➡️ By @RSCyberTech

• Website: RSCyberTech.com

• LinkedIn: linkedin.com/in/ricardoams

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Platform: TryHackMe

Learning Path: Cyber Security 101

Room: Search Skills

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1️⃣ Task 1 - Introduction

• no answer needed

2️⃣ Task 2 - Evaluation of Search Results

What do you call a cryptographic method or product considered bogus or fraudulent?

Answer ✅

• Snake oil

Justification / Source

• “In cryptography, snake oil is any cryptographic method or product considered to be bogus or fraudulent.”

• https://en.wikipedia.org/wiki/Snake_oil_(cryptography)#:~:text=In cryptography%2C snake oil is,in 19th century United States.

Steps

• Google search for “cryptographic method or product considered to be bogus or fraudulent”

What is the name of the command replacing netstat in Linux systems?

Answer ✅

• ss

Justification / Source

• “Formally, ss is the socket statistics command that replaces netstat .”

• https://www.redhat.com/en/blog/ss-command#:~:text=Formally%2C ss is the socket,commands and their ss replacements.

Steps

• Google search for “name of the command replacing netstat in Linux systems”

3️⃣ Task 3 - Search Engines

How would you limit your Google search to PDF files containing the terms cyber warfare report?

Answer ✅

• filetype:pdf cyber warfare report

Justification / Source

• Information present in the section’s text

Steps

• n/a

What phrase does the Linux command ss stand for?

Answer ✅

• socket statistics

Justification / Source

• “The ss (socket statistics) command is a powerful tool in Linux used for examining sockets.”

• https://www.sans.org/blog/linux-incident-response-using-ss-for-network-analysis/

Steps

• Google search for “ss command meaning”

4️⃣ Task 4 - Specialized Search Engines

What is the top country with lighttpd servers?

Answer ✅

• United States

Justification / Source

• https://www.shodan.io/search?query=httpd

Steps

• Searching for httpd on shodan.io

• Looking at the top countries section on the left side menu

What does BitDefenderFalx detect the file with the hash 2de70ca737c1f4602517c555ddd54165432cf231ffc0e21fb2e23b9dd14e7fb4 as?

Answer ✅

• Android.Riskware.Agent.LHH

Justification / Source

• “BitDefenderFalx Android.Riskware.Agent.LHH*”*

• https://www.virustotal.com/gui/file/2de70ca737c1f4602517c555ddd54165432cf231ffc0e21fb2e23b9dd14e7fb4

Steps

• Searching the provided hash in VirusTotal.com

• Looking at the BitDefender result

5️⃣ Task 5 - Vulnerabilities and Exploits

What utility does CVE-2024-3094 refer to?

Answer ✅

• xz

Justification / Source

• “Malicious code was discovered in the upstream tarballs of xz*”*

• https://nvd.nist.gov/vuln/detail/CVE-2024-3094?ref=thestack.technology

Steps

• Google search for “CVE-2024-3094”

6️⃣ Task 6 - Technical Documentation

What does the Linux command cat stand for?

Answer ✅

• concatenate

Justification / Source

• “cat - concatenate files and print on the standard output”

• https://linux.die.net/man/1/cat

Steps

• Google search for “man cat”

What is the netstat parameter in MS Windows that displays the executable associated with each active connection and listening port?

Answer ✅

• -b

Justification / Source

• “**-b - Displays the executable involved in creating each connection or listening port. In some cases well-known executables host multiple independent components, and in these cases the sequence of components involved in creating the connection or listening port is displayed. In this case the executable name is in [] at the bottom, on top is the component it called, and so forth until TCP/IP was reached. Note that this option can be time-consuming and will fail unless you have sufficient permissions.”

• https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/netstat

Steps

• Google search for “netstat windows”

7️⃣ Task 7 - Social Media

You are hired to evaluate the security of a particular company. What is a popular social media website you would use to learn about the technical background of one of their employees?

Answer ✅

• LinkedIn

Justification / Source

• n/a

Steps

• n/a

Continuing with the previous scenario, you are trying to find the answer to the secret question, “Which school did you go to as a child?”. What social media website would you consider checking to find the answer to such secret questions?

Answer ✅

• Facebook

Justification / Source

• n/a

Steps

• n/a

8️⃣ Task 8 - Conclusion

• No answer needed

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➡️ By @RSCyberTech

• Website: RSCyberTech.com

• LinkedIn: linkedin.com/in/ricardoams