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PUA.Win32.SoftonicDownloader.IV

August 18, 2023
 ALIASES:

AdWare.Win32.SoftonicDownloader (IKARUS)

 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted:

  • 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.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

366,912 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

31 Jul 2023

Payload:

Connects to URLs/IPs

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.

Download Routine

This Potentially Unwanted Application connects to the following URL(s) to download its component file(s):

  • https://librecad.{BLOCKED}ic.jp/329218/universaldownloader-prefetch
  • http://librecad.{BLOCKED}ic.jp/329218/universaldownloader-prefetch
  • http://{BLOCKED}ic-analytics.net/blank.gif?product=st_activity&event=window:app::loaded&id_session={Session ID}&Params=%7B%22api_version%22:%221.41.3%22%2C%22country%22:%22us%22%2C%22flavour%22:%222%22%2C%22id_file%22:%22329218%22%2C%22machine_id%22:%22{Machine ID}%22%2C%22os%22:%22%5BOS:7601%2C6%2C1%2C2%2C1%2C256%2C1%2C0%2CService%20Pack%201%5D%22%2C%22ts%22:%221692083224%22%2C%22url%22:%22{URL}user_agent%22:%22{User Agent}

Other Details

This Potentially Unwanted Application does the following:

  • It displays the following window upon execution:

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.800

SSAPI PATTERN File:

2.649.00

SSAPI PATTERN Date:

17 Aug 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

Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.SoftonicDownloader.IV. 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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