HackTool.Win64.WinExe.AF


 ALIASES:

RiskTool.Win64.WinExec.gen (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

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

  TECHNICAL DETAILS

File Size:

27,648 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

12 Apr 2023

Payload:

Drops files

Arrival Details

This Hacking Tool 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 Hacking Tool drops the following files:

  • %System Root%\winexesvc.log → contains log activities of the hack tool

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Other Details

This Hacking Tool does the following:

  • It checks for the service:
    • Service name: winexesvc
  • It creates the following pipe and connects to the following pipe names which allow command execution:
    • \.\pipe\ahexec_stdin
    • \.\pipe\ahexec_stdout
    • \.\pipe\ahexec_stderr
    • \.\pipe\ahexec
  • It does the following set of commands:
    • run(execute set of commands)
      • Log-on User
      • Open and Duplicate Process Token
      • Open Thread Token
      • Revert to Self (Terminate impersonation)
    • Get:(Fetch commands)
      • system(System information)
      • implevel(Impersonate Name Pipe Client)
      • profile(User Profile)
      • runas(Runas Credentials)
    • Set:(Set information to itself)
      • Version(Retrieve Hacking tool's Version)
      • codepage(Update codes to itself)
  • After connection is established, this hack tool will be able to create processes remotely

  SOLUTION

Minimum Scan Engine:

9.800

SSAPI PATTERN File:

2.615.00

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

Search and delete this file

[ 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.  winexesvc.log

Step 3

Scan your computer with your Trend Micro product to delete files detected as HackTool.Win64.WinExe.AF. 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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