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Trojan.MSIL.DLOADR.AUTAD

August 02, 2022
 Analysis by: Jeffrey Francis Bonaobra
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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:

263,960 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

01 Aug 2022

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 adds the following folders:

  • {Malware File Path}\log
  • {Malware File Path}\log\Update

It drops the following files:

  • {Malware File Path}\log\Update\{Malware File Name}(General).log

It adds the following processes:

  • {Malware File Path}\{Malware File Name} → if executed without administrator rights

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

17.724.02

FIRST VSAPI PATTERN DATE:

02 Aug 2022

VSAPI OPR PATTERN File:

17.725.00

VSAPI OPR PATTERN Date:

03 Aug 2022

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.  
  • {Malware File Path}\log\Update\{Malware File Name}(General).log

Step 4

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • {Malware File Path}\log
  • {Malware File Path}\log\Update

Step 5

Scan your computer with your Trend Micro product to delete files detected as Trojan.MSIL.DLOADR.AUTAD. 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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