TROJ_STASER.CK

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.

File Size: 614,784 bytes

File Type: EXE

Memory Resident: Yes

Initial Samples Received Date: 31 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.

Installation

This Trojan creates the following folders:

%User Temp%\OCS
%User Temp%\Downloads
%User Temp%\OCS\Downloads
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7
%User Profile%\Application Data\OCS
%User Profile%\OCS\SM
%User Profile%\SM\IO
%User Profile%\Application Data\Opera
%User Profile%\Opera\Opera

(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 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.)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
Ocs_SM = "%User Profile%\SM\SearchAnonymizer.exe"

Other System Modifications

This Trojan modifies the following file(s):

%Application Data%\GDIPFONTCACHEV1.DAT

(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.)

It adds the following registry keys:

HKEY_CURRENT_USER\Software\OCS

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
SearchAnonymizer

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}

It adds the following registry entries:

HKEY_CURRENT_USER\Software\OCS
CID = "b8c0a292-e432-408d-a7d8-7b2492e18363"

HKEY_CURRENT_USER\Software\OCS
PID = "chipde"

HKEY_CURRENT_USER\Software\OCS
lastPID = "chipde"

HKEY_CURRENT_USER\Software\OCS
lastSID = "1abcfa29-b721-4ceb-96c0-a431f3603254"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer
Comments = "SearchAnonymizer"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer
DisplayIcon = "%User Profile%\SM\SearchAnonymizer.exe,0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer
DisplayName = "SearchAnonymizer"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer
DisplayVersion = "1.0.1 (de)"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer
InstallLocation = "%User Profile%\OCS\SM"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
SearchAnonymizer
UninstallString = "%User Profile%\SM\SearchAnonymizer.exe uninstall"

HKEY_CURRENT_USER\Software\OCS
Sync = "True"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
SearchAnonymizer
EventMessageFile = "%Windows%\Microsoft.NET\Framework\v2.0.50727\EventLogMessages.dll"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
DisplayName = "eBay.de"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
URL = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
Codepage = "fde9"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
FaviconURL = "http://{BLOCKED}y.de/favicon.ico"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
DisplayName = "Amazon"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
URL = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
Codepage = "fde9"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
FaviconURL = "http://Amazon.de/favicon.ico"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
DisplayName = "Preisvergleich"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
URL = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
Codepage = "fde9"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
FaviconURL = "http://{BLOCKED}unner.de/favicon.ico"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
DisplayName = "OTTO"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
URL = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
Codepage = "fde9"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
FaviconURL = "http://Otto.de/favicon.ico"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
DisplayName = "MyVideo"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
URL = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
Codepage = "fde9"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
FaviconURL = "http://Myvideo.de/favicon.ico"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
DisplayName = "Wikipedia"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
URL = "{random characters}"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
Codepage = "fde9"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
FaviconURL = "http://de.Wikipedia.org/favicon.ico"

It modifies the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
GDIPlus
FontCachePath = "%Application Data%"

(Note: The default value data of the said registry entry is %User Profile%\Local Settings\Application Data.)

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application
Sources = "{random characters}"

(Note: The default value data of the said registry entry is {random values}.)

Dropping Routine

This Trojan drops the following files:

%User Temp%\OCS\dqhgezvwrmrocylk.dat
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c\VLCPortable_2.1.3.paf.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe\pricesparrow-1.4.9-ds02-win.msi
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b\SearchAnonymizerStarter.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7\AddonsHelper.exe
%User Profile%\SM\SearchAnonymizer.exe
%User Profile%\SM\SearchAnonymizerHelper.exe
%User Profile%\SM\vl.dat
%User Profile%\SM\SearchAnonymizerHelper.InstallState
%User Profile%\Opera\search.ini

(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 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.)

Other Details

This Trojan connects to the following possibly malicious URL:

{BLOCKED}73.131
{BLOCKED}.27.202
{BLOCKED}3.4.251
{BLOCKED}.27.201
{BLOCKED}0.1
{BLOCKED}2.62.43
{BLOCKED}2.62.34
{BLOCKED}.109.248

This report is generated via an automated analysis system.

