2018-04-11 - TRAFFIC ANALYSIS EXERCISE - DYNACCOUNTIC
- Zip archive of the pcap: 2018-04-11-traffic-analysis-exercise.pcap.zip 883 kB (883,222 bytes)
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Someone at Dynaccountic has infected their Windows computer. Your manager has tasked you to write an incident report.
Your manager thinks of you as a "security accountant."
Here's a brief outline of associated network traffic:
- LAN segment: 10.10.10.0/24 (10.10.10.0 through 10.10.10.255)
- Broadcast address: 10.10.10.255
- Domain controller: 10.10.10.3 (DYNACCOUNTIC-DC)
- Domain: dynaccountic.com
The incident report should include:
- Date/Time of the infection
- Who was infected (IP address, host name, MAC address, and user account name)
- What malware is involved
- The likely source of this infection
- Indicators associated with this infection (IP addresses, domains, URLs, and file hashes, if any)
Remember, a good incident report starts with an executive summary. In this case, the executive summary should only be 2 to 3 sentences long. See my proposed format below for this month's exercise.
- Sentence 1: On [date] at [time in UTC], a Windows computer used by [user account name] was infected with [name of malware].
- Sentence 2: This infection probably originated from [describe where the malware likely came from].
- Sentence 3: [Describe how the issue was resolved. Here's an example.] The infected computer was sent to our help desk to be wiped and re-imaged. The user changed all of [his or her] associated passwords.
- Infected user's IP address:
- Infected user's MAC addres:
- Infected user's host name:
- Infected user's account name:
- List the IP addresses, ports, and domains associated with the malware.
- If any malware can be extracted from the exercise pcap, list the SHA256 file hashes for any associated files.
- Click here for the answers.
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