TSPY_KOVTER.A
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It modifies the Internet Explorer Zone Settings.
It connects to certain URLs. It may do this to remotely inform a malicious user of its installation. It may also do this to download possibly malicious files onto the computer, which puts the computer at a greater risk of infection by other threats.
It connects to certain websites to send and receive information. It terminates itself if it detects it is being run in a virtual environment.
TECHNICAL DETAILS
217,136 bytes
EXE
Yes
26 Jun 2014
Connects to URLs/IPs
Arrival Details
This spyware 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 spyware injects codes into the following process(es):
- svchost.exe
- default browser
Other System Modifications
This spyware adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main\FeatureControl\
FEATURE_BLOCK_INPUT_PROMPTS
{injected process} = "1"
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\policies\
Ratings
(Default) = "1"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings
GlobalUserOffline = "0"
It adds the following registry keys as part of its installation routine:
HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications
HKEY_CURRENT_USERSoftware\Local AppWizard-Generated Applications\Material_MIS
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main\FeatureControl\
FEATURE_BLOCK_INPUT_PROMPTS
Web Browser Home Page and Search Page Modification
This spyware modifies the Internet Explorer Zone Settings.
Download Routine
This spyware connects to the following malicious URLs:
- http://{BLOCKED}get.info/5/form.php
- http://{BLOCKED}fix.org/5/form.php
Information Theft
This spyware gathers the following data:
- Operating system
- Installed AV-related applications
Other Details
This spyware connects to the following website to send and receive information:
- http://{BLOCKED}x.pw/form2.php
It terminates itself if it detects it is being run in a virtual environment.
NOTES:
This spyware creates the following user account as administrator:
user name: NETWORK Service
password: KCYmap719!
It creates a temporary file TEMP.HTM to get the user's default browser. It monitors the user's default browser.
It does not perform its intended routine if the following files are found:
- a2guard.exe
- a2service.exe
- avas.exe
- avcom.exe
- avp.exe
- avss.exe
- bdagent.exe
- BullGuard.exe
- cistray.exe
- cmdagent.exe
- dwengine.exe
- dwservice.exe
- jpf.exe
- jpfsrv.exe
- oasrv.exe
- oaui.exe
- op_mon.exe
It queries the value of the following registry entry:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion
InstallDate
SOLUTION
9.700
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Restart in Safe Mode
Step 3
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\policies\Ratings
- (Default) = "1"
- (Default) = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
- GlobalUserOffline = "0"
- GlobalUserOffline = "0"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BLOCK_INPUT_PROMPTS
- {injected process} = "1"
- {injected process} = "1"
Step 4
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl
- FEATURE_BLOCK_INPUT_PROMPTS
- FEATURE_BLOCK_INPUT_PROMPTS
- In HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications
- Material_MIS
- Material_MIS
- In HKEY_CURRENT_USER\Software
- Local AppWizard-Generated Applications
- Local AppWizard-Generated Applications
Step 5
Reset Internet security settings
Step 6
Reset Internet privacy settings
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_KOVTER.A. 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.
NOTES:
To remove the added account by this malware, kindly perform the following steps:
- Open a command prompt window:
• For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type cmd in the text box provided, and press Enter
• For Windows Vista and Windows 7 users, click the Start button, type cmd in the Search input field, and press Enter - At the command prompt, type the following:
NET USER "NETWORK SERVICE" /DELETE - Press Enter.
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