TROJ_FAKEAV.KPS

November 26, 2013

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.

It deletes itself after execution.

TECHNICAL DETAILS

File Size:

112,640 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

26 Nov 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.

Installation

This Trojan creates the following folders:

%User Profile%\Windows\Software
%User Profile%\Application Data\VMware
%User Profile%\VMware\VMware Tools

(Note: %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_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
iguqyx = "%User Profile%\Software\iguqyx.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
igosyg = "%User Profile%\Software\igosyg.exe"

Other System Modifications

This Trojan adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.3\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ECMAScript\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript Author\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript Author\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript Author\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1 Author\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2 Author\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript.Encode\OLEScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\OLEScript

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Script Host\Settings
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows Script\Settings
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows Script Host\Settings
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows Scripting Host\Settings
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
2301 = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
2301 = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
2301 = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
2301 = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
2301 = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Cache
Persistent = "0"

HKEY_CLASSES_ROOT
JScript = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
LiveScript = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript1.1 = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript1.2 = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript1.3 = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.3
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
ECMAScript = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ECMAScript
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{f414c260-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
ProgID = "JScript"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
InprocServer32 = "%System%\jscript.dll"

HKEY_CLASSES_ROOT
JScript Author = "JScript Language Authoring"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
LiveScript Author = "JScript Language Authoring"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript Author = "JScript Language Authoring"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript1.1 Author = "JScript Language Authoring"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1 Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_CLASSES_ROOT
JavaScript1.2 Author = "JScript Language Authoring"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2 Author
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{f414c261-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Authoring"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
ProgID = "JScript Author"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
InprocServer32 = "%System%\jscript.dll"

HKEY_CLASSES_ROOT
JScript.Encode = "JScript Language Encoding"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript.Encode
CLSID = "{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID
{f414c262-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Encoding"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
ProgID = "JScript.Encode"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
InprocServer32 = "%System%\jscript.dll"

It modifies the following registry entries:

HKEY_CURRENT_USER\Control Panel\Sound
Beep = "no"

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
2101 = "0"

(Note: The default value data of the said registry entry is 3.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
1609 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
1607 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
1601 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
1406 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
1400 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
2101 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
1609 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
1607 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
1601 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
1406 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
1400 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
2101 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
1609 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
1607 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
1601 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
1406 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
1400 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
2101 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1609 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1607 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1601 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1406 = "0"

(Note: The default value data of the said registry entry is 3.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1400 = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
2101 = "0"

(Note: The default value data of the said registry entry is 3.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
1609 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
1607 = "0"

(Note: The default value data of the said registry entry is 3.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
1601 = "0"

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
1406 = "0"

(Note: The default value data of the said registry entry is 3.)

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
1400 = "0"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
ThreadingModel = "Both"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
ThreadingModel = "Both"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
ThreadingModel = "Both"

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

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Internet Settings\
Security_HKLM_only

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript\CLSID

HKEY_CLASSES_ROOT\JScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript\CLSID

HKEY_CLASSES_ROOT\LiveScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript\CLSID

HKEY_CLASSES_ROOT\JavaScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1\CLSID

HKEY_CLASSES_ROOT\JavaScript1.1

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2\CLSID

HKEY_CLASSES_ROOT\JavaScript1.2

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.3\CLSID

HKEY_CLASSES_ROOT\JavaScript1.3

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ECMAScript\CLSID

HKEY_CLASSES_ROOT\ECMAScript

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\Implemented Categories

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript Author\CLSID

HKEY_CLASSES_ROOT\JScript Author

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
LiveScript Author\CLSID

HKEY_CLASSES_ROOT\LiveScript Author

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript Author\CLSID

HKEY_CLASSES_ROOT\JavaScript Author

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.1 Author\CLSID

HKEY_CLASSES_ROOT\JavaScript1.1 Author

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JavaScript1.2 Author\CLSID

HKEY_CLASSES_ROOT\JavaScript1.2 Author

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\Implemented Categories

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
JScript.Encode\CLSID

HKEY_CLASSES_ROOT\JScript.Encode

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\ProgID

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\Implemented Categories

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}

Dropping Routine

This Trojan drops the following files:

%User Profile%\Software\iguqyx.exe
%User Profile%\Software\igosyg.exe

Other Details

This Trojan connects to the following possibly malicious URL:

http://{BLOCKED}7.168.88/xm/adm/mod.php

It deletes itself after execution.

