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

The hexadecimal representation in the exhibit does not match the Base64 encoding format, which uses ASCII characters (A-Z, a-z, 0-9, +, /) and often includes padding with=. This string is clearly hex and is more aligned withCharcode, where hexadecimal values represent individual characters based on ASCII values.

The Cisco CyberOps Associate guide refers to such encodings during forensic analysis and emphasizes identifying patterns in memory dumps, payloads, or logs. "Security professionals often decode hexadecimal strings to reveal ASCII representations, particularly when inspecting encoded payloads or character obfuscation techniques used in malware".

Fileless malwareoperates in memory and often leverages legitimate tools such asPowerShellto avoid traditional file-based detection. Since these threats don't leave typical file traces, analysts must rely onPowerShell event logsto trace suspicious or unauthorized script execution.

The Cisco CyberOps Associate guide explicitly states:

“PowerShell logs provide insight into script block execution and can reveal indicators of fileless attacks that reside in memory.”

Hence,PowerShell event logsare the most effective forensic source for detecting fileless malware activity on Windows systems.

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.