➔
search
✕

WORM_PUCCMINE.B

May 08, 2017
 PLATFORM:

Windows

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Worm 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:

851,968 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

08 May 2017

Arrival Details

This Worm 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 Worm drops the following copies of itself into the affected system:

  • %User Profile%\CWS_H25_VC12\CWS_H25_VC12.exe

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

It creates the following folders:

  • %Application Data%\qb007DEA.43
  • %User Profile%\CWS_H25_VC12
  • %Application Data%\qb009692.BC
  • %System Root%\CWS_H25_VC12

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Dropping Routine

This Worm drops the following files:

  • %Application Data%\qb007DEA.43\libcurl.dll
  • %Application Data%\qb007DEA.43\minerd.exe
  • %Application Data%\qb007DEA.43\pthreadGC2.dll
  • %Application Data%\qb007DEA.43\zlib1.dll
  • %Application Data%\qb009692.BC\libcurl.dll
  • %Application Data%\qb009692.BC\minerd.exe
  • %Application Data%\qb009692.BC\pthreadGC2.dll
  • %Application Data%\qb009692.BC\zlib1.dll
  • %System Root%\CWS_H25_VC12\CWS_H25_VC12.exe

(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Other Details

This Worm connects to the following possibly malicious URL:

  • {BLOCKED}.111.19

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.8

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Search and delete these components

[ Learn More ]
There may be some components 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.
  • %Application Data%\qb007DEA.43\libcurl.dll
  • %Application Data%\qb007DEA.43\minerd.exe
  • %Application Data%\qb007DEA.43\pthreadGC2.dll
  • %Application Data%\qb007DEA.43\zlib1.dll
  • %Application Data%\qb009692.BC\libcurl.dll
  • %Application Data%\qb009692.BC\minerd.exe
  • %Application Data%\qb009692.BC\pthreadGC2.dll
  • %Application Data%\qb009692.BC\zlib1.dll
  • %System Root%\CWS_H25_VC12\CWS_H25_VC12.exe

Step 3

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.
  • %Application Data%\qb007DEA.43
  • %User Profile%\CWS_H25_VC12
  • %Application Data%\qb009692.BC
  • %System Root%\CWS_H25_VC12

Step 4

Scan your computer with your Trend Micro product to delete files detected as WORM_PUCCMINE.B. 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 this Knowledge Base page for more information.


Did this description help? Tell us how we did.