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>> New PT0-003 Practice Questions <<
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NEW QUESTION # 271
A consultant starts a network penetration test. The consultant uses a laptop that is hardwired to the network to try to assess the network with the appropriate tools. Which of the following should the consultant engage first?
Answer: C
Explanation:
Host Discovery is typically the initial step in a network penetration test. It involves identifying the active devices on the network. This provides a map of what devices are present and potentially what services and operating systems they are running, which then informs subsequent steps such as service discovery, OS fingerprinting, and DNS enumeration.
NEW QUESTION # 272
A security firm has been hired to perform an external penetration test against a company. The only information the firm received was the company name. Which of the following passive reconnaissance approaches would be MOST likely to yield positive initial results?
Answer: B
NEW QUESTION # 273
A penetration tester gains access to a domain server and wants to enumerate the systems within the domain. Which of the following tools would provide the best oversight of domains?
Answer: C
Explanation:
Installation:
Nmap can be installed on various operating systems. For example, on a Debian-based system:
sudo apt-get install nmap
Basic Network Scanning:
To scan a range of IP addresses in the network:
nmap -sP 192.168.1.0/24
Service and Version Detection:
To scan for open ports and detect the service versions running on a specific host:
nmap -sV 192.168.1.10
Enumerating Domain Systems:
Use Nmap with additional scripts to enumerate domain systems. For example, using the --script option:
nmap -p 445 --script=smb-enum-domains 192.168.1.10
Advanced Scanning Options:
Stealth Scan: Use the -sS option to perform a stealth scan:
nmap -sS 192.168.1.10
Aggressive Scan: Use the -A option to enable OS detection, version detection, script scanning, and traceroute:
nmap -A 192.168.1.10
Real-World Example:
A penetration tester uses Nmap to enumerate the systems within a domain by scanning the network for live hosts and identifying the services running on each host. This information helps in identifying potential vulnerabilities and entry points for further exploitation.
Reference from Pentesting Literature:
In "Penetration Testing - A Hands-on Introduction to Hacking," Nmap is extensively discussed for various stages of the penetration testing process, from reconnaissance to vulnerability assessment.
HTB write-ups often illustrate the use of Nmap for network enumeration and discovering potential attack vectors.
Reference:
Penetration Testing - A Hands-on Introduction to Hacking
HTB Official Writeups
NEW QUESTION # 274
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
111/tcp open rpcbind
443/tcp open https
27017/tcp open mongodb
50123/tcp open ms-rpc
Which of the following commands did the tester use to get this output?
Answer: D
Explanation:
To detect all open ports and enumerate services, the tester needs to:
* Use -sV (Service Version Detection)
* Use -Pn (Disables ICMP ping to bypass firewalls)
* Use -p- (Scans all 65,535 TCP ports)
* nmap -sV -Pn -p- 10.10.10.10 (Option D):
* This command performs full-port scanning, including high-numbered ports like 50123/tcp (ms- rpc).
* Without -p-, high ports would be missed.
NEW QUESTION # 275
A penetration tester has obtained a low-privilege shell on a Windows server with a default configuration and now wants to explore the ability to exploit misconfigured service permissions. Which of the following commands would help the tester START this process?
Answer: B
Explanation:
https://www.bleepingcomputer.com/news/security/certutilexe-could-allow-attackers-to-download-malware-whi
--- https://docs.microsoft.com/en-us/sysinternals/downloads/accesschk
The
certutil command is a Windows utility that can be used to manipulate certificates and certificate authorities.
However, it can also be abused by attackers to download files from remote servers using the -urlcache option. In this case, the command downloads accesschk64.exe from http://192.168.2.124/windows-binaries/ and saves it locally. Accesschk64.exe is a tool that can be used to check service permissions and identify potential privilege escalation vectors. The other commands are not relevant for this purpose. Powershell is a scripting language that can be used to perform various tasks, but in this case it uploads a file instead of downloading one. Schtasks is a command that can be used to create or query scheduled tasks, but it does not help with service permissions. Wget is a Linux command that can be used to download files from the web, but it does not work on Windows by default.
NEW QUESTION # 276
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