Minimum Scan Engine: 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

Restart in Safe Mode

[ Learn More ]

Step 3

Delete this registry key

[ Learn More ]

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
- OCS

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- SearchAnonymizer

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application
- SearchAnonymizer

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
- {D2CCD65B-8676-4FF9-B484-134323BE8A86}

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
- {639A7FDC-9976-4C9B-9F31-7E799F10660D}

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
- {75E6DEC3-22BC-414B-B804-5DF6F95D435E}

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
- {5358E90D-9D63-485C-A1F8-637B3E38DE9B}

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
- {E22F9909-812C-4E59-8EF2-97E3B354C5C4}

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes
- {46FD71D2-9EFC-416C-812E-B42151B0CEC4}

Step 4

Delete this registry value

[ Learn More ]

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\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- Ocs_SM = "%User Profile%\SM\SearchAnonymizer.exe"

In HKEY_CURRENT_USER\Software\OCS
- CID = "b8c0a292-e432-408d-a7d8-7b2492e18363"

In HKEY_CURRENT_USER\Software\OCS
- PID = "chipde"

In HKEY_CURRENT_USER\Software\OCS
- lastPID = "chipde"

In HKEY_CURRENT_USER\Software\OCS
- lastSID = "1abcfa29-b721-4ceb-96c0-a431f3603254"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SearchAnonymizer
- Comments = "SearchAnonymizer"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SearchAnonymizer
- DisplayIcon = "%User Profile%\SM\SearchAnonymizer.exe,0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SearchAnonymizer
- DisplayName = "SearchAnonymizer"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SearchAnonymizer
- DisplayVersion = "1.0.1 (de)"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SearchAnonymizer
- InstallLocation = "%User Profile%\OCS\SM"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SearchAnonymizer
- UninstallString = "%User Profile%\SM\SearchAnonymizer.exe uninstall"

In HKEY_CURRENT_USER\Software\OCS
- Sync = "True"

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\SearchAnonymizer
- EventMessageFile = "%Windows%\Microsoft.NET\Framework\v2.0.50727\EventLogMessages.dll"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
- DisplayName = "eBay.de"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
- URL = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
- Codepage = "fde9"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{D2CCD65B-8676-4FF9-B484-134323BE8A86}
- FaviconURL = "http://{BLOCKED}y.de/favicon.ico"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
- DisplayName = "Amazon"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
- URL = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
- Codepage = "fde9"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{639A7FDC-9976-4C9B-9F31-7E799F10660D}
- FaviconURL = "http://Amazon.de/favicon.ico"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
- DisplayName = "Preisvergleich"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
- URL = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
- Codepage = "fde9"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
- FaviconURL = "http://{BLOCKED}unner.de/favicon.ico"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
- DisplayName = "OTTO"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
- URL = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
- Codepage = "fde9"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
- FaviconURL = "http://Otto.de/favicon.ico"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
- DisplayName = "MyVideo"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
- URL = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
- Codepage = "fde9"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
- FaviconURL = "http://Myvideo.de/favicon.ico"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
- DisplayName = "Wikipedia"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
- URL = "{random characters}"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
- Codepage = "fde9"

In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\SearchScopes\{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
- FaviconURL = "http://de.Wikipedia.org/favicon.ico"

To delete the registry value this malware/grayware created:

