ADW_PUMPI
Windows
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
5,434,312 bytes
EXE
No
24 Oct 2014
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 Profile%\Application Data\iPumper
- %User Temp%\tmp6
- %User Temp%\tmp1B
- %User Temp%\tmp2C
(Note: %User Profile% is a user's profile folder, where it usually is C:\Documents and Settings\{user name} on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name} 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 adware deletes the following files:
- %User Temp%\amitest.txt
- %User Temp%\420F92AC6479F0D8C58C6FE21126644A.ini
- %User Temp%\setup.exe
- %User Temp%\ami14.tmp
- %User Temp%\797DDD454E4AE72DBCA1C3713A6F0640.ini
- %User Temp%\ami25.tmp
- %User Temp%\5AA3253E71D63F02C62C5A4289C728C1.ini
- %User Temp%\ami36.tmp
(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.)
It adds the following registry keys:
HKEY_CURRENT_USER\Software\Escolade
HKEY_CLASSES_ROOT\brasilin.cosets.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
brasilin.cosets.1\CLSID
HKEY_CLASSES_ROOT\brasilin.cosets
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
brasilin.cosets\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\LocalServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\Version
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}\TypeLib
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Escolade
GUID = "2df07d9a405311e4a6cf0050569f1d4d"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\LocalServer32
ServerExecutable = "%User Temp%\setup.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}\TypeLib
Version = "1.0"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
ESENT
EventMessageFile = "%System%\ESENT.dll"
(Note: The default value data of the said registry entry is {random values}.)
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
ESENT
CategoryMessageFile = "%System%\ESENT.dll"
(Note: The default value data of the said registry entry is {random values}.)
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
ESENT
CategoryCount = "1"
(Note: The default value data of the said registry entry is 10.)
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
ESENT
TypesSupported = "7"
(Note: The default value data of the said registry entry is 7.)
Dropping Routine
This adware drops the following files:
- %User Temp%\{malware file name}_001660.log
- %User Temp%\htmlayout.dll
- %User Profile%\iPumper\config.xml
- %User Temp%\tmp9.exe
- %User Temp%\tmp1E.exe
- %User Temp%\tmp2F.exe
- %User Temp%\awhC.tmp
- %User Temp%\awhF.tmp
- %User Temp%\ami14.tmp.ico
- %User Temp%\awh21.tmp
- %User Temp%\ami25.tmp.ico
- %User Temp%\awh32.tmp
- %User Temp%\ami36.tmp.ico
(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.. %User Profile% is a user's profile folder, where it usually is C:\Documents and Settings\{user name} on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name} 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:
- {BLOCKED}1.11.90
- {BLOCKED}0.1
- {BLOCKED}.210.63
- {BLOCKED}.193.33
- {BLOCKED}.192.149
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\Software
- Escolade
- In HKEY_CLASSES_ROOT
- brasilin.cosets.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\brasilin.cosets.1
- CLSID
- In HKEY_CLASSES_ROOT
- brasilin.cosets
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\brasilin.cosets
- CurVer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {667b9cbe-8863-4193-b906-c5433a8714fa}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
- VersionIndependentProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
- Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
- LocalServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
- TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}
- Version
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {D7371144-28A2-4EE0-9F39-6778669A91D9}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}
- 1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{D7371144-28A2-4EE0-9F39-6778669A91D9}\1.0
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}
- TypeLib
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_CURRENT_USER\Software\Escolade
- GUID = "2df07d9a405311e4a6cf0050569f1d4d"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{667b9cbe-8863-4193-b906-c5433a8714fa}\LocalServer32
- ServerExecutable = "%User Temp%\setup.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{87D6AEC4-13BF-4604-8B04-2DCE3F5DFC41}\TypeLib
- Version = "1.0"
Step 4
Restore these modified registry values
Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\ESENT
- From: EventMessageFile = "%System%\ESENT.dll"
To: EventMessageFile = ""{random values}""
- From: EventMessageFile = "%System%\ESENT.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\ESENT
- From: CategoryMessageFile = "%System%\ESENT.dll"
To: CategoryMessageFile = ""{random values}""
- From: CategoryMessageFile = "%System%\ESENT.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\ESENT
- From: CategoryCount = "1"
To: CategoryCount = ""10""
- From: CategoryCount = "1"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\ESENT
- From: TypesSupported = "7"
To: TypesSupported = ""7""
- From: TypesSupported = "7"
Step 5
Search and delete these components
- %User Temp%\{malware file name}_001660.log
- %User Temp%\htmlayout.dll
- %User Profile%\iPumper\config.xml
- %User Temp%\tmp9.exe
- %User Temp%\tmp1E.exe
- %User Temp%\tmp2F.exe
- %User Temp%\awhC.tmp
- %User Temp%\awhF.tmp
- %User Temp%\ami14.tmp.ico
- %User Temp%\awh21.tmp
- %User Temp%\ami25.tmp.ico
- %User Temp%\awh32.tmp
- %User Temp%\ami36.tmp.ico
Step 6
Search and delete these folders
- %User Profile%\Application Data\iPumper
- %User Temp%\tmp6
- %User Temp%\tmp1B
- %User Temp%\tmp2C
Step 7
Scan your computer with your Trend Micro product to delete files detected as ADW_PUMPI. 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.
Step 8
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Temp%\amitest.txt
- %User Temp%\420F92AC6479F0D8C58C6FE21126644A.ini
- %User Temp%\setup.exe
- %User Temp%\ami14.tmp
- %User Temp%\797DDD454E4AE72DBCA1C3713A6F0640.ini
- %User Temp%\ami25.tmp
- %User Temp%\5AA3253E71D63F02C62C5A4289C728C1.ini
- %User Temp%\ami36.tmp
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