WORM_PUCCMINE.A
Trojan:Win32/Dynamer!ac (Microsoft); Trojan-FEHV!689708DDA65A (McAfee); Trojan.Dropper (Symantec); Trojan.BAT.Miner.bv (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Generic8_c.BSPN (AVG)
Windows
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
804,352 bytes
EXE
No
19 Feb 2015
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%\CWS01_04\CWS01_04.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%\qb0134F5.95
- %User Profile%\CWS01_04
- %Application Data%\qb014224.97
- %System Root%\CWS01_04
(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%\qb0134F5.95\libcurl.dll
- %Application Data%\qb0134F5.95\minerd.exe
- %Application Data%\qb0134F5.95\pthreadGC2.dll
- %Application Data%\qb0134F5.95\zlib1.dll
- %Application Data%\qb014224.97\libcurl.dll
- %Application Data%\qb014224.97\minerd.exe
- %Application Data%\qb014224.97\pthreadGC2.dll
- %Application Data%\qb014224.97\zlib1.dll
- %System Root%\CWS01_04\CWS01_04.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
9.700
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
- %Application Data%\qb0134F5.95\libcurl.dll
- %Application Data%\qb0134F5.95\minerd.exe
- %Application Data%\qb0134F5.95\pthreadGC2.dll
- %Application Data%\qb0134F5.95\zlib1.dll
- %Application Data%\qb014224.97\libcurl.dll
- %Application Data%\qb014224.97\minerd.exe
- %Application Data%\qb014224.97\pthreadGC2.dll
- %Application Data%\qb014224.97\zlib1.dll
- %System Root%\CWS01_04\CWS01_04.exe
Step 3
Search and delete these folders
- %Application Data%\qb0134F5.95
- %User Profile%\CWS01_04
- %Application Data%\qb014224.97
- %System Root%\CWS01_04
Step 4
Scan your computer with your Trend Micro product to delete files detected as WORM_PUCCMINE.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 this Knowledge Base page for more information.
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