Analysis by: Khristian Joseph Morales
ALIASES:

HEUR:WebToolbar.Win32.SoftonicDownloader.gen (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

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: 319,544 bytes
File Type: EXE
File Compression: UPX
Memory Resident: No
Payload: Connects to URLs/IPs, Displays graphics/image

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 accesses the following websites to download files:

  • https://camstudio.{BLOCKED}ic.jp/universaldownloader-prefetch?id_version=
  • http://camstudio.{BLOCKED}nic.jp/universaldownloader-prefetch?id_version=

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: 2.499.00
SSAPI PATTERN Date: 17 Mar 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

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