Open Registry Editor.
» For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
» For Windows Vista, Windows 7, and Windows Server 2008 users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, and Windows Server 2012 users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
Ocs_SM = "%User Profile%\SM\SearchAnonymizer.exe"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>OCS
In the right panel, locate and delete the entry:
CID = "b8c0a292-e432-408d-a7d8-7b2492e18363"
Again In the right panel, locate and delete the entry:
PID = "chipde"
Again In the right panel, locate and delete the entry:
lastPID = "chipde"
Again In the right panel, locate and delete the entry:
lastSID = "1abcfa29-b721-4ceb-96c0-a431f3603254"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Uninstall>SearchAnonymizer
In the right panel, locate and delete the entry:
Comments = "SearchAnonymizer"
Again In the right panel, locate and delete the entry:
DisplayIcon = "%User Profile%\SM\SearchAnonymizer.exe,0"
Again In the right panel, locate and delete the entry:
DisplayName = "SearchAnonymizer"
Again In the right panel, locate and delete the entry:
DisplayVersion = "1.0.1 (de)"
Again In the right panel, locate and delete the entry:
InstallLocation = "%User Profile%\OCS\SM"
Again In the right panel, locate and delete the entry:
UninstallString = "%User Profile%\SM\SearchAnonymizer.exe uninstall"
Again In the right panel, locate and delete the entry:
Sync = "True"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>Eventlog>Application>SearchAnonymizer
In the right panel, locate and delete the entry:
EventMessageFile = "%Windows%\Microsoft.NET\Framework\v2.0.50727\EventLogMessages.dll"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>SearchScopes>{D2CCD65B-8676-4FF9-B484-134323BE8A86}
In the right panel, locate and delete the entry:
DisplayName = "eBay.de"
Again In the right panel, locate and delete the entry:
URL = "{random characters}"
Again In the right panel, locate and delete the entry:
Codepage = "fde9"
Again In the right panel, locate and delete the entry:
FaviconURL = "http://{BLOCKED}y.de/favicon.ico"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>SearchScopes>{639A7FDC-9976-4C9B-9F31-7E799F10660D}
In the right panel, locate and delete the entry:
DisplayName = "Amazon"
Again In the right panel, locate and delete the entry:
URL = "{random characters}"
Again In the right panel, locate and delete the entry:
Codepage = "fde9"
Again In the right panel, locate and delete the entry:
FaviconURL = "http://Amazon.de/favicon.ico"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>SearchScopes>{75E6DEC3-22BC-414B-B804-5DF6F95D435E}
In the right panel, locate and delete the entry:
DisplayName = "Preisvergleich"
Again In the right panel, locate and delete the entry:
URL = "{random characters}"
Again In the right panel, locate and delete the entry:
Codepage = "fde9"
Again In the right panel, locate and delete the entry:
FaviconURL = "http://{BLOCKED}unner.de/favicon.ico"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>SearchScopes>{5358E90D-9D63-485C-A1F8-637B3E38DE9B}
In the right panel, locate and delete the entry:
DisplayName = "OTTO"
Again In the right panel, locate and delete the entry:
URL = "{random characters}"
Again In the right panel, locate and delete the entry:
Codepage = "fde9"
Again In the right panel, locate and delete the entry:
FaviconURL = "http://Otto.de/favicon.ico"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>SearchScopes>{E22F9909-812C-4E59-8EF2-97E3B354C5C4}
In the right panel, locate and delete the entry:
DisplayName = "MyVideo"
Again In the right panel, locate and delete the entry:
URL = "{random characters}"
Again In the right panel, locate and delete the entry:
Codepage = "fde9"
Again In the right panel, locate and delete the entry:
FaviconURL = "http://Myvideo.de/favicon.ico"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>SearchScopes>{46FD71D2-9EFC-416C-812E-B42151B0CEC4}
In the right panel, locate and delete the entry:
DisplayName = "Wikipedia"
Again In the right panel, locate and delete the entry:
URL = "{random characters}"
Again In the right panel, locate and delete the entry:
Codepage = "fde9"
Again In the right panel, locate and delete the entry:
FaviconURL = "http://de.Wikipedia.org/favicon.ico"
Close Registry Editor.

Step 5

Restore these modified registry values

[ Learn More ]

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_CURRENT_USER\Software\Microsoft\GDIPlus
- From: FontCachePath = "%Application Data%"
  To: FontCachePath = ""%User Profile%\Local Settings\Application Data""

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application
- From: Sources = "{random characters}"
  To: Sources = ""{random values}""

Step 6

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.

