aspr_ide.dll Full Source Code

[TeRcO]

You will find the source code for aspr_ide.dll, a dynamic link library used in software licensing and protection, specifically for applications protected by AsProtect.

This DLL simulates various functions related to license validation, registration, trial period management, and hardware ID checks.

With ❤️

aspr_ide.dpr

[TeRcO]

a small one built in assembly

aspr_ide.rar

[boot]

5 hours ago, TeRcO said:

a small one built in assembly

aspr_ide.rar 915 B · 7 downloads

Great! Based on the sample you provided, I successfully built x86/x64 binary files. 

aspr_ide_msvc.zip

[lovejoy226]

2 hours ago, boot said:

Great! Based on the sample you provided, I successfully built x86/x64 binary files. 

aspr_ide_msvc.zip 79.96 kB · 3 downloads

@boot and @TeRcO What and how do we use this dll for?

Regards.

sean.

[boot]

41 minutes ago, New Year - New Mind said:

use this dll for...

https://forum.tuts4you.com/topic/45127-asprotect-ske-256-sdk-sample-x32/#findComment-223076

 

https://forum.tuts4you.com/topic/45127-asprotect-ske-256-sdk-sample-x32/#findComment-223157

 

[TeRcO]

40 minutes ago, New Year - New Mind said:

@boot and @TeRcO What and how do we use this dll for?

Quote

 "Sometimes, after unpacking an AsProtect-protected target,
 the application may still rely on functions and procedures
 provided by AsProtect in its aspr_ide.dll. While the SDK
 allows custom functions to be added, the default functions
 include: CheckKeyAndDecrypt, SetUserKey, GetHardwareID,
 GetTrialExecs, GetExpirationDate, GetRegistrationKeys, CheckKey,
 GetModeInformation, GetRegistrationInformation, GetTrialDays,
 GetKeyDate, and GetKeyExpirationDate. The aspr_ide.dll and its
 source code provided below simulate all of these functions and
 return the correct values needed to register the application.
 Using the provided Delphi source code, you can modify it to suit
 the requirements of your target."

 

Example of how to use it:

ASProtect SKE 2.56 SDK Sample (x32)

[TeRcO]

By the way .... we can reduce the size by removing the SysUtils  and resource (no need for that) :

SysUtils;
{$R *.res}

 

[Progman]

I just had a few interesting questions in response to your release of the source code for `aspr_ide.dll`:

1. **Reverse Engineering and Obfuscation**:
   - How does `aspr_ide.dll` handle obfuscation techniques to prevent reverse engineering? Are there specific algorithms or methods used to obscure the code, such as control flow flattening, junk code insertion, or cryptographic hashing?
   - Can you elaborate on the anti-debugging and anti-tampering mechanisms implemented in the DLL? Are there specific techniques like INT 2D, SEH (Structured Exception Handling) manipulation, or timing checks?

2. **License Validation**:
   - What cryptographic algorithms are used for license key generation and validation in `aspr_ide.dll`? Are these algorithms resistant to known attacks, such as brute force or side-channel attacks?
   - How does the DLL handle offline license validation? Is there a mechanism to securely store and verify license data without requiring an active internet connection?

3. **Trial Period Management**:
   - How does `aspr_ide.dll` ensure the integrity of trial period data stored on the user's system? Are there mechanisms to prevent users from resetting or extending the trial period by manipulating system time or registry entries?
   - Does the DLL use any form of hardware-based binding to enforce trial period limitations? If so, how does it handle changes in the user's hardware configuration?

4. **Hardware ID Checks**:
   - What specific hardware components are used to generate the Hardware ID (HWID) in `aspr_ide.dll`? Are these components resistant to spoofing or virtualization?
   - How does the DLL handle cases where the hardware configuration changes significantly (e.g., motherboard replacement)? Is there a grace period or a re-validation process?

5. **Dynamic Linking and API Hooking**:
   - How does `aspr_ide.dll` interact with the protected application at runtime? Are there any API hooking techniques used to intercept and validate function calls?
   - What measures are in place to prevent DLL injection or API hooking by malicious actors attempting to bypass the licensing system?

6. **Performance and Overhead**:
   - What is the performance overhead introduced by `aspr_ide.dll` in terms of CPU and memory usage? Are there any optimizations in place to minimize this overhead, especially in resource-constrained environments?
   - How does the DLL handle multi-threaded applications? Are there any potential race conditions or deadlocks that could arise during license validation or trial period checks?

7. **Compatibility and Portability**:
   - What are the compatibility considerations for `aspr_ide.dll` across different versions of Windows? Are there any known issues with specific Windows APIs or system configurations?
   - How does the DLL handle cross-platform scenarios, such as running the protected application in a virtual machine or on a different operating system via compatibility layers like Wine?

8. **Security Vulnerabilities**:
   - Have there been any known security vulnerabilities or exploits discovered in `aspr_ide.dll`? If so, how were they addressed, and what lessons were learned to improve the security of the DLL?
   - What is the process for updating `aspr_ide.dll` to address newly discovered vulnerabilities or to add new features? Is there a mechanism for secure updates?

