Exam CS0-003 topic 1 question 30 discussion

The analyst should first look at E. p4wnp1_aloa.lan (192.168.86.56). This device is particularly suspicious because it is running services commonly associated with unauthorized or malicious activity, including: SSH (port 22): Often used for remote administration, it can be used for unauthorized remote access. rpcbind (port 111): Typically associated with Remote Procedure Call (RPC) services, which could be a vector for attacks. netbios-ssn (port 139) and microsoft-ds (port 445): Both ports are related to SMB, which is often exploited in network attacks. http-alt (port 8000): This could be a web service running on a non-standard port, potentially for malicious purposes. The MAC address indicates the device is from the Raspberry Pi Foundation, suggesting it might be a Raspberry Pi, which is sometimes used as a platform for penetration testing or unauthorized network activities (e.g., using the P4wnP1 tool, which is a popular pentesting tool for Raspberry Pi). This combination of factors makes it the most suspicious device in the list.

It would be this user for two reasons. One, they are using a raspberry.pi, and two, because p4wnp1_aloa is a framework focused on red teaming on raspberry devices, making them a suspect immediately.

I think you would not base your decision on just a nmap scan. You should obviously know your network: Why is there a ROKU or a Raspberry system in your network? I would wonder why a Roku device is there, but hey, maybe they have a gaming room? For a corporate environment I would though wonder why there is a Raspberry present. These types of computers get used more and more in appliances and could have a reason to be there, but with all those ports open??? That would be negligence of the supplier.

Thats an awful lot to read, digest and evaluate in a timed exam! Im worried now :)

P4wnP1_aloa looks suspicious because of the open ports

Yep, these ports are all suss

A. wh4dc-748gy.lan (192.168.86.152) The analyst should look at the device with the hostname "wh4dc-748gy.lan" (192.168.86.152) first. This is because the Nmap scan report shows that this device has several open ports, including common services such as HTTP, HTTPS, and Microsoft-DS (SMB), which are often targeted by attackers. Additionally, the report indicates that there are several filtered ports on this device, which could indicate potential security measures or firewall rules in place. Investigating this device further may help identify any unauthorized or suspicious activity occurring on the network.

I vote E because it's running rpcbind and http-alt in addition to the OS raspberry pi. Admin should take a look at A second.

i choosed E because the nmap scan show Http Alt ( port 8000 ) open while the regular http port is closed

Agree. Besides the funky name, it's suspicious that a single machine is running both Linux endpoint mapper (TCP 111) and MS RPC (TCP 135). That is just NOT natural. The others are all arguably Microsoft machines. Don't mind the SSH (TCP 22) on one of them--could be an SSH server installed on the machine--unusual, but not impossible.

Agree with answer E. Take a look at the MAC address -- (Raspberry PI).

Correct The analyst should look at p4wnp1_aloa.lan (192.168.86.56) first, as this is the most suspicious device on the network. https://github.com/RoganDawes/P4wnP1_aloa