%User Temp%\OCS\dqhgezvwrmrocylk.dat
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c\VLCPortable_2.1.3.paf.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe\pricesparrow-1.4.9-ds02-win.msi
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b\SearchAnonymizerStarter.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7\AddonsHelper.exe
%User Profile%\SM\SearchAnonymizer.exe
%User Profile%\SM\SearchAnonymizerHelper.exe
%User Profile%\SM\vl.dat
%User Profile%\SM\SearchAnonymizerHelper.InstallState
%User Profile%\Opera\search.ini

To manually delete a malware/grayware file from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

Right-click Start then click Search....
In the File name* input box, type the following:
%User Temp%\OCS\dqhgezvwrmrocylk.dat
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c\VLCPortable_2.1.3.paf.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe\pricesparrow-1.4.9-ds02-win.msi
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b\SearchAnonymizerStarter.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7\AddonsHelper.exe
%User Profile%\SM\SearchAnonymizer.exe
%User Profile%\SM\SearchAnonymizerHelper.exe
%User Profile%\SM\vl.dat
%User Profile%\SM\SearchAnonymizerHelper.InstallState
%User Profile%\Opera\search.ini
In the Look In drop-down list, select My Computer then press Enter.
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

• For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen,then click File Explorer.
In the Search Computer/This PC input box, type:
%User Temp%\OCS\dqhgezvwrmrocylk.dat
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c\VLCPortable_2.1.3.paf.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe\pricesparrow-1.4.9-ds02-win.msi
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b\SearchAnonymizerStarter.exe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7\AddonsHelper.exe
%User Profile%\SM\SearchAnonymizer.exe
%User Profile%\SM\SearchAnonymizerHelper.exe
%User Profile%\SM\vl.dat
%User Profile%\SM\SearchAnonymizerHelper.InstallState
%User Profile%\Opera\search.ini
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: Read the following Microsoft page if these steps do not work on Windows 7.

Step 7

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.

%User Temp%\OCS
%User Temp%\Downloads
%User Temp%\OCS\Downloads
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7
%User Profile%\Application Data\OCS
%User Profile%\OCS\SM
%User Profile%\SM\IO
%User Profile%\Application Data\Opera
%User Profile%\Opera\Opera

To delete malware/grayware/spyware folders:

For Windows 2000, Windows XP, and Windows Server 2003:

Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
In the File name* input box, type:

%User Temp%\OCS
%User Temp%\Downloads
%User Temp%\OCS\Downloads
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7
%User Profile%\Application Data\OCS
%User Profile%\OCS\SM
%User Profile%\SM\IO
%User Profile%\Application Data\Opera
%User Profile%\Opera\Opera
In the Look In drop-down list, select My Computer, then press Enter.
Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.
Repeat steps 2 to 4 for the remaining folders: %User Temp%\OCS
%User Temp%\Downloads
%User Temp%\OCS\Downloads
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7
%User Profile%\Application Data\OCS
%User Profile%\OCS\SM
%User Profile%\SM\IO
%User Profile%\Application Data\Opera
%User Profile%\Opera\Opera

*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
In the Search Computer/This PC input box, type:
%User Temp%\OCS
%User Temp%\Downloads
%User Temp%\OCS\Downloads
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7
%User Profile%\Application Data\OCS
%User Profile%\OCS\SM
%User Profile%\SM\IO
%User Profile%\Application Data\Opera
%User Profile%\Opera\Opera
Once located, select the file then press SHIFT+DELETE to permanently delete the folder.
Repeat steps 2-3 for the remaining folders: %User Temp%\OCS
%User Temp%\Downloads
%User Temp%\OCS\Downloads
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\6bff0c56a8bbe8d4420f1af8fb583a7c
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\b0ee509130a1f431fb6a3a7b0e25b9fe
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\ce486cf393e28e832c9a2efba635b53b
%User Temp%\OCS\Downloads\fc14996dfa99adfc7baae624196888c5\3356edf7a88e475d88eac25e50bcafe7
%User Profile%\Application Data\OCS
%User Profile%\OCS\SM
%User Profile%\SM\IO
%User Profile%\Application Data\Opera
%User Profile%\Opera\Opera

*Note: Read the following Microsoft page if these steps do not work on Windows 7.

Step 8

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_STASER.CK. 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 9

Restore deleted/modified files and/or registry entries from backup

*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

%Application Data%\GDIPFONTCACHEV1.DAT

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