Resubmissions

11/08/2021, 17:58

210811-kypqsa9z5x1

11/08/2021, 17:54

210811-dp2k6srtf69

General

  • Target
    telnetd
  • Size 83KB
  • Sample210811-dp2k6srtf6
  • SHA256 020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0
  • MD5 SHA1 SHA512
Score
9/10

Malware Config

Targets

    • Target
      telnetd
    • Size 83KB
    • SHA256 020f1fa6072108c79ed6f553f4f8b08e157bf17f9c260a76353300230fed09f0
    • MD5 SHA1 SHA512
    Score
    9/10
    • Modifies the Watchdog daemon

      Malware like Mirai modify the Watchdog to prevent it restarting an infected system.

    • Modifies hosts file

      Adds to hosts file used for mapping hosts to IP addresses.

    • Writes DNS configuration

      Writes data to DNS resolver config file.

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Reads system routing table

      Gets active network interfaces from /proc virtual filesystem.

    • Reads system network configuration

      Uses contents of /proc filesystem to enumerate network settings.

    • Reads runtime system information

      Reads data from /proc virtual filesystem.

    • Writes file to tmp directory

      Malware often drops required files in the /tmp directory.

MITRE ATT&CK Enterprise v6

Tasks