9. **Legal and Ethical Considerations**:
   - What are the legal implications of releasing the source code for `aspr_ide.dll`, especially in jurisdictions with strict software licensing laws? Are there any potential risks of misuse by malicious actors?
   - How does the release of the source code align with ethical considerations regarding software protection and user privacy? Are there any safeguards in place to prevent abuse of the code?

10. **Future Development**:
    - What are the future development plans for `aspr_ide.dll`? Are there any planned enhancements to the licensing and protection mechanisms, such as integration with cloud-based services or support for new cryptographic standards?
    - How does the development team plan to engage with the community to gather feedback and improve the DLL? Are there any plans for open-source contributions or collaborative development?

These questions delve into the technical intricacies, security considerations, and future directions of `aspr_ide.dll`, providing a comprehensive understanding of its role in software licensing and protection.

[NOP]

This DLL contains no keys or Asprotect code so does not need to deal with any cryptography or obfuscation and no original source has been released

exports are..

Quote

  CheckKeyAndDecrypt   
  CheckKey             
  GetModeInformation   
  GetRegistrationInformation  
  GetKeyDate           
  GetKeyExpirationDate 
  GetHardwareID        
  GetTrialExecs        
  GetExpirationDate    
  GetTrialDays         
  SetUserKey          
  GetRegistrationKeys  

The original DLL would contain code in all of these functions to validate

All this DLL does is use the same function names with no code other than to return a valid boolean

These are the default modes set in this DLL

Quote

    IsRegistered := True;        {the license is always registered for simplicity }
    IsKeyPresent := True;        {the key is always present }
    IsWrongHarwareID := False;   {there is no wrong hardware ID }
    IsKeyExpired := False;       {the key is not expired }
    IsModeExpired := False;      {the mode is not expired }
    IsBlackListedKey := False;   {the key is not blacklisted }
    IsModeActivated := True;     {the mode is activated }

So if you replace the original DLL with this one then when a protected app calls any of these functions it would receive back a valid response without actually doing any checks at all

If that doesn't make sense to you then just look at the code and you will see there really isn't much to it

Edited March 12 by NOP

[TeRcO]

On 3/2/2025 at 9:36 AM, TeRcO said:

 "Sometimes, after unpacking an AsProtect-protected target,
 the application may still rely on functions and procedures
 provided by AsProtect in its aspr_ide.dll. While the SDK
 allows custom functions to be added, the default functions
 include: CheckKeyAndDecrypt, SetUserKey, GetHardwareID,
 GetTrialExecs, GetExpirationDate, GetRegistrationKeys, CheckKey,
 GetModeInformation, GetRegistrationInformation, GetTrialDays,
 GetKeyDate, and GetKeyExpirationDate. The aspr_ide.dll and its
 source code provided below simulate all of these functions and
 return the correct values needed to register the application.
 Using the provided Delphi source code, you can modify it to suit
 the requirements of your target."

 

 

Quote

1. Reverse Engineering and Obfuscation

    Obfuscation techniques like control flow flattening, junk code insertion, string encryption, and code virtualization make reverse engineering harder.
    Anti-debugging measures such as INT 2D, SEH manipulation, and timing checks are used to detect and hinder debuggers and tampering.

2. License Validation

    Cryptographic algorithms like RSA (for encryption) and AES/HMAC (for integrity) are typically used for license validation.
    Offline license validation may rely on secure local storage and cryptographic methods to prevent tampering without internet access.

3. Trial Period Management

    The integrity of trial data is protected by system-level storage, encryption, and clock-based checks to prevent tampering (e.g., changing system time).
    Hardware binding, such as using hardware IDs, prevents trial period extension by manipulating system data.

4. Hardware ID Checks

    Hardware IDs may involve components like the CPU, motherboard, or storage device serial numbers, and the system often checks for significant hardware changes.
    Re-validation may be required in case of hardware changes, with possible grace periods.

5. Dynamic Linking and API Hooking

    API hooking is used to intercept function calls for license validation, and protection against DLL injection may involve checksum verification and techniques like ASLR.

6. Performance and Overhead

    The DLL is designed to minimize performance overhead by only performing checks when necessary and using efficient algorithms.
    Multi-threading is handled with care to avoid race conditions or deadlocks.

7. Compatibility and Portability

    The DLL needs to account for different Windows versions and possibly work in environments like Wine for cross-platform compatibility.

8. Security Vulnerabilities

    Known security vulnerabilities are addressed through patches and updates, which are securely distributed (e.g., via HTTPS, code signing).

9. Legal and Ethical Considerations

    Releasing the source code of such a DLL could have legal implications, particularly in jurisdictions with strict software licensing laws, and ethical concerns regarding user privacy.

10. Future Development

    Future enhancements could include integration with cloud services, newer cryptographic standards, and engaging with the community for feedback and open-source contributions.