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Lessons Learned

TryHackMe10 answered prompts

Lessons Learned TryHackMe walkthrough with 10 answered prompts.

Prompts and answers

  • What phase of the IR process focuses on people, documentations, and technological capabilities?
    Preparation
  • What phase of the IR process is reliant on the effectivity and synergy of all the other phases?
    Eradication, Remediation, and Recovery
  • What malicious file type has been found with two different versions?
    Dropper
  • What's the name of the malicious file found in the Jenkins server?
    backup.sh
  • What are the two technical details removed in the revised paragraph? (Separate them with a comma and a space; format: technical detail 1, technical detail 2)
    alex.swift@swiftspend[.]finance, Ticket#2023012398704232
  • What technical detail in the fifth paragraph of the draft can be removed? (The answer is the entire string that you will be removing to make the paragraph more concise.)
    (i.e., SPF, DKIM, DMARC)
  • In the draft, the third paragraph talks about the discovery of numerous artefacts via the review of a packet capture. What are those artefacts? (Separate them with a comma and a space; format: technical detail 1, technical detail 2)
    3[.]250[.]38[.]141, Dropper.exe
  • The fourth paragraph talked about a swiftspend domain being hijacked to host the threat actor’s exfiltration IP. How did the investigators find out about this? (The answer is the entire string as described in the SoD)
    Pivoting from backup.sh
  • What did we use to transform IOCs as detection rules in a vendor-agnostic format?
    Sigma
  • In the Sigma Rule that we've created, what is the logsource category used by the author?
    create_stream_hash