TROJ_FAKEAV.SMIE
Trojan.Win32.FakeAV.bklo (Kaspersky); Mal/FakeAV-IH (Sophos)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted: Yes
In the wild: Yes
TECHNICAL DETAILS
317,952 bytes
PE
Yes
17 Mar 2011
Installation
This Trojan drops the following copies of itself into the affected system:
- %System Root%\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}.exe
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It drops the following non-malicious file:
- %System Root%\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It creates the following folders:
- %System Root%\Documents and Settings\All Users\Application Data\{random folder name}
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
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\RunOnce
{random} = "%System Root%\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}.exe"
SOLUTION
8.900
7.910.09
18 Mar 2011
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.SMIE
- 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 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\RunOnce
- {random} = %System Root%\Documents and Settings\All Users\Application Data\{random folder name}\{random file name}.exe
Step 4
Search and delete this folder
- %System Root%\Documents and Settings\All Users\Application Data\{random folder name}
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_FAKEAV.SMIE. 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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