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Linux.BackDoor.Tsunami.986

Added to the Dr.Web virus database: 2018-08-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /var/spool/cron/crontabs/root
Malicious functions:
Launches itself as a daemon
Launches processes:
  • sh -c (crontab -l | grep -v \"/<SAMPLE>\" | grep -v \"no cron\" > /var/run/.x001804289383) > /dev/null 2>&1
  • crontab -l
  • grep -v /<SAMPLE>
  • grep -v no cron
  • sh -c crontab /var/run/.x001804289383
  • crontab /var/run/.x001804289383
  • sh -c /bin/uname -n
  • /bin/uname -n
Performs operations with the file system:
Modifies file access rights:
  • <SAMPLE_FULL_PATH>
  • /var/tmp/<SAMPLE>
  • /run/<SAMPLE>
  • /run/lock/<SAMPLE>
  • /dev/shm/<SAMPLE>
  • /tmp/<SAMPLE>
  • /var/spool/cron/crontabs/tmp.SPKrLK
Creates or modifies files:
  • /var/run/.x001804289383
  • <SAMPLE_FULL_PATH>
  • /run/.x001804289383
  • /var/tmp/<SAMPLE>
  • /var/run/<SAMPLE>
  • /run/<SAMPLE>
  • /var/lock/<SAMPLE>
  • /run/lock/<SAMPLE>
  • /dev/shm/<SAMPLE>
  • /tmp/<SAMPLE>
  • /var/spool/cron/crontabs/tmp.SPKrLK
Deletes files:
  • /var/run/.x001804289383
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:61100
Connects to the following servers over the IRC protocol:
  • Server: 45.##.87.147; Command: NICK TT|0|986185|box-i386\nUSER TT localhost localhost :1.0\n
Other:
Collects OS information

Curing recommendations


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