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PUA.Win32.Softcnapp.MPDXQ

March 28, 2023
 Analysis by: Carlos Villegas Madrid
 ALIASES:

PUA.Softcnapp (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:

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.

  TECHNICAL DETAILS

File Size:

2,207,064 bytes

File Type:

EXE

Memory Resident:

No

Payload:

Modifies system registry

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.

Installation

This Potentially Unwanted Application creates the following folders:

  • %AppDataLocal%Low\WanNengSoftManager
  • %AppDataLocal%Low\WanNengSoftManager.user
  • %AppDataLocal%Low\WanNengSoftManager\SoftConfig
  • %AppDataLocal%Low\YCWEB

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other Details

This Potentially Unwanted Application adds the following registry keys:

HKEY_CURRENT_USER\Software\WanNengSoftManager

HKEY_CURRENT_USER\Software\WanNengSoftManager\
WNGJAppInfo

  SOLUTION

Minimum Scan Engine:

9.800

SSAPI PATTERN File:

2.609.00

SSAPI PATTERN Date:

30 Mar 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

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

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\WanNengSoftManager\WNGJAppInfo
  • In HKEY_CURRENT_USER\Software\WanNengSoftManager

Step 4

Search and delete these folders

[ 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.
  • %AppDataLocal%Low\WanNengSoftManager.user
  • %AppDataLocal%Low\YCWEB
  • %AppDataLocal%Low\WanNengSoftManager\SoftConfig
  • %AppDataLocal%Low\WanNengSoftManager

Step 5

Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.Softcnapp.MPDXQ. 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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