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

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_LOCAL_MACHINE\SOFTWARE\Classes\JScript
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.3
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ECMAScript
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript Author
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript Author
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript Author
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1 Author
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2 Author
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript.Encode
- OLEScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- OLEScript

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_LOCAL_MACHINE>SOFTWARE>Classes>JScript
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>LiveScript
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.1
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.2
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.3
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>ECMAScript
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JScript Author
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>LiveScript Author
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript Author
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.1 Author
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.2 Author
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JScript.Encode
Still in the left panel, locate and delete the key:
OLEScript
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
Still in the left panel, locate and delete the key:
OLEScript
Close Registry Editor.

Step 4

Delete this registry value

[ Learn More ]

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- iguqyx = "%User Profile%\Software\iguqyx.exe"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- igosyg = "%User Profile%\Software\igosyg.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Script Host\Settings
- Enable = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Windows Script\Settings
- Enable = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Windows Script Host\Settings
- Enable = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Windows Scripting Host\Settings
- Enable = "1"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- 2301 = "3"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- 2301 = "3"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- 2301 = "3"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- 2301 = "3"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- 2301 = "3"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Cache
- Persistent = "0"

In HKEY_CLASSES_ROOT
- JScript = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- LiveScript = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript1.1 = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript1.2 = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript1.3 = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.3
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- ECMAScript = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ECMAScript
- CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c260-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID = "JScript"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32 = "%System%\jscript.dll"

In HKEY_CLASSES_ROOT
- JScript Author = "JScript Language Authoring"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- LiveScript Author = "JScript Language Authoring"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript Author = "JScript Language Authoring"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript1.1 Author = "JScript Language Authoring"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1 Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_CLASSES_ROOT
- JavaScript1.2 Author = "JScript Language Authoring"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2 Author
- CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c261-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Authoring"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID = "JScript Author"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32 = "%System%\jscript.dll"

In HKEY_CLASSES_ROOT
- JScript.Encode = "JScript Language Encoding"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript.Encode
- CLSID = "{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c262-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Encoding"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID = "JScript.Encode"

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32 = "%System%\jscript.dll"

