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Linux.Siggen.3578

Added to the Dr.Web virus database: 2021-02-05

Virus description added:

Technical Information

Malicious functions:
Launches itself as a daemon
Substitutes application name for:
  • /app/lib
Launches processes:
  • sh -c rm -rf app/lib && mkdir app; >app/lib && mv <SAMPLE_FULL_PATH> app/lib; chmod 777 app/lib
  • rm -rf app/lib
  • mkdir app
  • mv <SAMPLE_FULL_PATH> app/lib
  • chmod 777 app/lib
Performs operations with the file system:
Modifies file access rights:
  • /root/app/lib
Creates folders:
  • /root/app
Creates or modifies files:
  • /root/app/lib
  • <SAMPLE_FULL_PATH>
Deletes files:
  • /root/app/lib
Network activity:
Awaits incoming connections on ports:
  • 127.0.0.1:21065
Establishes connection:
  • 8.#.8.8:53
Attacks using a special dictionary (brute-force technique) via the Telnet protocol.
DNS ASK:
  • gr###e.thar.uy
Other:
Collects information about network activity

Curing recommendations


Linux

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