Analysis by: Eleazar Valles
ALIASES:

HackTool:Win32/Keygen (MICROSOFT)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any information-stealing capability.

It uses a user interface (UI).

  TECHNICAL DETAILS

File Size: 308,224 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 24 May 2023
Payload: Displays fake login console

Arrival Details

This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Potentially Unwanted Application drops the following files:

  • {Current Malware File Path}\adesk_patcher64.exe → when executed on a 32-bit machine

Propagation

This Potentially Unwanted Application does not have any propagation routine.

Backdoor Routine

This Potentially Unwanted Application does not have any backdoor routine.

Information Theft

This Potentially Unwanted Application does not have any information-stealing capability.

Other Details

This Potentially Unwanted Application uses the following user interface:

It does the following:

  • Requires the user to copy the Request Code from the Autodesk Installation Wizard
  • It is used to generate an Activation Code for the following software:
    • Autodesk 2016 Products

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.629.00
SSAPI PATTERN Date: 08 Jun 2023

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Search and delete these files

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • {Current Malware File Path}\adesk_patcher64.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.KeyGen.CSAF. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:


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