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Linux.Siggen.6707

Added to the Dr.Web virus database: 2024-03-09

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /var/spool/cron/crontabs/root
Malicious functions:
Launches processes:
  • /bin/sh ./gTTM198ngk
  • sleep 2
  • /usr/sbin/killall5 pidof FijZK0os7r
  • cat
  • nohup ./gTTM198ngk
  • crontab cron.d
  • chmod +x /tmp/.system/./gTTM198ngk
  • /bin/bash /dev/fd/3
  • mkdir -p /tmp/.
  • head -c 10
  • crontab -l
  • ln -s /tmp/.system/./s /tmp/.system/./FijZK0os7r
  • sleep 4h
  • mkdir -p /tmp/.system/.
  • chmod u+x /tmp/.system/./79YPRCp7V0
  • head /dev/urandom
  • cp ./s /tmp/.system/./
  • grep 79YPRCp7V0
  • tr -dc A-Za-z0-9
  • mkdir -p /dev/shm/.
  • mkdir -p /var/tmp/.
Performs operations with the file system:
Modifies file access rights:
  • /tmp/.system/79YPRCp7V0
  • /tmp/.system/gTTM198ngk
  • /var/spool/cron/crontabs/tmp.uag0GR
Creates folders:
  • /tmp/.system
Creates symlinks:
  • /tmp/.system/FijZK0os7r
Creates or modifies files:
  • /tmp/.system/gTTM198ngk
  • /tmp/.system/79YPRCp7V0
  • /tmp/.system/cron.d
  • /var/spool/cron/crontabs/tmp.uag0GR
  • /tmp/.system/.bash.pid
Changes time of creation/access/modification of files:
  • /var/spool/cron/crontabs

Curing recommendations


Linux

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