TROJ_FAKEAV.FBP

October 08, 2012
 Analysis by: jasperm
 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

168,448 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

15 Sep 2010

Payload:

Downloads files

Arrival Details

This Trojan may be dropped by other malware.

It may be unknowingly downloaded by a user while visiting malicious websites.

However, as of this writing, the said sites are inaccessible.

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
MSORunMicrosoft = %Program Files%\{random folder}\MSORunMicrosoft.EXE

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
AdobeNPPDF32 = %Program Files%\{random folder}\adobenppdf328.1.0.2007051000.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
DataOffice = %Program Files%\{random folder}\officedata.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServices
{malware name} = {malware path and file name}.EXE

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
{malware name} = {malware path and file name}.EXE

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServices
VisualVisual = %Program Files%\{random folder}\visualvisual.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServices
Livepriphriques = %Program Files%\{random folder}\gestionnairelive.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\RunServices
pluginprcr = %Program Files%\{random folder}\plugintesselate.exe

Other Details

This Trojan attempts to access the following websites to download files, which are possibly malicious:

  • {BLOCKED}config.com
  • {BLOCKED}psecuritysolution2010.com
  • {BLOCKED}ne.in

It does the following:

  • Drops the following copies of itself into random folders in the default Program Files folder:
    • OfficeMSORUN.exe
    • OfficeData.exe
    • GestionnaireLive.exe
    • AdobeNPPDF328.1.0.2007051000.exe
    • plugintesselate.exe
    • VisualVisual.exe

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI PATTERN File:

7.465.80

VSAPI PATTERN Date:

15 Sep 2010

VSAPI PATTERN Date:

9/15/2010 12:00:00 AM

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

Identify and terminate files detected as TROJ_FAKEAV.FBP

[ Learn More ]
  1. 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.
  2. 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

[ Learn More ]

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\Run
    • MSORunMicrosoft = %Program Files%\{random folder}\MSORunMicrosoft.EXE
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • AdobeNPPDF32 = %Program Files%\{random folder}\adobenppdf328.1.0.2007051000.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • DataOffice = %Program Files%\{random folder}\officedata.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
    • {malware name} = {malware path and file name}.EXE
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • {malware name} = {malware path and file name}.EXE
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
    • VisualVisual = %Program Files%\{random folder}\visualvisual.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
    • Livepriphriques = %Program Files%\{random folder}\gestionnairelive.exe
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
    • pluginprcr = %Program Files%\{random folder}\plugintesselate.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_FAKEAV.FBP. 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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