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_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
iguqyx = "%User Profile%\Software\iguqyx.exe"
Again In the right panel, locate and delete the entry:
igosyg = "%User Profile%\Software\igosyg.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows Script Host>Settings
In the right panel, locate and delete the entry:
Enable = "1"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows Script>Settings
In the right panel, locate and delete the entry:
Enable = "1"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows Script Host>Settings
In the right panel, locate and delete the entry:
Enable = "1"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows Scripting Host>Settings
In the right panel, locate and delete the entry:
Enable = "1"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>0
In the right panel, locate and delete the entry:
2301 = "3"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>1
In the right panel, locate and delete the entry:
2301 = "3"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>2
In the right panel, locate and delete the entry:
2301 = "3"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>3
In the right panel, locate and delete the entry:
2301 = "3"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>4
In the right panel, locate and delete the entry:
2301 = "3"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Cache
In the right panel, locate and delete the entry:
Persistent = "0"
In the left panel, double-click the following:
HKEY_CLASSES_ROOT
In the right panel, locate and delete the entry:
JScript = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JScript
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
LiveScript = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>LiveScript
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript1.1 = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.1
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript1.2 = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.2
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript1.3 = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.3
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
ECMAScript = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>ECMAScript
In the right panel, locate and delete the entry:
CLSID = "{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID
In the right panel, locate and delete the entry:
{f414c260-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
In the right panel, locate and delete the entry:
ProgID = "JScript"
Again In the right panel, locate and delete the entry:
InprocServer32 = "%System%\jscript.dll"
Again In the right panel, locate and delete the entry:
JScript Author = "JScript Language Authoring"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JScript Author
In the right panel, locate and delete the entry:
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
LiveScript Author = "JScript Language Authoring"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>LiveScript Author
In the right panel, locate and delete the entry:
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript Author = "JScript Language Authoring"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript Author
In the right panel, locate and delete the entry:
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript1.1 Author = "JScript Language Authoring"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.1 Author
In the right panel, locate and delete the entry:
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
JavaScript1.2 Author = "JScript Language Authoring"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JavaScript1.2 Author
In the right panel, locate and delete the entry:
CLSID = "{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
{f414c261-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Authoring"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
In the right panel, locate and delete the entry:
ProgID = "JScript Author"
Again In the right panel, locate and delete the entry:
InprocServer32 = "%System%\jscript.dll"
Again In the right panel, locate and delete the entry:
JScript.Encode = "JScript Language Encoding"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>JScript.Encode
In the right panel, locate and delete the entry:
CLSID = "{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}"
Again In the right panel, locate and delete the entry:
{f414c262-6ac0-11cf-b6d1-00aa00bbbb58} = "JScript Language Encoding"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
In the right panel, locate and delete the entry:
ProgID = "JScript.Encode"
Again In the right panel, locate and delete the entry:
InprocServer32 = "%System%\jscript.dll"
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\Control Panel\Sound
- From: Beep = "no"
  To: Beep = ""yes""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- From: 2101 = "0"
  To: 2101 = ""3""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- From: 1609 = "0"
  To: 1609 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- 1607 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- 1601 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- 1406 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0
- 1400 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- 2101 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- From: 1609 = "0"
  To: 1609 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- 1607 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- 1601 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- From: 1406 = "0"
  To: 1406 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1
- 1400 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- From: 2101 = "0"
  To: 2101 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- From: 1609 = "0"
  To: 1609 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- 1607 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- 1601 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- 1406 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- 1400 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- 2101 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- From: 1609 = "0"
  To: 1609 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- 1607 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- From: 1601 = "0"
  To: 1601 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- From: 1406 = "0"
  To: 1406 = ""3""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3
- 1400 = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- From: 2101 = "0"
  To: 2101 = ""3""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- From: 1609 = "0"
  To: 1609 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- From: 1607 = "0"
  To: 1607 = ""3""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- From: 1601 = "0"
  To: 1601 = ""1""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- From: 1406 = "0"
  To: 1406 = ""3""

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4
- From: 1400 = "0"
  To: 1400 = ""3""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
- From: ThreadingModel = "Both"
  To: ThreadingModel = ""Both""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
- From: ThreadingModel = "Both"
  To: ThreadingModel = ""Both""

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32
- From: ThreadingModel = "Both"
  To: ThreadingModel = ""Both""

To restore registry values this malware/grayware modified:

