PE_EXPIRO.BME

March 07, 2015

PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

OVERALL RISK RATING:

REPORTED INFECTION:

Threat Type: File infector
Destructiveness: No
Encrypted:
In the wild: Yes

OVERVIEW

This file infector 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

File Size:

664,064 bytes

File Type:

EXE

Memory Resident:

Initial Samples Received Date:

26 Mar 2014

Arrival Details

This file infector arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This file infector deletes the following files:

%Windows%\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{8493222B-35D1-4320-B1B9-4290CB576929}.crmlog

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

It deletes the following registry keys:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\dmio\Encapsulation Info

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\dmload\EncapsulationPending

Dropping Routine

This file infector drops the following files:

%Windows%\microsoft.net\framework\v4.0.30319\onfedbib.tmp
%System%\fmbihmbj.tmp
%System%\lklmoibl.tmp
%Windows%\microsoft.net\framework\v2.0.50727\ahmcnkdd.tmp
%Windows%\microsoft.net\framework\v4.0.30319\mkhlppml.tmp
%System%\ndkcnihp.tmp
%System%\podljnna.tmp
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngen_service.lock
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenrootstorelock.dat
%Windows%\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{05865CAE-BB41-40A9-9E9E-D4DF85949F88}.crmlog
%Windows%\microsoft.net\framework\v4.0.30319\aspnet_state.exe
%System%\cisvc.exe
%System%\clipsrv.exe
%Windows%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
%Windows%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
%System%\dllhost.exe
%System%\dmadmin.exe

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

This report is generated via an automated analysis system.

SOLUTION

Minimum Scan Engine:

9.300

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

Search and delete these components

[ Learn More ]

There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.

%Windows%\microsoft.net\framework\v4.0.30319\onfedbib.tmp
%System%\fmbihmbj.tmp
%System%\lklmoibl.tmp
%Windows%\microsoft.net\framework\v2.0.50727\ahmcnkdd.tmp
%Windows%\microsoft.net\framework\v4.0.30319\mkhlppml.tmp
%System%\ndkcnihp.tmp
%System%\podljnna.tmp
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngen_service.lock
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenrootstorelock.dat
%Windows%\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{05865CAE-BB41-40A9-9E9E-D4DF85949F88}.crmlog
%Windows%\microsoft.net\framework\v4.0.30319\aspnet_state.exe
%System%\cisvc.exe
%System%\clipsrv.exe
%Windows%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
%Windows%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
%System%\dllhost.exe
%System%\dmadmin.exe

To manually delete a malware/grayware file from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

Right-click Start then click Search....
In the File name* input box, type the following:
%Windows%\microsoft.net\framework\v4.0.30319\onfedbib.tmp
%System%\fmbihmbj.tmp
%System%\lklmoibl.tmp
%Windows%\microsoft.net\framework\v2.0.50727\ahmcnkdd.tmp
%Windows%\microsoft.net\framework\v4.0.30319\mkhlppml.tmp
%System%\ndkcnihp.tmp
%System%\podljnna.tmp
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngen_service.lock
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenrootstorelock.dat
%Windows%\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{05865CAE-BB41-40A9-9E9E-D4DF85949F88}.crmlog
%Windows%\microsoft.net\framework\v4.0.30319\aspnet_state.exe
%System%\cisvc.exe
%System%\clipsrv.exe
%Windows%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
%Windows%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
%System%\dllhost.exe
%System%\dmadmin.exe
In the Look In drop-down list, select My Computer then press Enter.
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).

• For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen,then click File Explorer.
In the Search Computer/This PC input box, type:
%Windows%\microsoft.net\framework\v4.0.30319\onfedbib.tmp
%System%\fmbihmbj.tmp
%System%\lklmoibl.tmp
%Windows%\microsoft.net\framework\v2.0.50727\ahmcnkdd.tmp
%Windows%\microsoft.net\framework\v4.0.30319\mkhlppml.tmp
%System%\ndkcnihp.tmp
%System%\podljnna.tmp
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngen_service.lock
%Windows%\Microsoft.NET\Framework\v2.0.50727\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenservicelock.dat
%Windows%\Microsoft.NET\Framework\v4.0.30319\ngenrootstorelock.dat
%Windows%\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{05865CAE-BB41-40A9-9E9E-D4DF85949F88}.crmlog
%Windows%\microsoft.net\framework\v4.0.30319\aspnet_state.exe
%System%\cisvc.exe
%System%\clipsrv.exe
%Windows%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
%Windows%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
%System%\dllhost.exe
%System%\dmadmin.exe
Once located, select the file then press SHIFT+DELETE to delete it.
*Note: Read the following Microsoft page if these steps do not work on Windows 7.

Step 3

Scan your computer with your Trend Micro product to clean files detected as PE_EXPIRO.BME. 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.

Step 4

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

%Windows%\Registration\{02D4B3F1-FD88-11D1-960D-00805FC79235}.{8493222B-35D1-4320-B1B9-4290CB576929}.crmlog

Step 5

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

In HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\dmio
- Encapsulation Info

In HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\dmload
- EncapsulationPending

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PE_EXPIRO.BME

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SOLUTION

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