Description In this challenge, we receive a log indicating a possible web-based attack. The objective is to analyze a provided PCAP file and extract meaningful information related to HTTP activity and authentication. Investigation Process Recovering the PCAP File The PCAP was initially obtained in a Vm from there i obtained the files. The following commands were used to take the files out of the vm as here was not much network traffic so no large size of the file:

Alert Name: SOC168 – Whoami Command Detected in Request Body Severity: High Event ID: 118 Event Time: Feb 28, 2022, 04:12 AM Category: Web Attack Play Book 1. Alert Overview A high-severity web attack alert was triggered on WebServer1004 due to the detection of the whoami command within the HTTP request body. This behavior is commonly associated with command injection attempts, where an attacker tries to execute system-level commands through a web application.

Field Value Event ID 120 Event Time Mar 01, 2022, 10:10 AM Rule SOC170 – Passwd Found in Requested URL – Possible LFI Attack Analyst Level Security Analyst Hostname WebServer1006 Destination IP Address 172.16.17.13 Source IP Address 106.55.45.162 HTTP Request Method GET Requested URL https://172.16.17.13/?file=../../../../etc/passwd User-Agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322) Alert Trigger Reason URL contains passwd Device Action Allowed Play Book 1. Alert Overview A web attack alert was triggered on WebServer1006 due to the detection of a directory traversal payload attempting to access the sensitive system file /etc/passwd via an HTTP GET request.

Alert Name: SOC335 – CVE-2024-49138 Exploitation Detected Severity: High Event ID: 313 Event Time: Jan 22, 2025, 02:37 AM Category: Privilege Escalation Base Information Field Value Event ID 313 Event Time Jan 22, 2025, 02:37 AM Rule SOC335 – CVE-2024-49138 Exploitation Detected Analyst Level Security Analyst Hostname Victor IP Address 172.16.17.207 Process Name svohost.exe Process Path C:\temp\service_installer\svohost.exe Process ID 7640 Parent Process C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Command Line ??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 File Hash (SHA-256) b432dcf4a0f0b601b1d79848467137a5e25cab5a0b7b1224be9d3b6540122db9 Process User EC2AMAZ-ILGVOIN\LetsDefend Trigger Reason Suspicious behavior patterns linked to CVE-2024-49138 Device Action Allowed Incident Details Field Value Incident Name EventID 313 – SOC335 CVE-2024-49138 Exploitation Incident Type Privilege Escalation Created Date Jan 08, 2026, 09:12 AM Pre-Investigation Notes Date: Jan 22, 2025, 02:37 AM Hostname: Victor IP Address: 172.

Alert Name: SOC336 – Windows OLE Zero-Click RCE Exploitation Detected Severity: Critical Event ID: 314 Event Time: Feb 04, 2025, 04:18 PM Category: Malware Base Information Field Value Severity Critical Event ID 314 Event Time Feb 04, 2025, 04:18 PM Rule Name SOC336 – Windows OLE Zero-Click RCE Exploitation Detected CVE CVE-2025-21298 Analyst Level Security Analyst Source IP / SMTP Address 84.38.130.118 Sender Email projectmanagement@pm.me Recipient Email Austin@letsdefend.io Email Subject Important: Action Required for Upcoming Project Deadline Attachment Name mail.