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PUA.Win32.Segurazo.E.component

November 01, 2019
 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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:

151,144 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

01 Nov 2019

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.

Other System Modifications

This Potentially Unwanted Application adds the following registry keys:

HKEY_CLASSES_ROOT\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}

HKEY_CLASSES_ROOT\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}\
InprocServer32

HKEY_CLASSES_ROOT\*\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\SystemFileAssociations\*\
shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\.lnk\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\SystemFileAssociations\.lnk\
shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\Directory\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\SystemFileAssociations\Directory\
shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\Folder\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\SystemFileAssociations\Folder\
shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\lnkfile\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

HKEY_CLASSES_ROOT\SystemFileAssociations\lnkfile\
shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}
(Default) = "SegurazoShellExtension.FileContextMenuExt Class"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}\
InprocServer32
(Default) = "%User Temp%\cac17f229de4143274fcf7d247d442b5705033de.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
*\shellex\ContextMenuHandlers\
SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SystemFileAssociations\*\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
.lnk\ShellEx\ContextMenuHandlers\
SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SystemFileAssociations\.lnk\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Directory\shellex\ContextMenuHandlers\
SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SystemFileAssociations\Directory\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Folder\ShellEx\ContextMenuHandlers\
SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SystemFileAssociations\Folder\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lnkfile\shellex\ContextMenuHandlers\
SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SystemFileAssociations\lnkfile\shellex\
ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
(Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

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

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_CLASSES_ROOT\CLSID
    • {BFD98515-CD74-48A4-98E2-13D209E3EE4F}
  • In HKEY_CLASSES_ROOT\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}
    • InprocServer32
  • In HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\SystemFileAssociations\*\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\.lnk\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\SystemFileAssociations\.lnk\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\Directory\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\SystemFileAssociations\Directory\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\Folder\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\SystemFileAssociations\Folder\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\lnkfile\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt
  • In HKEY_CLASSES_ROOT\SystemFileAssociations\lnkfile\shellex\ContextMenuHandlers
    • SegurazoShellExtension.FileContextMenuExt

Step 3

Delete this registry value

[ 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_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}
    • (Default) = "SegurazoShellExtension.FileContextMenuExt Class"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}\InprocServer32
    • (Default) = "%User Temp%\cac17f229de4143274fcf7d247d442b5705033de.dll"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BFD98515-CD74-48A4-98E2-13D209E3EE4F}\InprocServer32
    • ThreadingModel = "Apartment"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\*\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.lnk\ShellEx\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\.lnk\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Directory\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\Directory\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\ShellEx\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\Folder\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SystemFileAssociations\lnkfile\shellex\ContextMenuHandlers\SegurazoShellExtension.FileContextMenuExt
    • (Default) = "{BFD98515-CD74-48A4-98E2-13D209E3EE4F}"

Step 4

Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.Segurazo.E.component. 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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