TROJ_FAKEAV.SMAC
Rogue:Win32/Fakeinit (Microsoft); FakeAlert-BB (McAfee); Adware.CWSIEFeats (Symantec); Trojan.Win32.Scar.axpy (Kaspersky); Trojan-Downloader.Win32.Fakeinit (v) (Sunbelt); Application.Generic.282588 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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
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 drops the following copies of itself into the affected system:
- %Program Files%\InternetSecurity2010\IS2010.exe
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
It creates the following folders:
- %Program Files%\InternetSecurity2010
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
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
Internet Security 2010 = "%Program Files%\InternetSecurity2010\IS2010.exe"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\IS2010
It adds the following registry entries:
HKEY_CURRENT_USER\Software\IS2010
LastVFC = "25"
HKEY_CURRENT_USER\Software\IS2010
VirList = "461750122944123822403181135439160415142645551353"
HKEY_CURRENT_USER\Software\IS2010
LastD = "15"
HKEY_CURRENT_USER\Software\IS2010
LastScan = "15.11.2012 18:35"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\advapi32.dll[MofResourceName] = "{random characters}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\ACPI.sys[ACPIMOFResource] = "{random characters}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\mssmbios.sys[MofResource] = "{random characters}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\intelppm.sys[PROCESSORWMI] = "{random characters}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\ipnat.sys[IPNATMofResource] = "{random characters}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\Drivers\HTTP.sys[UlMofResource] = "{random characters}"
Dropping Routine
This Trojan drops the following files:
- %Desktop%\Internet Security 2010.lnk
- %Start Menu%\Internet Security 2010.lnk
- %User Profile%\Quick Launch\Internet Security 2010.lnk
(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\Desktop on Windows Vista and 7.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista and 7.. %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.)
This report is generated via an automated analysis system.
SOLUTION
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 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
- IS2010
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
- Internet Security 2010 = "%Program Files%\InternetSecurity2010\IS2010.exe"
- In HKEY_CURRENT_USER\Software\IS2010
- LastVFC = "25"
- In HKEY_CURRENT_USER\Software\IS2010
- VirList = "461750122944123822403181135439160415142645551353"
- In HKEY_CURRENT_USER\Software\IS2010
- LastD = "15"
- In HKEY_CURRENT_USER\Software\IS2010
- LastScan = "15.11.2012 18:35"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- %System%\advapi32.dll[MofResourceName] = "{random characters}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- %System%\DRIVERS\ACPI.sys[ACPIMOFResource] = "{random characters}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- %System%\DRIVERS\mssmbios.sys[MofResource] = "{random characters}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- %System%\DRIVERS\intelppm.sys[PROCESSORWMI] = "{random characters}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- %System%\DRIVERS\ipnat.sys[IPNATMofResource] = "{random characters}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- %System%\Drivers\HTTP.sys[UlMofResource] = "{random characters}"
Step 5
Search and delete these components
- %Desktop%\Internet Security 2010.lnk
- %Start Menu%\Internet Security 2010.lnk
- %User Profile%\Quick Launch\Internet Security 2010.lnk
Step 6
Search and delete this folder
- %Program Files%\InternetSecurity2010
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_FAKEAV.SMAC. 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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