TROJ_FRAUDL.SMMI
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
It downloads an updated copy of itself from certain websites.
This Trojan may be downloaded by other malware/grayware/spyware from remote sites. It may be unknowingly downloaded by a user while visiting malicious websites.
It installs a fake antivirus/antispyware software. It displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to a certain website asking for sensitive information, such as credit card numbers.
TECHNICAL DETAILS
Varies
PE
Yes
02 Dec 2010
Downloads files, Displays message/message boxes
Arrival Details
This Trojan may be downloaded by other malware/grayware/spyware from remote sites.
It may be unknowingly downloaded by a user while visiting malicious websites.
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
{Random Name} = {Malware Path and File Name}
Other System Modifications
This Trojan adds the following registry entries as part of its installation routine:
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\
Internet Explorer\AboutURLs
{Random Name} = {Malware URL}
It adds the following registry keys as part of its installation routine:
HKEY_LOCAL_MACHINE\SOFTWARE\infocleaner
HKEY_LOCAL_MACHINE\SOFTWARE\cleanvaccine
Download Routine
This Trojan downloads an updated copy of itself from the following website(s):
- http://{BLOCKED}.infocleaner.co.kr/ver
- http://{BLOCKED}.cleanvaccine.co.kr/version/version
Rogue Antivirus Routine
This Trojan installs a fake antivirus/antispyware software.
It displays fake alerts that warn users of infection. It also displays fake scanning results of the affected system. It then asks for users to purchase it once scanning is completed. If users decide to purchase the rogue product, users are directed to a certain website asking for sensitive information, such as credit card numbers.
SOLUTION
8.900
7.671.00
03 Dec 2010
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Terminate a process file/s detected as TROJ_FRAUDL.SMMI
*Note: If the detected file/s is/are not displayed in theWindows Task Manager, continue doing the next steps.
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\Internet Explorer\AboutURLs
- {Random Name} = {Malware URL}
- {Random Name} = {Malware URL}
- In HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Run
- {Random Name} = {Malware Path and File Name}
- {Random Name} = {Malware Path and File Name}
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_LOCAL_MACHINE\SOFTWARE
- infocleaner
- infocleaner
- In HKEY_LOCAL_MACHINE\SOFTWARE
- cleanvaccine
- cleanvaccine
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_FRAUDL.SMMI. 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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