Trojan.Win64.DLOADR.AUSUPT
Windows

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
6,820,352 bytes
EXE
Yes
06 Feb 2020
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 creates the following folders:
- %System Root%\Microsoft
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other System Modifications
This Trojan deletes the following files:
- %Windows%\Tasks\Microsoft Update.job
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Dropping Routine
This Trojan drops the following files:
- %System Root%\Microsoft\msupdate.exe
- %User Temp%\uuid.txt
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other Details
This Trojan connects to the following possibly malicious URL:
- {BLOCKED}.125.177
This report is generated via an automated analysis system.
SOLUTION
9.850
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 these components
- %System Root%\Microsoft\msupdate.exe
- %User Temp%\uuid.txt
Step 3
Search and delete this folder
- %System Root%\Microsoft
Step 4
Scan your computer with your Trend Micro product to delete files detected as Trojan.Win64.DLOADR.AUSUPT. 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:
Step 5
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %Windows%\Tasks\Microsoft Update.job
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