeholder
- crontab -r
- /tmp/bin.64 -c -p 80 -p 8080 -p 443 -tls -dp 80 -dp 8080 -dp 443 -tls -d -pwn &
- sed -e s/^ *//
- chattr -ia /etc/cron.weekly/man-db
- chattr -ia /etc/cron.d/e2scrub_all
- rm -rf -- klibsystem4
- chattr -ia /etc/cron.d/.placeholder
- /usr/bin/mawk awk /[zZ]/ && !a[$2]++ {print $2}
- grep -c ^processor /proc/cpuinfo
- rm -rf /etc/sysctl.conf
- chattr +ia /etc/init.d/knlib
- bash -c crontab -r
- /bin/bash /etc/init.d/knlib start
- chattr -ia /etc/cron.daily/logrotate
- crontab -
- cat /etc/ssh/sshd_config
- head -n 1
- sysctl -p
- cut -d: -f2
- nohup ./klibsystem4
- sed -e s/$//
- chattr -ia /etc/cron.monthly/.placeholder
- chattr +ia /bin/knlib
- chattr -ia /etc/cron.weekly/.placeholder
- ps -A -ostat,ppid
- chattr -ia /etc/cron.hourly/.placeholder
Performs operations with the file system:
Modifies file access rights:
- /etc/init.d/knlib
- /usr/bin/knlib
- /var/spool/cron/crontabs/tmp.hK6W6M
- /etc/cron.d/.lib-knlib4
- /var/spool/cron/.lib-knlib4
- /etc/cron.hourly/.lib-knlib4
- /etc/cron.daily/.lib-knlib4
- /etc/cron.weekly/.lib-knlib4
- /etc/cron.monthly/.lib-knlib4
- /etc/anacrontab
Modifies file owner:
- /var/spool/cron/crontabs
Creates folders:
- /var/spool/cron/crontabs
Deletes folders:
- /var/spool/cron/crontabs
Creates or modifies files:
- /etc/sysctl.conf
- /proc/sys/fs/file-max
- /tmp/.knipsystem4.lock
- /etc/systemd/system/knlibe.service
- /usr/bin/knlib
- /home/.klibsystem5
- /var/spool/cron/crontabs/tmp.hK6W6M
- /var/spool/cron/.lib-knlib4
- /etc/anacrontab
- /tmp/bi.64
- /tmp/bin.64
Deletes files:
- /etc/sysctl.conf
- /etc/cron.d/.placeholder
- /etc/cron.d/e2scrub_all
- /var/spool/cron/crontabs
- /etc/cron.hourly/.placeholder
- /etc/cron.daily/.placeholder
- /etc/cron.daily/apt-compat
- /etc/cron.daily/dpkg
- /etc/cron.daily/logrotate
- /etc/cron.daily/man-db
- /etc/cron.weekly/.placeholder
- /etc/cron.weekly/man-db
- /etc/cron.monthly/.placeholder
Locks files:
- /tmp/.knipsystem4.lock
Changes time of creation/access/modification of files:
- /var/spool/cron/crontabs
Network activity:
Establishes connection:
- 8.#.8.8:53
- 5.##.80.215:80
DNS ASK:
- ru#.#ck-dns.ws
Sends data to the following servers:
- 5.##.80.215:80
Receives data from the following servers:
- 5.##.80.215:80
Other:
Collects OS information
Collects CPU information
Collects RAM information
