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Linux.Siggen.7630

Added to the Dr.Web virus database: 2024-06-14

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/init.d/dpkg-deb-package
  • /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
  • /var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Launches processes:
  • grep Port
  • <0x232>
  • ps aux
  • hostname -I
  • sed -e s/^ *//
  • /tmp/e5662672-7899-4be6-9120-6381dc2ee433 kworker/R-debug
  • <0x1c9>
  • /tmp/-bash-c7f2584f-7a0e-40c8-81fb-a199f31ef476 -c -p 80 -p 8080 -p 443 -tls -dp 80 -dp 8080 -dp 443 -tls -d
  • cat /etc/ssh/sshd_config
  • grep /etc/cron
  • <0xad>
  • /usr/bin/mawk awk /[zZ]/ && !a[$2]++ {print $2}
  • cut -d: -f2
  • grep -c ^processor /proc/cpuinfo
  • grep -v grep
  • ps x
  • grep -v /usr/sbin/httpd
  • 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
  • head -n 1
  • wc -l
  • ps -A -ostat,ppid
  • whoami
  • <0x162>
  • /usr/bin/mawk awk {if($3>30.0) print $2}
  • /usr/bin/mawk awk {print $1}
  • grep -v -- -bash[[:space:]]*$
  • /tmp/-bash-c7f2584f-7a0e-40c8-81fb-a199f31ef476 -c -p 80 -p 8080 -p 443 -tls -dp 80 -dp 8080 -dp 443 -tls -d -pwn
  • grep -- -bash[[:space:]]*$
  • grep -m 1 model name /proc/cpuinfo
  • /usr/bin/mawk awk {print \x22-\x22$2}
  • hostname
  • id -u
  • sed -e s/$//
Kills the following processes:
  • ps
Performs operations with the file system:
Modifies file access rights:
  • /tmp/e5662672-7899-4be6-9120-6381dc2ee433
  • /etc/init.d/dpkg-deb-package
  • /usr/bin/dpkg-debian
Creates or modifies files:
  • /tmp/e5662672-7899-4be6-9120-6381dc2ee433
  • /tmp/4eaf1dc7-fa21-41a1-8ce7-35f8ddbfa055
  • /etc/systemd/system/dpkg-deb-package.service
  • /usr/bin/dpkg-debian
  • /tmp/-bash-c7f2584f-7a0e-40c8-81fb-a199f31ef476
  • /dev/shm/.klibsystem5
  • /var/spool/cron/.lib-knlib4
  • /etc/anacrontab
  • /tmp/.lock
  • /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
Locks files:
  • /tmp/.lock
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:10444
Establishes connection:
  • 0.0.0.0:10444
  • 0.0.0.0:59475
  • 0.0.0.0:444
  • 85.###.56.107:80
DNS ASK:
  • ru#.##-demand.pw
Sends data to the following servers:
  • 85.###.56.107:80
Receives data from the following servers:
  • 85.###.56.107:80
Other:
Collects OS information
Collects CPU information
Collects RAM information
Collects information about network activity

Curing recommendations


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