Trojan.Win64.MALXMR.AA

December 12, 2024
 Analysis by: Raymart Christian Yambot
 ALIASES:

HEUR:Trojan.Win64.Miner.gen (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Trojan 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:

8,680,448 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

02 Dec 2024

Payload:

Drops files

Arrival Details

This Trojan 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 Trojan drops the following files:

  • %System%\Speech\_{Random 9 Characters}_{Random 9 Characters}.{Random 9 Characters}

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other Details

This Trojan does the following:

  • It deletes itself after execution.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

19.760.07

FIRST VSAPI PATTERN DATE:

06 Dec 2024

VSAPI OPR PATTERN File:

19.761.00

VSAPI OPR PATTERN Date:

07 Dec 2024

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.
  • %System%\Speech\_{Random 9 Characters}_{Random 9 Characters}.{Random 9 Characters}

Step 3

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win64.MALXMR.AA. 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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