200-201 Host-Based Analysis Practice Question
An analyst uses Volatility's 'netscan' on a memory dump and finds an established connection to an external IP on port 4444. Which type of activity is this commonly associated with?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Reverse shell or backdoor
Port 4444 is commonly used by Metasploit and other remote access tools for reverse shells. An established connection to an external IP on this port is indicative of a backdoor or command-and-control communication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Email communication
Why it's wrong here
Email uses SMTP on ports 25, 465 or 587, and an established outbound session to an external host on 4444 is not mail traffic. Port 4444 is the default Metasploit Meterpreter listener, so this pattern indicates command-and-control or a reverse shell. Email would be the answer if the netscan output showed those mail ports.
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DNS query
Why it's wrong here
DNS uses port 53.
- ✓
Reverse shell or backdoor
Why this is correct
An established outbound connection to an external host on port 4444, a common Metasploit and netcat listener port, indicates a reverse shell or backdoor. The compromised host initiated the session, letting the attacker bypass inbound firewall rules.
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Normal web browsing
Why it's wrong here
Normal web browsing uses TCP 80 or 443 to content servers, not an established session on 4444. That port is Metasploit's default Meterpreter handler, so the connection indicates command-and-control or a reverse shell. Web browsing would be the answer if netscan showed established 443 sessions to known content-delivery addresses.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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