FIFA 20 Cracking Analysis

On November 8, 2025, the game FIFA 20, originally released in September 2019 and protected by Denuvo, was successfully cracked. The cracking was performed by a user identified as “voices38,” and the cracked version has been distributed through various repack sources.

Vulnerability Summary

This analysis does not focus on a specific CVE, as the cracking of Denuvo-protected software is not a traditional vulnerability. Instead, it analyzes the circumvention of a software protection mechanism. The “attack vector” is the reverse engineering and exploitation of the Denuvo anti-tamper technology.

  • Affected Software: FIFA 20 (and potentially other games using the same or similar Denuvo versions).
  • Attack Vector: Reverse Engineering, Binary Exploitation, and Code Modification.
  • CVSS Score: N/A (as no specific vulnerability is being exploited in the traditional sense).

Technical Analysis

The primary technical challenge involves bypassing the Denuvo anti-tamper system. This system incorporates several layers of protection, including:

  • Code Obfuscation: The game’s executable is heavily obfuscated to make reverse engineering difficult (T1027 Obfuscation).
  • Integrity Checks: Denuvo periodically checks the game’s code integrity to detect modifications (T1040 Network Sniffing).
  • License Management: Denuvo manages the game’s licensing and activation, requiring online authentication and preventing unauthorized copies.

The successful cracking of FIFA 20 implies that “voices38” was able to:

  • De-obfuscate the Code: Employ techniques to understand the game’s logic and internal workings. This often involves dynamic analysis using debuggers and static analysis to identify key routines (T1059.002 Command and Scripting Interpreter: PowerShell).
  • Bypass Integrity Checks: Remove or disable the integrity checks that would detect the modifications. This may involve patching specific functions responsible for checksum calculations or modifying code that triggers integrity checks.
  • Circumvent License Management: Implement a mechanism to bypass the Denuvo license authentication process. This could include creating a custom emulator or modifying the game’s code to remove the need for online authentication (T1548.001 Abuse Elevation Control Mechanisms).

The specific techniques used by “voices38” are unknown. However, cracking a game with Denuvo typically involves identifying critical functions related to authentication, DRM, and code integrity. The cracker would then patch or bypass these functions to allow the game to run without the protection mechanism.

Proof of Concept

A full proof-of-concept exploit is beyond the scope of this analysis due to ethical considerations and the proprietary nature of the cracked software. However, a high-level overview of the cracking process could be:

  1. Reverse Engineering: The cracker uses disassemblers (e.g., IDA Pro, Ghidra) and debuggers (e.g., x64dbg) to analyze the game’s executable and identify Denuvo-related code.
  2. Function Identification: Key functions such as those related to authentication, license validation, and code integrity checks are identified.
  3. Patching: The cracker patches the identified functions. This could involve changing instructions to skip authentication checks, disable integrity checks, or bypass DRM routines. The patches are applied to the game’s executable file.
  4. Distribution: The cracked executable file, along with any necessary configuration files, is packaged and distributed via torrents, file-sharing sites, or direct download links.

Detection Opportunities

Detecting the distribution and use of cracked software like FIFA 20 presents challenges. However, there are several potential detection opportunities:

  • File Hash Analysis: Comparing the file hashes of the game executables against known cracked versions. Security teams can use hash comparison tools to identify potentially modified files (T1548.003: Abuse Elevation Control Mechanisms).
  • Behavioral Analysis: Monitoring for unusual network activity. Cracked games might attempt to contact unauthorized servers. Network intrusion detection systems can be configured to detect attempts to bypass license validation mechanisms, or to look for specific traffic patterns associated with the cracked game.
  • File System Monitoring: Monitoring file system modifications for the addition of new files or modification of existing game files. Anomaly detection can be used to identify unusual modifications to system files (T1070.004 File Deletion).
  • Process Monitoring: Observing running processes for signs of unusual behavior or processes associated with cracking tools. Examining process command lines for suspicious arguments (T1059.003 Command and Scripting Interpreter: Windows Command Shell).

The primary goal is to identify deviations from normal game behavior. These indicators of compromise may indicate a cracked version of the game.


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