Open Registry Editor. To do this:
- On Windows 2000, XP, and Server 2003:
  Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
- On Windows Vista and 7:
  Click the Start button, type REGEDIT in the Search input field then press Enter.
In the left panel, double-click the following:
HKEY_CURRENT_USER>Control Panel>Sound
In the right panel, locate the registry value:
Beep = "no"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Beep = "yes"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>0
In the right panel, locate the registry value:
2101 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
2101 = "3"
Again In the right panel, locate the registry value:
1609 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1609 = "1"
Again In the right panel, locate the registry value:
1607 = "0"
Again In the right panel, locate the registry value:
1601 = "0"
Again In the right panel, locate the registry value:
1406 = "0"
Again In the right panel, locate the registry value:
1400 = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>1
In the right panel, locate the registry value:
2101 = "0"
Again In the right panel, locate the registry value:
1609 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1609 = "1"
Again In the right panel, locate the registry value:
1607 = "0"
Again In the right panel, locate the registry value:
1601 = "0"
Again In the right panel, locate the registry value:
1406 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1406 = "1"
Again In the right panel, locate the registry value:
1400 = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>2
In the right panel, locate the registry value:
2101 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
2101 = "1"
Again In the right panel, locate the registry value:
1609 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1609 = "1"
Again In the right panel, locate the registry value:
1607 = "0"
Again In the right panel, locate the registry value:
1601 = "0"
Again In the right panel, locate the registry value:
1406 = "0"
Again In the right panel, locate the registry value:
1400 = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>3
In the right panel, locate the registry value:
2101 = "0"
Again In the right panel, locate the registry value:
1609 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1609 = "1"
Again In the right panel, locate the registry value:
1607 = "0"
Again In the right panel, locate the registry value:
1601 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1601 = "1"
Again In the right panel, locate the registry value:
1406 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1406 = "3"
Again In the right panel, locate the registry value:
1400 = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings>Zones>4
In the right panel, locate the registry value:
2101 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
2101 = "3"
Again In the right panel, locate the registry value:
1609 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1609 = "1"
Again In the right panel, locate the registry value:
1607 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1607 = "3"
Again In the right panel, locate the registry value:
1601 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1601 = "1"
Again In the right panel, locate the registry value:
1406 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1406 = "3"
Again In the right panel, locate the registry value:
1400 = "0"
Right-click on the value name and choose Modify. Change the value data of this entry to:
1400 = "3"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}>InprocServer32
In the right panel, locate the registry value:
ThreadingModel = "Both"
Right-click on the value name and choose Modify. Change the value data of this entry to:
ThreadingModel = "Both"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}>InprocServer32
In the right panel, locate the registry value:
ThreadingModel = "Both"
Right-click on the value name and choose Modify. Change the value data of this entry to:
ThreadingModel = "Both"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}>InprocServer32
In the right panel, locate the registry value:
ThreadingModel = "Both"
Right-click on the value name and choose Modify. Change the value data of this entry to:
ThreadingModel = "Both"
Close Registry Editor.

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 Profile%\Software\iguqyx.exe
%User Profile%\Software\igosyg.exe

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 Profile%\Windows\Software
%User Profile%\Application Data\VMware
%User Profile%\VMware\VMware Tools

Step 8

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_FAKEAV.KPS. 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 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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings
- Security_HKLM_only

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript
- CLSID

In HKEY_CLASSES_ROOT
- JScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript
- CLSID

In HKEY_CLASSES_ROOT
- LiveScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript1.1

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript1.2

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.3
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript1.3

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\ECMAScript
- CLSID

In HKEY_CLASSES_ROOT
- ECMAScript

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- Implemented Categories

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c260-6ac0-11cf-b6d1-00aa00bbbb58}

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript Author
- CLSID

In HKEY_CLASSES_ROOT
- JScript Author

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\LiveScript Author
- CLSID

In HKEY_CLASSES_ROOT
- LiveScript Author

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript Author
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript Author

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.1 Author
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript1.1 Author

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JavaScript1.2 Author
- CLSID

In HKEY_CLASSES_ROOT
- JavaScript1.2 Author

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- Implemented Categories

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c261-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c261-6ac0-11cf-b6d1-00aa00bbbb58}

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\JScript.Encode
- CLSID

In HKEY_CLASSES_ROOT
- JScript.Encode

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- ProgID

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- Implemented Categories

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{f414c262-6ac0-11cf-b6d1-00aa00bbbb58}
- InprocServer32

In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {f414c262-6ac0-11cf-b6d1-00aa00bbbb58}

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TROJ_FAKEAV.KPS

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TROJ_FAKEAV.KPS

OVERVIEW

TECHNICAL DETAILS

SOLUTION

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About Trend

Country Headquarters

The Americas

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