TROJ_RSHOT.USAV0109

March 26, 2013

ALIASES:

Trojan:Win32/Sisproc (Microsoft); Trojan.Startpage (Symantec); Backdoor.Win32.RShot.aqx (Kaspersky); Backdoor.Win32.Hupigon (v) (Sunbelt); Trojan horse VB.AEBO (AVG)

PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

Threat Type: Trojan
Destructiveness: No
Encrypted:
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.

TECHNICAL DETAILS

File Size:

2,137,048 bytes

File Type:

EXE

Memory Resident:

Initial Samples Received Date:

26 Mar 2013

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.

Other System Modifications

This Trojan adds the following registry keys:

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
DefaultIcon

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
InProcServer32

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
Instance

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
Instance\InitPropertyBag

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
shellex

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
shellex\ContextMenuHandlers

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
shellex\ContextMenuHandlers\{7AF60DD2-4979-11D1-3333-00C04FC33547}

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
shellex\MayChangeDefaultMenu

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\
ShellFolder

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
DefaultIcon

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
InProcServer32

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
Instance

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
Instance\InitPropertyBag

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
shellex

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
shellex\ContextMenuHandlers

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
shellex\ContextMenuHandlers\{7AF60DD2-4979-11D1-4444-00C04FC33567}

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
shellex\MayChangeDefaultMenu

HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\
ShellFolder

HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\
shellex

HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\
shellex\ContextMenuHandlers

HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\
shellex\ContextMenuHandlers\IE2

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
LocalizedString = "@shdoclc.dll,-880"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
InfoTip = "@shdoclc.dll,-880"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\InProcServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance
CLSID = "{3f454f0e-42ae-4d7c-8ea3-328250d6e272}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\
InitPropertyBag
CLSID = "{13709620-C279-11CE-A49E-444553540000}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\
InitPropertyBag
command = "@Shdoclc.dll,-10241"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\
InitPropertyBag
method = "ShellExecute"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\
InitPropertyBag
Param1 = "http://www.{BLOCKED}1.com/?8"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\
InitPropertyBag
Param2 = "%System Root%\Program Files\Internet Explorer\iexplore.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\ShellFolder
Param2 = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
LocalizedString = "@shdoclc.dll,-880"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
InfoTip = "@shdoclc.dll,-880"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\InProcServer32
ThreadingModel = "Apartment"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance
CLSID = "{3f454f0e-42ae-4d7c-8ea3-328250d6e272}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\
InitPropertyBag
CLSID = "{13709620-C279-11CE-A49E-444553540000}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\
InitPropertyBag
command = "@Shdoclc.dll,-10241"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\
InitPropertyBag
method = "ShellExecute"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\
InitPropertyBag
Param1 = "http://www.{BLOCKED}1.com/?8"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\
InitPropertyBag
Param2 = "%System Root%\Program Files\Internet Explorer\iexplore.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\ShellFolder
Param2 = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
Attributes = "0"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\ShellFolder
Attributes = "0"

(Note: The default value data of the said registry entry is 24.)

It deletes the following registry keys:

HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\
shell

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine:

9.300

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

[ 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_CLASSES_ROOT\CLSID
- {7AF60DD2-4979-11D1-3333-00C04FC33547}

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- DefaultIcon

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- InProcServer32

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- Instance

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance
- InitPropertyBag

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- shellex

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\shellex
- ContextMenuHandlers

In HKEY_CLASSES_ROOT\CLSID\shellex\ContextMenuHandlers
- {7AF60DD2-4979-11D1-3333-00C04FC33547}

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\shellex
- MayChangeDefaultMenu

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- ShellFolder

In HKEY_CLASSES_ROOT\CLSID
- {7AF60DD2-4979-11D1-4444-00C04FC33567}

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- DefaultIcon

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- InProcServer32

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- Instance

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance
- InitPropertyBag

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- shellex

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\shellex
- ContextMenuHandlers

In HKEY_CLASSES_ROOT\CLSID\shellex\ContextMenuHandlers
- {7AF60DD2-4979-11D1-4444-00C04FC33567}

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\shellex
- MayChangeDefaultMenu

In HKEY_CLASSES_ROOT\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- ShellFolder

In HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}
- shellex

In HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shellex
- ContextMenuHandlers

In HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\shellex\ContextMenuHandlers
- IE2

To delete the registry key this malware/grayware created:

Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID
Still in the left panel, locate and delete the key:
{7AF60DD2-4979-11D1-3333-00C04FC33547}
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}
Still in the left panel, locate and delete the key:
DefaultIcon
Again Still in the left panel, locate and delete the key:
InProcServer32
Again Still in the left panel, locate and delete the key:
Instance
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}>Instance
Still in the left panel, locate and delete the key:
InitPropertyBag
Again Still in the left panel, locate and delete the key:
shellex
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}>shellex
Still in the left panel, locate and delete the key:
ContextMenuHandlers
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>shellex>ContextMenuHandlers
Still in the left panel, locate and delete the key:
{7AF60DD2-4979-11D1-3333-00C04FC33547}
Again Still in the left panel, locate and delete the key:
MayChangeDefaultMenu
Again Still in the left panel, locate and delete the key:
ShellFolder
Again Still in the left panel, locate and delete the key:
{7AF60DD2-4979-11D1-4444-00C04FC33567}
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}
Still in the left panel, locate and delete the key:
DefaultIcon
Again Still in the left panel, locate and delete the key:
InProcServer32
Again Still in the left panel, locate and delete the key:
Instance
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}>Instance
Still in the left panel, locate and delete the key:
InitPropertyBag
Again Still in the left panel, locate and delete the key:
shellex
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}>shellex
Still in the left panel, locate and delete the key:
ContextMenuHandlers
Again Still in the left panel, locate and delete the key:
{7AF60DD2-4979-11D1-4444-00C04FC33567}
Again Still in the left panel, locate and delete the key:
MayChangeDefaultMenu
Again Still in the left panel, locate and delete the key:
ShellFolder
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{871C5380-42A0-1069-A2EA-08002B30309D}
Still in the left panel, locate and delete the key:
shellex
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{871C5380-42A0-1069-A2EA-08002B30309D}>shellex
Still in the left panel, locate and delete the key:
ContextMenuHandlers
In the left panel, double-click the following:
HKEY_CLASSES_ROOT>CLSID>{871C5380-42A0-1069-A2EA-08002B30309D}>shellex>ContextMenuHandlers
Still in the left panel, locate and delete the key:
IE2
Close Registry Editor.

