TROJ_FAKEAV.SMES
Windows 2000, XP, Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Trojan connects to certain websites to send and receive information. It executes certain actions WITHIN the affected computer.
When users agree to buy the software, it connects to a certain URL.
TECHNICAL DETAILS
278,784 bytes
PE
Yes
04 Jul 2010
Connects to URLs/Ips
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
{random} = %User Profile%\Application Data\{random}\{random}.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
{random} = %User Profile%\Application Data\{random}\{random}.exe
Other System Modifications
This Trojan adds the following registry keys as part of its installation routine:
HKEY_CURRENT_USER\Software\avSofT
HKEY_CURRENT_USER\Software\AVSuitE
Other Details
This Trojan connects to the following website to send and receive information:
- http://{BLOCKED}tivir. microsoft.com/block.php
It executes the following:
- Displays windows from the following adult sites:
- http://www.adult.com
- http://www.porno.com
- http://www.porno.org
- http://www.viagra.com
Rogue Antivirus Routine
When users agree to buy the software, it connects to the following URL to continue the purchase:
- http://{BLOCKED}tivir.com/purchase.php
SOLUTION
8.900
7.615.00
11 Nov 2010
11/11/2010 12:00:00 AM
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
Identify and terminate files detected as TROJ_FAKEAV.SMES
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 3
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software
- In HKEY_CURRENT_USER\Software
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Step 5
Search and delete this file
Step 6
Scan your computer with your Trend Micro product to delete files detected as TROJ_FAKEAV.SMES. 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.
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