HackTool.Win32.KEYPRESS.A

October 14, 2019
 ALIASES:

GenericRXIO-EZ!554ACD7A8B4D (McAfee)

 PLATFORM:

Windows

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Hacking Tool 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:

2,654,208 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

14 Oct 2019

Arrival Details

This Hacking Tool 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 Hacking Tool adds the following registry keys:

HKEY_CLASSES_ROOT\lw.lwsoft3.1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3.1\CLSID

HKEY_CLASSES_ROOT\lw.lwsoft3

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3\CLSID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3\CurVer

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
VersionIndependentProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
Programmable

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
TypeLib

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}\
TypeLib

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3.1
(Default) = "lwcom"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3.1\CLSID
(Default) = "{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3
(Default) = "lwcom"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3\CLSID
(Default) = "{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
lw.lwsoft3\CurVer
(Default) = "lw.lwsoft3.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
(Default) = "lwcom"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
ProgID
(Default) = "lw.lwsoft3.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
VersionIndependentProgID
(Default) = "lw.lwsoft3"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
InprocServer32
(Default) = "%User Temp%\9198b2911e0669785617d45b513fc87824ba468f.dll"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
InprocServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\
TypeLib
(Default) = "{71175991-9B59-42EA-B712-9ADF3319AC18}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}
(Default) = "lwcom"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}\
TypeLib
(Default) = "{71175991-9B59-42EA-B712-9ADF3319AC18}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}\
TypeLib
version = "1.0"

Dropping Routine

This Hacking Tool drops the following files:

  • %User Profile%\adb.exe

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

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
    • lw.lwsoft3.1
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3.1
    • CLSID
  • In HKEY_CLASSES_ROOT
    • lw.lwsoft3
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3
    • CLSID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3
    • CurVer
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID
    • {F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
    • ProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
    • VersionIndependentProgID
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
    • Programmable
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
    • InprocServer32
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
    • TypeLib
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface
    • {319E1714-1900-4d95-8900-E95B65A9FDBD}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}
    • TypeLib

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\lw.lwsoft3.1
    • (Default) = "lwcom"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3.1\CLSID
    • (Default) = "{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3
    • (Default) = "lwcom"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3\CLSID
    • (Default) = "{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lw.lwsoft3\CurVer
    • (Default) = "lw.lwsoft3.1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}
    • (Default) = "lwcom"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\ProgID
    • (Default) = "lw.lwsoft3.1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\VersionIndependentProgID
    • (Default) = "lw.lwsoft3"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\InprocServer32
    • (Default) = "%User Temp%\9198b2911e0669785617d45b513fc87824ba468f.dll"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\InprocServer32
    • ThreadingModel = "Apartment"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6C2EA3D-2A5A-4B63-AFDB-5E24BD1D39A0}\TypeLib
    • (Default) = "{71175991-9B59-42EA-B712-9ADF3319AC18}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}
    • (Default) = "lwcom"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}\TypeLib
    • (Default) = "{71175991-9B59-42EA-B712-9ADF3319AC18}"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{319E1714-1900-4d95-8900-E95B65A9FDBD}\TypeLib
    • version = "1.0"

Step 4

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Profile%\adb.exe

Step 5

Scan your computer with your Trend Micro product to delete files detected as HackTool.Win32.KEYPRESS.A. 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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