ADW_HELOKELA
MultiPlug-FRO. (McAfee); ERROR (Kaspersky)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Adware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This adware 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
913,264 bytes
EXE
No
05 Feb 2015
Arrival Details
This adware 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 adware creates the following folders:
- %User Temp%\cE7ECCbe
- %User Temp%\cE7ECCbe\images
- %User Temp%\cE7ECCbe\steps
(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.)
Other System Modifications
This adware adds the following registry keys:
HKEY_CURRENT_USER\CLSID
HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}
HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\
Programmable
HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\
LocalServer32
HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\
TypeLib
HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\
Version
HKEY_CURRENT_USER\TypeLib
HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}
HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\
1.0
HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\
1.0\FLAGS
HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\
1.0\0
HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\
1.0\0\win32
HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\
1.0\HELPDIR
HKEY_CURRENT_USER\Interface
HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}
HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\
ProxyStubClsid
HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\
ProxyStubClsid32
HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\
TypeLib
HKEY_CURRENT_USER\Software\WebApp
HKEY_CURRENT_USER\Software\WebApp\
Styles
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Tcpip\Parameters
GlobalMaxTcpWindowSize = "ffffff"
HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\
LocalServer32
ServerExecutable = "{malware path and file name}"
HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\
TypeLib
Version = "1.0"
HKEY_CURRENT_USER\Software\WebApp\
Styles
MaxScriptStatements = "ffffffff"
Dropping Routine
This adware drops the following files:
- images\progressbar.gif
- images\loader.gif
- %Desktop%.lnk
- %User Temp%\cE7ECCbe\steps\1.ini
- %User Temp%\cE7ECCbe\steps\2.ini
(Note: %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.)
Other Details
This adware connects to the following possibly malicious URL:
- http://c1.{BLOCKED}l.info/?{random characters}
- {BLOCKED}0.1
- {BLOCKED}32.99
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
Delete this registry key
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
- CLSID
- In HKEY_CURRENT_USER\CLSID
- {F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}
- In HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}
- Programmable
- In HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}
- LocalServer32
- In HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}
- TypeLib
- In HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}
- Version
- In HKEY_CURRENT_USER
- TypeLib
- In HKEY_CURRENT_USER\TypeLib
- {157B1AA6-3E5C-404A-9118-C1D91F537040}
- In HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}
- 1.0
- In HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0
- FLAGS
- In HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0
- 0
- In HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0
- win32
- In HKEY_CURRENT_USER\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0
- HELPDIR
- In HKEY_CURRENT_USER
- Interface
- In HKEY_CURRENT_USER\Interface
- {3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}
- In HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}
- ProxyStubClsid
- In HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}
- ProxyStubClsid32
- In HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}
- TypeLib
- In HKEY_CURRENT_USER\Software
- WebApp
- In HKEY_CURRENT_USER\Software\WebApp
- Styles
Step 3
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_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters
- GlobalMaxTcpWindowSize = "ffffff"
- In HKEY_CURRENT_USER\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32
- ServerExecutable = "{malware path and file name}"
- In HKEY_CURRENT_USER\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib
- Version = "1.0"
- In HKEY_CURRENT_USER\Software\WebApp\Styles
- MaxScriptStatements = "ffffffff"
Step 4
Search and delete these components
- images\progressbar.gif
- images\loader.gif
- %Desktop%.lnk
- %User Temp%\cE7ECCbe\steps\1.ini
- %User Temp%\cE7ECCbe\steps\2.ini
Step 5
Search and delete these folders
- %User Temp%\cE7ECCbe
- %User Temp%\cE7ECCbe\images
- %User Temp%\cE7ECCbe\steps
Step 6
Scan your computer with your Trend Micro product to delete files detected as ADW_HELOKELA. 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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