300-215 Exam Dumps : Conducting Forensic Analysis and Incident Response Using Cisco CyberOps Technologies (CBRFIR)

The alert box in the screenshot ("HACKED BY 1337") is a classic sign ofCross-Site Scripting (XSS). This occurs when unvalidated input is executed as code in a browser.

To prevent this:

TheCisco CyberOps Associateguide recommendsstrict input validationas the primary defense against XSS and similar web-based injection attacks.

The exhibit shows a PowerShell script that modifies registry keys under:

HKCU:\Software\Classes\Folder\shell\open\command

This technique is commonly associated with aUAC (User Account Control) bypass. Specifically:

It creates a new custom shell command path for opening folders.

The key registry property"DelegateExecute"is set, which is a known bypass method. If set without a value, it may cause Windows to run commands with elevated privileges without showing the UAC prompt.

The use ofHKCU(HKEY_CURRENT_USER) rather thanHKLM(HKEY_LOCAL_MACHINE) allows the attacker to bypass permissions since HKCU is writable by the current user. This registry hijack can be leveraged by a malicious actor to execute arbitrary commands with elevated rights.

This is identified in the Cisco CyberOps study material under “UAC bypass techniques,” which describes:

“Attackers often create or modify registry keys like DelegateExecute to hijack the default behavior of applications and elevate privileges”.

Thus, option B is correct: the exhibit demonstrates a UAC bypass using user-accessible registry modification.

Cisco Firepower Management Center (FMC), when configured with Snort rules, classifies attacks with signature categories such as FILE-OFFICE for Microsoft Office-based exploits. One of the critical threats involving Microsoft Office is a known vector involving Microsoft Graphics, which attackers exploit forremote code execution (RCE). RCE vulnerabilities enable attackers to execute arbitrary commands or code on the target machine—making this classification high-severity.

The alert "FILE-OFFICE Microsoft Graphics remote code execution attempt" is consistent with what Cisco and Snort define for such threats and appears in rulesets addressing vulnerabilities like CVE-2017-0001.