Step 3

Delete this registry value

[ Learn More ]

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- LocalizedString = "@shdoclc.dll,-880"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- InfoTip = "@shdoclc.dll,-880"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\InProcServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance
- CLSID = "{3f454f0e-42ae-4d7c-8ea3-328250d6e272}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\InitPropertyBag
- CLSID = "{13709620-C279-11CE-A49E-444553540000}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\InitPropertyBag
- command = "@Shdoclc.dll,-10241"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\InitPropertyBag
- method = "ShellExecute"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\InitPropertyBag
- Param1 = "http://www.{BLOCKED}1.com/?8"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\Instance\InitPropertyBag
- Param2 = "%System Root%\Program Files\Internet Explorer\iexplore.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}\ShellFolder
- Param2 = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- LocalizedString = "@shdoclc.dll,-880"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}
- InfoTip = "@shdoclc.dll,-880"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\InProcServer32
- ThreadingModel = "Apartment"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance
- CLSID = "{3f454f0e-42ae-4d7c-8ea3-328250d6e272}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\InitPropertyBag
- CLSID = "{13709620-C279-11CE-A49E-444553540000}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\InitPropertyBag
- command = "@Shdoclc.dll,-10241"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\InitPropertyBag
- method = "ShellExecute"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\InitPropertyBag
- Param1 = "http://www.{BLOCKED}1.com/?8"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\Instance\InitPropertyBag
- Param2 = "%System Root%\Program Files\Internet Explorer\iexplore.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-4444-00C04FC33567}\ShellFolder
- Param2 = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{7AF60DD2-4979-11D1-3333-00C04FC33547}
- Attributes = "0"

To delete the registry value this malware/grayware created:

Open Registry Editor. Click Start>Run, type REGEDIT, then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}
In the right panel, locate and delete the entry:
LocalizedString = "@shdoclc.dll,-880"
Again In the right panel, locate and delete the entry:
InfoTip = "@shdoclc.dll,-880"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}>InProcServer32
In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}>Instance
In the right panel, locate and delete the entry:
CLSID = "{3f454f0e-42ae-4d7c-8ea3-328250d6e272}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}>Instance>InitPropertyBag
In the right panel, locate and delete the entry:
CLSID = "{13709620-C279-11CE-A49E-444553540000}"
Again In the right panel, locate and delete the entry:
command = "@Shdoclc.dll,-10241"
Again In the right panel, locate and delete the entry:
method = "ShellExecute"
Again In the right panel, locate and delete the entry:
Param1 = "http://www.{BLOCKED}1.com/?8"
Again In the right panel, locate and delete the entry:
Param2 = "%System Root%\Program Files\Internet Explorer\iexplore.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-3333-00C04FC33547}>ShellFolder
In the right panel, locate and delete the entry:
Param2 = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}
In the right panel, locate and delete the entry:
LocalizedString = "@shdoclc.dll,-880"
Again In the right panel, locate and delete the entry:
InfoTip = "@shdoclc.dll,-880"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}>InProcServer32
In the right panel, locate and delete the entry:
ThreadingModel = "Apartment"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}>Instance
In the right panel, locate and delete the entry:
CLSID = "{3f454f0e-42ae-4d7c-8ea3-328250d6e272}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}>Instance>InitPropertyBag
In the right panel, locate and delete the entry:
CLSID = "{13709620-C279-11CE-A49E-444553540000}"
Again In the right panel, locate and delete the entry:
command = "@Shdoclc.dll,-10241"
Again In the right panel, locate and delete the entry:
method = "ShellExecute"
Again In the right panel, locate and delete the entry:
Param1 = "http://www.{BLOCKED}1.com/?8"
Again In the right panel, locate and delete the entry:
Param2 = "%System Root%\Program Files\Internet Explorer\iexplore.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{7AF60DD2-4979-11D1-4444-00C04FC33567}>ShellFolder
In the right panel, locate and delete the entry:
Param2 = "0"
Again In the right panel, locate and delete the entry:
Attributes = "0"
Close Registry Editor.

Step 4

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_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}\ShellFolder
- From: Attributes = "0"
  To: Attributes = ""24""

Step 5

Scan your computer with your Trend Micro product to delete files detected as TROJ_RSHOT.USAV0109. 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 6

Restore these deleted registry keys/values from backup

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

In HKEY_CLASSES_ROOT\CLSID\{871C5380-42A0-1069-A2EA-08002B30309D}
- shell

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TROJ_RSHOT.USAV0109

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