TROJ_CLIKUG.D
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.
TECHNICAL DETAILS
6,394,824 bytes
EXE
No
10 Dec 2014
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be manually installed by a user.
Installation
This Trojan adds the following folders:
- %Application Data%\Oxy
- %Start Menu%\Programs\Oxy
- %User Temp%\{malware name}Download
(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.. %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu 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 Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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.)
It drops the following files:
- %Application Data%\Oxy\config.xml
- %Desktop%\PileFile.lnk
- %User Temp%\htmlayout.dll
- %Start Menu%\Programs\Oxy\Uninstall.lnk
(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.. %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in 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 Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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.. %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu 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.)
It drops the following copies of itself into the affected system:
- %Application Data%\Oxy\oxyinst.exe
- %User Temp%\{malware name}Download\{malware name}.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.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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.)
Other System Modifications
This Trojan adds the following registry entries:
HKEY_CURRENT_USER\Software\Ascensio System
HKEY_CURRENT_USER\Software\Escolade
GUID = "{value}"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
Comments = "Uninstalling PileFile downloader"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
DisplayIcon = ""%Application Data%\Oxy\oxyinst.exe",1"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
DisplayName = "PileFile downloader"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
HelpLink = "www.products-placement.com"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
NoModify = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
NoRepair = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
Publisher = "FINEDREAM INVEST LTD"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
UninstallString = ""%Application Data%\Oxy\oxyinst.exe" --elevated --uninstallPileFile"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
Comments = "Uninstalling \PileFile setup - 1.0\"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
DisplayIcon = ""%Application Data%\Oxy\oxyinst.exe",1"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
DisplayName = "Oxy"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
HelpLink = "www.products-placement.com"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
NoModify = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
NoRepair = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
Publisher = "FINEDREAM INVEST LTD"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
{9AAF2503-6CD5-414A-B5BA-37639B76C91F}
UninstallString = ""%Application Data%\Oxy\oxyinst.exe" --uninstall"
Download Routine
This Trojan connects to the following URL(s) to download its component file(s):
- {BLOCKED}wnloader.com
- www.{BLOCKED}wnload.com
- www.{BLOCKED}-m.com
It saves the files it downloads using the following names:
- %User Temp%\tmp{random}.exe
- %User Temp%\tmp{random}\Bundle.exe
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp 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.)
SOLUTION
9.700
11.338.01
10 Dec 2014
11.339.00
11 Dec 2014
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 this folder
Step 3
Search and delete this file
Step 4
Delete this registry value
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
- Ascensio System
- Ascensio System
- In HKEY_CURRENT_USER\Software
- Escolade
- Escolade
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall
- {2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
- {2A4641B4-EDDB-46D1-B34B-F93E19A8B3DB}
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall
- {9AAF2503-6CD5-414A-B5BA-37639B76C91F}
- {9AAF2503-6CD5-414A-B5BA-37639B76C91F}
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_CLIKUG.D. 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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